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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 4276. Отображено 100.
12-04-2012 дата публикации

Electrode for molten salt battery, molten salt battery, and method for producing electrode

Номер: US20120088139A1
Автор: Atsushi Fukunaga, Koji Nitta, Masatoshi Majima, Shinji Inazawa, Syoichiro Sakai
Принадлежит: Sumitomo Electric Industries Ltd

An electrode for a molten salt battery includes a current collector connectable to an electrode terminal of the molten salt battery and an active material. The current collector has an internal space in which small spaces are mutually coupled. The internal space of the current collector is filled with the active material.

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Номер записи: 1
31-05-2012 дата публикации

Method for manufacturing a gasket

Номер: US20120131793A1
Автор: David Hock, Lars Fredriksson, Neil H. Puester
Принадлежит: Nilar International AB

A gasket for a bipolar battery comprises a structural part in the shape of a frame having an upper surface and a lower surface, and at least one channel to permit gas passage through the gasket. The structural part may be made from a first material having hydrophobic properties. The gasket further comprises at least a first sealing surface arranged in a closed loop projecting from the upper surface, and at least a second sealing surface arranged in a closed loop projecting from the lower surface. The first and the second sealing surfaces are provided on at least one sealing part, are made from a second material, and the first material of the structural part has a higher elastic modulus than an elastic modulus of the second material of the sealing parts. A bipolar battery and a method for manufacturing a gasket are also disclosed.

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Номер записи: 2
30-05-2013 дата публикации

ALKALINE SECONDARY BATTERY AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE MATERIAL FOR ALKALINE SECONDARY BATTERY

Номер: US20130136992A1
Автор: Kakeya Tadashi, Kanemoto Manabu, Morishita Masanori
Принадлежит: GS Yuasa International Ltd.

An alkaline secondary battery includes a positive electrode containing a positive electrode material having nickel hydroxide, a cobalt-cerium compound containing cobalt and cerium, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium. Further, the positive electrode material is prepared by powder mixing nicked hydroxide particles, a cobalt-cerium compound, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium. 1. An alkaline secondary battery provided with a positive electrode , a negative electrode , an electrolytic solution and a separator , comprising a positive electrode containing a positive electrode material having nickel hydroxide , a cobalt-cerium compound , and a compound with at least one element of calcium , yttrium , europium , holmium , erbium , thulium , ytterbium and lutetium.2. The alkaline secondary battery according to claim 1 , whereinthe nickel hydroxide is formed in a particulate form,the cobalt-cerium compound is arranged to be in a state of coating the surface of the nickel hydroxide in a particulate form, andthe compound with at least one element of thulium, ytterbium and lutetium is arranged to be in a state of being dispersed inside the nickel hydroxide in a particulate form.3. The alkaline secondary battery according to claim 1 , whereinthe positive electrode containing a positive electrode material having nickel hydroxide, a cobalt-cerium compound, and a calcium compound is provided, andthe mixing proportion of the calcium compound is set to 0.1% by mass or more in terms of the abundance ratio of the calcium element relative to the total of the nickel hydroxide, the cobalt-cerium compound, and the calcium compound.4. The alkaline secondary battery according to claim 1 , whereinthe positive electrode containing a positive electrode material having nickel hydroxide, a cobalt-cerium compound, and a compound ...

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Номер записи: 3
20-06-2013 дата публикации

Rechargeable alkali metal-air battery

Номер: US20130157149A1
Автор: Diana Golodnitsky, Emanuel Peled, Hadar Mazor-Shafir, Meital Goor Dar, Shlomo Avshalomov
Принадлежит: Ramot at Tel Aviv University Ltd

An energy storage cell ( 20 ) including: an anode ( 40 ) formed of a molten alkali metal; an air cathode ( 60 ); and an electrolyte medium ( 50 ) located between the anode and cathode.

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Номер записи: 4
04-07-2013 дата публикации

MOLTEN SALT BATTERY

Номер: US20130171513A1
Автор: FUKUNAGA Atsushi, Inazawa Shinji, Majima Masatoshi, Nitta Koji, Sakai Shoichiro, YAMAGUCHI Atsushi
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided is a molten salt battery whose cycle life is improved by using an electrolyte that is unlikely to cause corrosion of aluminum. In the molten salt battery of the present invention, the total concentration of iron ions and nickel ions contained as impurities in the electrolyte composed of a molten salt is set to be 0.1% by weight or less, preferably 0.01% by weight or less. Because of the low total concentration of iron ions and nickel ions contained in the electrolyte, corrosion of the electrode current collector composed of aluminum is inhibited, and the cycle life of the molten salt battery is improved. 1. A molten salt battery comprising an electrode current collector composed of aluminum , and a molten salt used as an electrolyte , the molten salt battery being characterized in that the total concentration of iron ions and nickel ions contained in the electrolyte is 0.1% by weight or less.2. The molten salt battery according to claim 1 , characterized in that the total concentration of iron ions and nickel ions contained in the electrolyte is 0.05% by weight or less.3. The molten salt battery according to claim 2 , characterized in that the total concentration of iron ions and nickel ions contained in the electrolyte is 0.01% by weight or less. The present invention relates to a molten salt battery which uses a molten salt as an electrolyte.In recent years, the use of natural energy, such as sunlight or wind power, has been increasing. When electricity is generated using natural energy, the amount of electricity generated tends to vary. Accordingly, in order to supply electric power generated, it is necessary to level the power supply by charging/discharging using a storage battery. Therefore, in order to promote the use of natural energy, storage batteries with high energy density and high efficiency are absolutely necessary. One example of such storage batteries is a sodium-sulfur battery disclosed in PTL 1. Other examples of storage batteries with ...

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Номер записи: 5
08-08-2013 дата публикации

MOLTEN SALT BATTERY

Номер: US20130202942A1
Автор: FUKUNAGA Atsushi, Inazawa Shinji, Majima Masatoshi, Nitta Koji, Sakai Shoichiro, YAMAGUCHI Atsushi
Принадлежит: Sumitomo Electric Industries, Ltd.

A molten-salt battery is provided with rectangular plate-like negative electrodes () and rectangular plate-like positive electrodes () each housed in a bag-shaped separator (). The negative electrodes () and positive electrodes () are arranged laterally and alternately in a standing manner. A lower end of a rectangular tab () for collecting current is joined to an upper end of each negative electrode () close to a side wall (A) of a container body (). The upper ends of the tabs () are joined to the lower surface of a rectangular plate-like tab lead (). A lower end of a rectangular tab () for collecting current is joined to an upper end of each positive electrode () close to a side wall (B) of the container body (). The upper ends of the tabs () are joined to the lower surface of a rectangular plate-like tab lead (). 1. A molten-salt battery comprising:a positive electrode and a negative electrode; anda separator containing a molten salt and provided between the positive electrode and the negative electrode, whereineach of the separator, the positive electrode, and the negative electrode is part of a plurality of separators, a plurality of positive electrodes, and a plurality of negative electrodes, respectively,the positive electrodes and the negative electrodes are stacked alternately, andthe positive electrodes are connected in parallel to each other and the negative electrodes are connected in parallel to each other.2. The molten-salt battery according to claim 1 , wherein the positive electrodes each have a thickness of 0.1 mm to 5 mm.3. The molten-salt battery according to claim 1 , wherein the positive electrodes each have a thickness of 0.5 mm to 2 mm.4. The molten-salt battery according to claim 1 , wherein the separators are each formed in a bag-like shape and house one of the positive electrodes therein.5. The molten-salt battery according to claim 1 , further comprising:a battery container housing the separators, the positive electrodes, and the negative ...

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Номер записи: 6
22-08-2013 дата публикации

HYDROGEN STORAGE ALLOY, ELECTRODE, NICKEL-METAL HYDRIDE RECHARGEABLE BATTERY AND METHOD FOR PRODUCING HYDROGEN STORAGE ALLOY

Номер: US20130213532A1
Автор: Kanemoto Manabu, Kodama Mitsuhiro, Okuda Daisuke
Принадлежит: GS Yuasa International Ltd.

A hydrogen storage alloy with at least two phases containing La, Ni, and Y or a heavy rare earth element, including a first phase having a composition represented by the general formula R1R2R3NiR4(wherein R1 is at least one element essentially containing La, R2 is at least one element selected from the group consisting of Y and a heavy rare earth element, R3 is Ca and/or Mg, R4 is at least one element selected from the group consisting of Co, Mn and Al, and a, b, c, d and e are numerical values that satisfy the numerical expressions a+b+c=1, 0≦b≦0.3, 0≦c≦0.4, 3.0 Подробнее

Номер записи: 7
22-08-2013 дата публикации

CATHODE

Номер: US20130216901A1
Автор: Adanson George W., Ortega Jeff, Zhou Hongxia
Принадлежит: ZPower, LLC

The present invention provides novel cathodes having a reduced resistivity and other improved electrical properties. Furthermore, this invention also presents methods of manufacturing novel electrochemical cells and novel cathodes. These novel cathodes comprise a silver material that is doped with a high valence early transition metal species 1. A cathode for use in an electrochemical cell comprisinga silver material that is doped with a high valence dopant to give a doped silver material, wherein the dopant is present in a concentration of from about 0.01 mol % to about 10 mol %.2. (canceled)3. (canceled)4. The cathode of claim 1 , wherein the doped silver material comprises a powder.5. The cathode of claim 4 , wherein the powder has a mean particle diameter of about 20 μm or less.6. (canceled)7. The cathode of claim 5 , wherein the silver material comprises Ag claim 5 , AgO claim 5 , AgO claim 5 , AgO claim 5 , AgO claim 5 , AgOH claim 5 , AgOOH claim 5 , AgONa claim 5 , AgOK claim 5 , AgOLi claim 5 , AgORb claim 5 , AgOONa claim 5 , AgOOK claim 5 , AgOOLi claim 5 , AgOORb claim 5 , AgCuO claim 5 , AgFeO claim 5 , AgMnO claim 5 , Ag(OH) claim 5 , FeO claim 5 , AgFeO claim 5 , AgFeO claim 5 , or any combination thereof.8. (canceled)9. (canceled)10. (canceled)11. The cathode of claim 1 , wherein the high valence dopant comprises Nb claim 1 , Mn claim 1 , Re claim 1 , V claim 1 , Ta claim 1 , W claim 1 , Mo claim 1 , Cr claim 1 , Fe claim 1 , or any combination thereof.12. The cathode of claim 11 , wherein the high valence dopant comprises an oxide or a hydroxide of Nb claim 11 , Mn claim 11 , Re claim 11 , V claim 11 , Ta claim 11 , W claim 11 , Mo claim 11 , Cr claim 11 , Fe claim 11 , or any combination thereof.13. The cathode of claim 11 , wherein the high valence dopant comprises an acetate claim 11 , a formate claim 11 , a sulfide claim 11 , a sulfate claim 11 , a nitrate claim 11 , a nitride claim 11 , an amide claim 11 , a hydroxide claim 11 , a perchlorate ...

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Номер записи: 8
03-10-2013 дата публикации

Nickel Hydrogen Rechargeable Battery

Номер: US20130260216A1
Автор: Masaaki Takei, Masaru Takasu, Takeshi Ito, Tetsuya Yemane, Yuzo Imoto
Принадлежит: FDK Twicell Co Ltd

A nickel hydrogen rechargeable battery contains an electrode group made up of positive and negative electrode put together with a separator intervening therebetween. The positive electrode includes positive-electrode active material particles each having a base particle composed mainly of nickel hydroxide and a conductive layer that covers the surface of the base particle and is made from a Co compound containing Li. The negative electrode includes a rare earth-Mg—Ni-based hydrogen storage alloy containing a rare-earth element, Mg and Ni. The total amount of Li contained in the battery is in a range of from 15 to 50 (mg/Ah) on the condition that the Li is converted into LiOH, and that the total amount of Li is found as a mass per Ah of positive electrode capacity.

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Номер записи: 9
24-10-2013 дата публикации

ALKALINE SECONDARY BATTERY

Номер: US20130280602A1
Автор: Kakeya Tadashi, Kanemoto Manabu, Kodama Mitsuhiro
Принадлежит: GS Yuasa International Ltd.

An alkaline secondary battery includes a positive electrode having active material particles principally made of nickel hydroxide, a negative electrode, and an electrolyte solution. The positive active material particle has a core layer containing nickel hydroxide and a conductive auxiliary layer which coats the surface of the core layer. The conductive auxiliary layer contains a cobalt oxyhydroxide phase and a cerium dioxide phase. The electrolyte solution is principally made of an aqueous sodium hydroxide solution. 1the positive active material particle has a core layer containing nickel hydroxide and a conductive auxiliary layer which coats the surface of the core layer,the conductive auxiliary layer contains a cobalt oxyhydroxide phase and a cerium dioxide phase, andthe electrolyte solution is principally made of an aqueous sodium hydroxide solution.. An alkaline secondary battery comprising a positive electrode having active material particles principally made of nickel hydroxide, a negative electrode, and an electrolyte solution, wherein The present invention relates to an alkaline secondary battery, and particularly to an alkaline secondary battery having an unsintered positive electrode.As a battery having a high energy density and excellent reliability, a nickel-metal hydride rechargeable battery, particularly, one which is provided with an unsintered positive electrode, in which an active material containing nickel hydroxide is filled into a foamed nickel porous body substrate or the like, is used in various uses. Further, in the unsintered positive electrode, since the electric conductivity of nickel hydroxide, which is an active material in a discharged state, is low, cobalt oxyhydroxide (CoOOH) having high electric conductivity is used as an electroconductive additive to increase the active material utilization. In this case, nickel hydroxide particles and cobalt compound particles are mixed for use, or the surface of the nickel hydroxide particle is ...

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Номер записи: 10
21-11-2013 дата публикации

Electrochemical cells, and related energy storage devices

Номер: US20130309544A1
Автор: Benjamin Hale Winkler, Charles Dominic Iacovangelo, Guillermo Daniel Zappi, James Lowe Sudworth, Mohamed Rahmane, Roger Neil Bull
Принадлежит: General Electric Co

An electrochemical cell is presented. The cell includes a housing having an interior surface defining a volume, and an elongated, ion-conducting separator disposed in the volume. The separator usually extends in a vertical direction relative to a base of the housing, so as to define a height dimension of the cell. The separator has a first circumferential surface defining a portion of a first compartment. The cell further includes a shim structure disposed generally parallel to the first circumferential surface of the separator between the interior surface and the first circumferential surface of the separator. The structure includes at least two shims, a first shim and a second shim, that substantially overlap each other. An energy storage device including such an electrochemical cell is also provided.

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Номер записи: 11
05-12-2013 дата публикации

ALKALINE RECHARGEABLE BATTERY

Номер: US20130323578A1
Автор: Imoto Yuzo, Ito Takeshi, Takasu Masaru, TAKEI Masaaki, Yamane Tetsuya
Принадлежит:

An alkaline rechargeable battery comprises an electrode assembly formed of a positive electrode and a negative electrode stacked with a separator interposed between and an alkaline electrolyte, wherein the positive electrode holds a positive electrode mixture containing positive-electrode active material particles, each comprising of a base particle formed primarily of nickel hydroxide, coated with a conducive layer of a Co compound containing Li, and a positive-electrode additive containing aluminum hydroxide, distributed between the positive-electrode active material particles, where the amount U of the positive-electrode additive (in parts by weight) relative to 100 parts by weight of the positive-electrode active material particles satisfies 0.01≦U<1.5, and wherein Li is present within the alkaline rechargeable battery, where the total amount of Li present within the alkaline rechargeable battery, in terms of weight of LiOH per unit positive-electrode capacitance 1 Ah, is between 20 and 30 (mg/Ah). 1. An alkaline rechargeable battery comprising an electrode assembly and an alkaline electrolyte enclosed in a hermetically-sealed container , the electrode assembly being formed of a positive electrode and a negative electrode stacked with a separator interposed between , whereinthe positive electrode holds a positive electrode mixture containing positive-electrode active material particles formed primarily of nickel hydroxide, and a positive-electrode additive distributed between the positive-electrode active material particles, the positive-electrode additive being at least one substance selected from a group consisting of aluminum and aluminum compounds, where the amount U of the positive-electrode additive (in parts by weight) relative to 100 parts by weight of the positive-electrode active material particles satisfies 0.01≦U<1.5, and,Li is present within the alkaline rechargeable battery, where the total amount of Li present within the alkaline rechargeable ...

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Номер записи: 12
23-01-2014 дата публикации

Hybrid Energy Storage Devices Having Sodium

Номер: US20140023903A1
Автор: Kim Jin Yong, Lemmon John P., LI Guosheng, Lu Xiaochuan, Sprenkle Vincent L.
Принадлежит: BATTELLE MEMORIAL INSTITUTE

Sodium energy storage devices employing aspects of both ZEBRA batteries and traditional Na—S batteries can perform better than either battery alone. The hybrid energy storage devices described herein can include a sodium anode, a molten sodium salt catholyte, and a positive electrode that has active species containing sulfur. Additional active species can include a transition metal source and NaCl. As a product of the energy discharge process, NaSforms in which x is less than three. 1. An energy storage device having a negative electrode comprising sodium , the device characterized by a positive electrode having an active species comprising sulfur , by a catholyte comprising a molten sodium salt , by an energy discharge product comprising NaSin which x is less than three , and by a beta-alumina solid electrolyte (BASE) separating the positive and negative electrodes.2. The energy storage device of claim 1 , wherein the energy discharge product comprises NaS.3. The energy storage device of claim 1 , further comprising an energy charge product comprising NaSin which y is greater than or equal to 3.4. The energy storage device of claim 1 , wherein 100% of the active species comprises sulfur.5. The energy storage device of claim 1 , wherein at least 50% of the active species comprises.6. The energy storage device of claim 1 , wherein at least 10% of the active species comprises.7. The energy storage device of claim 1 , wherein the active species further comprises a transition metal source and NaCl.8. The energy storage device of claim 7 , wherein the transition metal source comprises an element selected from the group consisting of Ni claim 7 , Cu claim 7 , Fe claim 7 , Zn claim 7 , Ag claim 7 , Mn claim 7 , Co claim 7 , Ti claim 7 , and combinations thereof.9. The energy storage device of claim 7 , wherein the transition metal source comprises a metal halide selected from the group consisting of NiCl claim 7 , CuCl claim 7 , FeCl claim 7 , ZnCl claim 7 , AgCl claim 7 , ...

