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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 471. Отображено 100.
09-05-2013 дата публикации

PRESSURE-RELIEF MECHANISM TO IMPROVE SAFETY IN LITHIUM-POLYMER BATTERY CELLS

Номер: US20130115491A1
Автор: Bhardwaj Ramesh C., Hwang Taisup, Mank Richard M.
Принадлежит: Apple Inc.

The disclosed embodiments relate to a battery cell which includes a weakness for relieving pressure. This battery cell includes a jelly roll comprising layers which are wound together, including a cathode with an active coating, a separator and an anode with an active coating. The jelly roll also includes a first conductive tab coupled to the cathode and a second conductive tab coupled to the anode. The jelly roll is enclosed in a flexible pouch, wherein the first and second conductive tabs extend through seals in the pouch to provide terminals for the battery cell. This pouch includes a weakness which yields when internal pressure in the pouch exceeds a threshold to create a hole which releases the internal pressure. 1. A battery cell with a weakness for relieving pressure , comprising:a jelly roll comprising layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating;a pouch, which encloses the jelly roll, wherein the pouch is flexible;a first conductive tab coupled to the cathode; anda second conductive tab coupled to the anode;wherein the first and second conductive tabs extend through seals in the pouch to provide terminals for the battery cell; andwherein the pouch includes a weakness which yields when internal pressure in the pouch exceeds a threshold to create a hole which releases the internal pressure.2. The battery cell of claim 1 , wherein the pouch includes multiple weaknesses at different locations on the pouch.3. The battery cell of claim 1 , wherein the weakness includes one of:a corner of the pouch which is cut;a pattern of tiny holes formed in a seal for the pouch; anda thinned region of the pouch material.4. The battery cell of claim 1 , wherein the weakness is located on one of:a side seal for the pouch;a terrace seal for the pouch;a corner of the pouch;a fold in the pouch material; anda location on a surface of the pouch which is not part of a seal.5. The battery cell of claim 1 , ...

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Номер записи: 1
06-06-2013 дата публикации

END COVER ASSEMBLY FOR BATTERY AND BATTERY CONTAINING THE SAME

Номер: US20130143078A1
Автор: Che Guoyong, SUN Huajun
Принадлежит: Shenzhen BYD Auto R&D Company Limited and BYD Company Limited

An end cover assembly for a battery with a core comprises a contact terminal, a conductive element, and a thermistor. The conductive element is in electrical communication with the core of the battery. The thermistor is disposed between the terminal and the conductive element. The thermistor electrically connects the terminal and the conductive element when the temperature of the battery is below a predetermined temperature. The thermistor electrically disconnects the terminal and the conductive element when the temperature of the battery is above the predetermined temperature. 1. An end cover assembly for a battery with a core comprising:a contact terminal; a first section being generally flat and generally parallel to the rim of the terminal;', 'a second section integral with the first section, extending from the perimeter of the first section in a direction perpendicular to the first section and toward the protruding section of the terminal; and', 'a third section integral with the second section, extending from the second section in a direction perpendicular to the second section and inward toward the protruding section of the terminal; and, 'a conductive element in electrical communication with the core of the battery, the conductive element comprisinga thermistor disposed between the terminal and the conductive element;wherein the thermistor electrically connects the terminal and the conductive element when the temperature of the battery is below a predetermined temperature; and wherein the thermistor electrically disconnects the terminal and the conductive element when the temperature of the battery is above the predetermined temperature.2. The assembly of claim 1 , wherein the thermistor comprises a polymer.3. The assembly of claim 1 , further comprising a pressure release device.4. The assembly of claim 3 , wherein the pressure release device is an opening on the terminal.5. The assembly of claim 1 , wherein the terminal is formed of steel.6. The assembly ...

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Номер записи: 2
13-06-2013 дата публикации

POWER BATTERY AND ANTI-EXPLOSION DEVICE THEREOF

Номер: US20130149568A1
Автор: DENG Pinghua, GUO Zhijun, WANG Peng, Zhang Heng
Принадлежит:

The invention relates to the power battery technology, especially to a power battery and anti-explosion device thereof, comprising an anti-explosion disc disposed in an anti-explosion bore. The surface of the anti-explosion disc is attached with an anti-explosion ring and an anti-explosion patch, the anti-explosion ring and the anti-explosion patch are at the same side of the anti-explosion disc and the anti-explosion ring and the anti-explosion patch form an annular groove. Compared with the prior art, the anti-explosion device has a simple structure, accurate explosion pressure, high intensity and it is not easy to be damaged. When the power battery is abnormal in use and the inner side has high pressure, the anti-explosion disc will explode under certain pressure to prevent explosion of the battery. It improves the safety of the power battery. 114123231235. An anti-explosion device for power battery comprising an anti-explosion disc () disposed in an anti-explosion bore () , wherein the surface of the anti-explosion disc () is attached with an anti-explosion ring () and an anti-explosion patch () , the anti-explosion ring () and the anti-explosion patch () are at the same side of the anti-explosion disc () and the anti-explosion ring () and the anti-explosion patch () form an annular groove ().21. The anti-explosion device for power battery of claim 1 , wherein the thickness of the anti-explosion disc () is smaller than 0.1 mm.32. The anti-explosion device for power battery of claim 1 , wherein the thickness of the anti-explosion ring () is smaller than 3 mm.43. The anti-explosion device for power battery of claim 1 , wherein the thickness of the anti-explosion patch () is smaller than 3 mm.523. The anti-explosion device for power battery of claim 1 , wherein the inner diameter of the anti-explosion ring () is larger than the diameter of the anti-explosion patch ().65. The anti-explosion device for power battery of claim 1 , wherein the width of the annular ...

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Номер записи: 3
01-08-2013 дата публикации

BATTERY CASE LID AND MANUFACTURING METHOD FOR BATTERY CASE LID

Номер: US20130196188A1
Автор: KOBAYASHI Masato, NOMURA Shinichi, SODE Takayuki, SUGIYAMA Yukinori
Принадлежит:

It is an objective of the present invention to provide a battery case lid and a manufacturing method for the battery case lid which inhibit work hardening of a metal plate workpiece and which facilitate manufacture of a battery case lid. Provided is a battery case lid () formed by working a metal plate, including: a substrate section () and an explosion-proof valve () formed in the substrate section (), wherein the explosion-proof valve () has a reduced thickness section () thinner than the substrate section (), and the reduced thickness section () is formed by extending the metal plate by applying pressure while the metal plate is kept unrestrained. 2. The battery case lid of claim 1 , wherein the reduced thickness section has a groove.3. The battery case lid of claim 1 , wherein the explosion-proof valve is surrounded by a cylindrical wall portion thicker than the reduced thickness section.4. The battery case lid of claim 1 , wherein the explosion-proof valve is surrounded by a folded part thicker than the reduced thickness section claim 1 , the folded part being formed by folding the metal plate.5. A manufacturing method for a battery case lid including an explosion-proof valve claim 1 , the manufacturing method comprising:an extending step of pushing an extending punch from a first side of a metal plate disposed over an extending die having a recess, to form a reduced thickness section constituting the explosion-proof valve,wherein the recess has an inter diameter greater than an outer diameter of the extending punch, andwherein in the extending step, the extending punch is pushed while the metal plate is kept unrestrained, and the metal plate is pressed to be extended between a bottom face of the recess and a pressing face of the extending punch, to form the reduced thickness section.6. The manufacturing method for the battery case lid of claim 5 , further comprising a groove forming step of forming a groove in the reduced thickness section.7. The manufacturing ...

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Номер записи: 4
01-08-2013 дата публикации

SYSTEMS AND METHODS FOR MANUFACTURING BATTERY CELLS

Номер: US20130196197A1
Автор: Fuhr Jason D., Tyler Matthew R.
Принадлежит: Johnson Controls Technology Company

A system includes a battery cell having a packaging and a coil disposed within the packaging. The battery cell further includes a first terminal electrically coupled to a portion the coil and protruding through an opening in the packaging, wherein the first terminal is hermetically sealed at the opening in the packaging using a compressive force. 1. A system , comprising: a packaging;', 'a coil disposed within the packaging;', 'a first terminal electrically coupled to a portion the coil and protruding through an opening in the packaging, wherein the first terminal is hermetically sealed at the opening in the packaging using a compressive force., 'a battery cell, comprising2. The system of claim 1 , wherein the packaging comprises a cupped portion disposed around the opening claim 1 , and wherein a press-fit ring is configured to provide the compressive force around the cupped portion to hermetically seal the first terminal.3. The system of claim 1 , wherein the battery cell comprises an insulating gasket disposed between the packaging and the first terminal at the opening in the packaging.4. The system of claim 1 , wherein the first terminal comprises a bolt having a threaded shaft disposed through the opening in the packaging.5. The system of claim 4 , wherein the first terminal comprises a nut threaded onto the shaft of the bolt claim 4 , wherein the nut is configured to provide a compressive force to a gasket disposed between the first terminal and the packaging to hermetically seal the first terminal.6. The system of claim 1 , comprising a second terminal electrically coupled to a different portion of the coil and protruding through a second opening in the packaging claim 1 , wherein the second terminal is hermetically sealed at the second opening using a second compressive force.7. The system of claim 1 , wherein the packaging of the battery cell comprises a vent feature stamped into the packaging.8. The system of claim 1 , wherein the packaging is prismatic ...

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Номер записи: 5
26-09-2013 дата публикации

BATTERY AND BATTERY SYSTEM

Номер: US20130252037A1
Автор: Chiba Daisuke
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

A battery includes a valve unit which is disposed on a first surface of a battery container to be broken when a gas pressure in the battery container increases to a predetermined value or greater, so as to guide a gas in the battery container in a direction inclined at a predetermined angle with respect to a normal direction of the first surface to discharge the gas to the outside. 1. A battery comprising:a valve unit which is disposed on a first surface of a battery container to be broken when a gas pressure in the battery container increases to a predetermined value or greater, so as to guide a gas in the battery container in a direction inclined at a predetermined angle with respect to a normal direction of the first surface to discharge the gas to the outside.2. The battery according to Claim I ,wherein the valve unit includes a break part which seals a through hole formed on the first surface and is broken when the gas pressure in the battery container increases to a predetermined value or greater, and a guide which is formed into a tubular shape, protruding from a peripheral edge of the break part toward the outside of the battery container, in which an angle between central axes of both end surfaces is inclined at a predetermined angle, and guides the gas in the direction inclined at a predetermined angle to discharge the gas to the outside when the break part is broken.3. The battery according to claim 2 ,wherein the guide is detachably joined to the break part.4. The battery according to claim 2 ,wherein the guide is rotatable around the central axis of the first end surface.5. The battery according to claim 3 ,wherein the guide is rotatable around the central axis of the first end surface.6. A battery system comprising:a battery module which is constituted by a plurality of batteries, each of which is provided with a valve unit which is disposed on a first surface of a battery container to be broken when a gas pressure in the battery container increases to ...

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Номер записи: 6
13-02-2014 дата публикации

CYLINDRICAL LITHIUM ION SECONDARY BATTERY

Номер: US20140045000A1
Автор: KIM Daekyu
Принадлежит: Samsung SDI Co., Ltd.

The present disclosure relates to a cylindrical lithium ion secondary battery, which can prevent a cylindrical can from being cracked due to an external shock applied during an assembling process while controlling a rupture pressure of the cylindrical can. The cylindrical lithium ion secondary battery includes a cylindrical can, an electrode assembly accommodated in the cylindrical can with an electrolyte, and a cap assembly sealing the cylindrical can, wherein the cylindrical can has a cylindrical bottom portion and a side portion extending from the bottom portion to the cap assembly, and a safety vent having a thickness gradient is formed on the bottom portion. 1. A cylindrical lithium ion secondary battery comprising:a cylindrical can;an electrode assembly accommodated in the cylindrical can with an electrolyte; anda cap assembly sealing the cylindrical can,wherein the cylindrical can has a cylindrical bottom portion and a side portion extending from the bottom portion to the cap assembly, and a safety vent having a thickness gradient is formed on the bottom portion.2. The cylindrical lithium ion secondary battery of claim 1 , wherein the bottom portion of the safety vent includes a first surface directed toward the electrode assembly claim 1 , a second surface opposite to the first surface and being planar claim 1 , and the safety vent is formed on the second surface.3. The cylindrical lithium ion secondary battery of claim 1 , wherein the safety vent is shaped of a circle concentric with the bottom portion and having a diameter different from that of the bottom portion.4. The cylindrical lithium ion secondary battery of claim 2 , wherein the safety vent further includes a third surface disposed between the first surface and the second surface and a pair of spaced-apart fourth surfaces connecting the third surface and the second surface.5. The cylindrical lithium ion secondary battery of claim 4 , wherein the third surface has a gradient with respect to the ...

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Номер записи: 7
13-02-2014 дата публикации

SECONDARY BATTERY

Номер: US20140045009A1
Автор: KIM Daekyu
Принадлежит: Samsung SDI Co., Ltd.

A secondary battery includes an electrode assembly, a can accommodating the electrode assembly, and a cap assembly sealing a top portion of the can and having a cap-up. The cap-up includes a base plate, a terminal in a protruding relationship with respect to an upper portion of the base plate, the terminal being at a center of the cap-up, a connection part connecting the base plate and the terminal, and a trench-shaped safety vent in the base plate. 1. A secondary battery , comprising:an electrode assembly;a can accommodating the electrode assembly; anda cap assembly sealing a top portion of the can and having a cap-up, a base plate,', 'a terminal in a protruding relationship with respect to an upper portion of the base plate, the terminal being at a center of the cap-up,', 'a connection part connecting the base plate and the terminal, and', 'a trench-shaped safety vent in the base plate., 'wherein the cap-up includes2. The secondary battery as claimed in claim 1 , wherein the safety vent has a shape of a circle along the base plate.3. The secondary battery as claimed in claim 1 , wherein:the base plate includes a top surface and a bottom surface and further includes an inner circumferential surface and an outer circumferential surface connecting the top surface and the bottom surface,the inner circumferential surface is a surface connected to the connection part, andthe outer circumferential surface is an outermost surface of the cap-up.4. The secondary battery as claimed in claim 3 , wherein:the inner circumferential surface and the outer circumferential surface are in shapes of concentric circles, andthe safety vent is formed between the inner circumferential surface and the outer circumferential surface.5. The secondary battery as claimed in claim 1 , wherein:the base plate includes top surface and a bottom surface, andthe safety vent is on the bottom surface of the base plate.6. The secondary battery as claimed in claim 5 , wherein the safety vent includes a ...

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Номер записи: 8
13-03-2014 дата публикации

BATTERY CAN FOR STORAGE BATTERY

Номер: US20140072841A1
Автор: Miyoshi Kohji, Yamada Teruaki
Принадлежит: NIPPON STEEL & SUMITOMO METAL CORPORATION

Disclosed is a battery can for a storage battery, provided with a safety valve having a first and a second score groove portion is provided to inner and outer surface of can bottom, can body, or can lid. The first and the second score groove portion face each other, and have a first and a second score groove bottom portion, which have a radius of curvature R, respectively. The R is more than 0.20 mm and less than 1.20 mm, and a distance between the bottom portions is 0.045 to 0.150 mm. The portion, which has the safety valve, is constituted by a plated steel sheet having a steel sheet portion of C content is less than 0.040 mass %, S content is less than 0.020 mass %, and tensile strength TS is less than 400 MPa, and a plate layer formed on a surface of the steel sheet portion. 1. A battery can for a storage battery , comprising:a tubular can body portion having a first end and a second end;a can bottom portion that is continuous to the can body portion so as to cover the first end of the can body portion; anda can lid portion that is continuous to the can body portion so as to cover the second end of the can body portion when constituting a battery,wherein a safety valve having a first score groove portion and a second score groove portion that are opposite to each other in a cross-sectional view in a sheet thickness direction is provided to an inner surface and an outer surface of any one of the can bottom portion, the can body portion, and the can lid portion,when viewed from a cross-section that is perpendicular to an extension direction of the first score groove portion, the first score groove portion and the second score groove portion have a first score groove bottom portion and a second score groove bottom portion, which have a radius of curvature R and a relative clearance of 0.045 mm to 0.150 mm, respectively,the radius of curvature R is more than 0.20 mm and is equal to or less than 1.20 mm, andany one of the can bottom portion, the can body portion, and ...

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Номер записи: 9
03-04-2014 дата публикации

LITHIUM SECONDARY BATTERY

Номер: US20140093761A1
Автор: INABA Akira, Kibe Masaaki, Nakamura Yusuke, Sakanaka Yuta, Tsuji Kyoji, Uenae Keiichiro, YAMADA Masayuki
Принадлежит: HITACHI MAXELL ENERGY, LTD.

There is provided a lithium secondary battery. The positive electrode includes a positive electrode mixture layer provided on one side or both sides of the current collector. The positive electrode active material includes a lithium-containing composite oxide including lithium and a transition metal. At least a part of the lithium-containing composite oxide includes nickel as transition metal. The non-aqueous electrolyte includes a halogen-substituted cyclic carbonate at a content of 0.5 to 5 mass %, when manufacturing the lithium secondary battery. The side part of the battery case includes two wide surfaces opposed to each other. The two wide surfaces are wider than the other surfaces in a side view. The side part has such a cleavable groove that is cleaved when an internal pressure of the battery exceeds a threshold. The cleavable groove is provided at a portion to intersect with a diagonal of the wide surfaces in the side view. 1. A lithium secondary battery , comprising:a battery case shaped in a hollow column, the battery case enclosing a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator,wherein the positive electrode comprising a positive electrode mixture layer comprising a positive electrode active material, a conductive assistant and a binder on one side or both sides of a current collector,wherein the positive electrode active material comprises a lithium-containing composite oxide comprising lithium and a transition metal, wherein at least a part of the lithium-containing composite oxide includes nickel as the transition metal,wherein when manufacturing the lithium secondary battery, the non-aqueous electrolyte includes a halogen-substituted cyclic carbonate at a content of 0.5 to 5 mass %,wherein the side part of the battery case includes two wide surfaces opposed to each other,wherein the two wide surfaces are wider than the other surfaces in a side view thereof,wherein the side part has such a cleavable groove that ...

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Номер записи: 10
05-01-2017 дата публикации

Electrical Over-Stress Protection for Vehicle Energy-Storage Systems

Номер: US20170005319A1
Автор: Rong Jiepeng
Принадлежит:

Provided are battery packs. Each pack may comprise: a plurality of strings electrically coupled to each other in parallel, each of the first plurality of strings comprising: a plurality of battery modules electrically coupled to each other in series, each of the first plurality of battery modules comprising: a plurality of battery cells, each of the plurality of battery cells comprising: a fuse electrically isolating a respective battery cell of the plurality of battery cells from a respective battery module. 1. A battery pack comprising: 'a fuse electrically isolating a respective battery cell of the plurality of battery cells from a respective battery module.', 'a plurality of battery cells, each of the plurality of battery cells comprising, 'a plurality of battery modules electrically coupled to each other in series, each of the first plurality of battery modules comprising, 'a plurality of strings electrically coupled to each other in parallel, each of the first plurality of strings comprising2. The battery pack of claim 1 , wherein the fuse comprises at least one of zinc claim 1 , silver claim 1 , copper claim 1 , aluminum claim 1 , iron claim 1 , tin claim 1 , or alloys thereof.3. The battery pack of claim 1 , wherein the fuse has a maximum current specification claim 1 , the maximum current specification being higher than a maximum current specification of the respective battery cell.4. The battery pack of claim 1 , wherein the fuse has a speed specification claim 1 , the speed specification being a time for the fuse to break and being in a range from 0.1 seconds to 30 minutes.5. The battery pack of claim 1 , wherein each of the plurality of battery cells further comprises a pressure disk claim 1 , the pressure disk at least partially breaking when exposed to a pressure exceeding a predetermined threshold.6. The battery pack of claim 5 , wherein the pressure disk comprises at least one of steel claim 5 , aluminum claim 5 , or alloys thereof.7. The battery ...

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Номер записи: 11
04-01-2018 дата публикации

ELECTRIC STORAGE CELL, COVERING FILM AND ELECTRIC STORAGE MODULE

Номер: US20180006284A1
Автор: Ishii Shinji, Sato Hiromi, Tsuchiya Takayuki
Принадлежит:

An electric storage cell has an electric storage element and a covering film package. The covering film package houses the electric storage element and includes: a metal layer having a first principle face on the electric storage element side and a second principle face on the opposite side of the first principle face, an internal resin layer made of synthetic resin and laminated to the first principle face, and an external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed at least in the external resin layer; wherein a stress mitigation part to mitigate any stress that tries to separate the internal resin layers that are contacting each other, and a stress concentration part where this stress concentrates, are provided between the slit and the electric storage element. 1. A electric storage cell , having:an electric storage element; and; a metal layer having a first principle face on an electric storage element side and a second principle face on an opposite side of the first principle face,', 'an internal resin layer made of synthetic resin and laminated to the first principle face, wherein the internal resin layers of the upper and lower portions are in contact with each other in a contact area including the seal area around the periphery of the electric storage element, and', 'an external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed at least in the external resin layer at a location between the seal area and the electric storage element as viewed from above,', 'wherein a stress mitigation part to mitigate any stress that tries to separate the internal resin layers that are contacting each other in the contact area, and a stress concentration part where the stress concentrates, are provided between the slit and the electric storage element as viewed from above., 'a covering film package that houses the electric storage element and comprises a covering film ...

