Lithium ion secondary battery, device for recovering battery capacity and method for recovering battery capacity

Disclosed is a lithium ion secondary battery which comprises: an outer casing member that is filled with an electrolyte; a collector that is contained in the outer casing member and provided with an electrode layer which contains an active material and is electrically connected with the collector; an insulating layer that is provided on the collector; and a low potential member that is provided on the insulating layer, has a lower oxidation-reduction potential than the active material of the electrode layer, and has an ability to reduce the active material.

Flat Secondary Battery

A flat secondary battery has a laminate-type power generation element in which two or more plate-like electrodes are laminated via each of separators; and a pair of rectangular exterior members when viewed from a lamination direction of the two or more electrodes, the rectangular exterior members sealing the laminate-type power generation element and an electrolyte solution. At least one exterior member of the pair of the rectangular exterior members comprises: an abutting part including an abutting surface that abuts against an uppermost layer electrode of the two or more electrodes; a sealing part at which the rectangular exterior members overlap each other at an outer circumferential position of the rectangular exterior members; and an extending part that extends from the abutting part to the sealing part, and the flat secondary battery satisfies: 2. (canceled)4. The flat lithium ion secondary battery according to claim 1 ,wherein the extending part includes a first extending part that extends from an end part of the abutting part and a second extending part that is inclined to the abutting surface between the first extending part and the sealing part, anda length of the first extending part in the cross section decreases as the d increases due to use of the flat secondary battery.5. (canceled)6. (canceled) This application claims priority to Japanese Patent Application No. 2014-082376, filed on Apr. 11, 2014, incorporated herein by reference.The present invention relates to a flat secondary battery.JP 2001-297748A discloses a nonaqueous electrolyte secondary battery comprising a flat battery element, a bag-like exterior case which houses the flat battery element, a positive electrode lead which is led out from a sealing part of the exterior case, and a negative electrode lead which is led out from the sealing part of the exterior case. The flat battery element is configured such that sheet-like or film-like positive electrode plates, separators for holding ...

Flat Secondary Battery

A flat secondary battery has a laminate-type power generation element in which two or more plate-like electrodes are laminated via separators; and a pair of rectangular exterior members defined by long sides and short sides when viewed from a lamination direction of the two or more electrodes that seal the power generation element and an electrolyte solution. At least one exterior member of the pair of the rectangular exterior members comprises: an abutting part including an abutting surface that abuts against an uppermost layer electrode of the two or more electrodes; a sealing part at which the rectangular exterior members overlap each other at an outer circumferential position of the rectangular exterior members; and an extending part that extends from the abutting part to the sealing part, and the flat secondary battery satisfies 1≦LA/LB≦2. 1. A flat lithium ion secondary battery comprising:a laminate-type power generation element in which two or more positive electrode plates and negative electrode plates are laminated via each of separators; anda pair of rectangular exterior members defined by long sides and short sides when viewed from a lamination direction of the two or more positive electrode plates and negative electrode plates, the rectangular exterior members sealing the laminate-type power generation element and an electrolyte solution, wherein an abutting part including an abutting surface that abuts against an uppermost layer electrode of the positive electrode plates and negative electrode plates;', 'a sealing part at which the rectangular exterior members overlap each other at an outer circumferential position of the rectangular exterior members; and', 'an extending part that extends from the abutting part to the sealing part', 'the positive electrode plate includes an NMC composite oxide and polyvinylidene fluoride,', 'the negative electrode plate includes a mixture of graphite and polyvinylidene fluoride or a mixture of graphite and styrene- ...

Lithium ion secondary battery, battery capacity recovery apparatus, and battery capacity recovery method

A lithium ion secondary battery includes: an outer covering material that is filled with an electrolyte; a collector that is housed in the outer covering material, formed with an electrode layer containing an active material, and electrically connected with the electrode layer; an insulation layer that is provided on the collector; and a low potential member that is provided on the insulation layer, has a lower oxidation reduction potential than the active material of the electrode layer, and possesses a reduction ability relative to the active material.