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Номер записи: 13
06-02-2014 дата публикации

MOLTEN-SALT ELECTROLYTE BATTERY DEVICE

Номер: US20140038011A1
Автор: FUKUNAGA Atsushi, Inazawa Shinji, Nitta Koji, Sakai Shoichiro
Принадлежит: Sumitomo Electric Industries, Ltd.

Safe molten-salt electrolyte battery device that can quickly decrease the temperature of a molten-salt electrolyte battery when abnormal heat generation occurs in the battery is provided. A molten-salt electrolyte battery device according to the present invention is provided with a molten-salt electrolyte battery which uses a molten-salt electrolyte and includes a temperature detection means which detects the temperature of the molten-salt electrolyte battery, a cooling means which cools the molten-salt electrolyte battery with a cooling medium, and a control means into which a signal from the temperature detection means is inputted and which outputs an operation instruction to the cooling means. When the molten-salt electrolyte battery device is used, in the case where abnormal heat generation occurs in the molten-salt electrolyte battery, the molten-salt electrolyte battery is cooled by the cooling medium, and therefore, the temperature of the battery can be quickly decreased to a safe temperature. 1. A molten-salt electrolyte battery device provided with a molten-salt electrolyte battery which uses a molten-salt electrolyte , characterized by comprising:a temperature detection means which detects the temperature of the molten-salt electrolyte battery;a cooling means which cools the molten-salt electrolyte battery with a cooling medium; anda control means into which a signal from the temperature detection means is inputted and which outputs an operation instruction to the cooling means.2. The molten-salt electrolyte battery device according to claim 1 , characterized in that the device further comprises a heating means which heats the molten-salt electrolyte battery and a heating interception means which shuts off the power of the heating means claim 1 , andthe control means further outputs an operation instruction to the heating interception means.3. The molten-salt electrolyte battery device according to claim 2 , characterized in that the control means outputs ...

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Номер записи: 14
06-02-2014 дата публикации

Battery

Номер: US20140038027A1
Автор: Daisuke Okuda, Hideto Watanabe, Manabu Kanemoto, Mitsuhiro Kodama, Tadashi Kakeya
Принадлежит: GS YUASA INTERNATIONAL LTD

A battery includes: a cylindrical battery case; and an electrode body disposed in the battery case, and including a positive plate, a negative plate, and a separator disposed between the positive plate and the negative plate. A spacer formed of a dense body and an electrolyte storage space storing an electrolyte are provided between the electrode body and the battery case on one end or both ends of the battery case in an axial direction of the electrode body.

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Номер записи: 15
06-03-2014 дата публикации

MOLTEN SALT BATTERY AND METHOD FOR MANUFACTURING MOLTEN SALT BATTERY

Номер: US20140059848A1
Автор: KOBAYASHI Eiichi, Nitta Koji
Принадлежит: Sumitomo Electric Industries, Ltd.

The present invention provides a method for manufacturing a molten salt battery having a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and an electrolyte salt, which is solid at normal temperature. The solid electrolyte salt is retained on a surface of at least one of the positive electrode, the negative electrode, and the separator prior to assembly of the battery. Then, the battery is assembled by housing the positive electrode, the negative electrode, and the separator in a battery case. 1. A method for manufacturing a molten salt battery having a positive electrode , a negative electrode , a separator arranged between the positive electrode and the negative electrode , and an electrolyte salt that is solid at normal temperature , the method comprising:retaining solid electrolyte salt on a surface of at least one of the positive electrode, the negative electrode, and the separator prior to assembly of the battery, andassembling the battery by housing the positive electrode, the negative electrode, and the separator in a battery case.2. The method for manufacturing a molten salt battery according to claim 1 , wherein the retaining solid electrolyte salt on a surface of at least one of the positive electrode claim 1 , the negative electrode claim 1 , and the separator is coating the surface with a powdery electrolyte salt.3. The method for manufacturing a molten salt battery according to claim 1 , wherein the retaining solid electrolyte salt on a surface of at least one of the positive electrode claim 1 , the negative electrode claim 1 , and the separator is heating the solid electrolyte salt to render the electrolyte salt semisolid or liquid and applying the semisolid or liquid electrolyte salt on the surface.4. The method for manufacturing a molten salt battery according to claim 3 , wherein the application is conducted by spraying.5. The method for manufacturing a molten salt battery ...

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Номер записи: 16
06-03-2014 дата публикации

Sodium-Halogen Secondary Cell

Номер: US20140065456A1
Автор: Bhavaraju Sai, Eccelston Alexis, Robins Mathew
Принадлежит: Ceramates, Inc.

A sodium-halogen secondary cell that includes a negative electrode compartment housing a negative, sodium-based electrode and a positive electrode compartment housing a current collector disposed in a liquid positive electrode solution. The liquid positive electrode solution includes a halogen and/or a halide. The cell includes a sodium ion conductive electrolyte membrane that separates the negative electrode from the liquid positive electrode solution. Although in some cases, the negative sodium-based electrode is molten during cell operation, in other cases, the negative electrode includes a sodium electrode or a sodium intercalation carbon electrode that is solid during operation. 1. A sodium-halogen secondary cell , comprising:a negative electrode compartment comprising a negative electrode that comprises sodium, wherein the negative electrode electrochemically oxidizes to release sodium ions during discharge and electrochemically reduces sodium ions to form sodium metal during recharge;a positive electrode compartment comprising a current collector disposed in a liquid positive electrode solution that comprises at least one of a halogen and a halide; anda sodium ion conductive electrolyte membrane that separates the negative electrode from the liquid positive electrode solution.2. The secondary cell of claim 1 , wherein the negative electrode comprises molten sodium metal.3. The secondary cell of claim 1 , wherein the secondary cell is able to operate when a temperature of the negative electrode is below about 150° C.4. The secondary cell of claim 3 , wherein the secondary cell is able to operate when the temperature of the negative electrode is also above about 100° C.5. The secondary cell of claim 1 , wherein the secondary cell is able to operate when a temperature of the negative electrode is below about 250° C.6. The secondary cell of claim 1 , wherein the secondary cell is able to operate when a temperature of the negative electrode is below about 200° C.7 ...

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Номер записи: 17
03-04-2014 дата публикации

MANUFACTURING METHOD FOR MOLTEN SALT BATTERY AND MOLTEN SALT BATTERY

Номер: US20140093757A1
Автор: FUKUNAGA Atsushi, Inazawa Shinji, Nitta Koji, Sakai Shoichiro
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided is a method for manufacturing a molten salt battery. The method includes a housing step (S) for housing a positive electrode, a negative electrode and a separator in a battery container; an injecting step (S) for injecting the molten salt into the battery container while heating the battery container; a closing step (S) for closing the battery container with a closing lid; a heating and drying step (S) for heating the battery container in a vacuum state with a check valve open; and a sealing step (S) for closing the check valve. In summary, the positive electrode, negative electrode, separator and molten salt are heated and dried in a vacuum state. 1. A method for producing a molten salt battery ,the method comprising:a housing step of housing a positive electrode, a negative electrode and a separator in a battery container;an injecting step of injecting a molten salt into the battery container;a closing step of closing the battery container with a closing lid provided with a gas discharge port;a heating and drying step of housing the battery container in a chamber, with the gas discharge port open, and heating the battery container under vacuum in the chamber; anda sealing step of closing the gas discharge port.2. The method for producing a molten salt battery according to claim 1 , further comprising a heating and partial charging step before carrying out the heating and drying step in which the battery container is heated.3. The method for producing a molten salt battery according to claim 1 , wherein{'sub': 2', '2, 'the molten salt contains an anion represented by N(SO—R1)(SO—R2) (R1 and R2 are each independently a fluorine atom or a fluoroalkyl group) and a cation of at least one of an alkali metal and an alkaline earth metal, and'}in the heating and drying step, the molten salt is heated to a temperature that is not lower than the melting point of the molten salt and not higher than the temperature at which the molten salt decomposes.4. The method for ...

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Номер записи: 18
01-01-2015 дата публикации

Sodium metal halide current collector

Номер: US20150004456A1
Автор: Connor Brady, James Lowe Sudworth, Michael Barone, Paul Sudworth, Robert Christie Galloway, Roger Neil Bull
Принадлежит: General Electric Co

Fin-based current collectors provide high performance and cost savings in electrochemical cells. Embodiments of the invention provide a current collector for a sodium-metal halide electrochemical cell having at least one substantially flat and elongated metal fin being electrically conductive and having at least one bend with respect to a dominant longitudinal axis of the current collector. The at least one substantially flat and elongated metal fin is configured to be joined to a metal ring of the electrochemical cell via one of welding or brazing.

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Номер записи: 19
03-01-2019 дата публикации

HIGH CAPACITY CORROSION RESISTANT V-BASED METAL HYDRIDE ELECTRODES FOR RECHARGEABLE METAL HYDRIDE BATTERIES

Номер: US20190006718A1
Автор: EDWARDS Bryce W., FULTZ Brent T., WEADOCK Nicholas J., Yang Heng
Принадлежит: California Institute of Technology

In an aspect, an electrochemical cell comprises: a positive electrode; a negative electrode, said negative electrode having an alloy having a composition comprising V; and an electrolyte; wherein an additive is provided in said electrolyte to form primary vanadate ions upon dissociation of said additive in said electrolyte; and wherein the electrochemical cell is a metal hydride battery. In some embodiments of this aspect, the alloy is configured to sorb hydrogen during charging of said electrochemical cell and desorb hydrogen during discharging of said electrochemical cell. In some embodiments of this aspect, the electrolyte has a pH selected from the range of 13 to 15. 1. An electrochemical cell , the electrochemical cell comprising:a. a positive electrode; 'i. wherein said alloy has a composition comprising V; and', 'b. a negative electrode, said negative electrode having an alloy;'} 'and', 'i. wherein an additive is provided in said electrolyte to form primary vanadate ions upon dissociation of said additive in said electrolyte;'}, 'c. an electrolyte;'}wherein said electrochemical cell is a metal hydride battery.2. An electrochemical cell , the electrochemical cell comprising:a. a positive electrode; 'i. wherein said alloy has a composition comprising V and Cr; and', 'b. a negative electrode, said negative electrode having an alloy that is configured to sorb hydrogen during charging of said electrochemical cell and desorb hydrogen during discharging of said electrochemical cell;'} 'i. wherein an additive is provided in said electrolyte to form primary vanadate ions upon dissociation of said additive in said electrolyte.', 'c. an electrolyte;'}3. An electrochemical cell , the electrochemical cell comprising:a. a positive electrode; 'i. wherein said alloy has a composition comprising V and Cr; and', 'b. a negative electrode, said negative electrode having an alloy that is configured to sorb hydrogen during charging of said electrochemical cell and desorb hydrogen ...

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Номер записи: 20
02-01-2020 дата публикации

HIGH TEMPERATURE BATTERIES

Номер: US20200006813A1
Автор: CHAKRADEO AMARNATH Ashok, HOFACKER Martin
Принадлежит:

The present disclosure discloses a high temperature cell system. The cell system may comprise at least two distinct cathode chambers. The cell system may further comprise a separator having a hollow structure enclosed between a first wall and a second wall, wherein the separator is configured to enable ion transfer between the first wall and the second wall. Further the hollow structure of the separator may define at least one anode chamber. The cell system may comprise a base configured to provide a common sealing to the at least two cathode chambers and the separator at one first end and second end respectively. 1. A high temperature cell system comprising:at least two distinct cathode chambers;a separator having a hollow structure enclosed between a first wall and a second wall, wherein the separator is configured to enable ion transfer between the first wall and the second wall;at least one anode chamber defined by the hollow structure of the separator; anda base providing a common sealing to the at least two cathode chambers and the separator at one first end and second end respectively.2. The high temperature cell system of claim 1 , wherein the separator is made of sodium beta aluminate (Na-β-Aluminate).3. The high temperature cell system of claim 1 , wherein the at least two cathode chamber and the at least one anode chamber are electrically insulated from each other.4. The high temperature cell system of claim 1 , wherein the at least two cathode chambers claim 1 , the separator and the at least one anode are arranged concentrically with one cathode chamber from the at least two cathode forming inner most circle.5. The high temperature cell system of claim 4 , wherein the innermost wall of the separator has a diameter of 5 up to 198 mm.6. The high temperature cell system of claim 4 , wherein the outermost wall of the separator has a diameter of 7 up to 200 mm.7. The high temperature cell system of claim 4 , wherein the separator has a length of 20 up to ...

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Номер записи: 21
08-01-2015 дата публикации

FUEL CELL SYSTEM

Номер: US20150010785A1
Автор: Ogawa Tetsuya
Принадлежит: HONDA MOTOR CO., LTD.

A fuel cell system includes a fuel cell module for generating electrical energy by electrochemical reactions of a fuel gas and an oxygen-containing gas, a condenser for condensing water vapor in an exhaust gas discharged from the fuel cell module by heat exchange between the exhaust gas and a coolant to collect the condensed water and supplying the collected condensed water to the fuel cell module. The condenser includes an air cooling condensing mechanism using the oxygen-containing gas as the coolant. The air cooling condensing mechanism includes a secondary battery for inducing endothermic reaction during charging and inducing exothermic reaction during discharging. 1. A fuel cell system comprising:a fuel cell module for generating electrical energy by electrochemical reactions of a fuel gas and an oxygen-containing gas;a condenser for condensing water vapor in an exhaust gas discharged from the fuel cell module by heat exchange between the exhaust gas and a coolant to collect the condensed water and supplying the collected condensed water to the fuel cell module; anda control device,wherein the condenser includes an air cooling condensing mechanism using the oxygen-containing gas as the coolant;the air cooling condensing mechanism includes a secondary battery for inducing endothermic reaction during charging and inducing exothermic reaction during discharging; andthe control device implements control to use the exhaust gas as a heat medium during charging, and use the oxygen-containing gas as the coolant during discharging to keep a temperature of the secondary battery in a chargeable and dischargeable state.2. The fuel cell system according to claim 1 , further comprising a hot water storage unit for storing hot water claim 1 , wherein the condenser includes a water cooling condensing mechanism using hot water stored in the hot water storage unit as the coolant.3. The fuel cell system according to claim 1 , wherein the secondary battery is a molten salt ...

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Номер записи: 22
08-01-2015 дата публикации

MOLTEN METAL RECHARGEABLE ELECTROCHEMICAL CELL

Номер: US20150010792A1
Автор: Amendola Steven, Sharp-Goldman Stefanie
Принадлежит:

The present invention provides rechargeable electrochemical cells comprising a molten anode, a cathode, and a non-aqueous electrolyte salt, wherein the electrolyte salt is situated between the molten anode and the cathode during the operation of the electrochemical cell, and the molten anode comprises an aluminum material; also provided are batteries comprising a plurality of such rechargeable electrochemical cells and processes for manufacturing such rechargeable electrochemical cells. 2. The electrochemical cell of claim 1 , whereinthe molten anode has a density that is less than the density of the cathode and less than the density of the electrolyte salt; andthe cathode has a density that is greater than the molten anode and greater than the electrolyte salt.3. The electrochemical cell of claim 1 , wherein the molten anode comprises an aluminum material claim 1 , and the aluminum material comprises elemental aluminum or an aluminum alloy.4. The electrochemical cell of claim 1 , wherein the electrochemical cell has an operating temperature of greater than about 500° C.5. The electrochemical cell of claim 1 , wherein the electrochemical cell has an operating temperature of about 800° C. or greater.6. The electrochemical cell of claim 1 , wherein the aluminum material comprises an aluminum alloy claim 1 , and the aluminum alloy comprises aluminum alloyed with iron claim 1 , silicon claim 1 , gallium claim 1 , bismuth claim 1 , cadmium claim 1 , scandium claim 1 , indium claim 1 , lead claim 1 , mercury claim 1 , thallium claim 1 , tin claim 1 , zinc claim 1 , lithium claim 1 , magnesium claim 1 , antimony claim 1 , copper claim 1 , manganese claim 1 , nickel claim 1 , chromium claim 1 , vanadium claim 1 , titanium claim 1 , zirconium claim 1 , or any combination thereof.7. The electrochemical cell of claim 6 , wherein the aluminum alloy comprises aluminum alloyed with a eutectic amount of iron claim 6 , silicon claim 6 , gallium claim 6 , bismuth claim 6 , cadmium ...