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Номер записи: 12
03-01-2019 дата публикации

ELECTROCHEMICAL CELL HOUSING

Номер: US20190006650A1
Автор: Bryla Mark
Принадлежит: Sargent Manufacturing Company

Systems and methods for controlling the emission of gases and/or flames emitted from one or more electrochemical cells are disclosed. In one exemplary embodiment, gas emitted from an electrochemical cell located within an interior of an enclosure may be flowed through a flow restriction to reduce a pressure and/or temperature of the gas and/or the gas may be flowed through a catalyst prior to exiting through an outlet of the enclosure. 1. An electrochemical cell housing comprising:an enclosure having an interior chamber constructed and arranged to receive at least one electrochemical cell;an outlet formed in the enclosure; andat least one flow restriction constructed and arranged to allow gas emitted from the at least one electrochemical cell to flow from the interior chamber through the at least one flow restriction to the outlet.2. The electrochemical cell enclosure of claim 1 , further comprising at least one catalyst claim 1 , wherein gas emitted from the at least one electrochemical cell flows from the interior chamber through the at least one catalyst to the outlet.3. The electrochemical cell enclosure of claim 2 , wherein the at least one catalyst is located upstream from the at least one flow restriction.4. The electrochemical cell enclosure of claim 2 , wherein the at least one catalyst is located downstream from the at least one flow restriction.5. The electrochemical cell enclosure of claim 1 , wherein the one or more flow restrictions are configured to reduce a pressure of the gas by a factor between or equal to 5 and 20.6. The electrochemical cell enclosure of claim 1 , wherein the one or more flow restrictions are configured to reduce a temperature of the gas by a factor between or equal to 2 and 5.7. The electrochemical cell enclosure of claim 1 , wherein a flow path extending from the interior chamber of the enclosure to the outlet is a tortuous flow path.8. The electrochemical cell enclosure of claim 7 , wherein a predetermined vent of the at least ...

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Номер записи: 13
02-01-2020 дата публикации

CATRIDGE AND BATTERY MODULE COMPRISING SAME

Номер: US20200006723A1
Автор: KIM Seong-Tae, LEE Gyo-Eun, PARK Jun-Kyu, Park Won-Kyoung, SEONG Jun-Yeob
Принадлежит: LG CHEM, LTD.

A cartridge including a body having a first surface and a second surface opposite the first surface, the first surface being configured to seat at least a portion of a first battery cell, and a first supporting pattern disposed in a first area along an edge of the first surface of the body and corresponding to a gas pocket of the first battery cell is provided. A battery module having a plurality of such cartridges is also provided. 1. A cartridge comprising:a body having a first surface and a second surface opposite the first surface, the first surface being configured to seat at least a portion of a first battery cell; anda first supporting pattern disposed in a first area along an edge of the first surface of the body and corresponding to a gas pocket of the first battery cell.2. The cartridge according to claim 1 , wherein the first supporting pattern includes a plurality of first supporting ribs claim 1 , each first supporting rib having a wall shape that protrudes from the first surface of the body.3. The cartridge according to claim 2 , wherein the second surface is configured to seat at least a portion of a second battery cell claim 2 , andwherein the cartridge further comprises a second supporting pattern formed in a second area along an edge of the second surface of the body and corresponding to a gas pocket of the second battery cell.4. The cartridge according to claim 3 , wherein the second supporting pattern includes a plurality of second supporting ribs claim 3 , each second supporting rib having a wall shape that protrudes from the second surface of the body.5. The cartridge according to claim 2 , further comprising:an adhesive layer coated on the first supporting ribs of the first supporting pattern and configured to adhere at least a portion of the gas pocket of the first battery cell to the first supporting ribs of the first supporting pattern.6. The cartridge according to claim 2 , wherein at least one gas room is formed in the first area by the ...

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Номер записи: 14
12-01-2017 дата публикации

BATTERY PACK

Номер: US20170012261A1
Автор: CHUJO Yuki, ISHIGURO Fumihiko, Kato Takayuki, Ueda Hiromi
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

This battery pack is provided with a housing, a case, a battery cell, a sealing material and a spacer. The case includes a lid member fixed to the housing so as to close a through-hole in the housing. The lid member is bolted to a through-hole peripheral part of the housing. When the internal pressure of the case rises, part of the lid member deforms in a direction away from the through-hole peripheral part, releasing the internal pressure of the case. The battery cell is accommodated inside of the case. The sealing material is arranged between the lid member and the through-hole peripheral part so as to ensure the air-tightness of the case. The spacer is arranged between the lid member and the through-hole peripheral part so as to maintain the interval between the lid member and the through-hole peripheral part. 1. A battery pack comprising:a case including a frame, which has a through hole, and a lid, which is fixed to the frame to close the through hole, wherein the frame includes a through hole surrounding portion that surrounds the through hole, the lid is fixed to the through hole surrounding portion by a bolt, and when internal pressure of the case rises, a portion of the lid is deformed in a direction in which the portion is separated from the through hole surrounding portion to relieve the internal pressure;a battery cell accommodated in the case;a seal located between the lid and the through hole surrounding portion to hermetically seal the case; anda spacer located between the lid and the through hole surrounding portion to maintain a gap between the lid and the through hole surrounding portion.2. The battery pack according to claim 1 , wherein the spacer has a higher deformation resistance than the seal.3. The battery pack according to claim 1 , wherein the seal is configured to be in contact with an entire peripheral region of the lid.4. The battery pack according to claim 1 , wherein the spacer is located toward an inner side from the seal.5. The ...

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Номер записи: 15
12-01-2017 дата публикации

CONNECTION UNIT

Номер: US20170012268A1
Автор: Watanabe Hirotaka
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A connection unit of the present invention includes: a rail member extending in a direction where a plurality of storage elements is aligned; and a plurality of bus bar units each including an engagement portion movable along the rail member in the predetermined direction, and a bus bar fixed to electrode terminals of the storage elements adjacent to each other in the predetermined direction and connected to the engagement portion. The plurality of bus bar units engages with the rail member so as to be aligned in the predetermined direction, and the bus bar units adjacent to each other are provided so as to be movable independently along the predetermined direction. Entire assembly tolerance in the plurality of storage elements aligned in the predetermined direction can be absorbed (permitted) by adjusting distances between the independent bus bar units, thereby making it possible to easily assemble the plurality of bus bars. 1. A connection unit configured to electrically connect a plurality of storage elements aligned in a predetermined direction , the connection unit comprising:a rail member extending in the predetermined direction; anda plurality of bus bar units each including an engagement portion configured to engage with the rail member so as to be movable along the rail member in the predetermined direction, and a bus bar fixed to electrode terminals of the storage elements adjacent to each other in the predetermined direction and connected to the engagement portion, wherein:the plurality of bus bar units engages with the rail member so as to be aligned in the predetermined direction; andthe bus bar units adjacent to each other are provided so as to be movable independently along the predetermined direction.2. The connection unit according to claim 1 , wherein: a slit allowing the engagement portion to move along the predetermined direction;', 'an engagement rail configured to engage with the engagement portion;', 'an outlet portion provided at a position ...

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Номер записи: 16
14-01-2021 дата публикации

Secondary Battery and Battery Module

Номер: US20210013473A1
Автор: Lee Han Young, Lee Ji Su
Принадлежит: LG CHEM, LTD.

A secondary battery according to an embodiment of the present invention for solving the above problems includes: an electrode assembly formed by alternately stacking an electrode and a separator; a battery case accommodating the electrode assembly within a cup part of the battery case; a piezoelectric element disposed outside the cup part, the piezoelectric element being configured to receive a pressure when the battery case expands in volume, thereby supplying power to the piezoelectric element; and a punching part that has a sharp end that extends toward a target location on the battery case, the punching part being configured to punch a hole in the target location of the battery case when the power is applied to the piezoelectric element. 1. A secondary battery comprising:an electrode assembly formed by alternately stacking an electrode and a separator;a battery case accommodating the electrode assembly within a cup part of the battery case;a piezoelectric element disposed outside the cup part, the piezoelectric element being configured to receive a pressure when the battery case expands in volume, thereby supplying power to the piezoelectric element; anda punching part that has a sharp end that extends toward a target location on the battery case, the punching part being configured to punch a hole in the target location of the battery case when the power is applied to the piezoelectric element.2. The secondary battery of claim 1 , wherein the punching part is made of an electroactive polymer (EAP).3. The secondary battery of claim 1 , wherein the piezoelectric element is attached to an outer surface of the cup part.4. The secondary battery of claim 1 , wherein the piezoelectric element is attached to a central portion of the cup part.5. The secondary battery of claim 1 , wherein the piezoelectric element has a shape corresponding to a shape of a portion of the cup part.6. The secondary battery of claim 1 , further comprising a conductive wire connected to the ...

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Номер записи: 17
14-01-2021 дата публикации

SECONDARY BATTERY

Номер: US20210013474A1
Автор: WAKIMOTO Ryoichi, Yamada Hiroyuki
Принадлежит: SANYO ELECTRIC CO., LTD.

A secondary battery includes: an electrode assembly including a positive electrode plate and a negative electrode plate; an exterior housing that has an opening and houses the electrode assembly; and a sealing plate () that seals the opening. The exterior housing and the sealing plate () form a battery case. A deformable member () that deforms when the pressure inside the battery case reaches a prescribed value or higher and a gas release valve () that breaks when the pressure inside the battery case reaches a prescribed value or higher to release gas inside the battery case to the outside of the battery case are provided in the sealing plate (). A metallic reinforcing member () is connected to the inner surface of the sealing plate (). 1. A secondary battery comprising:an electrode body including a positive electrode plate and a negative electrode plate;a battery case containing the electrode body; a terminal attached to the battery case;a conductive member having an opening adjacent to the electrode body;a deformation plate that seals the opening, and a current collector;wherein the positive electrode plate or the negative electrode plate is electrically connected to the terminal via the current collector,the deformation plate, and the conductive member, the current collector has a through-hole,the deformation plate includes a thick portion which has a larger thickness than a surrounding area, in a central part of, the thick portion is disposed to face the through-hole, the current collector is welded to the thick portion to form a weld,and the deformation plate deforms when an internal pressure of the battery case reaches a predetermined value or higher, and the deformation of the deformation plate causes electrical disconnection between the positive electrode plate or the negative electrode plate and the terminal.2. The secondary battery according to claim 1 ,wherein the weld penetrates the current collector and is connected to the deformation plate, and the ...

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Номер записи: 18
19-01-2017 дата публикации

Nonaqueous secondary battery

Номер: US20170018748A1
Автор: Tomohiro Matsuura
Принадлежит: Toyota Motor Corp

A gas release valve has a valve body that is made from rubber or resin and closes a communication passage providing communication between an outside and an inside of a battery case. In an inner communication passage, which is positioned on an inner side of the battery case with respect to a valve body in the communication passage, a moisture absorber is arranged in a state where gas in the battery case is able to pass inside the inner communication passage.

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Номер записи: 19
17-04-2014 дата публикации

PRESSURE-RELIEF MECHANISM TO IMPROVE SAFETY IN LITHIUM-POLYMER BATTERY CELLS

Номер: US20140106190A1
Автор: Bhardwaj Ramesh C., Hwang Taisup, Mank Richard M.
Принадлежит: Apple Inc.

The disclosed embodiments relate to a battery cell which includes a weakness for relieving pressure. This battery cell includes a jelly roll comprising layers which are wound together, including a cathode with an active coating, a separator and an anode with an active coating. The jelly roll also includes a first conductive tab coupled to the cathode and a second conductive tab coupled to the anode. The jelly roll is enclosed in a flexible pouch, wherein the first and second conductive tabs extend through seals in the pouch to provide terminals for the battery cell. This pouch includes a weakness which yields when internal pressure in the pouch exceeds a threshold to create a hole which releases the internal pressure. 1. A battery cell with a weakness for relieving pressure , comprising:a jelly roll comprising layers which are wound together, including a cathode with a first active coating, a separator, and an anode with a second active coating;a pouch, which encloses the jelly roll, wherein the pouch is flexible;a first conductive tab coupled to the cathode; anda second conductive tab coupled to the anode;wherein the first and second conductive tabs extend through seals in the pouch to provide terminals for the battery cell; andwherein the pouch includes the weakness which yields when internal pressure in the pouch exceeds a threshold to create a hole which releases the internal pressure.2. The battery cell of claim 1 , wherein the pouch includes multiple weaknesses at different locations on the pouch.3. The battery cell of claim 1 , wherein the weakness includes one of:a corner of the pouch which is cut; anda thinned region of the pouch material.4. The battery cell of claim 1 , wherein the weakness is located on one of:a side seal for the pouch;a terrace seal for the pouch;a corner of the pouch;a fold in the pouch material; anda location on a surface of the pouch which is not part of a seal.5. The battery cell of claim 1 , wherein the pouch is comprised of:a layer ...

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Номер записи: 20
21-01-2021 дата публикации

VAPOR PRESSURE BARRIERS FOR LEAD ACID BATTERIES FOR IMPROVED WATER LOSS PERFORMANCE, SEPARATORS, SYSTEMS, AND METHODS OF MANUFACTURE AND USE THEREOF

Номер: US20210020883A1
Автор: Chambers Jeffrey K., Perry James, Roberts Margaret R., Whear J. Kevin
Принадлежит:

New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator. 115-. (canceled)16. A battery separator comprising an oil layer on a porous membrane or mat , wherein the oil layer comprises one or more selected from the group consisting of naturally derived oils and synthetically derived oils.17. The battery separator of claim 16 , wherein the oil layer comprises a paraffinic oil.18. The battery separator of claim 16 , wherein the oil layer comprises a napthenic oil.19. The battery separator of claim 16 , wherein the oil layer comprises a polyalphaolefin (PAO) oil.20. The battery separator of claim 16 , wherein the oil layer comprises an oil with polyester functionalities.21. The battery separator of claim 16 , wherein the oil layer comprises a mineral oil.22. The battery separator of claim 21 , wherein the oil layer comprises white mineral oil.23. The battery separator of claim 16 , wherein the oily layer comprises two or more naturally derived oils claim 16 , two or more synthetically derived oils claim 16 , or a mixture of at least one naturally derived oil and at least one ...

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Номер записи: 21
21-01-2021 дата публикации

ENERGY STORAGE SYSTEM HAVING STRUCTURE IN WHICH COOLANT CAN BE FED INTO BATTERY MODULE

Номер: US20210021002A1
Автор: Lee Jin-Kyu
Принадлежит: LG CHEM, LTD.

An energy storage system includes a module stack having a plurality of battery modules stacked vertically; a venting detecting unit configured to detect a venting when the venting occurs in at least a part of the plurality of battery modules; and a coolant supplying unit configured to supply a coolant to a battery module at which a venting occurs when the venting of the battery module is detected by the venting detecting unit. 1. An energy storage system , comprising:a module stack having a plurality of battery modules stacked vertically;a venting detector configured to detect a venting when the venting occurs in at least one of the plurality of battery modules; anda coolant supplier configured to supply a coolant to the at least one battery module at which the venting occurs when the venting of the battery module is detected by the venting detector.2. The energy storage system according to claim 1 , wherein the venting detector is provided inside the coolant supplier.3. The energy storage system according to claim 1 ,wherein each of the plurality of battery modules includes:a plurality of battery cells; anda module case configured to accommodate the plurality of battery cells.4. The energy storage system according to claim 3 , wherein the module case has a vent that is ruptured according to an increase of an internal pressure of the battery module to discharge an internal gas.5. The energy storage system according to claim 4 , wherein the vent is a resin film that is melted at a reference temperature or above.6. The energy storage system according to claim 4 , further comprising:a coolant supply channel configured to extend along a stacking direction of the module stack and communicate with a first vent on a first side of each of the plurality of battery modules; anda coolant collection channel configured to extend along the stacking direction of the module stack and communicate with a second vent on a second side of each of the plurality of battery modules.7. The ...

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Номер записи: 22
28-01-2016 дата публикации

BATTERY CASE

Номер: US20160028057A1
Автор: KANAMORI Keiji, Moriyama Yoshihiko, NOMURA Shinichi, SODE Takayuki, SUGIYAMA Yukinori
Принадлежит: NIKKEIKIN ALUMINUM CORE TECHNOLOGY COMPANY LTD.

A battery case provided with a safety valve () in which a breakage groove () is used, wherein in order to stabilize the operation pressure, a lid () of the battery case has formed thereon: a thin plate portion () obtained by thinning a plate part (); and a first recessed part () comprising a curved part () in which the thin plate portion () is indented inward, with respect to the case, in a curved shape. The breakage groove () for the safety valve () is formed at the bottom part () of the curved part (). A first connecting portion () and a second connecting portion () of the plate part (), which connect to the curved part () on both sides flanking the curved part (), are at positions protruding toward the outside of the case from the plate part (). 1. A battery case in which a breakage groove for a safety valve is formed in a plate part constituting any surface of a case formed by machining a metal plate , the battery case comprising:a first recessed part, which is indented inward with respect to the case and is formed in the plate part, andwherein the breakage groove is formed in a middle or substantially the middle of a bottom part of the first recessed part.2. The battery case according to claim 1 , whereinin a first connecting portion and a second connecting portion that connect to the first recessed part on both sides flanking the first recessed part in the plate part, a ratio between a height dimension of the first connecting portion from a bottom part of the first recessed part and a height dimension of the second connecting portion from the bottom part of the first recessed part is within a range from 0.5:1.0 to 1.0:0.5.3. The battery case according to claim 2 , whereinat least one of the first connecting portion and the second connecting portion is constituted by a folded portion in which the plate part is folded multiple times in a thickness direction thereof.4. The battery case according to claim 3 , whereina portion in the folded portion that overlaps a ...

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Номер записи: 23
25-01-2018 дата публикации

Intumescent Battery Housing

Номер: US20180026245A1
Автор: Luo Xiaoxiong, Page John B.
Принадлежит:

A battery housing has a body and a lid mateable with the body. The body and the lid, when mated, provide a chamber dimensioned to hold at least one battery; and a venting passageway from the chamber. At least a portion of at least one of the body and the lid comprises an intumescent flame retardant material with an expansion ratio sufficient to drive gas from the chamber through the venting passageway and to seal the chamber when the material intumesces in the event of thermal runaway of a battery housed in the chamber. 1. A battery housing comprising:a first housing portion; anda second housing portion mateable with said first housing portion; a chamber dimensioned to hold at least one battery; and', 'a venting passageway from said chamber;, 'said first housing portion and said second housing portion, when mated, providingat least a portion of at least one of said first housing portion and said second housing portion comprising an intumescent flame retardant material with an expansion ratio sufficient to drive gas from said chamber through said venting passageway and to seal said chamber, when said material intumesces in the event of thermal runaway of a battery housed in said chamber,a first metal plug embedded in said first housing portion so as to extend from said chamber to an exterior of said housing and a second metal plug embedded in said second housing portion so as to extend from said chamber to an exterior of said housing, said first metal plug and said second metal plug for providing an electrical connection to a battery housed in said chamber.2. The battery housing of claim 1 , wherein said expansion ratio of said intumescent flame retardant material is at least 1.2.3. A battery housing comprising:a first housing portion; anda second housing portion mateable with said first housing portion; a chamber dimensioned to hold at least one battery; and', 'a venting passageway from said chamber;, 'said first housing portion and said second housing portion, when ...

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Номер записи: 24
05-02-2015 дата публикации

RUPTURE DISK

Номер: US20150034172A1
Автор: Khamitkar Sudheer
Принадлежит:

A rupture disk is provided for relieving pressure between the interior of a battery box and the exterior of the battery box, the box having an outlet opening. The apparatus includes a first layer that provides a gasket which abuts the battery box, the gasket having a central opening which aligns with the battery box opening. A second layer is in the form of a reverse buckling disk having a disk flange, a domed portion and a weakened portion on the dome that defines a disk burst pressure, the second layer having concave and convex sides. A third layer that is an outlet ring that sandwiches the second layer in between the first and the third layer layers, the outlet ring having a central opening surrounded by an edge. A plurality of teeth on the third layer extend from said edge inwardly a distance. A plurality of tabs are provided on the first and third layers, said tabs including circumferentially spaced apart tabs on each of said first and third layers, each tab having a tab opening, said tabs generally aligning so that a fastener can be passed through the tab openings of the first layer and the third layer. The third layer is attached to the second layer which is a metal disk by means of spot weld around the disk flange and the first layer attached to the metal disk by means of an adhesive thus forming a rupture disk assembly. The fasteners affix this rupture disk assembly to the box. The second layer is generally circular and surrounded by the fasteners. The teeth are positioned on the concave side of the second layer. In a preferred embodiment, the teeth do not extend so far inwardly that they extend inwardly beyond the weakened portion or score. From any radial line extending from the center of the layers, the weakened portion is reached before any tooth, the teeth thus being spaced radially a distance equal to or greater than the weakened portion or score. 1. A rupture disk for relieving pressure between the interior of a container and the exterior of the ...