SECONDARY CELL ELECTRODE AND FABRICATION METHOD, AND SECONDARY CELL, COMPLEX CELL, AND VEHICLE

In a nonaqueous electrolyte cell-oriented electrode (), an electrode active material layer () formed on a collector () has a density gradient developed with a gradient of a varied concentration of a solid along a thickness from a surface of the electrode active material layer () toward the collector (), and in a gel electrolyte cell-oriented electrode (), an electrode active material layer () formed on a collector () has a density gradient developed with (a) gradient(s) of (a) varied concentration(s) of one or both of an electrolyte salt and a film forming material along a thickness from a surface of the electrode active material layer () toward the collector (). 1. A fabrication method of an electrode for a gel secondary cell comprising an electrode active material layer having a density gradient , comprising:(a) changing a quantity of an electrolyte salt to be added to compose the electrode active material layer, thereby preparing a plurality of kinds of electrode slurry different in concentration of the electrolyte salt; and(b) coating a collector with the plurality of kinds of electrode slurry so that the density gradient is developed with a gradient of a concentration of the electrolyte salt from a surface of the electrode active material layer toward the collector, thereby laminating a plurality of thin film layers different in concentration of the electrolyte salt.2. The fabrication method as claimed in claim 1 , wherein a thin film layer is coated by a thickness within a range of 1-100 μm in the step (b).3. The fabrication method as claimed in claim 1 , wherein the electrode slurry is coated onto the collector by an ink jet method in the step (b).4. The fabrication method as claimed in claim 3 , wherein the ink jet method employs a piezo system. The present application is a divisional of U.S. application Ser. No. 12/400,523, filed Mar. 9, 2009, which is a divisional of U.S. application Ser. No. 10/565,171, filed Jan. 19, 2006, now abandoned, which is the ...

FLAT TYPE BATTERY

A flat type battery includes an exterior member housing an electrolytic solution and a power generating element. The power generating element contains electrodes alternating layered between electrolyte layers, and expands with use in a layering direction of the electrodes. The exterior member forms a tightly sealed space in which the power generating element is housed, and in which an extra space is formed between the exterior member and a side surface extending along the layering direction of the power generating element. The exterior member includes a volume adjustment portion allowing for an increase in the volume of the extra space by expanding in response to a pressure rise inside the tightly sealed space while the exterior member is being pressed against the surfaces intersecting the layering direction of the power generating element due to a pressure difference between the exterior and the interior. 1. A flat type battery comprising:an electrolytic solution;a power generating element that contains electrolyte layers and a plurality of electrodes layered with each of the electrolyte layers therebetween, and that expands with use in a layering direction of the electrodes; andan exterior member forming a tightly sealed space containing a space in which the power generating element is housed, and an extra space formed between the exterior member and a side surface extending along the layering direction of the power generating element,the exterior member including a volume adjustment portion that allows for an increase in a volume of the extra space by expanding in accordance with a pressure rise inside the tightly sealed space while the exterior member is being pressed against surfaces intersecting the layering direction of the power generating element due to a pressure difference between the exterior and the interior,the volume adjustment portion allowing for an increase in the volume of the extra space while maintaining a state in which the exterior member is ...

Laminate cell, assembled battery, battery module and electric vehicle

A laminate cell comprises a power generating element formed by sequentially stacking positive electrode plates and negative electrode plates while interposing separators therebetween; a cell package formed of a metal composite film, the cell package hermetically sealing the power generating element and an electrolyte; a positive tab connected to the positive electrode plates; and a negative tab connected to the negative electrode plates. According to the laminate cell, the power generating element and the cell package have approximately rectangular plane shapes, and the positive tab and the negative tab are drawn outward from end edges of long sides of the cell package.

Laminate packaging flat cell

A laminate packaging flat cell comprises a laminate film formed by combining polymer and metal with each other; a power generating element formed of a plurality of electrode plates and separators, and hermetically sealed by the laminate film; and an electrode terminal lead coupled to the electrode plate. In the laminate packaging flat cell of the present invention, the power generating element is hermetically sealed by forming a thermally welded portion on an outer periphery of the laminate film, and the electrode terminal lead protrudes from the thermally welded portion, and a through-hole is provided in a position thereof contacting the thermally welded portion.

Positive electrode material for lithium ion battery with nonaqueous electrolyte, and battery using the same

Positive electrode material for lithium ion battery with nonaqueous electrolyte, and battery using the same

An object of the present invention is to provide a positive electrode material for non-aqueous electrolyte lithium-ion battery which capable of discharging high output power and inhibiting cracking of secondary particle in the cyclic endurance at a high temperature. The above object can be attained by a positive electrode material for non-aqueous electrolyte lithium-ion battery of the present invention, characterized in that said material comprises secondary particles composed of primary particles of lithium nickel composite oxide containing the primary particles having different aspect ratios, and that at least a part of said primary particles having different aspect ratios are arranged so as to make the longitudinal direction (the long side direction) thereof oriented toward the center of the secondary particle.