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Номер записи: 23
08-01-2015 дата публикации

Nickel-Zinc Battery Assembly and Manufacturing Method Thereof

Номер: US20150010803A1
Автор: He Tailiang, Ma Fuyuan, PAN Weijie, YE Jingrong
Принадлежит: Hangzhou Neucell Energy Co., Ltd.

The present invention discloses a nickel-zinc battery assembly, which is adapted to be used in practice, wherein the nickel-zinc battery assembly comprises a plurality of nickel-zinc batteries, a plurality of diodes and a plurality of connecting sheets, wherein the diodes are stridden across the batteries and electronically connected to the nickel-zinc batteries respectively, and the connecting sheets are provided between every two neighboring batteries respectively, wherein the positive end of the diode is connected to the cathode of the nickel-zinc battery, and the negative end of the diode is connected to the anode of the nickel-zinc battery. Because the nickel-zinc battery assembly of the present invention is able to provide a unidirectional conductivity from the diodes so as to prevent the batteries being damaged such that the batteries having different discharge performances can be assembled to overcome the bad discharge performances and short cycle life resulted from the different batteries having different discharge performances in is the art. 1. A nickel-zinc battery assembly , comprising:a plurality of nickel-zinc batteries,a plurality of diodes; anda plurality of connecting sheets, wherein the diodes are respectively corresponding to the nickel-zinc batteries, and each of the diodes is stridden across and electronically connected to the corresponding nickel-zinc battery, wherein the connecting sheets are provided between every two neighboring batteries respectively, and the positive end of the diode is connected to the cathode of the corresponding nickel-zinc battery, and the negative end of the diode is connected to the anode of the corresponding nickel-zinc battery.2. The nickel-zinc battery assembly claim 1 , as recited in claim 1 , wherein the nickel-zinc batteries are cylindrical nickel-zinc batteries or square nickel-zinc batteries.3. The nickel-zinc battery assembly claim 1 , as recited in claim 1 , wherein the diodes are silicon diodes claim 1 , ...

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Номер записи: 24
14-01-2016 дата публикации

SEALING STRUCTURE FOR SEALED BATTERY, AND SEALED BATTERY

Номер: US20160013460A1
Автор: FUKUNAGA Atsushi, Iwasaki Mizuo, YAMAZAKI Kazunori
Принадлежит:

A sealing structure comprises a sealing plate having an injection hole, and a sealing plug for sealing the injection hole, and the sealing plug has a press-fitted member including an elastic material and press-fitted into the injection hole to block the injection hole, and a plate-shaped holding member for applying pressure to the press-fitted member so that the press-fitted member is held in a state of being press-fitted into the injection hole, the plate-shaped holding member being bonded to the sealing plate. The press-fitted member has a plate-shaped base which has a larger diameter than that of the injection hole and is in contact with the holding member at one principal surface, and a protruding part which is provided so as to protrude from the other principal surface of the base and is inserted into the injection hole. The diameter PD of the protruding part at the boundary with the base is larger than the diameter HD of the holding-member-side first opening of the injection hole, and the diameter PD at the tip portion is smaller than the diameter HD. A gap L is provided between the base and the first opening of the injection hole in a state in which the injection hole is sealed by the sealing plug. 1. A sealing structure of a sealed battery for sealing an injection hole through which an electrolyte is injected into the sealed battery ,the sealing structure comprising a sealing plate having the injection hole, and a sealing plug for sealing the injection hole,wherein the sealing plug has:a press-fitted member including an elastic material and press-fitted into the injection hole to block the injection hole; anda plate-shaped holding member for applying pressure to the press-fitted member so that the press-fitted member is held in a state of being press-fitted into the injection hole, the plate-shaped holding member being bonded to the sealing plate, andwherein the press-fitted member has a plate-shaped base having a larger diameter than that of the injection ...

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Номер записи: 25
11-01-2018 дата публикации

METHOD AND DEVICE FOR REGENERATING NICKEL METAL HYDRIDE BATTERY

Номер: US20180013177A1
Автор: FUKUMA Tamotsu, ITO Shinichiro, KOBA Daisuke, Nakagiri Yasushi
Принадлежит: PRIMEARTH EV ENERGY CO., LTD.

A method for regenerating a nickel metal hydride battery is provided. The nickel metal hydride battery includes a hydrogen absorbing alloy that serves as a negative electrode material and a safety valve that opens when an internal pressure of a battery case is greater than or equal to a predetermined pressure. The method includes connecting a plurality of nickel metal hydride batteries in parallel. Each nickel metal hydride battery is formed by integrating one or more battery cells. The method further includes overcharging the nickel metal hydride batteries by supplying current from a charge unit that is connected in parallel to the nickel metal hydride batteries. The method further includes, when each nickel metal hydride battery is overcharged, restoring a discharge reserve of a negative electrode by releasing at least some of an oxygen gas generated at a positive electrode out of the battery case through the safety valve. 1. A method for regenerating a nickel metal hydride battery , wherein the nickel metal hydride battery includes a hydrogen absorbing alloy that serves as a negative electrode material and a safety valve that opens when an internal pressure of a battery case is greater than or equal to a predetermined pressure , the method comprising:connecting a plurality of nickel metal hydride batteries in parallel, wherein each nickel metal hydride battery is formed by integrating one or more battery cells;overcharging the nickel metal hydride batteries by supplying current from a charge unit that is connected in parallel to the nickel metal hydride batteries; andwhen each nickel metal hydride battery is overcharged, restoring a discharge reserve of a negative electrode of the overcharged nickel metal hydride battery by releasing at least some of an oxygen gas generated at a positive electrode of the overcharged nickel metal hydride battery out of the battery case through the safety valve.2. The method according to claim 1 , wherein the overcharging the ...

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Номер записи: 26
15-01-2015 дата публикации

Voltage-enhanced energy storage devices

Номер: US20150015210A1
Автор: Alex Elliott, Chia-Ying Lee, David J. Bradwell, Denis Tite, Greg A. Thompson, Jianyi Cui, Xingwen Yu
Принадлежит: Ambri Inc

The present disclosure provides an energy storage device comprising at least one electrochemical cell comprising a negative current collector, a negative electrode in electrical communication with the negative current collector, an electrolyte in electrical communication with the negative electrode, a positive electrode in electrical communication with the electrolyte and a positive current collector in electrical communication with the positive electrode. The negative electrode comprises an alkali metal. Upon discharge, the electrolyte provides charged species of the alkali metal. The positive electrode can include a Group IIIA, IVA, VA and VIA of the periodic table of the elements, or a transition metal (e.g., Group 12 element).

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Номер записи: 27
21-01-2016 дата публикации

METHOD FOR RESTORING BATTERY CAPACITY, METHOD FOR RESTORING BATTERY PACK CAPACITY, DEVICE FOR RESTORING BATTERY CAPACITY, AND DEVICE FOR RESTORING BATTERY PACK CAPACITY

Номер: US20160020495A1
Автор: Ichikawa Koichi, KOBA Daisuke, MITSUI Masahiko, TAKAHASHI Yasuhiro, Takeda Sachio
Принадлежит:

This method for restoring battery capacity is provided with an oxygen-generating/exhausting step for charging a nickel-metal-hydride storage battery, causing the generation of oxygen gas in a positive electrode, opening a safety valve device, and discharging at least a portion of the oxygen gas through the safety valve device to the outside of the battery. The battery temperature when starting the step is in the range of −30 to 10° C. and the SOC is in the range of (30-Ta) to 100%, or the battery temperature (Ta) is in the range of 10 to 50° C. and the SOC is in the range of 20-100%. 1. A method for restoring a battery capacity of a nickel-hydride storage battery including a positive electrode , a negative electrode , a turn-back type safety valve device , an aqueous electrolyte by increasing a discharge capacity of the negative electrode , the method including:an oxygen generating and exhausting step of charging the nickel-hydride storage battery to generate oxygen gas from the aqueous electrolyte in the positive electrode and bringing the safety valve device in a valve-open state to release at least part of the generated oxygen gas out of the battery through the safety valve device,wherein a battery temperature Ta at start of the oxygen generating and exhausting step is in a range of −30 to 10° C. and an SOC at the start is in a range of (30-Ta) to 100%, or, the battery temperature Ta at the start is in a range of 10 to 50° C. and the SOC is in a range of 20 to 100%.2. The method for restoring a battery capacity according to claim 1 , wherein the battery temperature Ta at the start of the oxygen generating and exhausting step is in the range of −30 to 10° C. and the SOC at the start is in a range of (40-Ta) to 100% claim 1 , or claim 1 , the battery temperature Ta at the start is in the range of 10 to 50° C. and the SOC at the start is in a range of 30 to 100%.3. A method for restoring a battery-pack capacity of a battery pack including a plurality of the nickel- ...

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Номер записи: 28
19-01-2017 дата публикации

SEALS FOR HIGH TEMPERATURE REACTIVE MATERIAL DEVICES

Номер: US20170018811A1
Автор: Bradwell David J., Cui Jianyi, Deak David S., McNeley Michael J., Modest Zachary T., Nayar Hari, Neltner Brian, Pujari Vimal, Taylor Darrell, Thompson Greg
Принадлежит:

The disclosure provides seals for devices that operate at elevated temperatures and have reactive metal vapors, such as lithium, sodium or magnesium. In some examples, such devices include energy storage devices that may be used within an electrical power grid or as part of a standalone system. The energy storage devices may be charged from an electricity production source for later discharge, such as when there is a demand for electrical energy consumption. 1. A high-temperature device , comprising:a. a container comprising a reactive metal and/or molten salt; and i. a ceramic material exposed to said reactive metal and/or molten salt, wherein the ceramic material is chemically resistant to the reactive metal and/or molten salt at a temperature of at least 100° C.;', 'ii. a metal collar adjacent to said ceramic material; and', 'iii. an active metal braze disposed between the ceramic material and at least one of the metal collar and the container, wherein the active metal braze comprises at least one metal that chemically reduces the ceramic material., 'b. a seal that seals said container from an environment external to said container, said seal comprising2. The device of claim 1 , wherein the ceramic material comprises aluminum nitride (AlN).3. The device of claim 1 , wherein the metal collar is formed from stainless steel or zirconium.4. The device of claim 1 , wherein the active metal braze is an alloy and the metal that chemically reduces the ceramic material is titanium (Ti) or zirconium (Zr).5. The device of claim 1 , wherein the device is a liquid metal battery.67.-. (canceled)8. The device of claim 1 , wherein the reactive metal is an alkali metal or an alkaline earth metal.9. (canceled)10. The device of claim 1 , wherein the reactive metal is a metal vapor or a liquid metal.11. The device of claim 1 , wherein the molten salt is a vapor or a liquid.1214.-. (canceled)15. The device of claim 1 , further comprising an electrical conductor adjacent to said seal ...

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Номер записи: 29
28-01-2016 дата публикации

LAVES PHASE-RELATED BCC METAL HYDRIDE ALLOYS FOR ELECTROCHEMICAL APPLICATIONS

Номер: US20160024620A1
Автор: Wang Lixin, Wong Diana, Young Kwo-hsiung
Принадлежит:

Laves phase-related BCC metal hydride alloys historically have limited electrochemical capabilities. Provided are a new examples of these alloys useful as electrode active materials. Alloys include a composition defined by Formula I: TiVCrM(I) where w+x+y+z=1, 0.1≦w≦0.6, 0.1≦x≦0.6, 0.01≦y≦0.6 and M is selected from the group consisting of B, Al, Si, Sn and one or more transition metals that achieve discharge capacities of 350 mAh/g or greater for cycles of 10 or more. 2. The alloy of having a capacity of 400 milliamperes per gram or greater.3. The alloy of having a capacity of 420 milliamperes per gram or greater.4. The alloy of comprising less than 24% C14 phase.5. The alloy of wherein said metal hydride alloy is predominantly a combination of BCC phase and Laves phase claim 1 , said BCC phase in abundance of greater than 5% and less than 95% claim 1 , said Laves phase in abundance of greater than 5% and less than 95%.6. The alloy of comprising a BCC phase crystallite size of less than 400 angstroms.7. The alloy of comprising a BCC phase crystallite size of less than 200 angstroms.8. The alloy of comprising a B/A ratio of 1.20 to 1.31.9. The alloy of where x/y is from 1 to 3.11. The alloy of where x is 2 claim 10 , 4 claim 10 , 6 claim 10 , 8 claim 10 , 10 or 12.12. The alloy of where x is 2 or 4. This invention was made with government support under contract no. DE-FOA-0000869 and control no. 0869-1630 awarded by United States Department of Energy. The government has certain rights in the invention.This invention relates to alloy materials and methods for their fabrication. In particular, the invention relates to metal hydride alloy materials that are capable of absorbing and desorbing hydrogen. Activated metal hydride alloys with a laves phase-related body centered cubic (BCC) structure are provided that have unique electrochemical properties including high capacity for use in electrochemical applications.Certain metal hydride (MH) alloy materials are capable of ...

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Номер записи: 30
04-02-2016 дата публикации

NICKEL-IRON BATTERY WITH HIGH CYCLE LIFE

Номер: US20160036094A1
Автор: Ogg Randy
Принадлежит:

The present invention provides one with a high cycle life Ni—Fe battery. The battery uses a particular electrolyte. The resulting characteristics of cycle life, as well as power and charge retention, are much improved over conventional Ni—Fe batteries. 1. A battery , comprising:a nickel cathode;an iron anode comprising an iron active material that is metal iron or an iron oxide material and a binder; andan electrolyte comprising 6 to 7.5 M sodium hydroxide, 0.5 to 2.0 M lithium hydroxide, and 1-2 wt % sodium sulfide based on the weight of the electrolyte,with the battery exhibiting a cycle life of at least about 10,000 cycles.2. The battery of claim 1 , further comprising a polyolefin battery separator.3. The battery of claim 1 , which is a sealed battery.4. The battery of claim 1 , wherein the iron anode is comprised of a single layer of a conductive substrate coated on at least one side with a coating comprising the iron active material and the binder.5. The battery of claim 4 , wherein the substrate is coated on both sides.6. The battery of claim 1 , further exhibiting a specific energy of at least about 105 watt hours/kg.7. The battery of claim 1 , further exhibiting an energy density of at least about 183 watt hours/liter.8. The battery of claim 1 , further exhibiting a specific power of at least about 2100 watts/kg.9. The battery of claim 1 , further exhibiting a power density of at least about 3660 watts/liter.10. The battery of claim 1 , further exhibiting a watt hour efficiency of at least about 95%.11. The battery of claim 1 , further exhibiting a charge retention claim 1 , measured as capacity at 28 days 20° C. claim 1 , of at least about 95%.12. The battery of claim 1 , exhibitinga specific energy of at least about 105 watt hours/kg;an energy density of at least about 183 watt hours/liter;a watt hour efficiency of at least about 95%; anda charge retention of at least about 95%.13. The battery of claim 1 , wherein the binder is a polyvinyl alcohol binder. ...

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Номер записи: 31
04-02-2016 дата публикации

NICKEL-IRON BATTERY WITH HIGH POWER

Номер: US20160036095A1
Автор: Ogg Randy
Принадлежит:

The present invention provides one with a Ni—Fe battery exhibiting enhanced power characteristics. The battery uses a particular electrolyte. The resulting characteristics of specific power and power density are much improved over conventional Ni—Fe batteries. 1. A battery , comprising:a nickel cathode;an iron anode comprising an iron active material that is metal iron or an iron oxide material and a binder; andan electrolyte comprising 6 to 7.5 M sodium hydroxide, 0.5 to 2.0 M lithium hydroxide, and 1-2 wt % sodium sulfide based on the weight of the electrolyte,with the battery exhibiting a power density of at least about 3660 watts/liter and a specific power of at least about 2100 watts/kg.2. The battery of claim 1 , further comprising a polyolefin battery separator.3. The battery of claim 1 , which is a sealed battery.4. The battery of claim 1 , wherein the iron anode is comprised of a single layer of a conductive substrate coated on at least one side with a coating comprising the iron active material and the binder.5. The battery of claim 4 , wherein the substrate is coated on both sides.6. The battery of claim 1 , further exhibiting a specific energy of at least about 105 watt hours/kg.7. The battery of claim 1 , further exhibiting an energy density of at least about 183 watt hours/liter.8. The battery of claim 1 , further exhibiting a watt hour efficiency of at least about 95%.9. The battery of claim 1 , further exhibiting a charge retention claim 1 , measured as capacity at 28 days 20° C. claim 1 , of at least about 95%.10. The battery of claim 1 , exhibitinga specific energy of at least about 105 watt hours/kg;an energy density of at least about 183 watt hours/liter;a watt hour efficiency of at least about 95%; anda charge retention of at least about 95%.11. The battery of claim 1 , exhibiting a cycle life of at least about 10 claim 1 ,000 cycles.12. The battery of claim 1 , wherein the binder is a polyvinyl alcohol binder.13. A battery claim 1 , comprising: ...