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Номер записи: 25
02-02-2017 дата публикации

BATTERY PACK

Номер: US20170033341A1
Автор: CHUJO Yuki, ISHIGURO Fumihiko, Kato Takayuki, Ueda Hiromi
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A battery pack has a sealed case. Battery modules are housed in the sealed case. Each battery module contains multiple battery cells. The sealed case has a main body having an opening. The opening in the main body is closed by a rectangular plate-shaped lid member. The lid member has a first releasing portion and a second releasing portion, which are opened when the internal pressure of the sealed case increases. The second releasing portion is arranged below the first releasing portion in the vertical direction. 1. A battery pack comprising:a plurality of battery cells, each of which includes a case having a pressure relief valve and an electrode assembly accommodated in the case;a sealed case, which accommodates the battery cells; andreleasing portions, which are provided in the sealed case and release an internal pressure of the sealed case,wherein the releasing portions include a first releasing portion and a second releasing portion, which is located below the first releasing portion in a vertical direction.2. The battery pack according to claim 1 , wherein the first releasing portion and the second releasing portion are provided in a same side wall that constitutes the sealed case.3. A battery pack comprising:a plurality of battery cells, each of which includes a case having a pressure relief valve and an electrode assembly accommodated in the case;a sealed case, which accommodates the battery cells; andreleasing portions, which are provided in the sealed case and release an internal pressure of the sealed case,wherein each of the releasing portions is formed by a lid member, which is attached to an opening edge of the sealed case by a joint portion,wherein the releasing portions include a first releasing portion and a second releasing portion, which is located below the first releasing portion in a vertical direction,wherein the lid member forms a side wall of the sealed case, andwherein when the first releasing portion and the second releasing portion are ...

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Номер записи: 26
02-02-2017 дата публикации

ELECTRICITY STORAGE DEVICE

Номер: US20170033342A1
Автор: Majima Masatoshi, Ueda Mitsuyasu
Принадлежит:

An electricity storage device includes: an electrode group that includes a first electrode, a second electrode, and a separator electrically insulating the first electrode from the second electrode; an electrolyte; a case that accommodates the electrode group and the electrolyte and has an opening; and a sealing plate that seals the opening of the case. The sealing plate has a degassing valve. The degassing valve has a circular easily breakable part. The easily breakable part has a linear first groove, a linear second groove, and a linear third groove. Firs(ends of the first groove, the second groove, and the third groove meet at the Center of the easily breakable part. 21121311231. The electricity storage device according to claim 1 , wherein ratios L/R claim 1 , L/R claim 1 , and L/R claim 1 , which are ratios of a length L of the first groove claim 1 , a length L of the second groove claim 1 , and a length L of the third groove to a radius R of the easily breakable part claim 1 , are 0.98 to 1.02.3121223233131. The electricity storage device according to claim 1 , wherein a ratio D/D of a residual thickness D of the easily breakable part at the first groove to a residual thickness D of the easily breakable part at the second groove claim 1 , a ratio D/D of the residual thickness D of the easily breakable part at the second groove to a residual thickness D of the easily breakable part at the third groove claim 1 , and a ratio D/D of the residual thickness D of the easily breakable part at the third groove to the residual thickness D of the easily breakable part at the first groove are 0.98 to 1.02.4123123. The electricity storage device according to claim 1 , wherein an obtuse angle θ formed by the first groove and the second groove claim 1 , an obtuse angle θ formed by the second groove and the third groove claim 1 , and an obtuse angle θ formed by the third groove and the first groove are (120×0.98)° to (120×1.02)° claim 1 , and a sum of the θ claim 1 , the θ ...

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Номер записи: 27
04-02-2016 дата публикации

DEGASSING VALVE

Номер: US20160036025A1
Автор: HOFER Guido
Принадлежит:

The present invention relates to a degassing valve () for degassing a housing (), in particular a housing () of a battery () of a motor vehicle, as well as such a battery (). The degassing valve () comprises a membrane () that is water-proof but yet breathable. A tensioning frame () presses the membrane () against a support element () with a predetermined pressing force. The pressing force is lower than a trigger force at which the membrane () detaches from the support element () and exposes a fluid channel () between an interior () of the housing and surroundings () of the housing. 113-. (canceled)14. A degassing valve for degassing a housing of a motor vehicle , the valve comprising:a support element coupled to the housing;a membrane, the membrane being water-proof and breathable; anda tensioning frame configured to press the membrane against the support element with a pressing force,wherein the tensioning frame is configured such that when a pressure difference between an interior of the housing and a surrounding of the housing exceeds a trigger force, the membrane detaches from the support element and exposes a fluid channel between the interior of the housing and the surrounding of the housing, the exposed fluid channel being configured to degas the interior of the housing.15. The degassing valve according to claim 14 , wherein the tensioning frame and the membrane are disposed in such a way that the tensioning frame presses the membrane in a direction toward the interior of the housing.16. The degassing valve according to claim 14 , wherein the tensioning frame includes at least one spring element configured to press the tensioning frame in a direction toward the support element.17. The degassing valve according to claim 16 , wherein the at least one spring element includes at least one flexible spring.18. The degassing valve according to claim 17 , wherein the at least one flexible spring includes at least one leaf spring.19. The degassing valve according to ...

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Номер записи: 28
01-05-2014 дата публикации

DEVICE FOR AIDING IN THE FRACTURE OF A VENT OF AN ELECTROCHEMICAL CELL

Номер: US20140120384A1
Автор: Fuhr Jason D., Tyler Matt
Принадлежит: Johnson Controls - SAFT Advanced Power Solutions LLC

A device for aiding in the fracture of a vent of an electrochemical cell includes a main body having a first surface and a plurality of lobes extending out from the first surface of the main body such that an open space is provided between adjacent lobes. Each of the plurality of lobes are configured to make contact with the vent during deployment of the vent such that the vent completely separates from a bottom of the electrochemical cell. The open space provided between adjacent lobes is configured to allow gases from inside the electrochemical cell to pass through during deployment of the vent. 1. A device for aiding in the fracture of a vent of an electrochemical cell , the device comprising:a main body having a first surface; anda plurality of lobes extending out from the first surface of the main body such that an open space is provided between adjacent lobes, wherein each of the plurality of lobes are configured to make contact with the vent during deployment of the vent such that the vent completely separates from a bottom of the electrochemical cell, wherein the open space provided between adjacent lobes is configured to allow gases from inside the electrochemical cell to pass through during deployment of the vent.2. The device of claim 1 , wherein each of the plurality of lobes is configured to contact a portion of an outer edge of the vent during deployment of the vent.3. The device of claim 2 , wherein each of the plurality of lobes comprises a first end coupled to the first surface of the main body and a second end opposite the first end claim 2 , the second end comprising an edge configured to contact the vent during deployment of the vent.4. The device of claim 1 , wherein the main body defines an aperture configured to receive a portion of a current collector therethrough.5. The device of claim 4 , wherein each of the plurality of lobes comprises a leading edge adjacent the aperture defined by the main body and a trailing edge provided a ...

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Номер записи: 29
30-01-2020 дата публикации

Secondary Battery

Номер: US20200035968A1
Автор: Bok Cheon Hee, Ji Sang Gu, Kim Da Na, KIM Sang Uck, Kim Yong Han, Lee Myung An, Park Geun Young
Принадлежит: LG CHEM, LTD.

A secondary battery is disclosed. 1. A secondary battery comprising:an electrode assembly;a battery can defining an outer wall accommodating the electrode assembly therein, the outer wall comprising a main body having a first thickness and a slim part having a second thickness thinner than the first thickness; andthe a coating part applied to the slim part and made of a metal material having a tensile strength less than a tensile strength of the slim part.2. The secondary battery of claim 1 , wherein the battery can comprises a beading part provided in an upper portion of the battery can and having a shape that is recessed inward claim 1 , and the slim part and the coating part are located below the beading part.3. The secondary battery of claim 1 , wherein the coating part has a third thickness claim 1 , and a sum of the second thickness of the slim part and the third thickness of the coating part is the same as the first thickness of the main body of the outer wall of the battery can.4. The secondary battery of claim 1 , wherein the slim part has a shape having at least two surfaces claim 1 , and the at least two surfaces extend in different directions and intersect each other.5. The secondary battery of claim 4 , wherein the at least two surfaces radially intersect each other.6. The secondary battery of claim 4 , wherein a crossing portion of the slim part in which the at least two surfaces intersect each other has a fourth thickness less than the second thickness of a remaining portion of the slim part.7. The secondary battery of claim 1 , wherein a ratio of the second thickness of the slim part to the first thickness of the main body of the outer wall of the battery can is 0.6 to 0.7.8. The secondary battery of claim 1 , wherein the second thickness of the slim part is 0.09 mm to 0.11 mm claim 1 , and the first thickness of the main body of the outer wall of the battery can is 0.14 mm to 0.16 mm.9. The secondary battery of claim 2 , wherein the slim part and ...

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Номер записи: 30
04-02-2021 дата публикации

BATTERY HOUSING FOR AT LEAST ONE BATTERY CELL HAVING A CERAMIC OR GLASS-LIKE OR METALLIC PROTECTIVE COATING, AND MOTOR VEHICLE

Номер: US20210036284A1
Автор: KRUSE Lars, Schüssler Martin
Принадлежит: Audi AG

A housing for at least one battery cell of an electrical energy accumulator of an at least partially electrically operated motor vehicle, having an interior of the battery housing, which is designed for arranging the at least one battery cell, and having at least one protective coating formed on at least one housing wall of the battery housing and facing toward the interior, wherein the protective coating is ceramic or glass-like or metallic and is designed to generate a degassing flow in the event of degassing of the battery cell from the interior of the battery housing. The disclosure furthermore relates to a motor vehicle. 1. A battery housing comprising:at least one battery cell of an electrical energy accumulator of an at least partially electrically operated motor vehicle, having an interior of the battery housing, which is designed for arranging the at least one battery cell, and having at least one protective coating formed on at least one housing wall of the battery housing and facing toward the interior, andthe protective coating is ceramic or glass-like or metallic and is designed to generate a degassing flow in the event of degassing of the battery cell from the interior of the battery housing.2. The battery housing as claimed in claim 1 , wherein the battery housing has a degassing opening claim 1 , which is designed to discharge the degassing flow from the interior into an environment of the battery housing.3. The battery housing as claimed in claim 2 , wherein the degassing opening has a bursting membrane claim 2 , which is designed to burst in the event of a predetermined degassing pressure in the interior and to discharge the degassing flow into the environment.4. The battery housing as claimed in claim 1 , wherein the battery housing has an additional degassing element which is designed to be arranged between the battery cell and at least one housing wall in the interior.5. The battery housing as claimed in claim 4 , wherein the degassing element ...

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Номер записи: 31
04-02-2021 дата публикации

BATTERY MODULE, SECONDARY BATTERY AND CAP PLATE ASSEMBLY THEREOF

Номер: US20210036285A1
Автор: HUANG Siying, LI Quankun, Wang Xuehui, XU Jinmei, ZHANG Shiyao, ZHAO Fenggang
Принадлежит: Contemporary Amperex Technology Co., Limited

Provided are a battery module, a secondary battery and a cap plate assembly. The battery module includes a plurality of secondary batteries arranged in sequence. The secondary battery includes an electrode assembly, a case and a cap plate assembly. The electrode assembly is received in the case and the cap plate assembly is connected to the case. The cap plate assembly includes a cap plate, an explosion-proof sheet and a fixing piece. The cap plate is disposed with a through hole, the explosion-proof sheet is disposed at the cap plate and seals the through hole, and the explosion-proof sheet has a weak region. The fixing piece connects the cap plate and the explosion-proof sheet. The fixing piece has a lower melting point than the cap plate and the explosion-proof sheet. 1. A cap plate assembly of a secondary battery , comprising a cap plate , an explosion-proof sheet and a fixing piece; wherein ,the cap plate is disposed with a through hole, the explosion-proof sheet is disposed at the cap plate and seals the through hole, and the explosion-proof sheet has a weak region;the fixing piece connects the cap plate and the explosion-proof sheet, the fixing piece has a lower melting point than the cap plate and the explosion-proof sheet;the explosion-proof sheet is configured as that: when the fixing piece does not melt, the weak region is capable of breaking in a case that an internal gas pressure of the secondary battery exceeds a gas pressure required for breakage of the weak region; when the fixing piece melts, the explosion-proof sheet is at least partially separated from the cap plate in a case that the internal gas pressure of the secondary battery is smaller than the gas pressure required for breakage of the weak region.2. The cap plate assembly according to claim 1 , wherein the fixing piece is an alloy and the alloy has a melting point of 50° C.-300° C.3. The cap plate assembly according to claim 2 , wherein the alloy is a tin-Bismuth alloy or a tin-copper- ...

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Номер записи: 32
04-02-2021 дата публикации

VENT SHIELD FOR A BATTERY MODULE

Номер: US20210036301A1
Автор: DeKeuster Richard M., Trester Dale B.
Принадлежит:

The present disclosure relates generally to a battery module having a housing and a stack of battery cells disposed in the housing. Each battery cell has a battery cell terminal and a battery cell vent on an end of each battery cell, and the battery cell vent is configured to exhaust effluent into the housing. The battery module has a vent shield plate disposed in the housing and directly along an immediate vent path of the effluent, a first surface of the vent shield plate configured to direct the effluent to an opening between the shield plate and the housing, and a second surface of the vent shield plate opposite the first surface. The battery module also has a venting chamber coupled to the opening and at least partially defined by the second surface and a vent configured to direct the effluent out of the battery module. 19-. (canceled)10. A battery module , comprising:a housing;a receptacle of the housing configured to receive a stack of battery cells, wherein each battery cell of the stack of battery cells has an end comprising a battery cell terminal and a battery cell vent, and the battery cell vent is configured to exhaust battery cell effluent;an integrated sensing and bus bar subassembly positioned directly along a vent path of the battery cell effluent;a vent shield plate of the integrated sensing and bus bar subassembly, wherein the vent shield plate comprises a first surface and a second surface, and wherein the first surface is configured to absorb kinetic energy and thermal energy from the battery cell effluent and to direct the battery cell effluent to an opening in the integrated sensing and bus bar subassembly; anda module cover disposed over the integrated sensing and bus bar subassembly and against the housing, wherein the module cover and the second surface of the vent shield plate at least partially define a venting chamber configured to receive the battery cell effluent after the battery cell effluent has passed through the opening, and ...

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Номер записи: 33
11-02-2016 дата публикации

SECONDARY BATTERY AND BATTERY MODULE INCLUDING SECONDARY BATTERY

Номер: US20160043368A1
Автор: Kim Dukjung
Принадлежит:

In one embodiment, a secondary battery includes: an electrode assembly, a case accommodating the electrode assembly, a cap plate sealing an opening of the case, and an extinguishing member coupled to an exterior side of the case and comprising an extinguishing agent. A battery modules includes: a plurality of secondary batteries each including an electrode assembly, a case accommodating the electrode assembly and a cap plate sealing an opening of the case; and an extinguishing member coupled to exterior sides of the plurality of secondary batteries. 1. A secondary battery comprising:an electrode assembly;a case accommodating the electrode assembly;a cap plate sealing an opening of the case; andan extinguishing member coupled to an exterior side of the case and comprising an extinguishing agent.2. The secondary battery of claim 1 , wherein the extinguishing member is at a sidewall of the case.3. The secondary battery of claim 1 , wherein the extinguishing member has an opening at one surface in contact with the case.4. The secondary battery of claim 1 , wherein an extinguishing vent having a relatively small thickness is at a region corresponding to the extinguishing member.5. The secondary battery of claim 4 , wherein the extinguishing member has an opening at one surface in contact with the case claim 4 , and the opening of the extinguishing member and the extinguishing vent correspond to each other.6. The secondary battery of claim 4 , wherein when an internal pressure of the case exceeds a first reference pressure claim 4 , the extinguishing vent opens to allow the extinguishing agent of the extinguishing member to scatter into an interior of the case.7. The secondary battery of claim 4 , wherein the cap plate comprises a safety vent that opens when an internal pressure of the case exceeds a second reference pressure.8. The secondary battery of claim 7 , wherein the extinguishing vent opens before the safety vent.9. The secondary battery of claim 7 , wherein the ...

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Номер записи: 34
09-02-2017 дата публикации

BATTERY PACK

Номер: US20170040575A1
Автор: BANG Wonkyu
Принадлежит:

A battery pack includes a plurality of electrode assemblies, a lower housing including a plurality of receiving parts that receive the plurality of electrode assemblies, an upper cap coupled to a top portion of the lower housing, the upper cap sealing the plurality of receiving parts, and an upper housing combined with the lower housing. 1. A battery pack , comprising:a plurality of electrode assemblies;a lower housing including a plurality of receiving parts that receive the plurality of electrode assemblies;an upper cap coupled to a top portion of the lower housing, the upper cap sealing the plurality of receiving parts; andan upper housing combined with the lower housing.2. The battery pack as claimed in claim 1 , wherein:the lower housing and the upper cap are made of a plastic material, andthe upper cap and the lower housing are welded to each other by ultrasonic welding to be integrally coupled with each other.3. The battery pack as claimed in claim 1 , wherein:the lower housing includes a bottom surface, a pair of long side surfaces upwardly extending from the bottom surface and a pair of short side surfaces connecting the pair of long side surfaces, andbarriers are located between each of the plurality of receiving parts, the barriers being parallel to the long side surfaces.4. The battery pack as claimed in claim 3 , wherein the barriers include connecting grooves into which electrode tabs of adjacent electrode assemblies are bent and placed.5. The battery pack as claimed in claim 4 , wherein the pair of long side surfaces include draw-out grooves into which electrode tabs of outermost electrode assemblies among the plurality of electrode assemblies are bent and drawn out.6. The battery pack as claimed in claim 5 , wherein:each of electrode tabs drawn out from the draw-out grooves includes a sealing member, andthe electrode tabs are bent upwardly from the draw-out grooves and are mounted on the upper cap.7. The battery pack as claimed in claim 6 , further ...

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Номер записи: 35
08-02-2018 дата публикации

RECHARGEABLE BATTERY HAVING CURRENT COLLECTOR

Номер: US20180040918A1
Автор: Guen Minhyung
Принадлежит:

A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a case receiving the electrode assembly; a cap plate bonded to the case; a first terminal electrically connected to the first electrode and protruded outside the cap plate; and a first current collector electrically connecting the first electrode and the first terminal, and the first current collector includes a first groove formed in a first surface facing toward the first electrode. 1. A rechargeable battery comprising:an electrode assembly including a first electrode and a second electrode;a case receiving the electrode assembly;a cap plate bonded to the case;a first terminal electrically connected to the first electrode and protruded outside the cap plate; anda first current collector electrically connecting the first electrode and the first terminal,wherein the first current collector includes a first groove formed in a first surface facing toward the first electrode.2. The rechargeable battery of claim 1 , wherein the first electrode comprises a first electrode tab protruded toward the cap plate claim 1 , the first electrode tab includes a bonding part welded to the first current collector claim 1 , and the bonding part is in the first groove.3. The rechargeable battery of claim 2 , wherein the bonding part is made of an ultrasonic welding part formed by ultrasonic welding.4. The rechargeable battery of claim 1 , wherein the first electrode comprises a protruded first electrode tab claim 1 , and the first electrode tab is inserted in the first groove.5. The rechargeable battery of claim 1 , wherein the first current collector comprises a plurality of minute protrusions in the first groove.6. The rechargeable battery of claim 1 , wherein the first current collector includes a second groove formed in a second surface facing toward a direction opposite to the first surface formed with the first groove.7. The rechargeable battery of claim 6 , wherein the ...

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Номер записи: 36
18-02-2021 дата публикации

Secondary battery

Номер: US20210050571A1
Автор: Byoung Min CHUN
Принадлежит: Samsung SDI Co Ltd

The present invention relates to a secondary battery enabling enhanced safety in case of an external short circuit. According to one example, the secondary battery comprises: an electrode assembly; a case for accommodating the electrode assembly; and a cap assembly coupled to the top of the case. The cap assembly comprises: a cap-up; a safety vent provided below the cap-up; a cap-down provided below the safety vent and having a through hole and a gas discharge hole; an insulator provided between the safety vent and the cap-down; a sub-plate provided below the cap-down; and a solder member for electrically connecting the safety vent and the sub-plate. The safety vent and the sub-plate are electrically connected by means of soldering.