Cell electrode

A cell electrode of the present invention has a current collector (11) and an active material layer (13) formed on the current collector (11). The active material layer (13) contains: an active material in which a mean particle diameter is more than 1 µm to 5 µm or less and a BET specific surface area is 1 to 5 m 2 /g; and a conductive material of which content is 3 to 50 mass% with respect to 100 mass% of the active material.

Composite material for positive electrode of lithium battery

Flat type battery

A flat type battery includes an exterior member housing an electrolytic solution and a power generating element. The power generating element contains electrodes alternating layered between electrolyte layers, and expands with use in a layering direction of the electrodes. The exterior member forms a tightly sealed space in which the power generating element is housed, and in which an extra space is formed between the exterior member and a side surface extending along the layering direction of the power generating element. The exterior member includes a volume adjustment portion allowing for an increase in the volume of the extra space by expanding in response to a pressure rise inside the tightly sealed space while the exterior member is being pressed against the surfaces intersecting the layering direction of the power generating element due to a pressure difference between the exterior and the interior.

Production method of cell electrodes

The invention relates to lithium batteries and methods of making bipolar battery electrodes. The invention provides a method of producing bipolar battery electrodes, including providing a collector (1) having a first side and a second side opposite the first side, coating the first side with a first active material (3), coating the second side with a second active material (5), and compressing the coated collector to form a bipolar cell electrode. The invention also provides a method of producing bipolar battery electrodes wherein the first side of the collector is first coated with the first active material (3) and compressed at a first pressure, and subsequently the second side of the collector is coated with the second active material (5) and compressed at a second pressure. The invention further provides an improved bipolar electrode for lithium batteries.

Bipolar Electrode Batteries and Methods of Manufacturing Bipolar Electrode Batteries

The disclosure relates to bipolar cells including electrodes surrounding a collector. Embodiments of the bipolar cells include a collector containing a highpolymer material. The disclosure also relates to bipolar electrode batteries containing bipolar cells including a collector body containing electrically conductive highpolymer or electrically conductive particles distributed in a high-polymer. By adding such high molecular weight polymer material to the collector, the weight of the collector may be reduced and the output power density per weight of the battery may be improved. The disclosure further relates to methods of forming collecting bodies and electrodes for bipolar cells using an inkjet printing method. Bipolar cells according to the present invention may be used to fabricate batteries such as lithium ion batteries, which may be connected to form battery modules used, for example, to provide electrical power for a motor vehicle.

Production method of cell electrodes

The invention relates to fuel cells and methods of making bipolar fuel cell electrodes. The invention provides a method of producing bipolar fuel cell electrodes, including providing a collector having a first side and a second side opposite the first side, coating the first side with a first active material, coating the second side with a second active material, and compressing the coated collector to form a bipolar cell electrode. The invention also provides a method of producing bipolar fuel cell electrodes wherein the first side of the collector is first coated with the first active material and compressed at a first pressure, and subsequently the second side of the collector is coated with the second active material and compressed at a second pressure. The invention further provides an improved bipolar electrode for fuel cells.

Laminate cell, assembled battery, battery module and electric vehicle

A laminate cell comprises a power generating element formed by sequentially stacking positive electrode plates and negative electrode plates while interposing separators therebetween; a positive tab connected to the positive electrode plates through a plurality of positive leads; a negative tab connected to the negative electrode plates through a plurality of negative leads; and a cell package formed of a metal composite film, the cell package hermetically sealing the power generating element and an electrolyte. According to the laminate cell, the heat capacity of a portion of the positive tab, onto which a plurality of the positive leads are joined, and the heat capacity of a portion of the negative tab, onto which a plurality of the negative leads are joined, are made larger than that of other portions of the positive tab and the negative tab.

Positive electrode material for non-aqueous electrolyte lithium ion battery and battery using the same

A positive electrode material for non-aqueous electrolyte lithium ion battery ( 31, 41 ) of the present invention has an oxide ( 11 ) containing lithium and nickel, and a lithium compound ( 13 ) which is deposited on a surface of the oxide ( 11 ) and covers nickel present on the surface of the oxide ( 11 ). By this structure, it is possible to suppress decomposition of an electrolysis solution as much as possible and drastically reduce swelling of the batteries ( 31, 41 ).

Secondary cell electrode and fabrication method, and secondary cell, complex cell, and vehicle

In a nonaqueous electrolyte cell-oriented electrode ( 10 ), an electrode active material layer ( 12 ) formed on a collector ( 1 ) has a density gradient developed with a gradient of a varied concentration of a solid along a thickness from a surface of the electrode active material layer ( 12 ) toward the collector ( 1 ), and in a gel electrolyte cell-oriented electrode ( 30 ), an electrode active material layer ( 32 ) formed on a collector ( 1 ) has a density gradient developed with (a) gradient(s) of (a) varied concentration(s) of one or both of an electrolyte salt and a film forming material along a thickness from a surface of the electrode active material layer ( 32 ) toward the collector ( 1 ).