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Номер записи: 32
01-02-2018 дата публикации

PRINTED SILVER OXIDE BATTERIES

Номер: US20180034067A1
Автор: Gustafson John G., Lockett Vera N., Ray William Johnstone, Salah Yasser
Принадлежит:

An energy storage device, such as a silver oxide battery, can include a silver-containing cathode and an electrolyte having an ionic liquid. An anion of the ionic liquid is selected from the group consisting of: methanesulfonate, methylsulfate, acetate, and fluoroacetate. A cation of the ionic liquid can be selected from the group consisting of: imidazolium, pyridinium, ammonium, piperidinium, pyrrolidinium, sulfonium, and phosphonium. The energy storage device may include a printed or non-printed separator. The printed separator can include a gel including dissolved cellulose powder and the electrolyte. The non-printed separator can include a gel including at least partially dissolved regenerate cellulose and the electrolyte. An energy storage device fabrication process can include applying a plasma treatment to a surface of each of a cathode, anode, separator, and current collectors. The plasma treatment process can improve wettability, adhesion, electron and/or ionic transport across the treated surface. 1. A method of manufacturing an energy storage device , the method comprising:printing a first electrode over a substrate, wherein the first electrode comprises an ionic liquid comprising an anion selected from the group consisting of:methanesulfonate, methylsulfate, acetate, and fluoroacetate.2. The method of claim 1 , wherein the ionic liquid is a basic ionic liquid.3. The method of claim 1 , wherein the ionic liquid comprises a cation selected from the group consisting of: imidazolium claim 1 , pyridinium claim 1 , ammonium claim 1 , piperidinium claim 1 , pyrrolidinium claim 1 , sulfonium claim 1 , and phosphonium.4. The method of claim 3 , wherein the cation comprises at least one of a butyltrimethylammonium claim 3 , 1-ethyl-3-methylimidazolium claim 3 , 1-butyl-3-methylimidazolium claim 3 , 1-methyl-3-propylimidazolium claim 3 , 1-hexyl-3-methylimidazolium claim 3 , choline claim 3 , ethylammonium claim 3 , tributylmethylphosphonium claim 3 , tributyl( ...

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Номер записи: 33
01-02-2018 дата публикации

Current collector design to reduce granule bed disruption

Номер: US20180034110A1
Автор: Grzegorz Maruszak, Paul Sudworth
Принадлежит: General Electric Co

Apparatus and methods to reduce granule disruption during manufacture of electrochemical cells, such as a metal halide electrochemical cell, are provided. In one embodiment, a current collector can include a diffuser strip extending beneath an aperture configured to receive an injection stream of molten electrolyte. The diffuser strip can be configured to dissipate an injection stream of molten electrolyte when the molten electrolyte is injected into an electrochemical cell. In this way, disruption of a granule bed by the injection of the molten electrolyte during manufacture of the electrochemical cell can be reduced.

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Номер записи: 34
17-02-2022 дата публикации

POSITIVE ELECTRODE FOR ALKALI SECONDARY BATTERY, AND ALKALI SECONDARY BATTERY INCLUDING SAID POSITIVE ELECTRODE

Номер: US20220052317A1
Автор: Asanuma Hideyuki, Imoto Yuzo, Kihara Masaru, Tanimoto Yuya, Yamane Tetsuya
Принадлежит:

A battery includes an outer can and an electrode group that is housed in the outer can together with an alkaline electrolytic solution, in which a positive electrode included in the electrode group includes a positive electrode substrate and a positive electrode mixture supported on the positive electrode substrate, the positive electrode mixture includes nickel hydroxide, yttrium oxide serving as a first additive, and niobium oxide or titanium oxide serving as a second additive, a total amount of the first additive and the second additive is 0.1 parts by mass or more and 2.5 parts by mass or less per 100 parts by mass of the nickel hydroxide, a mass ratio of the first additive and the second additive is in a relationship of 1:0.2 to 5, and the positive electrode mixture after an activation treatment has a resistivity of 1 Ω·m or more and 10 Ω·m or less. 1. A positive electrode for an alkali secondary battery , comprising:a positive electrode substrate; anda positive electrode mixture supported on the positive electrode substrate,wherein:the positive electrode mixture comprises nickel hydroxide serving as a positive electrode active material, a positive electrode additive, and a conductive material,the positive electrode additive comprises a first additive and a second additive,a total amount of the first additive and the second additive is 0.1 parts by mass or more and 2.5 parts by mass or less per 100 parts by mass of the nickel hydroxide,a mass ratio of the first additive and the second additive is in a relationship of X:Y=1:0.2 to 5 when a mass of the first additive is X and a mass of the second additive is Y,the positive electrode mixture after an activation treatment has a resistivity of 1 Ω·m or more and 10 Ω·m or less,the nickel hydroxide comprises at least one of nickel oxyhydroxide or nickel hydroxide,the first additive is yttrium oxide, andthe second additive comprises at least one of niobium oxide or titanium oxide.2. The positive electrode for an alkali ...

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Номер записи: 35
17-02-2022 дата публикации

POSITIVE ELECTRODE FOR ALKALI SECONDARY BATTERY AND ALKALI SECONDARY BATTERY INCLUDING SAID POSITIVE ELECTRODE

Номер: US20220052318A1
Автор: Asanuma Hideyuki, Imoto Yuzo, Kihara Masaru, Tanimoto Yuya, Yamane Tetsuya
Принадлежит:

A battery includes an outer can and an electrode group that is housed in the outer can together with an alkaline electrolytic solution, in which a positive electrode included in the electrode group includes a positive electrode substrate and a positive electrode mixture supported on the positive electrode substrate, the positive electrode mixture includes nickel hydroxide and a positive electrode additive, the positive electrode additive includes a titanium oxide particle having an anatase-type crystal structure, the titanium oxide particle has an average primary particle size of 5 nm or more and 10 nm or less and a BET specific surface area of 230 m/g or more and 360 m/g or less, and includes 0.1% by mass or more of niobium, and a rate of addition of the titanium oxide relative to the nickel hydroxide is 0.1% by mass or more and 1.0% by mass or less. 1. A positive electrode for an alkali secondary battery , comprising:a positive electrode substrate; anda positive electrode mixture supported on the positive electrode substrate,whereinthe positive electrode mixture comprises nickel hydroxide as a positive electrode active material, and a positive electrode additive,the positive electrode additive comprises a titanium oxide particle having an anatase-type crystal structure,{'sup': ['2', '2'], '#text': 'the titanium oxide particle has an average primary particle size of 5 nm or more and 10 nm or less and a BET specific surface area of 230 m/g or more and 360 m/g or less, and comprises 0.1% by mass or more of niobium, and'}a rate of addition of the titanium oxide relative to the nickel hydroxide is 0.1% by mass or more and 1.0% by mass or less.2. The positive electrode for an alkali secondary battery according to claim 1 , wherein the titanium oxide has a purity of 90% by mass or more and 95% by mass or less.3. An alkali secondary battery comprising:an outer can; andan electrode group that is housed in the outer can together with an alkaline electrolytic solution, ...

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Номер записи: 36
31-01-2019 дата публикации

CARBON FIBER ZINC NEGATIVE ELECTRODE

Номер: US20190036109A1
Автор: Bose Deepan Chakkaravarthi, Maske Cecilia, Mohanta Samaresh, PHILLIPS Jeffrey
Принадлежит:

The conductivity of a zinc negative electrode is enhanced through use of surfactant-coated carbon fibers. Carbon fibers, along with other active materials such as bismuth oxide, zinc etc., form an electronically conductive matrix in zinc negative electrodes. Zinc negative electrodes as described herein are particularly useful in nickel zinc secondary batteries. 1. A method of fabricating a zinc negative electrode , the method comprising:(i) coating lead and/or tin onto zinc particles comprising at least one of zinc and zinc oxide;(ii) coating carbon particles with a surfactant to make coated carbon particles;(iii) forming a paste from the coated zinc particles, coated carbon particles, bismuth oxide, a dispersing agent, a binding agent, and a liquid; and(iv) incorporating the paste into a zinc electrode.2. The method of claim 1 , wherein the carbon particles are carbon fibers.3. The method of claim 2 , wherein the carbon fibers are metallized.4. The method of claim 3 , wherein the carbon fibers are metallized with at least one of lead claim 3 , tin claim 3 , indium claim 3 , bismuth and silver.5. The method of claim 1 , wherein the coated zinc particles are less than about 40 microns in size.6. The method of claim 4 , wherein the zinc particles are coated with lead and the lead comprises less than about 0.05% by weight of the negative electrode active material.7. The method of claim 2 , wherein the zinc negative electrode is less than 3% by weight of the carbon fiber by dry weight of the zinc negative electrode.8. The method of claim 2 , wherein the carbon fiber is between about 10 μm and 500 μm in length claim 2 , and between about 1 μm and 50 μm in diameter claim 2 , with a ratio of length to width of between about 50:1 and about 10:1.9. The method of claim 2 , wherein the surfactant comprises at least one of a Triton claim 2 , a poloxamer and a fluorosurfactant.10. The method of claim 2 , wherein the liquid comprises at least one of water claim 2 , an alcohol and ...

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Номер записи: 37
04-02-2021 дата публикации

CERAMIC MATERIALS AND SEALS FOR HIGH TEMPERATURE REACTIVE MATERIAL DEVICES

Номер: US20210036273A1
Автор: Bradwell David J., Cocking Jennifer, Fritz James D., Lee Chia-Ying, McCleary David, Pujari Vimal, Thompson Greg
Принадлежит:

The disclosure provides seals for devices that operate at elevated temperatures and have reactive metal vapors, such as lithium, sodium or magnesium. In some examples, such devices include energy storage devices that may be used within an electrical power grid or as part of a standalone system. The energy storage devices may be charged from an electricity production source for later discharge, such as when there is a demand for electrical energy consumption. 1120.-. (canceled)121. An electrochemical cell , comprising:a container comprising a conductor aperture, wherein said container is configured to contain a reactive material at a temperature of at least about 200° C.;a conductor that extends from an environment external to said container through said conductor aperture into said container; anda sealing unit that couples said container to said conductor to seal said conductor aperture, wherein said sealing unit comprises a ceramic component coupled to said container and said conductor, wherein said ceramic component is configured to be exposed to said reactive material while sealing said conductor aperture, and wherein said ceramic component comprises a grain size that is less than or equal to about 50 micrometers (μm).122. The electrochemical cell of claim 121 , wherein said grain size is less than or equal to about 10 μm.123. The electrochemical cell of claim 121 , wherein said ceramic component has a porosity of less than or equal to about 3% by volume.124. The electrochemical cell of claim 121 , wherein said ceramic component is a ring claim 121 , and wherein said ring is disposed around said conductor.125. The electrochemical cell of claim 121 , wherein said ceramic component has one or more beveled edges.126. The electrochemical cell of claim 121 , wherein said sealing unit further comprises a metal sleeve configured to couple said ceramic component to said container or to said conductor.127. The electrochemical cell of claim 126 , wherein said metal sleeve ...

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Номер записи: 38
04-02-2021 дата публикации

MILLING OF RECOVERED NEGATIVE ELECTRODE MATERIAL

Номер: US20210036381A1
Автор: NORÉUS Dag
Принадлежит: Nilar International AB

The present disclosure concerns a method of producing an activated negative electrode powder for use in nickel-metal hydride (NiMH) batteries, the method comprising the steps: a) providing at least one previously cycled NiMH battery; b) isolating a negative electrode powder from the previously cycled NiMH battery; c) wet-milling or milling the negative electrode powder, thereby obtaining a mixture of the activated negative electrode powder and a byproduct rich in rare earth hydroxides; and d) separating the activated negative electrode powder from the byproduct. The disclosure further relates to an activated negative electrode powder produced by the said method, as well as battery electrodes and batteries comprising such a powder. 1. A method of producing an activated negative electrode powder for use in nickel-metal hydride (NiMH) batteries , the method comprising:a) providing at least one previously cycled NiMH battery;b) isolating a negative electrode powder from the previously cycled NiMH battery;c) wet-milling or milling the negative electrode powder, thereby obtaining a mixture of the activated negative electrode powder and a byproduct rich in rare earth hydroxides; andd) separating the activated negative electrode powder from the byproduct.2. A method according to claim 1 , wherein the wet-milling involves ultrasonication claim 1 , ball-milling claim 1 , disc-milling claim 1 , or jet milling.3. A method according to claim 1 , wherein the wet milling is performed for a period of time sufficient to obtain an activated negative electrode powder having a discharge capacity that is at least 80% of a discharge capacity of freshly manufactured negative electrode powder when measured under the same conditions.4. A method according to claim 1 , wherein the previously cycled NiMH battery has undergone from about 1 to about 20 cycles.5. A method according to claim 1 , wherein the previously cycled NiMH battery has undergone from about 21 cycles to about 2000 cycles ...

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Номер записи: 39
11-02-2016 дата публикации

ELECTRODE COMPOSITIONS AND ARTICLES, AND RELATED PROCESSES

Номер: US20160043443A1
Автор: Bartling Brandon Alan, Bogdan, Hart Richard Louis, JR. David Charles, Vallance Michael Alan
Принадлежит:

A positive electrode composition is described, containing granules of at least one electroactive metal, at least one alkali metal halide and carbon black. An energy storage device and an uninterruptable power supply device are also described. Related methods for the preparation of a positive electrode and an energy storage device are also disclosed. 1. A sodium metal halide battery , comprisinga) a positive electrode which itself comprises a conductive matrix of at least one granulated electroactive metal and carbon black; wherein the volume-to-volume ratio of the carbon black to the electroactive metal is between about 10:90 and 30:70, inclusive;b) a negative electrode comprising sodium; andc) a solid alumina separator disposed between the positive electrode and the negative electrode, capable of transporting alkali metal ions between the positive and negative electrodes.2. The battery of claim 1 , wherein the positive electrode further comprises at least one alkali metal halide.3. The battery of claim 1 , wherein the electroactive metal in component (a) is selected from the group consisting of titanium claim 1 , vanadium claim 1 , niobium claim 1 , molybdenum claim 1 , nickel claim 1 , cobalt claim 1 , chromium claim 1 , copper claim 1 , manganese claim 1 , silver claim 1 , antimony claim 1 , cadmium claim 1 , tin claim 1 , lead claim 1 , iron claim 1 , zinc claim 1 , and combinations thereof.4. The battery of claim 1 , wherein the electroactive metal in component (a) comprises a combination of nickel and iron.5. The battery of claim 4 , wherein the electroactive metal comprises at least about 50% by weight nickel.6. The battery of claim 5 , wherein the electroactive metal comprises about 3% by weight to about 15% by weight iron.7. The battery of claim 1 , characterized as being rechargeable over a plurality of cycles.8. A cathode composition claim 1 , comprising granules which themselves comprise at least one electroactive metal claim 1 , at least one alkali ...

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Номер записи: 40
08-02-2018 дата публикации

Electrical Tools, Nickel-Zinc Battery System and Manufacturing Method Therefor

Номер: US20180040871A1
Автор: Ma Fuyuan, PAN Weijie, YE Jingrong
Принадлежит:

The present invention further provides a nickel-zinc battery system used for rechargeable electrical tools. The present invention further provides a method for manufacturing a battery set of the nickel-zinc battery system. A diode of the nickel-zinc battery set manufactured by the method can be hidden in a receiving slot. 181.-. (canceled)82. A nickel-zinc battery system , comprising:at least a battery set; anda battery case accommodating said battery set therewithin, wherein each said battery set has a positive pole and a negative pole, wherein said battery case comprises a casing, a anode interface arranged on said casing, and a cathode interface arranged on said casing, wherein said anode interface of said battery case and said positive pole of said battery set are electrically connected, wherein said cathode interface of said battery case and said negative pole of said battery set are electrically connected, wherein said battery set comprises:a plurality of first nickel-zinc battery cell;a connecting device connecting said first cell nickel-zinc batteries of said battery set in series; anda plurality of first diodes, wherein said first diodes of said battery set respectively correspond to said first nickel-zinc battery cells of said battery set, wherein said connecting device comprises at least a first connecting unit and at least a second connecting unit, wherein said first connecting unit and said second connecting unit are both made of conductive material and said first connecting unit and said second connecting unit of said connecting device are alternately arranged, so as to allow each said second connecting unit to form a first position with the previous adjacent said first connecting unit, a first connecting position subsequent to said first position, a second position with the subsequent adjacent said first connecting unit, and a second connecting position next to said second position, wherein said nickel-zinc battery cells of said battery set are ...

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Номер записи: 41
12-02-2015 дата публикации

Advances in electric car technology

Номер: US20150044549A1
Автор: TUTUNARU Catalin
Принадлежит: H&D Electric, LLC

Systems for improving electric storage batteries and their use for powering vehicles. 1. A system for managing an electrical battery , comprising cells organized into 2 banks;a monitoring system connected to each of said banks and to means for measuring the remaining charge in each of said banks;means for selecting at least one bank from among the available banks as a bank which will provide electric power;means for selecting at least one bank from among the available banks as a bank that will be recharged;means for storing a preselected critical value;means for causing a bank then providing power to be deselected as a bank providing power and selected as a bank to be recharged upon reaching the critical value; andmeans for causing a bank then being recharged to a point above the critical value to be deselected as a bank to be recharged and selected as a bank providing power.2. An enhanced-safety electric battery system comprising:a plurality of cells, battery management, connectors between the cells and an electronic impulse switch.3. An enhanced torque motor comprising a rotor comprising a face plate attached to a spindle , said spindle passing through and free to rotate within a housing , said face plate having a series of magnets uniformly radially embedded therein.4. A Sodium Nickel Chloride (NaNiCl) battery giving a nominal operation cell voltage of 2.58 Volts , having cathodes made from NaAlCl4 (sodium chloroaluminate) and anodes made from BASE (sodium beta alumina electrolyte) and sodium anode with a metal chloride; and an electrolyte comprising a mixture of molten compound comprising approximately 38% sodium chloride , 20% nickel , 4% silver , 16% copper , 18% iron.5. A Sodium Nickel Chloride (NaNiCl) battery as in further comprising titanate substrate. This application claims priority from U.S. provisional application 61/852,482 filed Mar. 15, 2013 which is hereby incorporated by reference.1. Field of the InventionThe present invention relates in general ...