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Номер записи: 37
18-02-2021 дата публикации

BATTERY MODULE

Номер: US20210050572A1
Автор: Omura Tetsuji, Takano Akira
Принадлежит:

A battery module includes a battery and a covering put over a surface of the battery. The surface of the battery is provided with a valve to release gas produced inside the battery. The covering includes a thin-walled part and a thick-walled part disposed in a region contiguous to the thin-walled part. The thin-walled part is formed thinner in thickness than the thick-walled part. 1. A battery module comprising:a battery assembly including a plurality of stacked batteries;a covering put over a surface of the battery assembly; anda fastener to fix the covering to the battery assembly,wherein the battery assembly has a first insertion hole that is designed for insertion of the fastener,wherein the covering includes a step portion including a first segment extending at a level relatively near to the surface of the battery assembly, and a second segment extending at a level relatively remote from the surface of the battery assembly, and a second insertion hole disposed in the first segment, the second insertion hole being designed for insertion of the fastener, andwherein the fastener is inserted into both the first insertion hole and the second insertion hole so that the battery assembly and the covering are fixed to each other.2. The battery module according to claim 1 ,wherein the battery assembly has a support projecting toward the covering and supporting the covering, andwherein the support has a first bent part extending along a surface of the covering adjacent to the battery assembly and abutting on the surface of the covering.3. The battery module according to claim 2 , wherein the covering has a second bent part extending along an end surface of the first bent part and abutting on the end surface of the first bent part.4. The battery module according to claim 1 ,wherein a surface of each of the batteries facing the covering is provided with an output terminal and a valve to release gas produced inside each of the batteries, andwherein the first insertion hole ...

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Номер записи: 38
16-02-2017 дата публикации

SECONDARY BATTERY

Номер: US20170047565A1
Автор: Byun Sangwon, Oh Jeongwon
Принадлежит:

A secondary battery according to one or more embodiments includes a case defining an inner space, an electrode assembly in the case, the electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates, a cap plate sealing the case and electrically connected to the first electrode plate of the electrode assembly, the cap plate including a safety vent, an electrode terminal part extending through the cap plate, and a connector having a first end electrically connected to the electrode terminal part and a second end electrically connected to the safety vent. 1. A secondary battery comprising:a case defining an inner space; a first electrode plate;', 'a second electrode plate; and', 'a separator between the first and second electrode plates;, 'an electrode assembly in the case, the electrode assembly comprisinga cap plate sealing the case and electrically connected to the first electrode plate of the electrode assembly, the cap plate comprising a safety vent;an electrode terminal part extending through the cap plate; anda connector having a first end electrically connected to the electrode terminal part and a second end electrically connected to the safety vent.2. The secondary battery of claim 1 , further comprising a lead tab electrically connected to the electrode assembly claim 1 , and electrically connecting the cap plate to the first electrode.3. The secondary battery of claim 2 , wherein the lead tab comprises:a collection part contacting the first electrode plate;an extension part extending from an upper portion of the collection part; anda contact part at an end of the extension part.4. The secondary battery of claim 1 , wherein the electrode terminal part comprises:a coupling terminal;an electrode terminal extending through the cap plate and through the coupling terminal, and electrically coupled to the coupling terminal; anda coupling plate electrically insulating the coupling ...

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Номер записи: 39
16-02-2017 дата публикации

ELECTRICITY STORAGE DEVICE

Номер: US20170047566A1
Автор: Okuda Hiroyuki, Omura Seiji
Принадлежит: SANYO ELECTRIC CO., LTD.

A battery pack includes a plurality of unit cells, each including a cylindrical battery case, and a connecting member () that connects the unit cells to each other. The battery case of each unit cell includes a bottom surface portion () including a plurality of gas discharging sections () that open when an internal pressure of the unit cell reaches a predetermined pressure. The gas discharging sections () are separated from each other. The connecting member () is joined to a non-opening section () of the bottom surface portion (), the non-opening section () being disposed between the gas discharging sections (). 1. An electricity storage device comprising:a plurality of storage cells, each including a cylindrical cell case; and wherein the cell case of each storage cell includes a bottom surface portion including a plurality of gas discharging sections that open when an internal pressure of the storage cell reaches a predetermined pressure, the gas discharging sections being separated from each other, and', 'wherein the connecting member is joined to a non-opening section of the bottom surface portion of the cell case, the non-opening section being disposed between the gas discharging sections., 'a connecting member that connects the storage cells to each other,'}2. The electricity storage device according to claim 1 , 'wherein the connecting member is joined to the center of the bottom surface portion of the cell case.', 'wherein the number of gas discharging sections is 2 or 3, the gas discharging sections being arranged so as to be line-symmetric about a straight line that passes through a center of the bottom surface portion of the cell case or rotationally symmetric about the center of the bottom surface portion of the cell case, and'}3. The electricity storage device according to claim 2 , wherein the non-opening section claim 2 , which is disposed between the gas discharging sections claim 2 , is wider than the connecting member claim 2 , andwherein the ...

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Номер записи: 40
15-02-2018 дата публикации

ELECTRIC STORAGE CELL, COVERING FILM AND ELECTRIC STORAGE MODULE

Номер: US20180047960A1
Автор: Ishii Shinji, Sato Hiromi, Tsuchiya Takayuki, YOKOSHIMA Katsunori
Принадлежит:

An electric storage cell has an electric storage element and a covering film package. The covering film package houses the electric storage element and includes: a metal layer having a first principle face on the electric storage element side and a second principle face on the opposite side of the first principle face, an internal resin layer made of synthetic resin and laminated to the first principle face, and an external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed in the external resin layer; wherein the contact area further includes a non-seal area between the seal area and the electric storage element as viewed from above, wherein the seal area has a projecting area that penetrates into the non-seal area, and the slit intersects with the boundary between the projecting area and the non-seal area. 1. An electric storage cell having:an electric storage element; anda covering film package that houses the electric storage element and comprises a covering film having an upper portion and a lower portion which have a seal area where the upper and lower portions of the covering film are sealed around a periphery of the electric storage element to accommodate the electric storage element therebetween, said covering film comprising:a metal layer having a first principle face on an electric storage element side and a second principle face on an opposite side of the first principle face,an internal resin layer made of synthetic resin and laminated to the first principle face, wherein the internal resin layers of the upper and lower portions are in contact with each other in a contact area including the seal area around the periphery of the electric storage element, andan external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed at least in the external resin layer,wherein the seal area is formed by the internal resin layers thermally fused to each other, and the ...

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Номер записи: 41
22-02-2018 дата публикации

Sealed type battery

Номер: US20180053924A1
Автор: Keisuke Shimizu, Koki Inoue, Kyosuke Miyata, Masato Fujikawa, Tomohiko Yokoyama
Принадлежит: Sanyo Electric Co Ltd

The battery is sealed by a sealing member including a safety valve for exhausting the gas generated in the battery to the outside of the battery when the pressure in the battery is increased. A part of the sealing member is formed of a member having a melting point lower than that of high-temperature gas generated in the abnormal time and having a ratio of an area of an opening of the battery case to an area of a gas exhaust hole is 3.0×10 −5 or more and 9.1×10 −3 or less.

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Номер записи: 42
23-02-2017 дата публикации

BATTERY MODULE HAVING HOLDER

Номер: US20170054307A1
Автор: KIM Suk-Kyum
Принадлежит:

An exemplary embodiment of the present invention provides a battery module including a plurality of rechargeable batteries, a holder defining a plurality of storage spaces for holding the rechargeable batteries in a stacked configuration, a housing for enclosing the holder, and including a first cover and a second cover that face each other and press the holder, and a protective circuit module in the housing and configured to control charging and discharging operations of the rechargeable batteries. 1. A battery module comprising:a plurality of rechargeable batteries;a holder defining a plurality of storage spaces for holding the rechargeable batteries in a stacked configuration;a housing for enclosing the holder, and comprising a first cover and a second cover that face each other and press the holder; anda protective circuit module in the housing and configured to control charging and discharging operations of the rechargeable batteries.2. The battery module of claim 1 , further comprising a protection wall and a converter claim 1 , a battery region into which the holder is inserted; and', 'a circuit region into which the protective circuit module and the converter are inserted, and, 'wherein the housing defineswherein the battery region and the circuit region are partitioned by the protection wall.3. The battery module of claim 2 , wherein an upper end of the protection wall is separated from a top surface of the second cover.4. The battery module of claim 2 , wherein the holder is cuboid shaped claim 2 , and comprises a plurality of barriers for defining the storage spaces.5. The battery module of claim 4 , further comprising two support bars fixed at a side of the holder claim 4 , and extending in a stacking direction of the rechargeable batteries claim 4 , the support bars respectively defining terminal holes for respectively accommodating terminals of the rechargeable batteries.6. The battery module of claim 5 , further comprising a bus bar for electrically ...

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Номер записи: 43
13-02-2020 дата публикации

Batteries having vents

Номер: US20200052264A1
Автор: Alexander Shelekhin, Brien Merrill, Mark Ashbolt, Oleg Podoprigora, Robert S. Ferrin
Принадлежит: Duracell US Operations Inc

Batteries having vents are disclosed. An example battery includes a housing, including: a first terminal and a second terminal. The first terminal includes a cover. The cover includes at least one line of weakness therein. The line of weakness is structured to form an opening when a threshold pressure is satisfied within the housing to enable gas to vent from the housing through the opening. A filter is positioned within the housing and adjacent the cover. The filter has an aperture structured to enable the gas to vent from the housing and to deter solid material housed within the housing from exiting the opening when the threshold pressure is satisfied.

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Номер записи: 44
13-02-2020 дата публикации

RECTANGULAR SECONDARY BATTERY

Номер: US20200052265A1
Автор: WAKIMOTO Ryoichi, Yamada Hiroyuki
Принадлежит: SANYO ELECTRIC CO., LTD.

To provide a highly reliable rectangular secondary battery. A rectangular secondary battery () includes: an electrode body () that includes a positive electrode plate and a negative electrode plate; a rectangular casing () that includes an opening and that contains the electrode body (); and a sealing plate () that seals the opening of the rectangular casing (). The sealing plate () includes a gas discharge valve () that ruptures when the pressure inside the rectangular casing () has a predetermined value or more to discharge gas inside the rectangular casing () to outside the rectangular casing (). A portion of a second negative electrode current collector () is disposed, as a shielding member, at a location that is between the sealing plate () and the electrode body () and that faces the gas discharge valve (). 1. A rectangular secondary battery comprising:an electrode body that includes a positive electrode plate and a negative electrode plate;a rectangular casing that includes an opening and that contains the electrode body;a sealing plate that includes a gas discharge valve and that seals the opening; anda current collecting member that is electrically connected to the positive electrode plate or the negative electrode plate and that is disposed in the rectangular casing,wherein a shielding member made of metal is disposed at a location that is between the gas discharge valve and the electrode body and that faces the gas discharge valve.2. The rectangular secondary battery according to claim 1 , wherein energy density is 300 Wh/L or more.3. The rectangular secondary battery according to claim 1 , wherein the shielding member is a portion of the current collecting member.4. The rectangular secondary battery according to claim 3 ,wherein the positive electrode plate or the negative electrode plate includes a tab,wherein the current collecting member includes a first region, a second region, and a third region,wherein the tab is connected to the first region, ...

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Номер записи: 45
13-02-2020 дата публикации

LI-ION BATTERY HAVING IMPROVED SAFETY AGAINST COMBUSTION

Номер: US20200052266A1
Автор: BROTHERS PAUL DOUGLAS, English Alan D., Hoover James R., Kountz Dennis J., Visioli Donna Lynn
Принадлежит:

The present invention provides a process for modifying a Li-ion battery having a region of electrochemical activity and an enclosure therefor, said process comprising forming at least one chamber within said enclosure separate from said region of electrochemical activity, positioning combustion abatement agent within said chamber, whereby said combustion abatement agent is not in contact with said region of electrochemical activity, said chamber being pressure or heat sensitive, whereby when said region of electrochemical activity overheats, said chamber is breached, allowing said combustion abatement agent to contact said region of electrochemical activity to abate combustion of said region of electrochemical activity, wherein exemplary of combustion abatement agent is the composition comprising liquid fluoropolyether and exemplary of the of the chamber exhibiting pressure or heat sensitivity is to include a low melting, non-flammable polymer such as polyvinyl alcohol in the material of construction of the chamber. 1. A process for forming a Li-ion battery having a region of electrochemical activity and an enclosure therefor , said process comprising:forming a first chamber within said enclosure separate from said region of electrochemical activity; andpositioning a composition comprising at least one combustion abatement agent within said first chamber, wherein said at least one combustion abatement agent comprises liquid fluoropolyether, whereby said composition is not in contact with said region of electrochemical activity;said first chamber being pressure and/or heat sensitive, whereby when said region of electrochemical activity overheats, said first chamber is breached, allowing said at least one combustion abatement agent to contact said region of electrochemical activity to abate combustion of said region of electrochemical activity.2. The process of further comprising positioning a first membrane between said first chamber and said region of ...

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Номер записи: 46
05-03-2015 дата публикации

PORTABLE ELECTRICAL ENERGY STORAGE DEVICE WITH THERMAL RUNAWAY MITIGATION

Номер: US20150064514A1
Автор: Luke Hok-Sum Horace, Taylor Matthew Whiting, Wu Chia Nung, Wu Yi-Tsung
Принадлежит:

Electrical energy storage device for powering portable devices such as vehicles or consumer electronics includes barriers to minimize migration of thermal energy and propagation of combustion in the rare event that electrical energy storage cells fail, burst and ignite. A burst structure is provided to vent gas from the device in a desired direction in the event pressure within the device exceeds a maximum value. Biased vents permit gases emanating from a portable electrical energy storage cell within an electrical energy storage module to escape and isolate other electrical energy storage cells from the gases. 1. A portable electrical energy storage device , comprising:a first electrical energy storage cell;a second electrical energy storage cell; andan electrical energy storage cell barrier comprising a thermal insulating material and an elastic material, the electrical energy storage cell barrier located between the first electrical energy storage cell and the second electrical energy storage cell.2. The portable electrical energy storage device of claim 1 , wherein the first electrical energy storage cell comprises a plurality of first electrical energy storage cells.3. The portable electrical energy storage device of claim 2 , wherein the second electrical energy storage cell comprises a plurality of second electrical energy storage cells.4. The portable electrical energy storage device of claim 1 , wherein the second electrical energy storage cell is adjacent the first electrical energy storage cell.5. The portable electrical energy storage device of claim 1 , wherein the first electrical energy storage cell comprises nickel-metal hydride chemistry or lithium-ion chemistry and the second electrical energy storage cell comprises a same chemistry as the first electrical energy storage cell.6. The portable electrical energy storage device of claim 1 , wherein the electrical energy storage cell barrier comprises a layer of the thermal insulating material and a ...

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Номер записи: 47
03-03-2016 дата публикации

SEALING FRAME FOR CELLS IN A BATTERY WITH A THERMALLY ACTIVE COMPENSATING ELEMENT

Номер: US20160064707A1
Автор: Kritzer Peter
Принадлежит:

Sealing frame () for utilization in a battery, encompassing a base body () whereby the base body () encompasses an opening (), whereby the base body () features a first sealing surface () and a facing second sealing surface () and whereby the first sealing surface () and/or the second sealing surface () are implemented elastically compressible. During normal operation, the frame provides an optimal operating temperature and a reliable leak tightness, in the event of failure however the frame permits the electrolyte to escape, effortlessly and directed, characterized by cooling passages () that are integrated in the base body () and/or a heating device () which interfuse the base body () at least partially along the lengthwise expansion of the sealing surfaces () 1. A battery comprising:{'b': 1', '2', '2', '3', '2', '4', '5', '4', '5', '22', '23', '2', '2', '4', '5, 'at least two sealing frames () each encompassing a base body () whereby the base body () encompasses an opening (), whereby the base body () features a first sealing surface () and a facing second sealing surface () and whereby the first sealing surface () and/or the second sealing surface () are implemented elastically compressible, characterized by cooling means () and/or heating means () that are integrated in the base body () and which interfuse the base body () at least partially along the lengthwise expansion of the sealing surfaces (, ); and'}{'b': 11', '11', '1', '11', '14', '3', '2', '11', '15', '4', '5, 'at least one cell (), whereby a cell () is positioned between two sealing frames (), whereby the cell () features a thickened section () that extends into the openings of their base body () and whereby the cell () features a tapered section () to which the sealing surfaces (, ) abut in a sealing manner.'}245. The battery according to claim 1 , wherein the sealing surfaces ( claim 1 , ) can receive the tapered section sandwich-like at least in a section between them and can abut to one another ...

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Номер записи: 48
01-03-2018 дата публикации

CAP ASSEMBLY FOR SECONDARY BATTERY

Номер: US20180062122A1
Автор: JUNG Sang Suk, KIM Do Gyun, Kim Jun Tak, LEE Byoung Gu, Lee Byoung Kook, Lee Je Jun, SHIN Hang Soo
Принадлежит: LG CHEM, LTD.

The present invention relates to a cap assembly for a secondary battery mounted on an opening of a can. The cap assembly comprises: a top cap; a safety element disposed on a lower portion of the top cap; a safety vent disposed on a lower portion of the safety element; and a gasket surrounding edges of the top cap, the safety element, and the safety vent and mounted on the opening of the can, wherein an impact absorption part absorbing an impact from the gasket is disposed between an inner wall of the gasket and an outer circumferential surface of the safety vent. 1. A cap assembly for a secondary battery , which is mounted on an opening of a can , the cap assembly comprising:a top cap;a safety element disposed on a lower portion of the top cap;a safety vent disposed on a lower portion of the safety element; anda gasket surrounding edges of the top cap, the safety element, and the safety vent and mounted on the opening of the can,wherein an impact absorption part absorbing an impact from the gasket is disposed between an inner wall of the gasket and an outer circumferential surface of the safety vent.2. The cap assembly of claim 1 , wherein the impact absorption part is an impact absorption space defined between the inner wall of the gasket and the outer circumferential surface of the safety vent.3. The cap assembly of claim 2 , wherein the safety vent has a diameter less than an inner diameter of the gasket so that the impact absorption space is defined.4. The cap assembly of claim 2 , wherein a support part aligning a reference position of the safety vent is disposed in the impact absorption space.5. The cap assembly of claim 4 , wherein at least three or more support parts are disposed at the same interval on the inner wall of the gasket.6. The cap assembly of claim 4 , wherein the support part is integrated with the gasket.7. The cap assembly of claim 4 , wherein the support plate is provided as a vertical plate on the inner wall of the gasket.8. The cap assembly ...

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Номер записи: 49
01-03-2018 дата публикации

ELECTRIC STORAGE CELL, COVERING FILM AND ELECTRIC STORAGE MODULE

Номер: US20180062135A1
Автор: Ishii Shinji, NAGASHIMA Takahiro, Sato Hiromi, Tsuchiya Takayuki, YOKOSHIMA Katsunori
Принадлежит:

An electric storage cell has an electric storage element and a covering film package. The covering film package houses the electric storage element and includes: a metal layer having a first principle face on the electric storage element side and a second principle face on the opposite side of the first principle face, an internal resin layer laminated to the first principle face, and an external resin layer laminated to the second principle face, with a slit formed in the external resin layer; wherein the contact area further includes a non-seal area between the seal area and the electric storage element as viewed from above, wherein the seal area has a projecting area that penetrates into the non-seal area, and the slit is provided between the projecting area and the electric storage element as viewed from above. 1. An electric storage cell having:an electric storage element; anda covering film package that houses the electric storage element and comprises a covering film having an upper portion and a lower portion which have a seal area where the upper and lower portions of the covering film are sealed around a periphery of the electric storage element to accommodate the electric storage element therebetween, said covering film comprising:a metal layer having a first principle face on an electric storage element side and a second principle face on an opposite side of the first principle face,an internal resin layer made of synthetic resin and laminated to the first principle face, wherein the internal resin layers of the upper and lower portions are in contact with each other in a contact area including the seal area around the periphery of the electric storage element, andan external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed at least in the external resin layer,wherein the seal area is formed by the internal resin layers thermally fused to each other, and the contact area further includes a non-seal area ...

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Номер записи: 50
22-05-2014 дата публикации

PRISMATIC STORAGE BATTERY

Номер: US20140141293A1
Автор: Iwasa Masaaki, Tsunaki Takuro, Urano Kazuaki
Принадлежит: Hitachi Vehicle Energy, Ltd.