Flat-type secondary battery

Composite foil, laminate battery and associated method

Lithium-ion battery and method for its manufacture

A lithium ion battery with cell elements includes a cathode, an anode, and an electrolyte layer between the cathode and the anode. The electrolyte layer includes an arrangement of insulating particles with a plurality of interstitial spaces therebetween, with electrolytes occupying at least some of the interstitial spaces.

Polyaniline battery

(57)【要約】 【課題】 通話路系装置の導通試験を行うセル導通試験 方法に関し、サービス品質ＱＣＰの全クラスにわたるセ ル導通試験を行う。 【解決手段】 診断部１０の試験セル発生部６から試験 セルを発生させ、その試験セルを被試験装置を含む経路 に送出してセル導通試験を行う方法に於いて、診断部１ ０は、サービス品質ＱＣＰの高いクラスから順にサービ ス品質ＱＣＰのクラスを設定した試験セルを所定数発生 させて被試験装置に入力し、被試験装置の入側セルカウ ンタ１，１１による試験セルのカウント値と、出側セル カウンタ２，１２による試験セルのカウント値とを、診 断部１０の判定部８に於いて比較判定し、比較一致の場 合は良好、比較不一致の場合は不良と判定する。又セル 導通試験時に、入側セルカウンタ１，１１のカウントが ０の場合、セル導通試験のリトライを行い、リトライ回 数が最大値を越えたときにグッドスキップとする。

laminate sheet, laminate battery and related method

A laminate battery is provided with a tab, an electric power generating element connected to the tab, and a laminate sheet allowing the electric power generating element to be accommodated. The laminate sheet includes a metallic layer and a thermally welding resin layer laminated on the metallic layer. The tab and the thermally welding resin layer are welded by permitting a thermally welding area, which is formed in at least one of the thermally welding resin layer and the tab, and the other of the thermally welding resin layer and the tab to be welded to one another.

Burned composite metal oxide and process for producing the same

Sintered lithium complex oxide

A sintered lithium complex oxide characterized in that the sintered lithium complex oxide is constituted by sintering fine particles of a lithium complex oxide, the peak pore size giving the maximum differential pore volume is 0.80-5.00 µm, the total pore volume is 0.10-2.00 mL/g, the average particle size is not less than the above-specified peak pore size but not more than 20 µm, there is a sub-peak giving a differential pore volume not less than 10% of the maximum differential pore volume on the smaller pore size side with respect to the above-specified peak pore size, the pore size corresponding to the sub-peak is more than 0.50 µm but not more than 2.00 µm, the BET specific surface area of the sintered lithium complex oxide is 1.0-10.0 m 2 /g, and the half width of the maximum peak among X-ray diffraction peaks in an X-raydiffraction measurement is 0.12-0.30 deg.

Electrode for Use in a Battery

An electrode and method for preparing the same in which droplets of a first electrode ink composition and droplets of a second electrode ink composition are ejected from an ink jet device onto a base material and the first electrode ink composition contains at least one electrode active material and the second electrode ink composition contains at least one binder material. The resulting electrode is suitable for use in a battery.

Secondary cell electrode and fabrication method, and secondary cell, complex cell, and vehicle

走査透過電子顕微鏡

【課題】２つの検出器を移動させることなく、２つの検出器を用いて試料を透過した電子線を検出可能な走査透過電子顕微鏡を提供する。【解決手段】走査透過電子顕微鏡１００は、電子線を放出する電子源と、電子線を集束して試料に照射する照射レンズ系１１と、電子線で試料を走査するための第１偏向器１２と、試料Ｓを透過した電子線を偏向する第２偏向器１５と、試料Ｓを透過した電子線を検出する第１検出器２０と、試料Ｓを透過した電子線を検出する第２検出器３０と、を含み、第２偏向器１５は、電子線が第１検出器２０に入射する第１状態と、電子線が第２検出器３０に入射する第２状態と、を切り替える。【選択図】図３

Charged Particle Beam System and Control Method Therefor

Provided is a charged particle beam system capable of scanning a sample in a short time. The charged particle beam system is operative to scan the sample with a charged particle beam and to obtain a scanned image, and includes a magnetic deflector for producing a magnetic field to deflect the beam, an electrostatic deflector for producing an electric field to deflect the beam, and a controller for controlling both magnetic deflector and electrostatic deflector. The controller causes the magnetic deflector to deflect the beam in a first direction and to draw a first scan line, causes the magnetic deflector to deflect the beam in a second direction perpendicular to the first direction, causes the electrostatic deflector to deflect the beam in a third direction opposite to the first direction, and causes the magnetic deflector to deflect the beam in the first direction and to draw a second scan line.