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Номер записи: 42
12-02-2015 дата публикации

POLYMER ELECTROLYTE MEMBRANES FOR RECHARGEABLE BATTERIES

Номер: US20150044574A1
Автор: Cakmak Mukerrem, Qu Cheng
Принадлежит:

An electrolyte membrane for use in a rechargeable battery includes a polymer layer and platelet particles, where the polymer layer is reinforced with a fiber mat, and the polymer layer retains an electrolyte. A rechargeable battery uses the membrane in a position between a positive electrode and negative electrode where the membrane serves as an ion conductor for the battery. 1. An electrolyte membrane for use in a rechargeable battery comprising a polymer layer and platelet particles , wherein the polymer layer is reinforced with a fiber mat , and the polymer layer retains an electrolyte.2. The membrane of claim 1 , wherein the polymer layer is formed from poly(acrylic acid) and the electrolyte is potassium hydroxide.3. The membrane of claim 1 , wherein the fiber mat includes fibers formed of a polymer selected from the group consisting polyvinylidene difluoride and a polyamide produced from m-xylenediamine.4. The membrane of claim 1 , wherein the platelet particles are nanoclay platelet particles.5. The membrane of claim 1 , wherein the platelet particles are dispersed throughout the polymer layer.6. The membrane of claim 1 , further comprising a second polymer layer on the polymer layer reinforced with the fiber mat claim 1 , wherein the platelet particles are in the second polymer layer.7. The membrane of claim 6 , the electrolyte membrane having a thickness claim 6 , wherein the polymer layer makes up from 65% to 80% of the thickness claim 6 , and wherein the second polymer layer makes up the remainder of the thickness.8. The membrane of claim 1 , wherein the polymer layer is formed from poly(acrylic acid) claim 1 , the platelet particles include nanoclay claim 1 , the fiber mat includes fibers of polyvinylidene difluoride claim 1 , and the polymer layer includes from 5 to 15 vol.% fibers and from 1 to 5 vol.% platelet particles.9. The membrane of claim 1 , wherein the polymer layer is formed from poly(acrylic acid) claim 1 , the platelet particles include ...

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Номер записи: 43
25-02-2016 дата публикации

ACCUMULATOR DEVICE

Номер: US20160056495A1
Автор: MINAGATA Atsushi, Okuda Motoaki
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

The electricity storage device includes an electrode assembly, a case, and a holding tape. The electrode assembly further includes a bottom surface, which is supported by an inner bottom surface of the case, two end faces in a lamination direction, which are joined to the bottom face, two side surfaces, which are joined to the bottom surface and intersect with the end surfaces, and two corner sections, which are formed from the bottom surface and the side surfaces. Each corner section includes a chamfered section, and a border section between the chamfered section and the bottom surface. The holding tape covers the border section from the bottom surface in a direction parallel to the bottom surface and orthogonal to the stacking direction, further inward of the electrode assembly than the side surface. 1. An electricity storage device comprising:an electrode assembly including a plurality of positive electrodes, a plurality of negative electrodes, and a plurality of separators, wherein the positive electrodes and the negative electrodes are alternately layered in a lamination direction, and the separators insulate the positive electrodes from the adjacent negative electrodes;a case, which includes an inner bottom surface and accommodates the electrode assembly;an insulative layer located between the electrode assembly and the case; andholding tape, which holds the positive electrodes, the negative electrodes, and the separators together, whereinthe electrode assembly includes a bottom surface, which is supported by the inner bottom surface of the case, two end surfaces in the lamination direction, which are connected to the bottom surface, two side surfaces, which are connected to the bottom surface and intersect with the end surfaces, and two corner sections formed by the bottom surface and the side surfaces,each corner section includes a chamfered section and a border section between the chamfered section and the bottom surface, andon an inner side of the side ...

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Номер записи: 44
14-02-2019 дата публикации

FLEXIBLE SEALED ACCUMULATOR CELL, ACCUMULATOR MODULE, AND ACCUMULATOR PACK

Номер: US20190051869A1
Автор: TAKAGI Hidetaka
Принадлежит: YAMAHA HATSUDOKI KABUSHIKI KAISHA

A flexible sealed accumulator cell is capable of suppressing or reducing occurrence of a failure which may otherwise be caused by overcharge or overdischarge, with a configuration that is easy to manufacture and assemble. The flexible sealed accumulator cell includes a flexible protective member having a flexibility and including a flexible inner portion having a flexibility and a flexible flared portion having a flexibility. The flexible inner portion is located between an external connector portion and a portion of a lead-out terminal joined to a closure part with respect to an extending-out direction of the lead-out terminal. The flexible inner portion covers first and second surfaces of the lead-out terminal in a width direction of the lead-out terminal, the flexible flared portion flaring from the flexible inner portion at least in a thickness direction of the lead-out terminal. 1. A flexible sealed accumulator cell that is used in a state of being stored in a casing so as to allow power supply from or to outside of the casing , the flexible sealed accumulator cell comprising:a positive electrode and a negative electrode;a separator disposed between the positive electrode and the negative electrode;an electrolyte;a flexible storage member having a flexibility, the flexible storage member including a storage part and a closure part, the storage part storing the positive electrode, the negative electrode, and the separator as well as the electrolyte, the closure part being provided in at least a part of an outer periphery of the storage part, for sealing the storage part;lead-out terminals each having a plate-like shape, the lead-out terminals being extended out from the flexible storage member so as to be partially exposed from the closure part to outside of the flexible storage member, the lead-out terminals being joined to the flexible storage member in the closure part, each of the lead-out terminals being connected to one of the positive electrode or the ...

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Номер записи: 45
23-02-2017 дата публикации

Nickel hydrogen battery

Номер: US20170054151A1
Автор: Hideki Nakayama
Принадлежит: Toyota Motor Corp

A nickel hydrogen battery configured to suppress a decrease in battery voltage. The battery comprises a cathode containing a cathode active material, an anode containing an anode active material, and an electrolyte layer in contact with the cathode and the anode. The cathode active material contains H 2 NiP 2 O 7 having a crystal structure including at least one NiO 6 octahedron and at least one PO 4 tetrahedron.

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Номер записи: 46
05-03-2015 дата публикации

High Temperature Sodium Battery with High Energy Efficiency

Номер: US20150061570A1
Автор: Bhavaraju Sai, Joshi Ashok V.
Принадлежит:

A molten sodium secondary cell charges at a high temperature and discharges at a relatively lower temperature. The cell includes a sodium anode and a cathode. A sodium ion conductive solid membrane separates the cathode from the sodium anode and selectively transports sodium ions. A solar energy source includes a photovoltaic system to provide an electric charging potential to the sodium anode and the cathode and a solar thermal concentrator to provide heat to the cathode and catholyte composition to cause the molten sodium secondary cell to charge at a temperature in the range from about 300 to 800° C. The cell has a charge temperature and a charge voltage and a discharge temperature and a discharge voltage. The charge temperature is substantially higher than the discharge temperature, and the charge voltage is lower than the discharge voltage. 1. A molten sodium secondary cell that charges at a high temperature and discharges at a relatively lower temperature , comprising:a sodium anode that undergoes electrochemical oxidation during discharge and electrochemical reduction during charge;a cathode that undergoes electrochemical reduction during discharge and electrochemical oxidation during charge, wherein the cathode comprises a catholyte composition that is thermally stable at cell operating conditions;a sodium ion conductive solid membrane separating the cathode and catholyte composition from the sodium anode that selectively transports sodium ions and is chemically and thermally stable at cell operating conditions; and a photovoltaic system to provide an electric charging potential to the sodium anode and the cathode; and', 'a solar thermal concentrator to provide heat to the cathode and catholyte composition to cause the molten sodium secondary cell to charge at a temperature in the range from about 300 to 800° C.;, 'a solar energy source comprisingwherein the cell has a charge temperature and a charge voltage and a discharge temperature and a discharge ...

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Номер записи: 47
21-02-2019 дата публикации

ELECTRODE SEPARATOR

Номер: US20190058176A1
Автор: Adamson George W., Bishop Sam, Huang Biying, Liang Liang, Scanlan David John, Sun Ximei, Zhou Hongxia
Принадлежит:

The present invention provides a separator for use in an alkaline electrochemical cell comprising a polymer material and an inert filler comprising zirconium oxide. Examples of polymer materials useful in this invention include ABS polymer material, halogenated alkylene polymer material, and PE polymer material. 2. The separator of claim 1 , wherein the separator has a pore size of about 5 nm or greater.3. The separator of either of or claim 1 , wherein the polymer material further comprises a water soluble polymer.4. The separator of claim 3 , wherein the polymer material comprises from about 1 wt % to about 30 wt % of a water soluble polymer.5. The separator of either of or claim 3 , wherein the water soluble polymer comprises polyvinylpyrrolidone claim 3 , polyvinyl alcohol claim 3 , polyacrylic acid claim 3 , carbopol claim 3 , polyethylene glycol claim 3 , polystyrene sulfonic acid claim 3 , or any combination thereof.6. The separator of any one of - claim 3 , further comprising greater than about 10 wt % of filler.7. The separator of any one of - claim 3 , wherein the zirconium oxide material comprises a powder having a mean grain diameter of greater than about 30 nm.8. The separator of any one of - claim 3 , wherein the filler is substantially free of titanium.9. The separator of any one of - claim 3 , further comprising a dispersant.10. The separator of claim 9 , further comprising from about 0.1 wt % to about 9.99 wt % of dispersant.11. The separator of either of or claim 9 , wherein the dispersant comprises dodecylbenzenefulfonic acid or any salt thereof.12. The separator of any one of - claim 9 , wherein the zirconium oxide material comprises from about 1 mol % to about 10 mol % of yttrium oxide.13. The separator of any one of - claim 9 , further comprising a substrate.14. The separator of claim 13 , wherein the substrate comprises a woven or nonwoven film.15. The separator of either of or claim 13 , wherein the substrate comprises a polyolefin.16. The ...

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Номер записи: 48
21-02-2019 дата публикации

Metal hydride battery with added hydrogen gas, oxygen gas or hydrogen peroxide

Номер: US20190058225A1
Автор: Dag NORÉUS
Принадлежит: Nilar International AB

The invention relates to a starved metal hydride battery. The battery is characterized in that the battery further comprises added oxygen gas or hydrogen gas or hydrogen peroxide or a combination thereof in order to rebalance the electrodes and replenish the electrolyte by reactions with the electrode materials.

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Номер записи: 49
20-02-2020 дата публикации

BIPOLAR ELECTRODE FOR NICKEL-HYDROGEN STORAGE BATTERY AND NICKEL-HYDROGEN STORAGE BATTERY

Номер: US20200058952A1
Автор: MINAGATA Atsushi, SUGIMOTO YUKI
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A bipolar electrode includes a metal foil, a first active material layer provided on a front surface of the metal foil, and a second active material layer having a larger area than the first active material layer and provided on a rear surface of the metal foil. The second active material layer includes a low density region disposed in a peripheral portion in plan view as viewed from a thickness direction of the metal foil, and a high density region disposed more inside than the low density region and having a smaller porosity than the low density region. 1. A bipolar electrode for a nickel-hydrogen storage battery , the bipolar electrode comprising:a metal foil;a first active material layer provided on a front surface of the metal foil; anda second active material layer provided on a rear surface of the metal foil and having a larger area than the first active material layer, a low density region disposed in a peripheral portion in plan view as viewed from a thickness direction of the metal foil, and', 'a high density region disposed inward of the low density region and having a smaller porosity than the low density region., 'wherein the second active material layer includes'}2. The bipolar electrode for a nickel-hydrogen storage battery according to claim 1 , whereinthe high density region is disposed at a position overlapping with at least a part of the first active material layer in plan view as viewed from the thickness direction of the metal foil.3. The bipolar electrode for a nickel-hydrogen storage battery according to claim 1 , whereinthe high density region has a porosity of from 28 to 40%.4. The bipolar electrode for a nickel-hydrogen storage battery according to claim 1 , whereinthe low density region has a porosity of from 56 to 63%.5. The bipolar electrode for a nickel-hydrogen storage battery according to claim 1 , whereina thickness of the low density region is larger than a thickness of the high density region.6. The bipolar electrode for a nickel- ...

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Номер записи: 50
02-03-2017 дата публикации

UNINTERRUPTIBLE POWER SUPPLY UNIT

Номер: US20170063150A1
Автор: Kabasawa Takashi, Sakamoto Jinichi
Принадлежит:

An uninterruptible power supply unit is configured such that, during charging of a first battery pack, and until, after the first battery pack is charged to a fully charged state, the voltage of the first battery pack is lowered below an upper limit voltage of a load device, discharging of the first battery pack is prohibited, and discharging of the second battery pack is allowed, and such that, during charging of a second battery pack, and until, after the second battery pack is charged to a fully charged state, the voltage of the second battery pack is lowered below the upper limit voltage of the load device, discharging of the second battery pack is prohibited, and discharging of the first battery pack is allowed. 1. An uninterruptible power supply unit comprising:an input/output terminal which is connected in parallel with a power supply line supplying electric power from an external power supply to a load device;a battery unit including a first battery pack and a second battery pack, each of which has a rated voltage equal to a voltage of the external power supply;a charging circuit which boosts the voltage of the external power supply to a charging voltage of the first battery pack and the second battery pack, and charges the battery unit with the boosted charging voltage;a discharging circuit which, in response to power failure of the external power supply, discharges electric power from the battery unit to the load device via the input/output terminal; anda control unit which controls the charging circuit and the discharging circuit,wherein, during charging of the first battery pack, and until, after the first battery pack is charged to a fully charged state, the voltage of the first battery pack is lowered below an upper limit voltage of the load device, the control unit prohibits discharging of the first battery pack and allows discharging of the second battery pack, andduring charging of the second battery pack, and until, after the second battery pack is ...

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Номер записи: 51
12-03-2015 дата публикации

NICKEL-IRON BATTERY COMPRISING A GAS CHANNELING POLYOLEFIN SEPARATOR INLAY

Номер: US20150072226A1
Автор: OGG Randy Gene
Принадлежит: ENCELL TECHNOLOGY, INC.

Provided is a Ni-Fe battery comprising a positive electrode, a negative electrode, electrolyte, and a polyolefin separator/inlay interposed between the positive and negative electrodes, with the separator/inlay having channels that allow movement of gas. In one embodiment, the separator/inlay has channels that exist in at least two planes. 1. A Ni-Fe battery comprising a nickel positive electrode , an iron negative electrode , electrolyte , and a polyolefin separator/inlay interposed between the positive and negative electrodes , with the separator/inlay having channels that allow movement of the gas.2. The Ni-Fe battery of claim 1 , wherein the separator/inlay is a nonwoven material.3. The Ni-Fe battery of claim 1 , wherein the separator/inlay is at least 50 mils thick.4. The Ni-Fe battery of claim 1 , wherein the channels exist in at least two planes.5. The Ni-Fe battery of claim 1 , wherein the electrolyte comprises sodium hydroxide claim 1 , lithium hydroxide and a sulfur compound.6. The Ni-Fe battery of claim 5 , wherein the sulfur compound is NaS.7. The Ni-Fe battery of claim 1 , wherein the separator/inlay is in contact with either the positive or negative electrode.8. The Ni-Fe battery of claim 7 , wherein pressure is applied to the electrodes.9. The Ni-Fe battery of claim 1 , wherein the electrodes are single layer substrate electrodes.10. The Ni-Fe battery of claim 9 , wherein the iron negative electrode is a coated single layer substrate electrode.11. The Ni-Fe battery of claim 9 , wherein the electrodes are sintered.12. The Ni-Fe of battery claim 3 , wherein the separator/inlay is from 50-120 mils thick.13. The Ni-Fe battery of claim 3 , wherein the separator/inlay is from 50-80 mils thick.14. The Ni-Fe battery of claim 3 , wherein the separator/inlay is from 60-70 mils thick.15. The Ni-Fe battery of claim 12 , wherein the channels exist in at least two planes.16. The Ni-Fe battery of claim 12 , wherein the separator/inlay is a nonwoven material.17. The ...

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Номер записи: 52
12-03-2015 дата публикации

NICKEL-IRON BATTERY COMPRISING A GAS CHANNELING POLYMERIC SEPARATOR INLAY

Номер: US20150072227A1
Автор: OGG Randy Gene
Принадлежит: ENCELL TECHNOLOGY, INC.