A safety valve is integrally formed in a battery lid together with a peripheral wall portion by press and the like. The safety valve is formed in contact with the peripheral wall portion, at the bottom portion of the depressed portion depressed from the upper surface of the base portion of the battery lid. The upper surface of the safety valve is located below the lower surface of the base portion. When pressing force parallel to the upper surface of the battery lid is exerted on the inner peripheral surface of the peripheral wall portion while the connection tube and the like is connected, the pressing force can be supported by the entire thickness (plate thickness) of the base portion. 110-. (canceled)11. A prismatic storage battery comprising:an electric power generation element formed by laminating a positive electrode and a negative electrode with a separator interposed therebetween; anda battery container in which the electric power generation element is accommodated and in which an electrolyte is injected, wherein the battery container is formed as a sealed structure with a battery case and a lid member,the lid member is integrally formed with a base portion having a predetermined thickness having an upper surface and a lower surface, a peripheral wall portion forming a depressed portion depressed from the upper surface of the base portion, and a safety valve having a peripheral edge portion provided in contact with a bottom portion of the peripheral wall portion, wherein the bottom portion of the peripheral wall portion is protruding to an inner side of the battery container with respect to the lower surface of the base portion.12. The prismatic storage battery according to claim 11 , wherein the safety valve is formed substantially flatly claim 11 , and the entire upper surface is located below the lower surface of the base portion.13. The prismatic storage battery according to claim 11 , wherein the safety valve has a bent portion protruding in a dome ...

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Номер записи: 51
22-05-2014 дата публикации

OUTER PACKAGING MATERIAL FOR BATTERY, AND BATTERY

Номер: US20140141299A1
Автор: YOSHINO Kenji
Принадлежит: SHOWA DENKO PACKAGING CO., LTD.

An outer packaging material for a battery includes a heat resistant stretched resin film layer as an outer layer integrally laminated on one of surfaces of an aluminum foil layer via a first adhesive layer. A thermoplastic unstretched resin film layer as an inner layer is integrally laminated on the other surface of the aluminum foil layer via a second adhesive layer. An adhesive strength between the inner layer and the aluminum foil layer is 4 N/15 mm-width to 30 N/15 mm-width, and an adhesive strength between the outer layer and the aluminum foil layer is 2 N/15 mm-width to 14 N/15 mm-width. As a thermoplastic unstretched resin film constituting the inner layer, a thermoplastic unstretched resin film having a sealing strength of two sheets of the thermoplastic unstretched resin films arranged one on the other and heat sealed exceeding 30 N/15 mm-width but not exceeding 110 N/15 mm-width is used. 1. An outer packaging material for a battery , comprising:an aluminum foil layer;a heat resistant stretched resin film layer as an outer layer integrally laminated on one surface of the aluminum foil layer via a first adhesive layer; anda thermoplastic unstretched resin film layer as an inner layer integrally laminated on the other surface of the aluminum foil layer via a second adhesive layer,wherein an adhesive strength between the inner layer and the aluminum foil layer is 4 N/15 mm-width to 30 N/15 mm-width,wherein an adhesive strength between the outer layer and the aluminum foil layer is 2 N/15 mm-width to 14 N/15 mm-width, andwherein, as a thermoplastic unstretched resin film constituting the inner layer, a thermoplastic unstretched resin film having a sealing strength of two sheets of the thermoplastic unstretched resin films arranged one on the other and heat sealed exceeding 30 N/15 mm-width but not exceeding 110 N/15 mm-width is used.2. The outer packaging material for a battery as recited in claim 1 , wherein the second adhesive layer is a layer formed by a dry ...

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Номер записи: 52
02-03-2017 дата публикации

GASKET AND DIAPHRAGM FOR ELECTROCHEMICAL CELL

Номер: US20170062778A1
Автор: Masumoto Kenjin, MILLE Christophe, Tsuruta Kunio
Принадлежит: TESLA MOTORS, INC.

An electrochemical cell includes a can configured to serve as one electric contact of the electrochemical cell, the can containing active materials, a diaphragm configured to serve as an opposite electric contact of the electrochemical cell, and a gasket that is initially of generally cylindrical shape, the diaphragm positioned inside the gasket in an opening of the can wherein an outer edge of the can is crimped onto the gasket, the gasket having an inner periphery inside the can and an outer periphery outside the can, the outer periphery comprising leaves that after crimping extend along an outer surface of the diaphragm. 1. An electrochemical cell comprising:a can configured to serve as one electric contact of the electrochemical cell, the can containing active materials;a diaphragm configured to serve as an opposite electric contact of the electrochemical cell; anda gasket that is initially of generally cylindrical shape, the diaphragm positioned inside the gasket in an opening of the can wherein an outer edge of the can is crimped onto the gasket, the gasket having an inner periphery inside the can and an outer periphery outside the can, the outer periphery comprising leaves that after crimping extend along an outer surface of the diaphragm.2. The electrochemical cell of claim 1 , wherein after the crimping the leaves lie essentially flat against the outer surface of the diaphragm.3. The electrochemical cell of claim 1 , wherein the leaves are equidistantly spaced along the outer periphery.4. The electrochemical cell of claim 1 , wherein the leaves are shaped so that after the crimping claim 1 , adjacent leaves are separated by a slot formed by substantially parallel edges.5. The electrochemical cell of claim 1 , wherein side edges of the leaves are each slanted inward toward a top edge of the leaves.6. The electrochemical cell of claim 1 , wherein before the crimping a top edge of each leaf is essentially parallel to the inner periphery.7. The electrochemical ...

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Номер записи: 53
28-02-2019 дата публикации

CAP ASSEMBLY FOR A SECONDARY BATTERY AND SECONDARY BATTERY

Номер: US20190067651A1
Автор: LI Quankun, WANG Peng, ZHU Taosheng
Принадлежит: Contemporary Amperex Technology Co., Limited

The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly includes a cap plate, an electrode terminal, a fixing member, a sealing member and a connecting member, wherein: the cap plate has an electrode lead-out hole; the fixing member is fixed to the cap plate through the connecting member; the electrode terminal includes a terminal board, wherein an outer peripheral surface of the terminal board is surrounded at least in part by the fixing member to fix the electrode terminal to the fixing member, the terminal board is located at a side of the cap plate and covers the electrode lead-out hole, and the outer peripheral surface of the terminal board protrudes out of an inner wall of the electrode lead-out hole; and the sealing member is disposed between the terminal board and the cap plate to seal the electrode lead-out hole. 1. A cap assembly for a secondary battery , comprising a cap plate , an electrode terminal , a fixing member , a sealing member and a connecting member , wherein:the cap plate has an electrode lead-out hole;the fixing member is fixed to the cap plate through the connecting member;the electrode terminal comprises a terminal board, wherein an outer peripheral surface of the terminal board is surrounded at least in part by the fixing member to fix the electrode terminal to the fixing member, the terminal board is located at a side of the cap plate and covers the electrode lead-out hole, and the outer peripheral surface of the terminal board protrudes out of an inner wall of the electrode lead-out hole; andthe sealing member is disposed between the terminal board and the cap plate to seal the electrode lead-out hole.2. The cap assembly of claim 1 , wherein the fixing member is a hard plastic member claim 1 , and a part of the fixing member is located between the cap plate and the terminal board.3. The cap assembly of claim 1 , wherein the cap plate and/or the terminal board is provided with an ...

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Номер записи: 54
28-02-2019 дата публикации

POWER STORAGE MODULE

Номер: US20190067658A1
Автор: Fujiwara Nobuyoshi, MORIOKA Satoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A power storage module includes: a plurality of power storage elements; a power storage case accommodating the plurality of power storage elements; and a gas generator disposed in the power storage case, the plurality of power storage elements each having an exhausting portion, the power storage case having an exhaust channel formed therein to pass an exhaust gas exhausted from the exhausting portion, the gas generator being disposed in the exhaust channel, the gas generator supplying a supply gas into the exhaust channel when the gas generator attains an internal temperature equal to or higher than a predetermined temperature. 1. A power storage module comprising:a plurality of power storage elements;a power storage case accommodating the plurality of power storage elements; anda gas generator disposed in the power storage case,the plurality of power storage elements each having an exhausting portion,the power storage case having an exhaust channel formed therein to pass an exhaust gas exhausted from the exhausting portion,the gas generator being disposed in the exhaust channel, the gas generator supplying a supply gas into the exhaust channel when the gas generator attains an internal temperature equal to or higher than a predetermined temperature.2. The power storage module according to claim 1 , whereinthe gas generator includes a gas agent that serves as the supply gas as the gas agent evaporates, and a reservoir case that reserves the gas agent,the reservoir case includes a thick film portion disposed upstream of the gas agent in a direction in which the exhaust gas flows, and a thin film portion having a thickness smaller than the thick film portion,the thick film portion includes a facing surface to which the exhaust gas is blown, and a back surface facing away from the facing surface, andthe thin film portion is located downstream of the thick film portion in the direction in which the exhaust gas flows, and is also located on a side of the back surface.3. ...

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Номер записи: 55
11-03-2021 дата публикации

POWER BATTERY AND BATTERY MODULE

Номер: US20210074961A1
Автор: GUO Zhijun, WANG Peng, Zhou Yong
Принадлежит: Contemporary Amperex Technology Co., Limited

The disclosure relates to a power battery and a battery module. The power battery includes: a case including two openings opposite to each other; an electrode assembly formed by winding a positive electrode sheet, a negative electrode sheet, and a separator disposed around a winding axis, the electrode assembly being disposed in the case, and two opposite ends of the electrode assembly along the winding axis being respectively disposed corresponding to the two openings; a first cap assembly covering one of the two openings, the first cap assembly including a liquid injection hole communicating with an interior of the case; a second cap assembly covering the other opening, the second cap assembly including a through hole communicating with the interior of the case; in a length direction, the liquid injection hole and the through hole are located on a same side of a central axis of the case. 1. A power battery , wherein the power battery comprises:a case comprising two openings opposite to each other;an electrode assembly which is formed by winding a positive electrode sheet, a negative electrode sheet, and a separator disposed between the positive electrode sheet and the negative electrode sheet around a winding axis, wherein the electrode assembly is disposed in the case, and two opposite ends of the electrode assembly along the winding axis are respectively disposed corresponding to the two openings;a first cap assembly covering one of the two openings, wherein the first cap assembly comprises a liquid injection hole communicating with an interior of the case;a second cap assembly covering the other of the two openings, wherein the second cap assembly comprises a through hole communicating with the interior of the case;in a length direction, the liquid injection hole and the through hole are located on a same side of a central axis of the case.2. The power battery according to claim 1 , wherein a projection of the liquid injection hole in a height direction at ...

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Номер записи: 56
11-03-2021 дата публикации

CYLINDRICAL LITHIUM ION SECONDARY BATTERY

Номер: US20210074978A1
Автор: CHUN Byoung Min
Принадлежит:

An embodiment of the present invention relates to a cylindrical lithium ion secondary battery. The technical problem to be solved is to provide a cylindrical lithium ion secondary battery which is designed such that a safety vent is formed and at the same time or afterwards excess metal can be guided to a curved portion adjacent to the safety vent, thereby enhancing the flatness of a can floor and reducing damage to the safety vent. To this end, the present invention provides a cylindrical lithium ion secondary battery comprising: a cylindrical can; an electrode assembly accommodated in the cylindrical can; and a cap assembly for sealing the cylindrical can, wherein the cylindrical can comprises a circular floor portion, a curved portion curved from the floor portion towards the electrode assembly, and a safety vent formed on the curved portion. 1. A cylindrical lithium ion secondary battery comprising:a cylindrical can;an electrode assembly accommodated in the cylindrical can; anda cap assembly for sealing the cylindrical can,wherein the cylindrical can comprises a circular floor portion, a curved portion curved from the floor portion towards the electrode assembly, and a safety vent formed on the curved portion.2. The cylindrical lithium ion secondary battery of claim 1 , wherein the curved portion and the safety vent have a circular ring shape.3. The cylindrical lithium ion secondary battery of claim 1 , wherein the curved portion includes a pair of curve portions curved from the floor portion toward the electrode assembly and a flat portion connecting the pair of curve portions claim 1 , and the safety vent includes a pair of slope portions sloping from the flat portion toward the electrode assembly and a planar portion connecting the pair of slope portions.4. The cylindrical lithium ion secondary battery of claim 1 , wherein the curved portion has a depth ranging from 0.1 mm to 0.15 mm claim 1 , and the safety vent has a thickness ranging from 0.05 mm to 0.2 mm ...

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Номер записи: 57
11-03-2021 дата публикации

ENERGY STORAGE MODULE

Номер: US20210074979A1
Автор: CHOI Woo Sung, KIM Jang Hoon, KIM Jin Taek, KWAK Eun Ok, LEE Kwang Deuk, WOO Jong Yeol, YUN Jin Bhum
Принадлежит:

An energy storage module includes: a cover member accommodating a plurality of battery cells in an internal receiving space, the battery cells being arranged in a first direction, each of the battery cells including a vent; a top plate coupled to a top of the cover member and including a duct corresponding to the vent of each of the battery cells; a top cover coupled to a top of the top plate and having a discharge opening corresponding to the duct; and an extinguisher sheet between the top cover and the top plate, the extinguisher sheet being configured to emit a fire extinguishing agent at a reference temperature. 1. An energy storage module comprising:a cover member accommodating a plurality of battery cells in an internal receiving space, the battery cells being arranged in a first direction, each of the battery cells comprising a vent;a top plate coupled to a top of the cover member and comprising a duct corresponding to the vent of each of the battery cells;a top cover coupled to a top of the top plate and having a discharge opening corresponding to the duct; andan extinguisher sheet between the top cover and the top plate, the extinguisher sheet being configured to emit a fire extinguishing agent at a reference temperature.2. The energy storage module of claim 1 , wherein the extinguisher sheet has an opening corresponding to the duct.3. The energy storage module of claim 2 , wherein the extinguisher sheet extends in the first direction.4. The energy storage module of claim 1 , further comprising a plurality of insulation spacers respectively between adjacent ones of the battery cells.5. The energy storage module of claim 4 , wherein the top plate has openings respectively corresponding to the insulation spacers.6. The energy storage module of claim 5 , wherein the extinguisher sheet is over the openings in top plate and over the insulation spacers.7. The energy storage module of claim 1 , wherein the extinguisher sheet has a receiving space with an outer ...

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Номер записи: 58
19-03-2015 дата публикации

ELECTRONIC DEVICE

Номер: US20150077912A1
Автор: ISHIBASHI Jumpei
Принадлежит: CASIO COMPUTER CO., LTD.

An electronic device includes a case body which includes an opening and a battery holder holding a battery, an inward flange which is disposed at least a part of a circumference of the opening, a display panel which is mounted on the inward flange so as to cover the opening of the case body, and an adhesive layer which is provided between the display panel and the inward flange. The adhesive layer gradually peels off to leak gas in a space sealed by the case body and the display panel, so as to prevent the display panel from swiftly popping out of the opening when an inner pressure of the space increases. 1. An electronic device , comprising:a case body which includes an opening and a battery holder holding a battery;an inward flange which is disposed at least a part of a circumference of the opening;a display panel which is mounted on the inward flange so as to cover the opening of the case body; andan adhesive layer which is provided between the display panel and the inward flange,wherein the adhesive layer gradually peels off to leak gas in a space sealed by the case body and the display panel, so as to prevent the display panel from swiftly popping out of the opening when an inner pressure of the space increases.2. The electronic device according to claim 1 ,wherein the adhesive layer is provided in at least a part of an area between the inward flange and the display panel, andwherein at least a part of the adhesive layer has an adhesion force lower than the other part of the adhesive layer.3. The electronic device according to claim 1 ,wherein the adhesive layer is provided over an entire area between the inward flange and the display panel, andwherein at least a part of the adhesive layer has an adhesion force lower than the other part of the adhesive layer.4. The electronic device according to claim 1 ,wherein the adhesive layer is provided in at least a part of an area between the inward flange and the display panel, andwherein the adhesive layer has a ...

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Номер записи: 59
05-06-2014 дата публикации

METHODS AND DEVICES FOR DETECTING VENTING OF A BATTERY CELL

Номер: US20140154536A1
Автор: COUPAR Thomas J., GILBERT Allen Joseph
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A vehicle may include an electric machine, a battery adapted to provide power to the electric machine, and various embodiments of a gauge adapted to indicate venting of the battery. In one embodiment, the gauge is adapted to permanently deform or burst in response to venting of the battery to indicate venting of the battery. In another embodiment, the gauge includes an element adapted to change position in response to venting of the battery to indicate venting of the battery. In other embodiments, the gauge includes either a universal paper indicator or a chemically coated cartridge indicator in communication with the battery and adapted to change in color to indicate venting of the battery. 1. A vehicle comprising:an electric machine;a battery configured to provide power to the electric machine; anda gauge configured to change its physical appearance in response to venting of the battery to indicate venting of the battery.2. The vehicle of claim 1 , wherein the gauge is configured to deform or burst in response to the venting of the battery to indicate venting of the battery.3. The vehicle of claim 1 , wherein the gauge is configured to change its color in response to the venting of the battery to indicate venting of the battery.4. The vehicle of claim 1 , wherein the gauge is configured to change its physical location in response to venting of the battery to indicate venting of the battery.5. The vehicle of claim 1 , wherein the gauge comprises a collar and a plunger moveably connected to the collar and wherein the plunger is configured to move away from the collar in response to venting of the battery to indicate venting of the battery.6. The vehicle of claim 1 , wherein the gauge comprises a universal paper indicator.7. The vehicle of claim 1 , wherein the battery includes a cell configured to discharge hydrogen when venting and wherein the gauge comprises a gas permeable matrix coated with chemochromic pigment configured to change color in the presence of ...

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Номер записи: 60
07-03-2019 дата публикации

SECONDARY BATTERY

Номер: US20190074487A1
Автор: CHI Qingkui, DENG Pinghua, GUO Jian, LI Quankun, WANG Peng, Zhu Lingbo
Принадлежит:

The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is beneath the electrode-tab pad-plate, the welding part is above is the electrode tab pad plate, and the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab. 1. A secondary battery , comprising: a top cover , a first electrode terminal , a second electrode terminal , an electrode tab pad plate , an electrode assembly , a first electrode tab and a second electrode tab; the first electrode terminal and the second electrode terminal are both arranged at the top cover;the electrode tab pad plate is located between the top cover and the electrode assembly;the first electrode tab comprises a connecting part, a folding part and a welding part, the connecting part is beneath the electrode tab pad plate, the welding part is above the electrode tab pad plate, the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected between the connecting part and the welding part and bypasses the electrode tab pad plate;the second electrode terminal is connected with the electrode assembly through the second electrode tab;the secondary battery further comprises an insulating layer;the ...

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Номер записи: 61
07-03-2019 дата публикации

SEALED BATTERY AND MANUFACTURING METHOD OF SEALED BATTERY

Номер: US20190074502A1
Автор: NEMOTO Yuta, Ono Tomohiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A sealed battery includes a battery outer case, a collector terminal, an outwardly exposed terminal, and a current shut-off mechanism configured to cut off a conductive path from the collector terminal to the outwardly exposed terminal when the internal pressure of the battery outer case exceeds a predetermined pressure. The current shut-off mechanism includes a connection plate with a vent hole, and a shut-off valve including a reversing portion. A joint region in the connection plate is in contact with a surface, of the reversing portion, that faces the inner side of the battery outer case. A thermal-spray joint portion configured to cover a border between the joint region and the reversing portion is provided, such that the shut-off valve is joined to the connection plate via the thermal-spray joint portion. 1. A sealed battery comprising:a battery outer case in which an electrode body is accommodated;a collector terminal electrically connected to the electrode body inside the battery outer case;an outwardly exposed terminal electrically connected to the collector terminal inside the battery outer case and partially exposed outside the battery outer case; anda current shut-off mechanism placed on a conductive path from the collector terminal to the outwardly exposed terminal and configured to cut off the conductive path when an internal pressure of the battery outer case exceeds a predetermined pressure, wherein:the current shut-off mechanism includes a connection plate as a plate-shaped conductive member provided in one end of the collector terminal, the connection plate with a vent hole provided in a central part of the connection plate, and a shut-off valve including a reversing portion electrically connected to the outwardly exposed terminal;a joint region is in a peripheral portion in the connection plate, the peripheral portion defining the vent hole of the connection plate;the joint region is in contact with a surface of the reversing portion, the surface ...