Electrode for use in a battery and method of making the same

An electrode and method for preparing the same in which droplets of a first electrode ink composition and droplets of a second electrode ink composition are ejected from an ink jet device onto a base material and the first electrode ink composition contains at least one electrode active material and the second electrode ink composition contains at least one binder material. The resulting electrode is suitable for use in a battery.

Charged particle beam system and control method therefor

There is provided a charged particle beam system capable of scanning a sample in a short time. The charged particle beam system (100) is operative to scan the sample (S) with a charged particle beam and to obtain a scanned image, and includes a magnetic deflector (30) for producing a magnetic field to deflect the beam, an electrostatic deflector (40) for producing an electric field to deflect the beam, and a controller (80) for controlling both magnetic deflector (30) and electrostatic deflector (40). The controller (80) (i) causes the magnetic deflector (30) to deflect the beam in a first direction and to draw a first scan line (LI), (ii) causes the magnetic deflector (30) to deflect the beam in a second direction perpendicular to the first direction, (iii) causes the electrostatic deflector (40) to deflect the beam in a third direction opposite to the first direction, and (iv) causes the magnetic deflector (30) to deflect the beam in the first direction and to draw a second scan line (L2).

荷電粒子線装置および荷電粒子線装置の制御方法

【課題】短時間で試料を走査できる荷電粒子線装置を提供する。【解決手段】荷電粒子線で試料を走査し、走査像を取得する荷電粒子線装置であって、磁界を発生させて荷電粒子線を偏向する磁界偏向器と、電界を発生させて荷電粒子線を偏向する静電偏向器と、磁界偏向器および静電偏向器を制御する制御部と、を含み、制御部は、磁界偏向器に荷電粒子線を第１方向に偏向させて第１走査線を引き、磁界偏向器に荷電粒子線を第１方向と直交する第２方向に偏向させ、静電偏向器に荷電粒子線を第１方向とは反対方向の第３方向に偏向させ、磁界偏向器に荷電粒子線を第１方向に偏向させて第２走査線を引く。【選択図】図３

電子顕微鏡およびドリフト補正方法

【課題】試料ドリフトの影響を低減できる電子顕微鏡およびドリフト補正方法を提供する。【解決手段】電子顕微鏡１００は、電子プローブで試料を走査するための走査コイル１３と、対物レンズ１４と、走査コイル１３および対物レンズ１４を制御する制御部２０と、を含み、制御部２０は、試料ドリフトによる電子プローブのフォーカス面と試料面との間の傾きのずれを補正する処理を行う。【選択図】図１

Drive system

In a vehicle drive system including a motor and a secondary battery, the motor and secondary battery are integrated to provide a drive system having good mountability. In a gap between a cylindrical outer housing (116) and a rotor (112), a layered cylindrical secondary battery is provided within the outer housing. A cylindrical cooling member (180) is further arranged between the rotor and secondary battery.

駆動システム

　モータと二次電池を有する車両の駆動システムにおいて、モータと二次電池を一体化することにより、良好な搭載性を有する駆動システムを提供する。モータ（１１０）の円筒状外部ハウジング（１１６）とロータ(１１２)との間隙に、積層状の円筒状二次電池を外部ハウジングの内部に配設する。ロータと二次電池の間にさらに円筒状の冷却部材（１８０）を配設する。

Nonaqueous electrolyte cell and its manufacturing method, and positive electrode active material and its manufacturing method

The present invention relates to a nonaqueous electrolyte battery comprising: a cathode including a positive active material; an negative including a negative active material and a nonaqueous electrolyte, wherein assuming that the first charging capacity of the positive active material per gram is Cc [mAh/g], the weight of the positive active material is Cw [g], the first charging capacity of the negative active material per gram is Ac [mAh/g], the first discharging capacity is Ad [mAh/g] and the weight of the negative active material is Aw [g], the value of X [%] represented by a formula 16 is located within a range expressed by 20≦X≦50. ( Ac - Ad ) × Aw Cc × Cw × 100 = X ( formula     16 ) Thus, the deterioration of a capacity due to charging and discharging cycles is suppressed.