Provided is a nickel-iron battery comprising a positive electrode, a negative electrode, electrolyte, and a polymeric separator/inlay interposed between the positive and negative electrodes, with the separator/inlay having channels that allow movement of gas. In one embodiment, the separator/inlay has channels that exist in at least two planes. In one embodiment, the separator inlay is comprised of a polyester, polyamide, polyvinyl chloride or fluorocarbon polymer. 1. A nickel-iron battery comprising a nickel positive electrode , an iron negative electrode , electrolyte , and a separator/inlay interposed between the positive and negative electrodes , with the separator/inlay having channels that allow movement of the gas.2. The nickel-iron battery of claim 1 , wherein the separator/inlay is comprised of a polyester claim 1 , polyamide claim 1 , polyvinyl chloride or fluorocarbon polymer.3. The nickel-iron battery of claim 1 , wherein the separator/inlay is a nonwoven material.4. The nickel-iron battery of claim 1 , wherein the separator/inlay is at least 50 mils thick.5. The nickel-iron battery of claim 1 , wherein the channels exist in at least two planes.6. The nickel-iron battery of claim 1 , wherein the electrolyte comprises sodium hydroxide claim 1 , lithium hydroxide and a sulfur compound.7. The nickel-iron battery of claim 6 , wherein the sulfur compound is NaS.8. The nickel-iron battery of claim 1 , wherein the separator/inlay is in contact with either the positive or negative electrode.9. The nickel-iron battery of claim 8 , wherein pressure is applied to the electrodes.10. The nickel-iron battery of claim 1 , wherein the electrodes are single layer substrate electrodes.11. The nickel-iron battery of claim 10 , wherein the negative electrode is a coated single layer substrate electrode.12. The nickel-iron battery of claim 10 , wherein the electrodes are sintered.13. The nickel-iron battery of claim 2 , wherein the separator/inlay is a nonwoven material.14. ...

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Номер записи: 53
12-03-2015 дата публикации

ALKALINE BATTERY COMPRISING A GAS CHANNELING POLYMERIC SEPARATOR INLAY

Номер: US20150072228A1
Автор: OGG Randy Gene
Принадлежит: ENCELL TECHNOLOGY, INC.

Provided is an alkaline battery comprising a positive electrode, a negative electrode, electrolyte, and a polymeric separator/inlay interposed between the positive and negative electrodes, with the polymeric separator/inlay having channels that allow movement of gas. In one embodiment, the polymeric separator inlay is comprised of a polyester, polyamide, polyvinyl chloride or fluorocarbon polymer. 1. An alkaline battery comprising a nickel positive electrode , a negative electrode , electrolyte , and a polymeric separator/inlay interposed between the positive and negative electrodes , with the polymeric separator/inlay having channels that allow movement of gas.2. The alkaline battery of claim 1 , wherein the separator/inlay is comprised of a polyester claim 1 , polyamide claim 1 , polyvinyl chloride claim 1 , fluorocarbon polymer claim 1 , or co-polymer or blend thereof.3. The alkaline battery of claim 1 , wherein the separator/inlay is a nonwoven material.4. The alkaline battery of claim 1 , wherein the separator/inlay is at least 50 mils thick.5. The alkaline battery of claim 1 , wherein the channels exist in at least two planes.6. The alkaline battery of claim 1 , wherein the electrolyte comprises sodium hydroxide claim 1 , lithium hydroxide and a sulfur compound.7. The alkaline battery of claim 6 , wherein the sulfur compound is NaS.8. The alkaline battery of claim 1 , wherein the separator/inlay is in contact with either the positive or negative electrode.9. The alkaline battery of claim 8 , wherein pressure is applied to the electrodes.10. The alkaline battery of claim 1 , wherein the electrodes are single layer substrate electrodes.11. The alkaline battery of claim 10 , wherein the negative electrode is a coated single layer substrate electrode.12. The alkaline battery of claim 2 , wherein the separator/inlay is at least 50 mil thick.13. The alkaline battery of claim 2 , wherein the separator/inlay is from 50-120 mils thick.14. The alkaline battery of claim ...

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Номер записи: 54
12-03-2015 дата публикации

GAS CHANNELING POLYOLEFIN SEPARATOR INLAY

Номер: US20150072242A1
Автор: OGG Randy Gene
Принадлежит: ENCELL TECHNOLOGY, INC.

Provided is a polyolefin separator/inlay interposed between the positive and negative electrodes of a battery, with the separator/inlay having channels that exist in at least two planes. In one embodiment, the separator inlay is comprised of a polyolefin. 1. A polyolefin separator/inlay for placement between a positive electrode and a negative electrode , comprising channels that allow movement of the gas.2. The polyolefin separator/inlay of claim 1 , wherein the separator/inlay is comprised of polyethylene claim 1 , polypropylene claim 1 , polybutene claim 1 , polymethylpentene claim 1 , a blend thereof or a copolymer thereof.3. The polyolefin separator/inlay of claim 2 , wherein the separator/inlay is comprised of polyethylene or polypropylene.4. The polyolefin separator/inlay of claim 2 , wherein the separator/inlay is a nonwoven material.5. The polyolefin separator/inlay of claim 2 , wherein the separator/inlay is at least 50 mil thick.6. The polyolefin separator/inlay of claim 5 , wherein the separator/inlay is from 50-120 mils thick.7. The polyolefin separator/inlay of claim 5 , wherein the separator/inlay is from 50-80 mils thick.8. The polyolefin separator/inlay of claim 5 , wherein the separator/inlay is from 60-70 mils thick.9. The polyolefin separator/inlay of claim 2 , wherein the channels exist in at least two planes.10. The polyolefin separator/inlay of claim 5 , wherein the separator/inlay is a nonwoven material. The present application claims priority to provisional applications U.S. 61/876,021 filed on Sep. 10, 2013 and U.S. 61/907,689 filed on Nov. 22, 2013, with both applications herein incorporated by reference in their entirety.1. Field of InventionThe present invention is in the technical field of energy storage devices. More particularly, the present invention is in the technical field of rechargeable batteries using an alkaline electrolyte, and the separators used in those batteries.2. State of the ArtBatteries with an alkaline electrolyte ...

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Номер записи: 55
29-05-2014 дата публикации

BATTERY AND MIXED MOLTEN LIQUID

Номер: US20140147720A1
Автор: HASE Yoko, ITO Emi, Takechi Kensuke
Принадлежит: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

An electrochemical cell includes a case serving as an insulating tube, an inner container disposed on the inside wall of the case , a separator separating the inside of the case into a positive electrode chamber and a negative electrode chamber , a mixed molten liquid which is stored in the positive electrode chamber and which contains a positive electrode active material and a supporting electrolyte, and a negative electrode active material stored in the negative electrode chamber . The mixed molten liquid is a liquid obtained by mixing a radical compound having a nitroxyl radical site and serving as an active material and a metal salt having a fluoroalkylsulfonyl site and serving as a supporting electrolyte. 1. A battery comprising a mixed molten liquid obtained by mixing a radical compound having a nitroxyl radical site and a metal salt having a fluoroalkylsulfonyl site.2. The battery according to claim 1 , wherein the radical compound is an active material and the metal salt is a supporting electrolyte.3. The battery according to claim 1 , wherein the mixed molten liquid does not contain a solvent.4. The battery according to claim 1 , wherein the mixed molten liquid contains 10 percent by mass or less of water as an additive to improve the charge-discharge characteristics.5. The battery according to claim 1 , wherein the mixed molten liquid is produced by adding an additive claim 1 , which decreases the viscosity claim 1 , to a liquid resulting from mixing of the radical compound and the metal salt.6. The battery according to claim 5 , wherein the additive is water or acetonitrile.7. The battery according to claim 1 , wherein the mixed molten liquid has each of concentrations of the radical compound and the metal salt of 0.5 mol/L or more and a viscosity of 10 claim 1 ,000 mPa·s or less.9. The battery according to claim 1 , wherein the metal salt contains at least one of bis(trifluoromethanesulfonyl)imide and bis(pentafluoroethanesulfonyl)imide.10. The battery ...

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Номер записи: 56
16-03-2017 дата публикации

BATTERY PACK UNIT TESTING METHOD AND TESTING APPARATUS

Номер: US20170074942A1
Автор: MIYAZAKI Motoki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An inventive testing method is intended for testing a battery pack unit including: a battery pack including a plurality of cells electrically connected to each other; and a duct assembly through which a coolant is supplied to the cells of the battery pack. The testing method includes: a) charging the battery pack under predetermined conditions while supplying the coolant to the duct assembly; b) acquiring temperature information on the cells at predetermined time intervals during step a); and c) determining whether a difference between the highest and lowest ones of the temperatures of the cells measured at substantially the same time is equal to or greater than a predetermined reference temperature difference on the basis of the temperature information acquired in step b). 1. A battery pack unit testing method for a battery pack unit comprising:a battery pack including a plurality of cells electrically connected to each other; anda duct assembly through which a coolant is supplied to the cells of the battery pack, the method comprising:a) charging the battery pack under predetermined conditions while supplying the coolant to the duct assembly;b) acquiring temperature information on the cells at predetermined time intervals during step a); andc) determining whether a difference between the highest and lowest ones of temperatures of the cells measured at substantially the same time is equal to or greater than a predetermined reference temperature difference on the basis of the temperature information acquired in step b).2. The battery pack unit testing method according to claim 1 , whereinstep a) involves starting the charging of the battery pack after the coolant is supplied to the duct assembly.3. The battery pack unit testing method according to claim 1 , whereinthe charging of the battery pack in step a) is performed at some time between completion of assembly of the battery pack unit and shipment of the battery pack unit.4. The battery pack unit testing method ...

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Номер записи: 57
07-03-2019 дата публикации

METHOD OF RECYCLING SECONDARY BATTERY AND SECONDARY BATTERY SYSTEM

Номер: US20190074553A1
Автор: Kaiya Hiroyuki, Takahashi Kenji
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A method of recycling a battery pack includes first to third steps. The first step is a step of estimating an amount of generation of NiOH in a positive electrode of the battery pack based on a voltage value and a temperature of the battery pack. The second step is a step of recycling the battery pack for a high-capacity application when the estimated amount of generation is equal to or smaller than a prescribed reference amount. The third step is a step of recycling the battery pack for a high input-and-output application when the estimated amount of generation is greater than the reference amount and not greater than a reference amount. 1. A method of recycling a secondary battery containing a nickel-based compound as a positive electrode active material , the method comprising:{'sub': 2', '3, 'estimating an amount of NiOH generated in a positive electrode of the secondary battery based on a detection value resulting from detection of a state of the secondary battery;'}{'sub': 2', '3, 'recycling the secondary battery for a high-capacity application when the estimated amount of NiOH is smaller than a prescribed reference amount; and'}{'sub': 2', '3, 'recycling the secondary battery for a high input-and-output application when the estimated amount of NiOH is greater than the reference amount.'}2. The method of recycling a secondary battery according to claim 1 , wherein{'sub': 2', '3, 'a full charge capacity of the secondary battery lowers with increase in the amount of NiOH, and'}the reference amount is determined based on the full charge capacity of the secondary battery.3. The method of recycling a secondary battery according to claim 1 , wherein{'sub': 2', '3, 'lowering in electric power which can be input to and output from the secondary battery is mitigated with increase in the amount of NiOH, and'}the reference amount is determined based on the electric power which can be input to and output from the secondary battery.4. The method of recycling a secondary ...

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Номер записи: 58
17-03-2016 дата публикации

MOLTEN-SALT ELECTROLYTE AND SODIUM MOLTEN-SALT BATTERY

Номер: US20160079632A1
Автор: FUKUNAGA Atsushi, Imazaki Eiko, Inazawa Shinji, Nitta Koji, Numata Koma, Sakai Shoichiro
Принадлежит:

Provided are a molten-salt electrolyte having good charge-discharge cycle characteristics and a sodium molten-salt battery using the same. The molten-salt electrolyte contains an ionic liquid whose ultraviolet-visible absorption spectrum does not have an absorption peak attributable to impurities in a wavelength range of 200 to 500 nm, and a sodium salt. The sodium molten-salt battery includes a positive electrode that contains a positive electrode active material, a negative electrode that contains a negative electrode active material, and the molten-salt electrolyte. The ionic liquid is preferably a salt of an organic onium cation and a bis(sulfonyl)imide anion. 1. A molten-salt electrolyte comprising an ionic liquid whose ultraviolet-visible absorption spectrum does not have an absorption peak attributable to impurities in a wavelength range of 200 nm or more and 500 nm or less; and a sodium salt.2. The molten-salt electrolyte according to claim 1 , wherein the ionic liquid is a salt of an organic onium cation and a bis(sulfonyl)imide anion.3. The molten-salt electrolyte according to claim 2 , wherein the organic onium cation has a nitrogen-containing heterocycle.4. The molten-salt electrolyte according to claim 3 , wherein the nitrogen-containing heterocycle has a pyrrolidine skeleton.5. The molten-salt electrolyte according to claim 1 , wherein the sodium salt is a salt of a sodium ion and a bis(sulfonyl)imide anion.6. A sodium molten-salt battery comprising a positive electrode that contains a positive electrode active material; a negative electrode that contains a negative electrode active material; and the molten-salt electrolyte according to . The present invention relates to a molten-salt electrolyte having sodium ion conductivity, and a sodium molten-salt battery that includes the molten-salt electrolyte. In particular, the present invention relates to an improvement of a molten-salt electrolyte.In recent years, the demand for non-aqueous electrolyte ...

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Номер записи: 59
16-03-2017 дата публикации

SEPARATOR STRUCTURE BODY FOR USE IN ZINC SECONDARY BATTERY

Номер: US20170077476A1
Автор: HAYASHI Hiroshi, KITOH Kenshin, YAMADA Naohito
Принадлежит: NGK Insulators, Ltd.

Provided is a separator structure for use in a zinc secondary battery. The separator structure includes a ceramic separator composed of an inorganic solid electrolyte and having hydroxide ion conductivity and water impermeability, and a peripheral member disposed along the periphery of the ceramic separator and composed of at least one of a resin frame and a resin film. The separator structure exhibits water impermeability as a whole. The separator structure of the present invention can reliably separate the positive electrode side from the negative electrode side in a zinc secondary battery, is readily sealed and bonded to a resin battery container, and exhibits significantly improved handleability during the assembly of the battery. 1. A separator structure for use in a zinc secondary battery , the separator structure comprising:a ceramic separator comprising an inorganic solid electrolyte and having hydroxide ion conductivity and water impermeability; anda peripheral member disposed along the periphery of the ceramic separator and comprising at least one of a resin frame and a resin film,wherein the separator structure exhibits water impermeability as a whole.2. The separator structure according to claim 1 , wherein the peripheral member comprises a resin frame claim 1 , and the ceramic separator is fitted or bonded inside the frame and/or on the frame.3. The separator structure according to claim 1 , wherein the peripheral member comprises a resin film having an opening claim 1 , and the ceramic separator is fitted or bonded to the opening of the resin film.4. The separator structure according to claim 1 , wherein the peripheral member comprises a combination of a resin frame and a resin film having an opening claim 1 , the ceramic separator is fitted or bonded inside the frame and/or on the frame claim 1 , and the frame is fitted or bonded to the opening of the resin film.5. The separator structure according to claim 1 , wherein the peripheral member comprises ...

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Номер записи: 60
26-03-2015 дата публикации

Intermediate Temperature Sodium-Metal Halide Battery

Номер: US20150086826A1
Автор: Bhavaraju Sai, Eccleston Alexis, Joshi Ashok V., Robins Mathew
Принадлежит:

An intermediate temperature molten sodium-metal halide rechargeable battery utilizes a molten eutectic mixture of sodium haloaluminate salts having a relatively low melting point that enables the battery to operate at substantially lower temperature compared to the traditional ZEBRA battery system and utilize a highly conductive NaSICON solid electrolyte membrane. The positive electrode comprises a mixture of NaX and MX, where X is a halogen selected from Cl, Br and I and M is a metal selected Ni, Fe, and Zn. The positive electrode is disposed in a mixed molten salt positive electrolyte comprising at least two salts that can be represented by the formula NaAlX′X″, where 0<δ<4, wherein X′ and X″ are different halogens selected from Cl, Br and I. The positive electrode may include additional NaX added in a molar ratio ranging from 1:1 to 3:1 of NaX:NaAlX′X″. 1. A rechargeable sodium battery comprising:a negative electrode comprising metallic sodium in molten state;{'sub': 4-δ', 'δ, 'a positive electrode comprising a mixture of NaX and MX, where X is a halogen selected from Cl, Br and I and M is a metal selected Ni, Fe, and Zn, wherein the positive electrode is disposed in a mixed molten salt positive electrolyte comprising at least two salts that can be represented by the formula NaAlX′X″, where 0<δ<4, wherein X′ and X″ are different halogens selected from Cl, Br and I; and'}a sodium ion conductive solid electrolyte provided between the negative electrode and the positive electrode.2. The rechargeable sodium battery of claim 1 , wherein the mixed molten salt positive electrolyte comprises at least two salts of the general formula NaAlX′and NaAlX″at various molar ratios.3. The rechargeable sodium battery of claim 2 , wherein the molar ratio of NaAlX′to NaAlX″is in the range of 9:1 to 1:9 with corresponding 6 values of 0.4 to 3.6.4. The rechargeable sodium battery of claim 1 , wherein the positive electrode comprises additional NaX or a mixture of NaX compounds added in ...