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Номер записи: 62
17-03-2016 дата публикации

HINGED VENT FOR ELECTROCHEMICAL CELL SYSTEM AND METHOD

Номер: US20160079578A1
Автор: Tyler Matthew R.
Принадлежит:

The present disclosure includes an electrochemical cell having a housing configured to house one or more electrodes of the electrochemical cell. The housing includes a wall having an inner surface facing the one or more electrodes. The electrochemical cell also includes a hinged vent stamped on the inner surface of the housing, where the hinged vent includes a fracture portion, a hinge portion on either side of the fracture portion extending substantially parallel to the fracture portion, and connecting portions extending between the fracture portion and the hinge portions. The fracture portion includes a first cross-sectional width through the wall of the housing and the hinge portion includes a second-cross sectional width through the wall of the housing greater than the first cross-sectional width. 1. An electrochemical cell , comprising:a housing configured to house one or more electrodes of the electrochemical cell, wherein the housing comprises a wall having an inner surface facing the one or more electrodes; anda hinged vent stamped on the inner surface of the wall, wherein the hinged vent comprises a fracture portion, a hinge portion on either side of the fracture portion extending substantially parallel to the fracture portion, and connecting portions extending between the fracture portion and the hinge portions, wherein the fracture portion comprises a first cross-sectional width through the wall of the housing and the hinge portion comprises a second-cross sectional width through the wall of the housing greater than the first cross-sectional width.2. The electrochemical cell of claim 1 , wherein the fracture portion is a first length claim 1 , the hinge portions are a second length claim 1 , the first length is substantially equal to the second length claim 1 , and the connecting portions extend between the fracture portion and the hinge portions at a substantially right angle from the fracture portion.3. The electrochemical cell of claim 1 , wherein the ...

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Номер записи: 63
17-03-2016 дата публикации

Case assembly, prismatic secondary battery, and fabrication method thereof

Номер: US20160079579A1
Автор: Kangkook JUNG
Принадлежит: Samsung SDI Co Ltd

Provided are a case assembly, a prismatic secondary battery, and a method of fabricating the prismatic secondary battery. The prismatic secondary battery includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates; a case formed of a first material, wherein an electrode assembly accommodation cavity is formed in the case to accommodate the electrode assembly, and an opening through which the electrode assembly is to be inserted is formed in a portion of the case is formed in a portion of the case; and a cap plate sealing the opening. A gas discharge hole is formed in the case to discharge gas generated during a pre-charging operation. The gas discharge hole is sealed with a gas seal formed of a second material.

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Номер записи: 64
18-03-2021 дата публикации

Secondary Battery

Номер: US20210083236A1
Автор: JUNG Sang Suk, KIM Chan Bae, KIM Do Gyun, LEE Byoung Gu, Lee Byoung Kook
Принадлежит: LG CHEM, LTD.

A cylindrical secondary battery may have an insulation layer formed in a region in which the top cap and the first gasket are coupled to each other. The insulation layer may include a ceramic material and a binder. The secondary battery is designed so that, when an external electrical conductive object is electrically connected directly to a positive electrode and a negative electrode of the secondary battery, an electrode tab of the secondary battery is broken as quickly as possible. 1. A secondary battery comprising:a battery can accommodating an electrode assembly and having an open upper portion;a top cap positioned in the upper portion of the battery can;a safety vent positioned below the top cap;a current interrupt device (CID) filter positioned below the safety vent;a first gasket provided on positioned along an inner surface of the upper portion of the battery can and adjoining the top cap in a region, the first gasket adjoining a side portion of the safety vent to insulate the safety vent from the upper portion of the battery can; anda second gasket positioned between the safety vent and the CID filter, the second gasket adjoining an upper portion of the CID filter and surrounding an outer end of the CID filter, and the second gasket adjoining a lower portion of the safety vent,wherein an insulation layer is positioned in the region in which the top cap and the first gasket are adjoining each other, andthe insulation layer comprises a ceramic material and a binder.2. The secondary battery of claim 1 , wherein the binder comprises an organic binder.3. The secondary battery of claim 1 , wherein the ceramic material comprises aluminum oxide or silicon oxide.4. The secondary battery of claim 1 , wherein the binder represents 20 wt % to 90 wt % of a total weight of the insulation layer.5. The secondary battery of claim 1 , wherein a ratio of a thickness of the insulation layer to a thickness of the top cap ranges of 0.015 to 0.15.6. The secondary battery of ...

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Номер записи: 65
26-03-2015 дата публикации

RECHARGEABLE BATTERY AND MODULE THEREOF

Номер: US20150086816A1
Автор: Kim Sung-Kab, Kim Yong-Sam, Park Se-jong
Принадлежит: Samsung SDI Co., Ltd.

A rechargeable battery includes an electrode assembly that performs charging and discharging operations, a case that accommodates the electrode assembly therein, a cap plate coupled to the case, an electrode terminal connected to the electrode assembly and mounted in a terminal hole of the cap plate, and an insulation member that coats the case. The insulation member has a protruding portion that protrudes from an external circumference of the cap plate along a surface of the cap plate. The protruding portion has an exhaust groove on at least one side thereof. 1. A rechargeable battery , comprising:an electrode assembly that performs charging and discharging operations;a case that accommodates the electrode assembly therein;a cap plate coupled to the case;an electrode terminal connected to the electrode assembly and mounted in a terminal hole of the cap plate; andan insulation member that coats the case,wherein the insulation member has a protruding portion that protrudes from an external circumference of the cap plate along a surface of the cap plate, andthe protruding portion has an exhaust groove on at least one side thereof.2. The rechargeable battery as claimed in claim 1 , wherein the exhaust groove has a concave form in the protruding portion to correspond to the surface of the cap plate.3. The rechargeable battery as claimed in claim 1 , wherein the exhaust groove includes two exhaust grooves that are respectively located at two diagonally opposite ones of four corners of the cap plate.4. The rechargeable battery as claimed in claim 1 , wherein the exhaust groove includes four exhaust grooves that are respectively located at four corners of the cap plate.5. The rechargeable battery as claimed in claim 1 , wherein the insulation member is in a form of a single sheet attached to the case claim 1 , end portions of the single sheet overlapping each other at a corner of the cap plate.6. The rechargeable battery as claimed in claim 1 , wherein:end portions of the ...

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Номер записи: 66
26-03-2015 дата публикации

Battery pack capable of discharging gases in pouch type battery cell

Номер: US20150086817A1
Автор: Geun Chang Chung, Seung Hyun Chung
Принадлежит: LG Chem Ltd

The present invention relates to a battery pack capable of discharging gases in a pouch type battery cell when a gas pressure inside the pouch type battery cell is increased over a reference pressure, the battery pack including: a plurality of pouch type battery cells; a case comprising partitions suppressing the pouch type battery cells from expanding in a thickness direction thereof, wherein the pouch type battery cells are respectively held in spaces defined by the partitions; and a punching unit installed on the case to pierce a portion of surfaces of the pouch type battery cells , which is not supported by the partition, and having pin members of which number is equal to that of the pouch type battery cells.

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Номер записи: 67
02-04-2015 дата публикации

BATTERY MODULE HAVING VENTING GUIDING PORTION

Номер: US20150093608A1
Автор: EOM Youngsop, KANG Dal Mo, SEONG Jun Yeob
Принадлежит: LG CHEM, LTD.

A battery cell is provided. The battery cell includes a battery case, an electrode assembly located in the battery case, the electrode assembly comprising a cathode, an anode, and a separator disposed between the cathode and the anode, an electrolyte present in the battery case, the battery case being sealed at a perimeter thereof, and a frame coupled to the perimeter of the battery case, the frame having a venting guiding portion at the perimeter of the battery case, such that sealing of the battery case is released through the venting guiding portion when internal pressure of the battery cell increases, the venting guiding portion comprising a reduction in the amount of material of the frame in a predetermined location at the perimeter of the battery case. A battery cell module is also provided. 1. A battery cell , comprising:a battery case,an electrode assembly located in the battery case, said electrode assembly comprising a cathode, an anode, and a separator disposed between the cathode and the anode,an electrolyte present in the battery case,the battery case being sealed at a perimeter thereof,a frame coupled to the perimeter of the battery case, the frame having a venting guiding portion at the perimeter of the battery case, such that sealing of the battery case is released through the venting guiding portion when internal pressure of the battery cell increases, the venting guiding portion comprising a reduction in the amount of material of the frame in a predetermined location at the perimeter of the battery case.2. The battery cell according to claim 1 , wherein the venting guiding portion is provided by a reduced height of the frame in a thickness direction of the frame at the predetermined location relative to heights of adjacent portions of the frame.3. The battery cell according to claim 1 , wherein the venting guiding portion is provided by a reduced width of the frame relative to widths of adjacent portions of the frame.4. The battery cell according ...

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Номер записи: 68
31-03-2016 дата публикации

BATTERY MODULE VENT SYSTEM AND METHOD

Номер: US20160093857A1
Автор: DeKeuster Richard M., Mack Robert J.
Принадлежит:

A battery module includes a housing having an interior defined by multiple sides, one side of which is a lid. The battery module also includes lithium ion electrochemical cells disposed in the housing, each cell having a vent through which gases may be vented. Moreover, the battery module includes a first chamber defined by interior aspects of the housing. Furthermore, the first chamber receives vented gases directed in a first direction from the electrochemical cells. In addition, the battery module includes a surface of the first chamber. The surface is configured to direct the vented gases in a second direction. The battery module also includes a second chamber defined partially by the lid. The second chamber receives the vented gases from the first chamber and directs the vented gases from the housing. 1. A battery module comprising:a housing having an interior defined by multiple sides, one side of which is a lid;lithium ion electrochemical cells disposed in the housing, each cell having a vent through which gases may be vented;a first chamber defined by interior aspects of the housing, wherein the first chamber receives vented gases directed in a first direction from the electrochemical cells;a surface of the first chamber, wherein the surface is configured to direct the vented gases in a second direction; anda second chamber defined partially by the lid, wherein the second chamber receives the vented gases from the first chamber and directs the vented gases from the housing.2. The battery module of wherein the lid has a baffle that extends toward second chamber toward the interior of the housing.3. The battery module of wherein the surface comprises a plate disposed within the first chamber.4. The battery module of wherein the surface comprises a wall defining a portion of the interior aspects of the first chamber.5. The battery module of wherein the first chamber is partially formed by one of the sides of the housing of the battery module and a panel coupled ...

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Номер записи: 69
07-04-2016 дата публикации

TOP CAP ASSEMBLY FOR SECONDARY BATTERY

Номер: US20160099443A1
Автор: JUNG Sang Sok, Lee Je Jun, SHIN Hang Soo
Принадлежит: LG CHEM, LTD.

Provided is a top cap assembly for a cylindrical type secondary battery, including a CID short-circuiting member, which interrupts an electric current when a high voltage is generated in the cylindrical type secondary battery, a safety vent connected to an upper part of the CID short-circuiting member and including a plurality of notches, which are broken when a voltage equal to or greater than an allowable voltage of the CID short-circuiting member is generated, to discharge gas from the cylindrical type secondary battery, a top cap connected to the safety vent and disposed on the uppermost end of an upper opening part of the cylindrical type secondary battery, a gasket surrounding and sealing an outer circumferential surface of the CID short-circuiting member, and a heat resistant member preventing heat transfer between the gasket and the safety vent. 1. A top cap assembly for a cylindrical type secondary battery , which finishes an upper end of an opening part of the cylindrical type secondary battery , the top cap assembly comprising:a CID (current interrupt device) short-circuiting member, which interrupts an electric current when a high voltage is generated in the cylindrical type secondary battery;a safety vent connected to an upper part of the CID short-circuiting member and comprising a plurality of notches, which are broken when a voltage equal to or greater than an allowable voltage of the CID short-circuiting member is generated, to discharge gas from the cylindrical type secondary battery;a top cap connected to the safety vent and disposed on the uppermost end of an upper opening part of the cylindrical type secondary battery;a gasket surrounding and sealing an outer circumferential surface of the CID short-circuiting member; anda heat resistant member preventing heat transfer between the gasket and the safety vent.2. The top cap assembly of claim 1 , wherein the heat resistant member is formed of one of a poly tetra fluoro ethylene-based material and a ...

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Номер записи: 70
19-03-2020 дата публикации

Secondary Battery

Номер: US20200091482A1
Автор: JUNG Sang Suk, KIM Chan Bae, KIM Do Gyun, Min Geon Woo, SHIN Hang Soo
Принадлежит: LG CHEM, LTD.

The disclosed secondary battery is capable of preventing a short-circuit pressure at which the safety vent is ruptured from being reduced due to deformation of the safety vent during assembly of the battery. The secondary battery of the present invention includes a can member accommodating an electrode assembly and a top cap assembly covering an opening of the can member. A safety vent is provided in the top cap assembly to discharge a gas when an inner pressure of the can member increases, wherein the safety vent includes a main body and a bending unit, in which an outer edge of the main body is bent, and wherein a buffering space is defined between the bending unit and the main body. 1. A secondary battery comprising:a can member accommodating an electrode assembly;a top cap assembly covering an opening of the can member; anda safety vent provided in the top cap assembly to discharge a gas when an inner pressure of the can member increases, a main body; and', 'a bending unit in which an outer edge of the main body is bent,, 'wherein the safety vent compriseswherein a buffering space is defined between the bending unit and the main body.2. The secondary battery of claim 1 , wherein the bending unit comprises:a standing part bent to stand up extend upwardly from the outer edge of the main body;a support part bent from an end of the standing part toward the an inside of the main body; anda contact part bent from an end of the support part along a surface of the main body to contact the main body.3. The secondary battery of claim 1 , wherein the support part comprises:an upper portion bent from an end of the standing part in a direction parallel to a top surface of the main body; anda bridge portion connecting an end of the upper portion to the contact part.4. The secondary battery of claim 2 , wherein the support part is provided as an inclined surface.5. The secondary battery of claim 2 , wherein the buffering space encircled by the main body claim 2 , the standing ...

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Номер записи: 71
19-03-2020 дата публикации

ALUMINUM ALLOY SHEET FOR BATTERY LIDS FOR MOLDING INTEGRATED EXPLOSION-PREVENTION VALVE, AND METHOD FOR PRODUCING SAME

Номер: US20200091483A1
Автор: ANAMI Toshiya, KANAMORI Keiji, SHIMOSAKA Daisuke, TAMAKI Yuuichi
Принадлежит: NIPPON LIGHT METAL COMPANY, LTD.

Aluminum alloy sheet for battery lid use excellent in heat radiation ability, deformation resistance, and formability, which aluminum alloy sheet for battery lid use enabling formation of an integrated explosion-proof valve with little variation in operating pressure and excellent in cyclic fatigue resistance, and a method of production of the same are provided, the aluminum alloy sheet for battery lid use for forming an integrated explosion-proof valve having a component composition containing Fe: 1.05 to 1.50 mass %, Mn: 0.30 to 0.70 mass %, Ti: 0.002 to 0.15 mass %, and B: less than 0.04 mass %, having a balance of Al and impurities, having an Fe/Mn ratio restricted to 1.8 to 3.5, restricting, as impurities, Si to less than 0.20 mass %, Cu to less than 0.03 mass %, Mg to less than 0.05 mass %, and V to less than 0.03 mass %, having a conductivity of 53.0% IACS or more, having a 0.2% yield strength of 40 MPa or more, having a value of elongation of 40% or more, having a recrystallized structure, and having both a value of elongation after cold rolling by a rolling reduction of 80% and a value of elongation after cold rolling by a rolling reduction of 90% of 5.0% or more. Furthermore, an average grain size of the recrystallized grains of the recrystallized structure is preferably 15 to 30 μm. 1. Aluminum alloy sheet for battery lid use for forming an integrated circular explosion-proof valve having a component composition containing Fe: 1.05 to 1.50 mass % , Mn: 0.30 to 0.70 mass % , Ti: 0.002 to 0.08 mass % , and B: less than 0.04 mass % , having a balance of Al and impurities , having an Fe/Mn ratio restricted to 1.8 to 3.5 , restricting , as impurities , Si to less than 0.20 mass % , Cu to less than 0.03 mass % , Mg to less than 0.05 mass % , and V to less than 0.03 mass % , having a conductivity of 53.0% IACS or more , having a 0.2% yield strength of 40 MPa or more , having a value of elongation of 40% or more , having a recrystallized structure , and having ...

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Номер записи: 72
26-06-2014 дата публикации

IMMERSION TOLERANT ENERGY STORAGE SYSTEM

Номер: US20140178719A1
Автор: Barnhart David Edwin, Bereisa Jonas, Ratkovich Kenneth, Robertson James Edward, Storc Robert Gordon, Suber Williams B.
Принадлежит: Magna Steyr

The present disclosure relates to an immersion tolerant electrical energy storage system for use with electric vehicles. The energy storage system is equipped with a sealed battery unit and a sealed heat exchanger that cooperates to inhibit the intrusion of fluids and other contaminants into the system. The ability to limit intrusion of such fluids and contaminants provides improved service life for the batteries in the battery unit and components of the thermal control system. 1. An immersion tolerant electrical energy storage system for a vehicle , the vehicle including an electric motor and a battery pack , the electrical energy storage system comprising:an enclosure including first and second housing portions interconnected with a seal mechanism to define a sealed internal chamber within which the battery pack is disposed; anda thermal management system for thermally managing the battery pack and including a heat exchanger, an external thermal management loop sealed relative to said heat exchanger, and an internal thermal management loop sealed relative to said heat exchanger and said enclosure.2. The immersion tolerant electrical energy storage system of further including a moisture sensing device disposed within said internal chamber of said enclosure and which is operable to detect a moisture content level therein.3. The immersion tolerant electrical energy storage system of further including a desiccant device disposed within said internal chamber of said enclosure for mitigation of condensation therein.4. The immersion tolerant electrical energy storage system of further comprising an over-pressure burst relief device associated with at least one of said first and second housing portions of said enclosure.5. The immersion tolerant electrical energy storage system of further comprising a pressure venting device associated with at least one of said first and second housing portions of said enclosure.6. The immersion tolerant electrical energy storage system ...

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Номер записи: 73
26-06-2014 дата публикации

NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK

Номер: US20140178724A1
Автор: SARUWATARI Hidesato, TANAKA Masanori
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a nonaqueous electrolyte battery includes a case member, a negative electrode terminal, an electrode group, a negative electrode lead, a rupture member, and a gas releasing portion. The electrode group is provided in the case member, and includes positive and negative electrodes. The negative electrode lead electrically connects the negative electrode terminal to the negative electrode. The gas releasing portion is provided in the case member, is able to transfer a heat from the negative electrode lead and includes a zeolite-based porous material. 1. A nonaqueous electrolyte battery comprising:a case member having a can and a lid;a negative electrode terminal which is provided in the case member;an electrode group which is provided in the case member and includes positive and negative electrodes;a negative electrode lead which electrically connects the negative electrode terminal to the negative electrode;a rupture member which is provided in the case member; anda gas releasing portion which is provided in the case member, is able to transfer a heat from the negative electrode lead and comprises a zeolite-based porous material.2. The nonaqueous electrolyte battery according to claim 1 , which further comprises a heat conduction portion comprising aluminium and connecting the negative electrode lead to the gas releasing portion.3. The nonaqueous electrolyte battery according to claim 2 , wherein the gas releasing portion faces the rupture member.4. The nonaqueous electrolyte battery according to claim 2 , wherein the zeolite-based porous material is represented by Chemical formula: Na[(AlO)(SiO)].27HO.5. The nonaqueous electrolyte battery according to claim 4 , wherein the gas releasing portion further comprises a polyolefin resin.6. The nonaqueous electrolyte battery according to claim 4 , wherein a weight of the zeolite-based porous material is from 0.001 to 4% by weight based on 100% by weight of a weight of the nonaqueous electrolyte ...

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Номер записи: 74
06-04-2017 дата публикации

Secondary battery

Номер: US20170098808A1
Автор: Minhyung Guen
Принадлежит: Samsung SDI Co Ltd

A secondary battery according to one or more embodiments includes an electrode assembly including a first electrode plate including a first electrode tab, a second electrode plate including a second electrode tab, and a separator between the first electrode plate and the second electrode plate, a case including a body accommodating the electrode assembly, a cap plate at an upper portion of the body, and a bottom plate at a lower portion of the body, an electrode terminal including a first electrode terminal electrically connected to the first electrode tab and extending through the cap plate, and a second electrode terminal electrically connected to the second electrode tab via the case and on the cap plate, and a first safety vent in the bottom plate, wherein an exterior surface of the bottom plate defines a gas exhaust groove in communication with the first safety vent.

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Номер записи: 75
28-03-2019 дата публикации

BATTERY PACK

Номер: US20190097203A1
Автор: Kwag Nohyun, Lee Jooyul
Принадлежит:

A battery pack includes: a plurality of battery cells, each comprising at least one cell vent; a connection plate extending over the plurality of battery cells and electrically connected to the plurality of battery cells; and a cover including a cover plate arranged over the connection plate and a barrier wall protruding from the cover plate towards the connection plate, and the barrier wall includes at least two round portions extending between two neighboring battery cells of the plurality of battery cells to individually surround the at least one cell vent of a battery cell of the neighboring battery cells, and a stripe portion extending across the cover plate and spaced from the round portion. 1. A battery pack comprising:a plurality of battery cells, each comprising at least one cell vent;a connection plate extending over the plurality of battery cells and electrically connected to the plurality of battery cells; anda cover comprising a cover plate arranged over the connection plate and a barrier wall protruding from the cover plate towards the connection plate,wherein the barrier wall includes at least two round portions extending between two neighboring battery cells of the plurality of battery cells to individually at least partially surround the at least one cell vent of a battery cell of the neighboring battery cells, and a stripe portion extending across the cover plate and spaced from the round portions.2. The battery pack of claim 1 , wherein each of the round portions is concave towards the at least one cell vent.3. The battery pack of claim 1 , wherein the round portions of the barrier wall comprise a pair of round portions to at least partially surround the at least one cell vent.4. The battery pack of claim 3 , wherein an opening is located between the pair of round portions.5. The battery pack of claim 4 , wherein the stripe portion faces the opening.6. The battery pack of claim 1 , wherein the stripe portion comprises a pair of stripe portions ...

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Номер записи: 76
14-04-2016 дата публикации

BATTERY PACK SYSTEM AND METHOD FOR FABRICATION THEREOF

Номер: US20160104873A1
Автор: Smythe Dave
Принадлежит: Vecture Inc.

Various embodiments of battery pack assemblies are described. In at least one embodiment, a battery pack assembly includes first and second cell carriers. At least one of the carriers is a retaining cell carrier, has a plurality of upstanding walls extending from a bottom wall thereof and defines a matrix of recesses. At least one of the carriers is a perforated cell carrier and has a wall with a plurality of openings. Battery cells, each having a plurality of cell terminals, are retained within the matrix of recesses and at least a subset of the plurality of cell terminals extend through the openings of the wall of the perforated cell carrier. Electrically conductive interconnecting members are electrically coupled to at least two of the cell terminals of the battery cells that extend through the openings of the perforated cell carrier to provide an electrical interconnection therebetween. 1. A battery pack assembly comprising:a first cell carrier;a second cell carrier, at least one of the first cell carrier and the second cell carrier being a retaining cell carrier and having a plurality of upstanding walls extending from a bottom wall thereof and defining a matrix of recesses and at least one of the first cell carrier and the second cell carrier being a perforated cell carrier and having a wall with a plurality of openings;a plurality of battery cells each having a plurality of cell terminals, the battery cells being retained within the matrix of recesses of the at least one retaining cell carrier and at least a subset of the plurality of cell terminals extending through the openings of the bottom wall of the at least one perforated cell carrier; anda plurality of electrically conductive interconnecting members each being electrically coupled to at least two of the cell terminals of the plurality of battery cells extending through the openings of the at least one perforated cell carrier and providing an electrical interconnection therebetween.2. The battery pack ...

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Номер записи: 77
14-04-2016 дата публикации

BATTERY CAP ASSEMBLY WITH HIGH EFFICIENCY VENT

Номер: US20160104875A1
Автор: King Orion A., Kohn Scott I., LePort Francisco, Prilutsky Alex
Принадлежит:

A battery cell design is disclosed that provides a predictable pathway through a portion of the cell (e.g., the cell cap assembly) for the efficient release of the thermal energy that occurs during thermal runaway, thereby reducing the chances of a rupture in an undesirable location. Furthermore the disclosed design maintains the functionality of the cell cap as the positive terminal of the cell, thereby having minimal impact on the manufacturability of the cell as well as its use in a variety of applications. 122-. (canceled)23. A method , comprising:a) enclosing an electrode assembly for a first battery cell within a closed case, said electrode assembly having a cathode and an anode with said electrode assembly constructed of materials that combust under a plurality of combustion conditions to generate a combustion material having a plurality of combustion material properties including a combustion material temperature and a combustion material pressure;b) defining an ejectment structure within a portion of said closed case; andc) responding to one or more particular combustion material properties of said plurality of combustion material properties to provide an ejectment aperture at a predefined location that directs said combustion material out of said closed case in a predetermined direction.24. The method of wherein said closed case includes a width dimension claim 28 , a height dimension claim 28 , and a length dimension claim 28 , a largest of said dimensions generally parallel to said side wall claim 28 , wherein said portion of said closed case is integrated into said crown claim 28 , wherein an electrical contact is provided at said crown with a cell cap assembly coupled to said side wall claim 28 , wherein said portion of said closed case includes said cell cap assembly claim 28 , and wherein said cell cap assembly includes said ejectment structure and said electrical contact defines a first form factor for operation of said first battery cell; the ...

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Номер записи: 78
23-04-2015 дата публикации

SECONDARY BATTERY MODULE

Номер: US20150111069A1
Автор: Byun Sangwon, Han Minyeol, Oh Jeongwon, PARK Zin
Принадлежит: Samsung SDI Co., Ltd.

A secondary battery module includes a plurality of secondary batteries arranged in parallel with each other, each of the plurality of secondary batteries including an electrode assembly, a case accommodating the electrode assembly, first and second electrode terminals electrically coupled to the electrode assembly, and a short circuit member electrically coupled to the first electrode terminal and configured to protrude towards outside of the case when an internal pressure in the case increases, a plurality of first connection members coupling the plurality of secondary batteries to each other in series, and a second connection member having one side facing a short circuit member of one of the plurality of secondary batteries and an other side electrically coupled to a second electrode terminal of a secondary battery arranged at a last position from among the plurality of secondary batteries. 1. A secondary battery module comprising:a plurality of secondary batteries arranged in parallel with each other, each of the plurality of secondary batteries comprising an electrode assembly, a case accommodating the electrode assembly, first and second electrode terminals electrically coupled to the electrode assembly, and a short circuit member electrically coupled to the first electrode terminal and configured to protrude towards outside of the case when an internal pressure in the case increases;a plurality of first connection members coupling the plurality of secondary batteries to each other in series; anda second connection member having one side facing a short circuit member of one of the plurality of secondary batteries and an other side electrically coupled to a second electrode terminal of a secondary battery arranged at a last position from among the plurality of secondary batteries.2. The secondary battery module as claimed in claim 1 , further comprising an insulation film covering top surfaces of the plurality of secondary batteries and having an opening above ...

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Номер записи: 79
26-03-2020 дата публикации

BATTERY MODULE

Номер: US20200099030A1
Автор: Kishii Daisuke, Motokawa Shinya, Shimizu Keisuke, Takano Akira
Принадлежит:

A battery module includes a plurality of cylindrical batteries that each include a safety valve surrounded by an annular breaking portion configured to break when internal pressure of each of the batteries exceeds a predetermined level. The battery module further includes an exhaust duct to guide gas emitted from the cylindrical battery to outside the module when safety valve is opened, and a gas direction regulator component disposed between the cylindrical batteries and the exhaust duct. The gas direction regulator component has a plurality of openings to expose the respective safety valves. Portions of the gas direction regulator component overhang areas overlapping the respective safety valves so as to cover an end of each safety valve opposite another end of each safety valve adjacent to an exit of the exhaust duct. 1. A battery module comprising:a plurality of batteries that each include a safety valve surrounded by an annular breaking portion configured to break when internal pressure of each of the plurality of the batteries exceeds a predetermined level;an exhaust duct to guide gas emitted from any of the plurality of the batteries to outside the battery module when any of the safety valves is opened; anda gas direction regulator component disposed between the plurality of the batteries and the exhaust duct,wherein the gas direction regulator component has a plurality of openings to expose the safety valves of the respective batteries, andportions of the gas direction regulator component overhang areas overlapping the respective safety valves so as to cover an end of each of the safety valves opposite another end of each of the safety valves adjacent to an exit of the exhaust duct.2. The battery module according to claim 1 , comprising a current collector plate acting as the gas direction regulator component and having a plurality of leads connected to the respective safety valves claim 1 ,wherein each of the leads extends from a side remote from the exit ...

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Номер записи: 80
19-04-2018 дата публикации

PRESSURE RELIEF ELEMENT, PRESSURE RELIEF DEVICE AND BATTERY

Номер: US20180108885A1
Автор: Brenner Helge, Chladek Kevin, Hoh Markus, Joswig Ralf, Wiegmann Martin
Принадлежит:

The present invention relates to a pressure relief element () to be used as an overpressure safety means in devices where a gaseous medium must be rapidly released in case of overpressure, wherein the pressure relief element () has at least one notch () which is designed as a predetermined breaking point where the pressure relief element () breaks at a certain level of overpressure, thereby irreversibly opening an exhaust path for the gaseous medium. The present invention also relates to a pressure relief device of an electrochemical battery, comprising such a pressure relief element and a battery comprising such a pressure relief device. 117-. (canceled)18. A pressure relief disk of a battery module , comprising:a first side having a contoured surface; anda second side, opposite the first side, having a substantially flat surface portion, wherein a thickness of the pressure relief disk steadily decreases from a raised central portion to a base of a raised outer portion of the pressure relief disk to define the contoured surface, and wherein the second side comprises a notch that defines a predetermined breaking point between the raised central portion and the raised outer portion of the pressure relief disk.19. The pressure relief disk of claim 18 , wherein the notch is disposed where the raised outer portion meets the remainder of the pressure relief disk.20. The pressure relief disk of claim 18 , wherein the pressure relief disk is an injection molded pressure relief disk.21. The pressure relief disk of claim 20 , wherein the first side is an injection side of the injection molded pressure relief disk.22. The pressure relief disk of claim 18 , wherein the notch is a circumferential notch that partially surrounds the raised central portion of the pressure relief disk.23. The pressure relief disk of claim 18 , wherein the notch is a circumferential notch that completely surrounds the raised central portion of the pressure relief disk.24. The pressure relief disk of ...

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Номер записи: 81
20-04-2017 дата публикации

CYLINDRICAL SEALED BATTERY

Номер: US20170110699A1
Автор: Kohira Kazutoshi, Miyata Kyosuke
Принадлежит: SANYO ELECTRIC CO., LTD.

A nonaqueous electrolyte secondary battery representing an embodiment of a sealed battery of the present invention includes a bottomed cylindrical exterior case (), a sealing member (), a cylindrical wound electrode assembly () including a positive electrode plate () and a negative electrode plate () wound together via a separator (), and an electrolyte. The cylindrical wound electrode assembly () and the electrolyte are accommodated in the exterior case (). An open end of the exterior case () is crimped together with the sealing member () via an insulating gasket () so as to form a seal. The sealing member () includes a valving element () having a thin and fragile portion () and a support element () having an opening (). The support element () is disposed on an outer side of the valving element (), and a portion of the valving element () is exposed to an outside environment along the inner periphery of the opening () in the support element (). 1. A cylindrical sealed battery comprising:a bottomed cylindrical exterior case, a sealing member, a cylindrical wound electrode assembly including a positive electrode plate and a negative electrode plate wound together via a separator, and an electrolyte.the cylindrical wound electrode assembly and the electrolyte being accommodated in the exterior case, an open end of the exterior case being crimped together with the sealing member via an insulating gasket so as to form a seal,the sealing member including:a valving element having a thin and fragile portion and a circular support element having an opening, andthe support element being disposed on an outer side of the valving element so as to expose a portion of the valving element to an outside environment through the opening in the support element.2. The cylindrical sealed battery according to claim 1 , wherein the fragile portion of the valving element is disposed within the inner periphery of the opening.3. The cylindrical sealed battery according to claim 1 , wherein ...

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Номер записи: 82
17-07-2014 дата публикации

SECONDARY BATTERY

Номер: US20140199567A1
Автор: KIM Dae-Kyu
Принадлежит: Samsung SDI Co., Ltd.

A secondary battery is disclosed. In one aspect, the battery includes an electrode assembly, a can accommodating the electrode assembly therein and a cap assembly sealing the can. The cap assembly includes a sub-plate electrically connected to the electrode assembly and a vent having a protruding portion electrically connected to the sub-plate. The vent includes i) a first fracture portion and ii) a second fracture portion formed between the first fracture portion and the protruding portion. 1. A secondary battery , comprising:an electrode assembly;a can accommodating the electrode assembly therein; anda cap assembly sealing the can,wherein the cap assembly comprises a sub-plate electrically connected to the electrode assembly and a vent having a protruding portion electrically connected to the sub-plate, andwherein the vent comprises i) a first fracture portion and ii) a second fracture portion formed between the first fracture portion and the protruding portion.2. The secondary battery of claim 1 , wherein the first fracture portion is configured to be fractured when an internal pressure of the secondary battery becomes greater than a first fracture pressure claim 1 , wherein the second fracture portion is configured to be fractured when the internal pressure becomes greater than a second fracture pressure different from the first fracture pressure.3. The secondary battery of claim 2 , wherein the first fracture pressure is greater than the second fracture pressure.4. The secondary battery of claim 3 , wherein the second fracture portion is thinner than the first fracture portion.5. The secondary battery of claim 1 , wherein the first fracture portion is notched in a substantially circular shape along the circumference of the protruding portion.6. The secondary battery of claim 5 , wherein the first fracture portion includes a disconnection region on which a certain region is not notched.7. The secondary battery of claim 1 , wherein the second fracture portion is ...

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Номер записи: 83
07-05-2015 дата публикации

POWER SOURCE DEVICE, ELECTRIC VEHICLE PROVIDED WITH SAME, AND ELECTRICITY STORAGE DEVICE

Номер: US20150125720A1
Автор: FUJII Kazuhiro, Omura Tetsuji
Принадлежит:

In a power supply device, the gas exhaust valve is integrally coupled to the outer can at the time of opening the gas exhaust valve, and the connecting portion between the outer can and the gas exhaust valve is partially broken at the time of opening the gas exhaust valve by an internal pressure of the outer can, and the gas duct further comprises a joining aperture being connected airtight to the gas exhaust valve, and a duct exhaust portion being connected to the external gas exhaust duct, and the inner diameter d inside the gas duct is at least partially smaller than the outer diameter a of the gas exhaust valve between the joining aperture and the duct exhaust portion. 1. A power supply device comprising: an outer can; and', 'a gas exhaust valve opening a part of the outer can in response to becoming a high pressure in the inside of the outer can,, 'a battery cell comprisinga gas duct guiding the gas exhausted from the gas exhaust valve to an external gas exhaust duct,wherein the gas exhaust valve is integrally coupled to the outer can at the time of opening the gas exhaust valve, and the connecting portion between the outer can and the gas exhaust valve is partially broken at the time of opening the gas exhaust valve by an internal pressure of the outer can, a joining aperture being connected airtight to the gas exhaust valve; and', 'a duct exhaust portion being connected to the external gas exhaust duct,, 'the gas duct further comprisingwherein the inner diameter inside the gas duct is at least partially smaller than the outer diameter of the gas exhaust valve between the joining aperture and the duct exhaust portion.2. The power supply device according to claim 1 , wherein the duct exhaust portion is smaller than the outer diameter of the gas exhaust valve.3. The power supply device according to claim 1 , wherein the gas exhaust valve is made of a metal board.4. The power supply device according to claim 1 , wherein the outer can has a tubular shape of a ...

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Номер записи: 84
09-04-2020 дата публикации

EXPLOSION-PROOF VALVE, COVER PLATE ASSEMBLY, AND BATTERY

Номер: US20200112010A1
Автор: HU Shichao, Jiang Luxia, LU Peng, WANG Xinyue, Zhu Jianhua, ZHU Yan
Принадлежит:

The present disclosure provides an explosion-proof valve, a cover plate assembly, and a battery. The explosion-proof valve includes a base body and an explosion-proof membrane, where the explosion-proof membrane includes a welding portion at a peripheral edge and an opening portion in the middle; the opening portion of the explosion-proof membrane is provided with an explosion-proof notch; and a flexible buffer structure is further disposed between the explosion-proof notch and a welding seam between the welding portion and the base body. 1. An explosion-proof valve , comprising:a base body, comprising a pressure relief hole;an explosion-proof membrane, comprising a welding portion at a peripheral edge and welded on the base body, and an opening portion in the middle and configured to block the pressure relief hole, wherein the opening portion further comprises an explosion-proof notch;a welding seam between the welding portion and the base body; anda flexible buffer structure is further disposed between the explosion-proof notch and the welding seam.2. The explosion-proof valve according to claim 1 , wherein a mounting step is disposed on the base body claim 1 , and the mounting step comprises a support surface and a side surface; andthe welding portion of the explosion-proof membrane is supported on the support surface, and the welding seam is formed between the welding portion and the side surface of the mounting step.3. The explosion-proof valve according to claim 2 , wherein the flexible buffer structure is annular.4. The explosion-proof valve according to claim 3 , wherein the flexible buffer structure comprises one or more wave crests and/or or wave troughs.5. The explosion-proof valve according to claim 4 , wherein the flexible buffer structure comprises one wave crest and one wave trough.6. The explosion-proof valve according to claim 4 , wherein a thickness of the welding portion of the explosion-proof membrane is 0.2-0.8 mm claim 4 , and a thickness of ...

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Номер записи: 85
05-05-2016 дата публикации

Mitigating thermal runaway in lithium ion batteries using damage-initiating materials or devices

Номер: US20160126535A1
Автор: Anh Lee, Weiyi Lu, Yang Shi, YU Qiao
Принадлежит: UNIVERSITY OF CALIFORNIA

A method of manufacturing a battery includes introducing a first material to the battery, providing an anode, a cathode and a separator of the battery; and assembling the anode, the separator and the cathode. The first material is configured and arranged to increase the internal impedance of the battery upon mechanical or thermal loading.

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Номер записи: 86
24-07-2014 дата публикации

PACKAGED BATTERY, STACKED BATTERY ASSEMBLY, AND FILM-COVERED BATTERY

Номер: US20140205869A1
Автор: Mizuta Masatomo, OTOHATA Makihiro, UTSUMI Kazuaki, Yageta Hiroshi
Принадлежит: NEC Corporation

A packaged battery, an assembled battery, and a film-covered battery, which can prevent a dangerous state involving a high-pressure gas filled in the film-covered battery while ensuring a sealing reliability, are provided. The Packaged battery includes film-covered battery including a battery element and exterior films forming a sealed space housing the battery element, and holding member holding film-covered battery . The sealed space includes a housing section housing the battery element, and a pocket communicating with the housing section to expand when the pressure in the sealed space increases. The pocket includes a safety valve which activates when the pocket expands. Holding member includes an opening and a cavity fitting the housing section therein. When the housing section is fitted into the cavity, at least part of the pocket and the safety valve protrude to the outside of the holding member from the opening. 1. A film-covered battery including a battery element , and exterior films which form a sealed space which fits said battery element therein , said sealed space including a housing section which houses said battery element therein , and a pocket being folded or wound , said pocket communicating with said housing section , said pocket being composed of fusion-bonded film overhang and of fusion-bonding free area that is surrounded by said fusion-bonded film overhang , said pocket including a safety valve which passes through said external films.2. The film-covered battery according to claim 1 , wherein claim 1 , said pocket is unfolded or unwound due to an increase in the inner pressure such that said safety valve protrudes.3. The film-covered battery according to claim 1 , wherein claim 1 , in a situation in which said film-covered battery is held in a holding member that includes an opening or a notch claim 1 , said pocket is unfolded or unwound due to an increase in the inner pressure such that at least part of said pocket and said safety valve ...

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Номер записи: 87
24-07-2014 дата публикации

RECHARGEABLE BATTERY

Номер: US20140205877A1
Автор: Kim Sung-Kab
Принадлежит:

A rechargeable battery includes an electrode assembly, a case receiving the electrode assembly, a cap plate combined to the case, the cap plate including an opening and a bending inducing groove extending to a side of the cap plate from a side of the opening, and an electrode terminal installed in a terminal hole of the cap plate. 1. A rechargeable battery , comprising:an electrode assembly;a case receiving the electrode assembly;a cap plate combined to the case, the cap plate including an opening and a bending inducing groove extending to a side of the cap plate from a side of the opening; andan electrode terminal installed in a terminal hole of the cap plate.2. The rechargeable battery as claimed in claim 1 , wherein:the cap plate includes a short side and a long side corresponding to the case, andthe bending inducing groove is disposed on respective sides of the opening on a same line.3. The rechargeable battery as claimed in claim 2 , wherein the bending inducing groove is disposed in parallel with the short side.4. The rechargeable battery as claimed in claim 1 , wherein the bending inducing groove includes:a vertical surface vertically disposed relative to a top surface of the cap plate; anda slanted surface extending from a bottom of the vertical surface to the top surface of the cap plate with a predetermined angle.5. The rechargeable battery as claimed in claim 1 , wherein the bending inducing groove includes:a first bending inducing groove disposed at a top surface of the cap plate; anda second bending inducing groove disposed at a bottom surface of the cap plate corresponding to the first bending inducing groove.6. The rechargeable battery as claimed in claim 5 , wherein a first thickness T1 that is set at a lowest bottom of the first bending inducing groove is greater than a second thickness T2 that is set at a highest top of the second bending inducing groove.7. The rechargeable battery as claimed in claim 5 , wherein: a first vertical surface ...