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Номер записи: 61
22-03-2018 дата публикации

ALKALINE AND NON-AQUEOUS PROTON-CONDUCTING POUCH-CELL BATTERIES

Номер: US20180083233A1
Автор: Meng Tiejun, Nei Jean, Young Kwo-hsiung
Принадлежит:

Provided are sealed pouch-cell batteries that are alkaline batteries or non-aqueous proton-conducing batteries. A pouch cell includes a flexible housing such as is used for pouch cell construction where the housing is in the form of a pouch, a cathode comprising a cathode active material suitable for use in an alkaline battery, an anode comprising an anode active material suitable for use in an alkaline battery, an electrolyte that is optionally an alkaline or proton-conducting electrolyte, and wherein the pouch does not include or require a safety vent or other gas absorbing or releasing system. The batteries provided function contrary to the art recognized belief that such battery systems were impossible due to unacceptable gas production during cycling. 1. A sealed pouch-cell battery comprising:a flexible housing in the form of a sealed pouch, said flexible housing absent a safety vent;a cathode comprising a cathode active material capable of reversibly absorbing a hydrogen ion;an anode comprising metal hydride anode active material capable of reversibly absorbing a hydrogen ion;a proton or hydroxyl ion conducting electrolyte; andsaid cathode, anode, and electrolyte housed within said pouch wherein said electrolyte is in chemical contact with both said cathode and said anode active material.2. The battery of further comprising a battery protection circuit capable of measuring the rate of change of battery voltage with respect to time claim 1 , battery temperature claim 1 , or both;said battery protection circuit in electrical connection to said cathode and said anode.3. The battery of wherein said battery protection circuit further comprises a memory device capable of recording state of charge for each charge cycle.4. The battery of wherein said battery protection circuit is capable of terminating the charge process when a charge state is equal to or greater than 90% state of charge.5. The battery of wherein said electrolyte is a polymer or solid separator/ ...

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Номер записи: 62
22-03-2018 дата публикации

Process for Metal-Sulfur Battery Cathode Containing Humic Acid-Derived Conductive Foam

Номер: US20180083266A1
Автор: Jang Bor Z., Zhamu Aruna
Принадлежит: Nanotek Instruments, Inc.

Provided is a process for producing a sulfur cathode for a metal-sulfur battery. The process comprises: (a) Preparing a humic acid-derived foam or combined humic acid/graphene-derived foam composed of multiple pores and pore walls, wherein the pore walls contain one or a plurality of hexagonal carbon atomic planes; and (b) Impregnating the foam with sulfur or sulfide in a form of thin particles or coating, having a diameter or thickness less than 500 nm, which are lodged in the pores or deposited on the pore walls of the foam. 1. A process for producing sulfur cathode for a metal-sulfur battery , said process comprising:(a) Preparing a humic acid-derived foam or combined humic acid/graphene-derived foam composed of multiple pores and pore walls, wherein said pore walls contain one or a plurality of hexagonal carbon atomic planes; and(b) Impregnating said foam with sulfur or sulfide in a form of thin particles or coating, having a diameter or thickness less than 500 nm, which are lodged in said pores or deposited on said pore walls.2. The process of claim 1 , wherein said step (a) includes:(A) Preparing a humic acid dispersion having multiple humic acid molecules and optional graphene sheets dispersed in a liquid medium, wherein said humic acid is selected from the group consisting of oxidized humic acid, reduced humic acid, fluorinated humic acid, chlorinated humic acid, brominated humic acid, iodized humic acid, hydrogenated humic acid, nitrogenated humic acid, doped humic acid, chemically functionalized humic acid, and a combinations thereof and wherein said dispersion contains an optional blowing agent having a blowing agent-to-humic acid weight ratio from 0/1.0 to 1.0/1.0;(B) dispensing and depositing said humic acid dispersion onto a surface of a supporting substrate to form a wet layer of humic acid and partially or completely removing said liquid medium from the wet layer of humic acid to form a dried layer of humic acid; and{'sub': '002', '(C) heat treating ...

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Номер записи: 63
12-03-2020 дата публикации

SEPARATOR FOR BATTERIES

Номер: US20200083504A1
Автор: GUILLONNET Didier, Martirosyan Suren
Принадлежит:

A separator which is permeable to hydroxide ion, and which contains at least one Dendrite Stopping Substance such as Ni(OH), or its precursor. 1. A separator which is permeable to hydroxide ion , for use in an electrically rechargeable electrochemical cell with alkaline electrolyte between a Zinc electrode and a counter electrode , wherein:said separator consisting in a porous or fibrous material defining cavities or pores, wherein said cavities or pores containing within at least one Dendrite Stopping Substance or DSS, said DSS being a metal-containing compound, said metal chosen from the metals of the group consisting of Pt, Pd, Ni, Fe and Mn metal, and,said DSS being in a form of particles and being disposed solely within said cavities or pores.2. The separator according to wherein said DSS is Ni(OH)or one of its precursors.3. The separator according to claim 2 , wherein said one of the precursors of Ni(OH)is NiCOor NiSO.4. The separator according to claim 1 , wherein the size of the DSS particles is below 250 μm.5. The separator according to claim 1 , wherein the thickness of the separator is from 50 to 1000 μm.6. An electrically rechargeable battery claim 1 , with strong alkaline electrolyte claim 1 , comprising at least one separator according to claim 1 , said separator being placed between a Zinc electrode and a counter electrode.7. The electrically rechargeable battery according to comprising an air electrode as cathode.8. The electrically rechargeable battery according to claim 6 , comprising a nickel-oxide or silver electrode as cathode.9. An electric or hybrid vehicle comprising at least one electrically rechargeable battery as defined in . This application is a continuation of U.S. Ser. No. 15/122,800 filed Aug. 31, 2016, which was a national stage application, filed under 35 U.S.C. § 371, of International Patent Application No. PCT/IB2015/051471 filed Feb. 27, 2015, which claims priority to provisional application No. 61/947,327 filed Mar. 3, 2014. ...

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Номер записи: 64
31-03-2016 дата публикации

HYDROGEN STORING ALLOY, ELECTRODE, AND NICKEL-HYDROGEN STORAGE BATTERY

Номер: US20160090643A1
Автор: Kanemoto Manabu, Kodama Mitsuhiro, Okuda Daisuke
Принадлежит:

Provided is a hydrogen storing alloy represented by the general formula: 1. A hydrogen storing alloy represented by the general formula:{'sub': 1-a-b', 'a', 'b', '1-c-d', 'c', 'd', 'x, '(RESmMg)(NiAlM)(where 0.3 Подробнее

Номер записи: 65
19-06-2014 дата публикации

MOLTEN SALT BATTERY

Номер: US20140170458A1
Автор: FUKUNAGA Atsushi, Hagiwara Rika, Inazawa Shinji, Majima Masatoshi, MATSUMOTO Kazuhiko, Nitta Koji, Nohira Toshiyuki, Sakai Shoichiro, YAMAGUCHI Atsushi
Принадлежит:

A separator () of a molten salt battery is impregnated with a molten salt that serves as the electrolyte. The molten salt contains, as cations, at least one kind of ions selected from among quaternary ammonium ions, imidazolium ions, imidazolinium ions, pyridinium ions, pyrrolidinium ions, piperidinium ions, morpholinium ions, phosphonium ions, piperazinium ions and sulfonium ions in addition to sodium ions. These cations do not have adverse effects on a positive electrode (). In addition, the melting point of the molten salt, which contains sodium ions and the above-mentioned cations, is significantly lower than the operating temperature of sodium-sulfur batteries, said operating temperature being 280-360 DEG C. Consequently, the molten salt battery is capable of operating at lower temperatures than sodium-sulfur batteries. 2. The molten-salt battery according to claim 1 , wherein the molten salt comprises claim 1 , as cation claim 1 , the sodium ion as well as the quaternary ammonium ion in which R claim 1 , R claim 1 , Rand Rof formula (2) are the same or different from each other and each of them is the alkyl group having 1-6 carbon atoms.3. The molten-salt battery according to claim 1 , wherein the molten salt comprises claim 1 , as cation claim 1 , the sodium ion as well as the imidazolium ion in which one of Rand Rof formula (3) is the methyl group and the other one is the alkyl group having 1-6 carbon atoms.4. The molten-salt battery according to claim 1 , wherein the molten salt comprises claim 1 , as cation claim 1 , the sodium ion as well as the pyrrolidinium ion in which one of Rand Rof formula (6) is the methyl group and the other one is the alkyl group having 1-6 carbon atoms.5. The molten-salt battery according to claim 1 , wherein the molten salt comprises claim 1 , as cation claim 1 , the sodium ion as well as the piperidinium ion in which one of Rand Rof formula (7) is the methyl group and the other one is the alkyl group having 1-6 carbon atoms.6. ...

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Номер записи: 66
21-03-2019 дата публикации

Rechargeable Alkaline Battery Comprising Metal Hydroxide Separator

Номер: US20190088915A1
Автор: Banerjee Sanjoy, Gallaway Joshua, HUANG Jinchao, Nyce Michael, YADAV Gautam G.
Принадлежит:

A rechargeable alkaline battery includes an anode comprising zinc, a cathode, and separator disposed between the anode and the cathode. The separator comprises a water-insoluble metal hydroxide. For example, the water-insoluble metal hydroxide can be magnesium hydroxide, calcium hydroxide, strontium hydroxide, barium hydroxide, or any combination thereof. The separator comprising the water-insoluble metal hydroxide can serve to capture a portion of any zincate ions produced at the anode prior to the zincate ions passing through the separator to the cathode. 1. A rechargeable alkaline battery comprising:an anode comprising zinc;a cathode; anda membrane disposed between the anode and the cathode, wherein the membrane comprises a water-insoluble metal hydroxide dispersed in a binder.2. The rechargeable alkaline battery of claim 1 , wherein the water-insoluble metal hydroxide is selected from the group consisting of: magnesium hydroxide claim 1 , calcium hydroxide claim 1 , strontium hydroxide claim 1 , barium hydroxide claim 1 , and any combination thereof.3. The rechargeable alkaline battery of claim 1 , wherein the binder comprises a polymeric binder claim 1 , wherein the polymeric binder is selected from the group consisting of polytetrafluoroethylene claim 1 , polyvinyl alcohol (PVA) claim 1 , polytetrafluoroethylene (PTFE) claim 1 , carboxymethyl cellulose (CMC) claim 1 , and any combination thereof.4. The rechargeable alkaline battery of claim 1 , wherein the separator comprises 70 wt. % to 99 wt. % of the water-insoluble metal hydroxide and 1 wt. % to 30 wt. % of the binder.5. The rechargeable alkaline battery of claim 1 , wherein the cathode comprises manganese dioxide.6. The rechargeable alkaline battery of claim 1 , wherein 1 to 5 layers of the membrane are inserted either alone or in between polymeric separator membranes.7. (canceled)8. The rechargeable alkaline battery of claim 1 , wherein the membrane is applied with one or more commercial separators claim ...

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Номер записи: 67
21-03-2019 дата публикации

Multi-Element Liquid Metal Battery

Номер: US20190089013A1
Автор: Kim Hojong, Ouchi Takanari, Sadoway Donald R.
Принадлежит:

An electrochemical cell including: a negative electrode including calcium and an alkali metal; a positive electrode including one or more elements selected from the group consisting of Al, Si, Zn, Ga, Ge, Cd, In, Sn, Sb, Hg, Tl, Pb, Bi, Te, Bi, Pb, Sb, Zn, Sn and Mg; and an electrolyte including a salt of calcium and a salt of the alkali metal. The electrolyte is configured to allow the cations of the calcium and alkali metal to be transferred from the negative electrode to the positive electrode during discharging and to be transferred from the positive electrode to the negative electrode during charging. The electrolyte exists as a liquid phase and one or both of the negative electrode and the positive electrode exists as liquid or partially liquid phases at operating temperatures of the electrochemical cell. 1. An electrochemical cell configured to exchange energy with an external device , the electrochemical cell comprising:a negative electrode comprising calcium and an alkali metal;a positive electrode comprising one or more elements selected from the group consisting of Al, Si, Zn, Ga, Ge, Cd, In, Sn, Sb, Hg, Tl, Pb, Bi, Te, Bi, Pb, Sb, Zn, Sn, and Mg; andan electrolyte comprising a salt of calcium and a salt of the alkali metal, the electrolyte configured to allow the cations of the calcium and alkali metal to be transferred from the negative electrode to the positive electrode during discharging and to be transferred from the positive electrode to the negative electrode during charging,wherein the electrolyte exists as a liquid phase and one or both of the negative electrode and the positive electrode exists as liquid or partially liquid phases at operating temperatures of the electrochemical cell.2. The electrochemical cell of claim 1 , wherein the alkali metal is lithium.3. The electrochemical cell of claim 1 , wherein the negative electrode claim 1 , the positive electrode or both further includes a diluent.4. The electrochemical cell of claim 3 , wherein ...

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Номер записи: 68
30-03-2017 дата публикации

Electroless plated anode for secondary battery

Номер: US20170092990A1
Автор: Derek C. Tarrant
Принадлежит: Vizn Energy Systems Inc, Vlzn Energy Systems Inc

A secondary battery includes an alkaline electrolyte and a negative electrode in contact with the alkaline electrolyte. The negative electrode includes a conductive metal substrate having thereon a metal alloy coating including nickel and an amorphous phase containing phosphorous.

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Номер записи: 69
01-04-2021 дата публикации

NICKELATE CATHODE MATERIALS

Номер: US20210094841A1
Автор: Zheng Guanghong
Принадлежит:

Nickelate cathode materials are provided, wherein said cathode material has an X-ray diffraction (XRD) pattern comprising a first peak from about 40.0-41.6 2Θ, and a second peak from about 62.6-63.0 2Θ. Methods of preparing such cathode materials are also provided. Alkaline electrochemical cells comprising said cathode materials are also provided. 1. A nickelate cathode material , said cathode material having an X-ray diffraction (XRD) pattern comprising a first peak from about 40.0-41.6 2Θ , and a second peak from about 62.6-63.0 2Θ.2. The nickelate cathode material of claim 1 , wherein said XRD pattern further comprises at least one peak selected from the group consisting of a third peak from about 18.1-19.7 2Θ claim 1 , a fourth peak from about 24.5-25.7 2Θ claim 1 , a fifth peak from about 36.4-38.0 2Θ claim 1 , a sixth peak from about 43.0-43.4 2Θ claim 1 , a seventh peak from about 59.6-60.4 2Θ claim 1 , an eighth peak from about 65.2-66.8 2Θ claim 1 , a ninth peak from about 11.8-13.0 2Θ claim 1 , a tenth peak from about 45.3-46.9 2Θ claim 1 , and an eleventh peak from about 47.4-49.0 2Θ.3. The nickelate cathode material of claim 1 , wherein said XRD pattern further comprises at least three peaks selected from the group consisting of a third peak from about 18.1-19.7 2Θ claim 1 , a fourth peak from about 24.5-25.7 2Θ claim 1 , a fifth peak from about 36.4-38.0 2Θ claim 1 , a sixth peak from about 43.0-43.4 2Θ claim 1 , a seventh peak from about 59.6-60.4 2Θ claim 1 , an eighth peak from about 65.2-66.8 2Θ claim 1 , a ninth peak from about 11.8-13.0 2Θ claim 1 , a tenth peak from about 45.3-46.9 2Θ claim 1 , and an eleventh peak from about 47.4-49.0 2Θ.4. The nickelate cathode material of claim 1 , wherein said XRD pattern further comprises at least six peaks selected from the group consisting of a third peak from about 18.1-19.7 2Θ claim 1 , a fourth peak from about 24.5-25.7 2Θ claim 1 , a fifth peak from about 36.4-38.0 2Θ claim 1 , a sixth peak from about ...

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Номер записи: 70
12-05-2022 дата публикации

LOW-COST SURFACE-PROTECTED IRON-BASED SUBSTRATES FOR THE NICKEL HYDROXIDE ELECTRODE IN ALKALINE BATTERIES

Номер: US20220149381A1
Автор: MANIYANGANAM AHAMED IRSHAD, MITRA DEBANJAN, NARAYAN SRI, TRINH PHONG THANH
Принадлежит:

An electrode for a battery includes an iron-containing substrate and a cobalt ferrite layer disposed over the iron-containing substrate. Advantageously, the cobalt ferrite layer inhibits corrosion of the iron-containing substrate. A nickel hydroxide layer is disposed over the cobalt ferrite layer. A battery incorporating the electrode is also provided. 1. An electrode for a battery , the electrode comprising:a iron-containing substrate;a cobalt ferrite layer disposed over the iron-containing substrate, the cobalt ferrite layer inhibiting corrosion of the iron-containing substrate; anda nickel hydroxide layer disposed over the cobalt ferrite layer.2. The electrode of wherein the cobalt ferrite layer is a cobalt ferrite spinel layer.3. The electrode of claim 1 , wherein the cobalt ferrite layer is doped with lithium ions to form a doped cobalt ferrite layer to increase the electrically conductivity compared to an undoped cobalt ferrite layer.4. The electrode of claim 3 , wherein the doped cobalt ferrite layer includes lithium ions in an amount from about 5 to 40 mole %.5. The electrode of wherein the cobalt ferrite layer has specific capacity of at least 0.15 Ah gat C/5 discharge rate.6. The electrode of wherein the iron-containing substrate is a mesh claim 1 , sintered wool claim 1 , or foam.7. The electrode of claim 1 , wherein the cobalt ferrite layer has a thickness from about 50 to 200 nm.8. The electrode of claim 1 , wherein the cobalt ferrite layer has a thickness from about 70 to 100 nm.9. The electrode of claim 1 , wherein the cobalt ferrite layer has formula CoFeOwhere x is 1.8 to 2.2 and y is 3.6 to 4.4.10. The electrode of claim 1 , wherein the cobalt ferrite layer has formula CoFeO.11. The electrode of claim 1 , wherein the iron-containing substrate is a steel substrate.12. The electrode of claim 11 , wherein the iron-containing substrate is a steel mesh substrate.13. The electrode of claim 1 , wherein the electrode is a positive electrode in an alkaline ...