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Номер записи: 88
03-05-2018 дата публикации

BATTERY ENCLOSURE VENT ASSEMBLY AND VENTING METHOD

Номер: US20180123104A1
Автор: Liptak Stephen, Lomax Olivia, Maguire Patrick Daniel
Принадлежит:

An exemplary assembly includes an enclosure wall of an enclosure that houses at least one battery cell, and a vent of the enclosure wall. The vent is configured to move from a first position to a second position in response to an increase in a pressure within an interior of the enclosure. The vent in the second position provides a passage to discharge battery vent byproducts from the interior. An exemplary battery pack venting method includes moving a vent of an enclosure wall from a first position to a second position in response to an increase in a pressure within an interior of an enclosure having the enclosure wall. The vent in the second position provides a passage to discharge battery vent byproducts from the interior. 1. A battery assembly , comprising:an enclosure wall of an enclosure that houses at least one battery cell; anda vent of the enclosure wall, the vent is configured to move from a first position to a second position in response to an increase in a pressure within an interior of the enclosure, the vent in the second position provides a passage to discharge battery vent byproducts from the interior.2. The battery assembly of claim 1 , wherein the vent and the enclosure wall together provide a monolithic structure.3. The battery assembly of claim 1 , wherein an area of the enclosure wall directly adjacent the vent has a first thickness claim 1 , and the vent has a second thickness that is less than the first thickness.4. The battery assembly of claim 1 , further comprising the enclosure having a lid and a tray claim 1 , wherein the lid includes the enclosure wall with the vent.5. The battery assembly of claim 1 , wherein a portion of the vent protrudes into the interior past an area of the enclosure wall directly adjacent the vent when the vent is in the first position claim 1 , and the portion is moved outward away from the interior when the vent is in the second position.6. The battery assembly of claim 1 , wherein the enclosure wall and the vent ...

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Номер записи: 89
03-05-2018 дата публикации

CAP ASSEMBLY HAVING IMPROVED STABILITY AND CYLINDRICAL SECONDARY BATTERY INCLUDING THE SAME

Номер: US20180123163A1
Автор: KANG Jung Koo, Lee Je Jun, Park Pil Kyu, Song Han Gab, Sung Joo Hwan, YOON Yeo Min
Принадлежит: LG CHEM, LTD.

The present invention relates to a cap assembly formed of a composite of cap assembly ceramic for the cylindrical battery and mounted on a top end portion of the cylindrical secondary battery in which an electrode assembly is placed in a cylindrical can, which includes a safety vent having a predetermined notch configured to be ruptured by high pressure gas generated in the battery, a current interrupt device coupled to a lower end of the safety vent and blocking a current when an internal pressure of the battery rises, and a gasket for the current interrupt device surrounding an outer circumferential surface of the current interrupt device, wherein the gasket for the current interrupt device comprises a polymer resin having a melting point of 250° C. or more and a heat deflection temperature (HDT) of 200° C. or more, and a cylindrical secondary battery including the same. 1. A cap assembly for a cylindrical secondary battery , which is mounted on a top end portion of the cylindrical secondary battery having a structure in which an electrode assembly is placed in a cylindrical can , the cap assembly comprising:a safety vent having a predetermined notch configured to be ruptured by high pressure gas generated in the battery;a current interrupt device coupled to a lower end of the safety vent and blocking a current when an internal pressure of the battery rises; anda gasket for the current interrupt device surrounding an outer circumferential surface of the current interrupt device,wherein the gasket for the current interrupt device comprises a polymer resin having a melting point of 250° C. or more and a heat deflection temperature of 200° C. or more.2. The cap assembly for a cylindrical secondary battery of claim 1 , wherein the polymer resin comprises at least one polymer resin selected from the group consisting of a perfluoroalkoxy resin and a thermoplastic polyester elastomer (TPEE) having a weight-average molecular weight of 10 claim 1 ,000 to 500 claim 1 ,000.3 ...

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Номер записи: 90
25-04-2019 дата публикации

SECONDARY BATTERY

Номер: US20190123313A1
Автор: CHI Qingkui, DENG Pinghua, GUO Jian, LI Quankun, WANG Peng, Zhu Lingbo
Принадлежит:

The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is beneath the electrode tab pad plate, the welding part is above the electrode tab pad plate, and the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab. 1. A secondary battery , comprising: a top cover , a first electrode terminal , a second electrode terminal , an electrode tab pad plate , an electrode assembly , a first electrode tab and a second electrode tab; the first electrode terminal and the second electrode terminal are both arranged at the top cover;the electrode tab pad plate is located between the top cover and the electrode assembly;the first electrode tab comprises a connecting part, a folding part and a welding part, the connecting part is beneath the electrode tab pad plate, the welding part is above the electrode tab pad plate, the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected between the connecting part and the welding part and bypasses the electrode tab pad plate;the second electrode terminal is connected with the electrode assembly through the second electrode tab; anda viscous material is coated on an upper surface of the electrode tab ...

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Номер записи: 91
12-05-2016 дата публикации

LITHIUM ION BATTERY AND LITHIUM ION BATTERY PACK

Номер: US20160133900A1
Автор: Cai Ru lai, Li Shao gang, Li Wei, Qu Qiong, Wang Xue hui
Принадлежит:

According to one embodiment of the present invention, a lithium ion battery having desirable safety performance is provided. The lithium ion battery includes a battery housing, a battery cover assembled to the battery housing, a pressure relief valve coupled to the battery housing and/or battery cover, and a safety device formed on the housing and/or battery cover and fixed to the pressure relief valve. The safety device includes a shielding plate facing the pressure relief valve, a side wall and an air flow channel structure. The side wall extends from the shielding plate and connects with the battery housing or the battery cover. The air flow channel structure is defined in the side wall. 1. A lithium ion battery , comprising:a battery housing;a battery cover assembled to the battery housing; anda pressure relief valve coupled to the battery housing and/or battery cover;wherein the battery housing and/or the battery cover is assembled with a first safety device fixed to the pressure relief valve, the first safety device comprises a shielding plate facing the pressure relief valve, a side wall and an air flow channel structure, the side wall extends from the shielding plate and connects with the battery housing or the battery cover, and the air flow channel structure is defined in the side wall.2. The lithium ion battery of claim 1 , wherein the air flow channel structure is only defined in the side wall.3. The lithium ion battery of claim 1 , wherein the air flow channel structure comprises at least one opening claim 1 , at least one through holes array claim 1 , or at least one notch defined in the side wall.4. The lithium ion battery of claim 3 , wherein the air flow channel structure is a through holes array claim 3 , and each through hole in the through holes array has an area no less than 1 mm.5. The lithium ion battery of claim 1 , wherein the shielding plate defines a plurality of through holes claim 1 , and each through hole in the shielding plate has an ...

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Номер записи: 92
12-05-2016 дата публикации

LITHIUM ION BATTERY AND BATTERY PACK

Номер: US20160133901A1
Автор: CAI Rulai, Li Shaogang, Li Wei, Qu Qiong, Wang Xuehui
Принадлежит:

The present invention discloses a lithium ion battery, including a battery shell, a battery top cap mounted on the battery shell, and a relief valve provided on the battery shell and/or the battery top cap; the lithium ion battery further includes a safety protection device that is provided on the battery shell and/or the battery top cap and that fixedly fits with the relief valve; where the safety protection device includes a baffle plate opposite to the relief valve, a side wall and a gas flow channel structure; the side wall extends, from the baffle plate, toward the battery shell or the battery top cap, and is connected with the battery shell or the battery top cap; and the gas flow channel structure is formed on the side wall. By forming the gas flow channel structure on the side wall, the baffle plate and the gas flow channel structure form a relatively separate design, so that the baffle plate may be used for effectively baffling solid spark particles, and meanwhile the lateral gas flow channel structure may be used for effectively discharging gases, thereby improving the safety performance of the lithium ion battery. 1. A lithium ion battery , comprising a battery shell , a battery top cap mounted on the battery shell , and a relief valve provided on the battery shell and/or the battery top cap; wherein the lithium ion battery further comprises a safety protection device that is provided on the battery shell and/or the battery top cap and that fixedly fits with the relief valve; the safety protection device comprises a baffle plate opposite to the relief valve , a side wall and a gas flow channel structure; the side wall extends , from the baffle plate , toward the battery shell or the battery top cap , and is connected with the battery shell or the battery top cap; and the gas flow channel structure is formed on the side wall.2. The lithium ion battery according to claim 1 , wherein the gas flow channel structure is only provided on the side wall.3. The ...

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Номер записи: 93
31-07-2014 дата публикации

RECHARGEABLE BATTERY

Номер: US20140212709A1
Автор: Roh Sae-Weon, Song Sung-Ho
Принадлежит: Samsung SDI Co., Ltd.

A rechargeable battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate, a can having an opening at one side thereof through which the electrode assembly is inserted, the electrode assembly being accommodated in the inside of the can, and a cap plate that seals the opening of the can. The can includes a first vent on a first side surface of the can, and a second vent on a second side surface of the can. 1. A rechargeable battery , comprising:an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate;a can having an opening at one side thereof through which the electrode assembly is inserted, the electrode assembly being accommodated in the inside of the can; anda cap plate that seals the opening of the can, a first vent on a first side surface of the can; and', 'a second vent on a second side surface of the can., 'the can including2. The rechargeable battery as claimed in claim 1 , wherein the first side surface of the can and the second side surface of the can are located on opposite sides of the rechargeable batter from each other.3. The rechargeable battery as claimed in claim 1 , whereinthe first vent is on a lower portion of the first side surface of the can, andthe second vent is on an upper portion of the second side surface of the can.4. The rechargeable battery as claimed in claim 3 , wherein the first vent and the second vent are disposed away from each other.5. The rechargeable battery as claimed in claim 1 , whereinthe first vent and the second vent are each in a form of a recess, anda depth of the first vent is deeper than a depth of the second vent.7. The rechargeable battery as claimed in claim 5 , wherein a maximum depth of the second vent is about 0.5 times the depth of the first vent.8. The rechargeable battery as claimed ...

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Номер записи: 94
31-07-2014 дата публикации

BATTERY

Номер: US20140212710A1
Автор: Min Jae Yun
Принадлежит: SK INNOVATION CO., LTD.

Provided is a battery, and more particularly, a battery in which a cutting unit is formed in a seating groove so that the cutting unit and a sub battery module do not contact each other in a normal operation state, such that the battery may be stably driven, and a pouch of the sub battery module may be cut by the cutting unit only in an abnormal operation state such as over-charging, over-discharging, exposure to a high temperature, an electric short circuit, or the like, to prevent ignition or explosion in advance, such that safety may be improved. 1. A battery comprising:a sub battery module including at least one battery cell, an electrode tab extended from the battery cell in one direction and, a pouch accommodates the battery cell therein; anda battery module case protecting the sub battery module,wherein a predetermined region of an inner surface of the battery module case is provided with a concave seating groove; andan inner portion of the seating groove is provided with a cutting unit protruding toward the sub battery module to cut the pouch at the time of a contact with the pouch.2. The battery of claim 1 , wherein the cutting unit has a height lower than that of the seating groove claim 1 , such that the cutting unit and the sub battery module do not contact each other at the time of normal operation of the battery and contact each other at the time of abnormal operation of the battery.3. The battery of claim 2 , wherein a plurality of seating grooves are formed claim 2 , and the cutting units are formed in the plurality of seating grooves claim 2 , respectively.4. The battery of claim 1 , wherein a plurality of battery module cases are provided in parallel with each other claim 1 , and the sub battery modules are provided in the battery module cases claim 1 , respectively.5. The battery of claim 4 , wherein an outer surface of a seating groove of one of the battery module cases facing each other is positioned so as to contact an outer surface of the ...

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Номер записи: 95
10-05-2018 дата публикации

RECHARGEABLE BATTERY PACK

Номер: US20180130996A1
Автор: Kim Dukjung
Принадлежит:

A rechargeable battery pack may improve safety of the rechargeable battery pack by interrupting a high voltage of a module when a defect of a unit cell occurs. A rechargeable battery pack includes: unit cells configured to be repeatedly charged or discharged; bus bars configured to electrically connect electrode terminals of the unit cells; a housing configured to accommodate the unit cells; a first final terminal and a second final terminal configured to draw respective electrode terminals provided at outermost unit cells of the unit cells out of the housing; and a high voltage interruption device configured to be provided at the first final terminal and to electrically connect or disconnect a high voltage line according to an internal pressure generated when a defect of a unit cell of the unit cells occurs. 1. A rechargeable battery pack comprising:unit cells configured to be repeatedly charged or discharged;bus bars configured to electrically connect electrode terminals of the unit cells;a housing configured to accommodate the unit cells;a first final terminal and a second final terminal configured to draw respective electrode terminals provided at outermost unit cells of the unit cells out of the housing; anda high voltage interruption device configured to be provided at the first final terminal and to electrically connect or disconnect a high voltage line according to an internal pressure generated when a defect of a unit cell of the unit cells occurs.2. The rechargeable battery pack of claim 1 , wherein the first final terminal provided with the high voltage interruption device comprises:a pressure via-member configured to be electrically connected to an electrode terminal of an outermost unit cell of the outermost unit cells and to pass the internal pressure generated when the defect of the unit cell occurs through a first through-hole;an inverting member configured to supply or interrupt a high voltage by closing or opening the first through-hole of the ...

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Номер записи: 96
21-05-2015 дата публикации

CURVED BATTERY CONTAINER

Номер: US20150140371A1
Автор: Slocum Alexander H.
Принадлежит:

A curved container for electrochemical battery cells manufactured with an open side into which the battery cells are placed along with a resilient structure such that when the lid is placed on the container and attached/sealed, the battery cells are sealed in the container and preloaded against the large top and bottom surfaces of the container. Electrical contacts feed through one edge of the container to enable the electrical power generated by the cells to be safely accessed, and the cells can be safely charged without external atmospheric leaks into the container, or gases generated during battery use to escape. The containers can be stacked on edge next to each other as a stack but without the need to compress the stack to maintain battery cell compression, which enables a container to be easily replaced without having to dissemble the stack. 1. An electrochemical cell , comprising:a container including a first portion and a second portion and defining an inner volume therebetween, the first portion including a first surface having a first radius of curvature, the second portion including a second surface having a second radius of curvature, the second surface opposite the first surface and the second radius of curvature different than the first radius of curvature; andan electrochemical cell stack disposed in the inner volume, the electrochemical cell stack including an anode, a cathode and a separator disposed between the anode and the cathode.2. The electrochemical cell of claim 1 , wherein the electrochemical cell stack further includes a resilient structure disposed in the inner volume claim 1 , the resilient structure configured to exert a compressive load on the electrochemical cell stack.3. The electrochemical cell of claim 2 , wherein the electrochemical cell stack is a first electrochemical cell stack claim 2 , the electrochemical cell further comprising:a second electrochemical cell stack, wherein the resilient structure is disposed between the first ...

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Номер записи: 97
11-05-2017 дата публикации

CYLINDRICAL SEALED BATTERY AND BATTERY PACK

Номер: US20170133645A1
Автор: Kohira Kazutoshi, Miyata Kyosuke
Принадлежит: SANYO ELECTRIC CO., LTD.

A nonaqueous electrolyte secondary battery representing an embodiment of a sealed battery of the present invention includes a bottomed cylindrical exterior case, a sealing member, a cylindrical wound electrode assembly and an electrolyte. An open end of the exterior case is crimped together with the sealing member via an insulating gasket so as to form a seal. The sealing member includes a lid having a thin and fragile portion, an insulating ring, and a terminal plate having a thin and fragile portion. The terminal plate is electrically connected to a positive electrode current collector leading out from the cylindrical wound electrode assembly. The lid and the terminal plate are electrically connected within an opening of the insulating ring. The lid is disposed so as to expose an outer side of at least a portion of the lid opposed to the opening of the insulating ring directly to an outside environment. 1. A cylindrical sealed battery comprising:a bottomed cylindrical exterior case, a sealing member, a cylindrical wound electrode assembly including a positive electrode plate and a negative electrode plate wound together via a separator, and an electrolyte,the cylindrical wound electrode assembly and the electrolyte being accommodated in the exterior case, an open end of the exterior case being crimped together with the sealing member via an insulating gasket so as to form a seal,the sealing member including a lid having a thin and fragile portion, an insulating ring disposed on an inner side of the lid, and a terminal plate having a thin and fragile portion disposed on the inner side of the lid,the terminal plate being electrically connected to a current collector leading out from the cylindrical wound electrode assembly,the lid and the terminal plate being electrically connected to each other within an opening of the insulating ring, andthe lid being disposed so as to expose an outer side of at least a portion of the lid opposed to the opening of the insulating ...

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Номер записи: 98
11-05-2017 дата публикации

HYDROGEN-RELEASING FILM

Номер: US20170133646A1
Автор: FUKUOKA Takahiro, HATA Kenta, ISHII Kyoko, Kira Yoshiko, NANBU Tomonori, YUKAWA Hiroshi
Принадлежит: NITTO DENKO CORPORATION

The present invention provides a hydrogen-releasing film and a hydrogen-releasing laminated film that have high reliability as a safety valve since defects such as cracks do not occur before the internal pressure of an electrochemical element reaches a predetermined pressure. The hydrogen-releasing film contains an alloy having Pd as an essential metal, and the size of the crystal grains in the alloy is 0.028 μm or more. 1. A hydrogen-releasing film containing an alloy having Pd as an essential metal , wherein the size of the crystal grains in the alloy is 0.028 μm or more.2. The hydrogen-releasing film according to claim 1 , wherein the alloy contains a Group 11 element in an amount of 20 to 65 mol %.3. The hydrogen-releasing film according to claim 2 , wherein the Group 11 element is at least one kind selected from the group consisting of gold claim 2 , silver claim 2 , and copper.4. The hydrogen-releasing film according to claim 2 , wherein the hydrogen permeation coefficient at 50° C. is 1.0×10to 2.0×10(mol·m·sec·Pa) claim 2 , and the film thickness t and the film areas satisfy the following expression 1.{'br': None, 'i': t/s<', 'm, 'sup': '−1', '32.9\u2003\u2003'}5. A hydrogen-releasing laminated film claim 1 , comprising a support on one surface or both surfaces of the hydrogen-releasing film according to .6. The hydrogen-releasing laminated film according to claim 5 , wherein the support is a porous body having an average pore diameter of 100 μm or less.7. The hydrogen-releasing laminated film according to claim 5 , wherein a raw material of the support is at least one kind selected from the group consisting of polytetrafluoroethylene claim 5 , polysulfone claim 5 , polyimide claim 5 , polyamide-imide claim 5 , and aramid.8. A safety valve for an electrochemical element claim 1 , wherein the valve is provided with the hydrogen-releasing film according to .9. An electrochemical element claim 8 , wherein the element is provided with the safety ...

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Номер записи: 99
11-05-2017 дата публикации

HYDROGEN-RELAEASING FILM

Номер: US20170133647A1
Автор: FUKUOKA Takahiro, HATA Kenta, ISHII Kyoko, Kira Yoshiko, NANBU Tomonori, YUKAWA Hiroshi
Принадлежит: NITTO DENKO CORPORATION

The present invention provides a hydrogen-releasing film and a hydrogen-releasing laminated film that is free from defects even when the amount of hydrogen release is increased due to a large quantity of hydrogen gas generated within the electrochemical element, or an electrochemical element is used for a long period of time. The hydrogen-releasing film containing an alloy having Pd as an essential metal, wherein the hydrogen storage quantity when measured at 50° C. and a hydrogen partial pressure of 0.01 MPa is 0.4 (H/M) or less. 1. A hydrogen-releasing film containing an alloy having Pd as an essential metal , wherein the hydrogen storage quantity when measured at 50° C. and a hydrogen partial pressure of 0.01 MPa is 0.4 (H/M) or less.2. The hydrogen-releasing film according to claim 1 , wherein the alloy contains a Group 11 element in an amount of 20 to 65 mol %.3. The hydrogen-releasing film according to claim 2 , wherein the Group 11 element is at least one kind selected from the group consisting of gold claim 2 , silver claim 2 , and copper.4. The hydrogen-releasing film according to claim 2 , wherein the hydrogen permeation coefficient at 50° C. is 1.0×10to 2.0×10(mol·m·sec·Pa) claim 2 , and the film thickness t and the film area s satisfy the following expression 1.{'br': None, 'i': 't/s<', 'sup': '−1', '32.9 m\u2003\u2003'}5. A hydrogen-releasing laminated film claim 1 , comprising a support on one surface or both surfaces of the hydrogen-releasing film according to .6. The hydrogen-releasing laminated film according to claim 5 , wherein the support is a porous body having an average pore diameter of 100 μm or less.7. The hydrogen-releasing laminated film according to claim 5 , wherein a raw material of the support is at least one kind selected from the group consisting of polytetrafluoroethylene claim 5 , polysulfone claim 5 , polyimide claim 5 , polyamide-imide claim 5 , and aramid.8. A safety valve for an electrochemical element claim 1 , ...

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Номер записи: 100