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Номер записи: 71
28-03-2019 дата публикации

PROCESSES AND COMPOSITIONS TO IMPROVE HIGH-TEMPERATURE PERFORMANCE OF NIMH BATTERIES

Номер: US20190097213A1
Автор: Young Kwo
Принадлежит:

Provided are electrochemical cells and methods of their formation that include a negative electrode with a functional protective coating that protects against surface passivation by reducing growth of a passivating layer on the active material surface and that functions synergistically with a silicate containing alkaline electrolyte to reduce thickness of newly formed passivation layers that occur as a result of decrepitation during cycling. The cells and methods have particular advantages of improved cycle life at when exposed to high temperatures. 1. An electrochemical cell comprising:a positive electrode;a negative electrode;a separator; andan alkaline electrolyte comprising a silicate;wherein the negative electrode comprises a conductive substrate, an electrochemically active material layer coated onto the substrate, and a metal oxide/hydroxide coating layer, the coating layer directly on the active material layer opposite the substrate, the coating layer comprising a rare earth element.2. The electrochemical cell of wherein the rare earth is yttrium.3. The electrochemical cell of wherein the coating layer has a thickness of 0.01 to 10 micrometers.4. The electrochemical cell of wherein the electrochemically active material has a primary phase structure selected from the group consisting of BCC solid solution claim 1 , AB claim 1 , AB claim 1 , and AB.5. The electrochemical cell of wherein the electrochemically active material comprises one or more rare earth elements.6. The electrochemical cell of wherein the rare earth element within the electrochemically active material is selected from the group consisting of Y claim 5 , La claim 5 , Ce claim 5 , Pr claim 5 , Nd claim 5 , other rare earth elements claim 5 , or combinations thereof.7. The electrochemical cell of wherein the electrochemically active material further comprises nickel.8. The electrochemical cell of wherein the electrochemical cell has a residual capacity of 80% or greater at cycle 100.9. The ...

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Номер записи: 72
13-04-2017 дата публикации

NICKEL-ZINC BATTERY

Номер: US20170104241A1
Автор: HAYASHI Hiroshi, KITOH Kenshin, YAMADA Naohito
Принадлежит: NGK Insulators, Ltd.

Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The separator is disposed in a hermetic container to separate a positive-electrode chamber accommodating a positive electrode and a positive-electrode electrolyte from a negative-electrode chamber accommodating a negative electrode and a negative-electrode electrolyte. The positive-electrode chamber has an extra positive-electrode space having a volume that meets a variation in amount of water in association with reaction at the positive electrode during charge and discharge of the battery, and the negative-electrode chamber has an extra negative-electrode space having a volume meeting a variation in amount of water in association with reaction at the negative electrode during charge and discharge of the battery. The nickel-zinc battery further includes a gas flow channel that connects the extra positive-electrode space to the extra negative-electrode space such that the spaces are in gas communication with each other. 1. A nickel-zinc battery comprising:a positive electrode comprising nickel hydroxide and/or nickel oxyhydroxide;a positive-electrode electrolytic solution comprising an alkali metal hydroxide, the positive electrode being immersed in the positive-electrode electrolytic solution;a negative electrode comprising zinc and/or zinc oxide;a negative-electrode electrolytic solution comprising an alkali metal hydroxide, the negative electrode being immersed in the negative-electrode electrolytic solution;a hermetic container accommodating the positive electrode, the positive-electrode electrolytic solution, the negative electrode, and the negative-electrode electrolytic solution; anda separator exhibiting hydroxide ion conductivity and water impermeability, the separator being disposed in the hermetic container so as to separate a positive-electrode chamber accommodating the positive electrode and the positive-electrode ...

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Номер записи: 73
08-04-2021 дата публикации

Electrode Assemblies Incorporating Ion Exchange Materials

Номер: US20210104746A1
Автор: Farmer Joseph Collin, Gorer Alexander, KHOKHLOV Pavel
Принадлежит:

A rechargeable battery cell includes an electrode and an ion exchange material arranged to define an interpenetrating interface with at least a portion of the electrode. Providing an interpenetration interface in intimate contact can include completely or partially embedding the electrode in the ion exchange material, or alternatively, surrounding the electrode or discrete portions of the electrode with a thin film of ion exchange material. In one embodiment, electrodes can be particles fully or partially embedded, coated with, or partially contacting ion exchange material. 1. A rechargeable battery cell , comprisingan electrode; andan ion exchange material arranged to define an interpenetrating interface with at least a portion of the electrode.2. The rechargeable battery cell of claim 1 , wherein the electrode further comprises a zinc (Zn) containing anode.3. The rechargeable battery cell of claim 1 , wherein the electrode is a cathode including at least one of nickel hydroxide (Ni(OH)) claim 1 , nickel oxyhydroxide (NiOOH) claim 1 , manganese dioxide (MnO) claim 1 , ferrate salts (Fe(VI)) claim 1 , manganate salts (Mn(VI)) claim 1 , and permanganate salts (Mn (VII)).4. The rechargeable battery cell of claim 1 , wherein the electrode is a cathode comprising one or more additives selected from the group consisting of Bi claim 1 , Cu claim 1 , Sn claim 1 , Pb claim 1 , Ag claim 1 , Co claim 1 , Ni claim 1 , Mg claim 1 , K claim 1 , Li claim 1 , Al claim 1 , Ca claim 1 , Fe claim 1 , Zn claim 1 , V claim 1 , Ba claim 1 , Y claim 1 , Ti claim 1 , Sr claim 1 , wherein the additive is in oxide or hydroxide form.5. The rechargeable battery cell of claim 1 , wherein the electrode at least partially comprises electrode particles sized to be less than 300 microns and packed to have a pore volume less than 50% of total electrode volume.6. The rechargeable battery cell of claim 1 , wherein the ion exchange material further comprises an anion exchange material.7. The ...

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Номер записи: 74
09-06-2022 дата публикации

Negative Electrode Active Material and Battery

Номер: US20220181623A1
Автор: Nakanishi Haruyuki, Sawa Haruo
Принадлежит:

Provided is a negative electrode active material for a battery, the negative electrode active material comprising an iron compound, the iron compound containing a salt of a polyoxygen anion with iron, wherein the polyoxygen anion has a first atom and an oxygen atom, the first atom is at least one type of atom selected from atoms belonging to Group 4, Group 5, Group 6, Group 13, and Group 14 in the periodic table of elements, and a molar ratio of the oxygen atom to the first atom in the polyoxygen anion is more than 1. 1. A negative electrode active material for a battery , the negative electrode active material comprising:an iron compound, the iron compound containing a salt of a polyoxygen anion with iron, whereinthe polyoxygen anion has a first atom and an oxygen atom, the first atom is at least one type of atom selected from atoms belonging to Group 4, Group 5, Group 6, Group 13, and Group 14 in the periodic table of elements, anda molar ratio of the oxygen atom to the first atom in the polyoxygen anion is more than 1.2. The negative electrode active material according to claim 1 , wherein the polyoxygen anion is at least one selected from carbonate ion and aluminate ion.3. The negative electrode active material according to claim 1 , wherein a molar percentage of the polyoxygen anion to the iron in the iron compound is 5 mol % or more.4. The negative electrode active material according to claim 1 , wherein the iron compound further contains nickel.5. The negative electrode active material according to claim 1 , wherein the iron compound further contains zinc.6. A battery comprising:a positive electrode;a negative electrode; andan electrolyte solution, wherein{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the negative electrode includes the negative electrode active material according to .'}7. The battery according to claim 6 , wherein the battery is at least one selected from a nickel-iron battery claim 6 , a manganese-iron battery claim 6 , and an iron-air ...

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Номер записи: 75
18-04-2019 дата публикации

POSITIVE ELECTRODE AND ALKALINE SECONDARY BATTERY INCLUDING THE SAME

Номер: US20190115589A1
Автор: KIKUCHI Takuro, Okumura Motoyoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A positive electrode for an alkaline secondary battery includes a positive electrode substrate and a positive electrode composite material that is provided on at least one surface of the positive electrode substrate. The positive electrode substrate contains a Ni foil or a Ni-plated steel foil. The positive electrode composite material contains a positive electrode active material. The positive electrode active material contains nickel hydroxide coated with cobalt oxyhydroxide. A weight per unit area of the positive electrode composite material with respect to the one surface of the positive electrode substrate is 0.02 g/cmto 0.035 g/cm. 1. A positive electrode for an alkaline secondary battery comprising:a positive electrode substrate containing a Ni foil or a Ni-plated steel foil; anda positive electrode composite material that is provided on at least one surface of the positive electrode substrate,wherein the positive electrode composite material contains a positive electrode active material,the positive electrode active material contains nickel hydroxide coated with cobalt oxyhydroxide, and{'sup': 2', '2, 'a weight per unit area of the positive electrode composite material with respect to the one surface of the positive electrode substrate is 0.02 g/cmto 0.035 g/cm.'}2. The positive electrode according to claim 1 , wherein a thickness of the positive electrode substrate is 5 μm to 35 μm.3. An alkaline secondary battery comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the positive electrode according to .'}4. The alkaline secondary battery according to claim 3 , further comprisinga negative electrode containing a hydrogen storage alloy. The disclosure of Japanese Patent Application No. 2017-200860 filed on Oct. 17, 2017 including the specification, drawings and abstract is incorporated herein by reference in its entirety.The present disclosure relates to a positive electrode and an alkaline secondary battery including the same.As a substrate of a ...

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Номер записи: 76
05-05-2016 дата публикации

SODIUM MOLTEN SALT BATTERY

Номер: US20160126599A1
Автор: FUKUNAGA Atsushi, Imazaki Eiko, Inazawa Shinji, Nitta Koji, Numata Koma, Sakai Shoichiro
Принадлежит:

Provided is a sodium molten-salt battery having good charge-discharge cycle characteristics. The sodium molten-salt battery includes a positive electrode that contains a positive electrode active material, a negative electrode that contains a negative electrode active material, and a molten-salt electrolyte that contains a sodium salt and an ionic liquid that dissolves the sodium salt. The negative electrode active material contains non-graphitizable carbon. The ionic liquid is a salt of a bis(sulfonyl)imide anion and a first onium cation that does not cause a Faradaic reaction with the non-graphitizable carbon. The molten-salt electrolyte contains a second onium cation in an amount of 1,000 ppm by mass or less. The second onium cation is represented by a general formula (1): RRRRN where Rto Rare each independently a hydrogen atom or a methyl group. 1. A sodium molten-salt battery comprising:a positive electrode that contains a positive electrode active material;a negative electrode that contains a negative electrode active material; anda molten-salt electrolyte that contains a sodium salt and an ionic liquid that dissolves the sodium salt,wherein the negative electrode active material contains non-graphitizable carbon,the ionic liquid is a salt of a bis(sulfonyl)imide anion and a first onium cation that does not cause a Faradaic reaction with the non-graphitizable carbon,{'sup': 1', '2', '3', '4', '+, 'the molten-salt electrolyte contains a second onium cation in an amount of 1,000 ppm by mass or less, and the second onium cation is represented by a general formula (1): RRRRN'}{'sup': 1', '4, 'where Rto Rare each independently a hydrogen atom or a methyl group.'}2. The sodium molten-salt battery according to claim 1 ,wherein the first onium cation is a nitrogen-containing onium cation, andthe molten-salt electrolyte contains the second onium cation in an amount of 5 to 500 ppm by mass.3. The sodium molten-salt battery according to claim 1 , wherein the first onium ...

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Номер записи: 77
03-05-2018 дата публикации

Anode material and battery

Номер: US20180123126A1
Автор: Makio Kon
Принадлежит: Toyota Motor Corp

An object of the present disclosure is to provide an anode material with a high capacity maintenance rate. To achieve the above object, the present disclosure provides an anode material to be used for a battery that contains an aqueous liquid electrolyte, the anode material comprising: a hydrogen storing alloy that reversibly stores and releases hydrogen; wherein the hydrogen storing alloy contains Ti, Cr, and V as main components, and is an alloy that contains a BCC phase as a main phase; a lattice constant of the BCC phase is 3.01 Å or more and 3.10 Å or less; and the Cr content in the hydrogen storing alloy is 20 at % or more.

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Номер записи: 78
04-05-2017 дата публикации

Hazard Mitigation Through Gas Flow Communication Between Battery Packs

Номер: US20170125760A1
Автор: Hermann Weston Arthur
Принадлежит: TESLA MOTORS, INC.

A system and method for mitigating the effects of a thermal event within a non-metal-air battery pack is provided in which the hot gas and material generated during the event is directed into the metal-air cells of a metal-air battery pack. The metal-air cells provide a large thermal mass for absorbing at least a portion of the thermal energy generated during the event before it is released to the ambient environment. As a result, the risks to vehicle passengers, bystanders, first responders and property are limited. 1. A battery system comprising:a first battery pack having a plurality of metal-air cells, a first air inlet, a second air inlet, and an air outlet;a second battery pack having a plurality of non-metal-air cells and a hot gas outlet;an air passageway coupling the hot gas outlet of the second battery pack to the second air inlet of the first battery pack; anda first valve configured to control air flow out of the hot gas outlet, through the air passageway, through the second air inlet, through at least a portion of the plurality of metal-air cells, and out of the air outlet, the first valve having a first position that permits air flow and a second position that prevents air flow, wherein during normal operation the first valve is in the second position, and wherein the first valve is configured to switch from the second position to the first position upon an occurrence of a thermal event within the second battery pack.2. The battery system of claim 1 , wherein the first valve is configured to switch from the second position to the first position at a preset temperature within the second battery pack that corresponds to at least one of the plurality of non-metal-air cells entering thermal runaway.3. The battery system of claim 1 , further comprising a system controller coupled to the first valve and to at least one temperature sensor within the second battery pack claim 1 , wherein the system controller is configured to switch the first valve from the ...

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Номер записи: 79
04-05-2017 дата публикации

NICKEL HYDRODGEN SECONDARY BATTERY

Номер: US20170125804A1
Автор: Ishida Jun, Kai Takuya
Принадлежит:

A nickel hydrogen secondary battery includes an outer can and an electrode group accommodated in the outer can in a sealed state together with an alkaline electrolyte. The electrode group includes a positive electrode and a negative electrode having a separator sandwiched therebetween, the alkaline electrolyte includes NaOH as the main solute, and the negative electrode includes a hydrogen storage alloy having a composition represented by a general formula: LnMgNiM, wherein Ln is at least one element selected from rare earth elements and Zr; M is Al; subscripts x, y and z satisfy the following relations, respectively: 0≦x≦0.05, 3.3≦y≦3.6, and 0≦z≦0.50; and the content of La among rare earth elements in Ln is 25% or less. 1. A nickel hydrogen secondary battery comprising a container and an electrode group accommodated in the container in a sealed state together with an alkaline electrolyte , whereinthe electrode group comprises a positive electrode and a negative electrode having a separator sandwiched therebetween,the alkaline electrolyte comprises NaOH as a main solute, and{'sub': 1-x', 'x', 'y-z', 'z, 'the negative electrode comprises a hydrogen storage alloy having a composition represented by a general formula: LnMgNiM, wherein Ln is at least one element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Zr; M is at least one element selected from the group consisting of V, Nb, Ta, Cr, Mo, Fe, Ga, Zn, Sn, In, Cu, Al, Si, P, and B; subscripts x, y and z satisfy the following relations, respectively: 0≦x≦0.05, 3.3≦y≦3.6, and 0≦z≦0.50; and the content of La in Ln is 25% or less.'}2. The nickel hydrogen secondary battery according to claim 1 , comprising Al as M in the general formula.3. The nickel hydrogen secondary battery according to claim 2 , wherein the subscript z satisfies the following relation: 0.17≦z≦0.50.4. The nickel hydrogen secondary battery according to claim 3 , wherein the subscript z ...

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Номер записи: 80
31-07-2014 дата публикации

LOW TEMPERATURE BATTERY WITH MOLTEN SODIUM-FSA ELECTROLYTE

Номер: US20140210422A1
Автор: Bhavaraju Sai, Robins Mathew
Принадлежит: Ceramatec, Inc.

The present invention provides a molten sodium secondary cell. In some cases, the secondary cell includes a sodium metal negative electrode, a positive electrode compartment that includes a positive electrode disposed in a molten positive electrolyte comprising Na-FSA (sodium-bis(fluorosulonyl)amide), and a sodium ion conductive electrolyte membrane that separates the negative electrode from the positive electrolyte. One disclosed example of electrolyte membrane material includes, without limitation, a NaSICON-type membrane. Non-limiting examples of the positive electrode include Ni, Zn, Cu, or Fe. The cell is functional at an operating temperature between about 100° C. and about 150° C., and preferably between about 110° C. and about 130° C. 1. A molten sodium secondary cell , comprising:a sodium metal negative electrode, which electrochemically oxidizes to release sodium ions during discharge and electrochemically reduces sodium ions to sodium metal during recharging;a positive electrode compartment comprising a positive electrode disposed in a molten positive electrolyte comprising Na-FSA (sodium bis(fluorosulonyl)amide); anda sodium ion conductive electrolyte membrane that separates the sodium metal negative electrode from the molten positive electrolyte,wherein the sodium metal negative electrode is molten and in contact with the conductive electrolyte membrane as the cell operates, and wherein the cell functions at an operating temperature between about 100° C. and about 150° C.2. The secondary cell of claim 1 , wherein the positive electrode comprises Ni.3. The secondary cell of claim 1 , wherein the positive electrode comprises Zn.4. The secondary cell of claim 1 , wherein the positive electrode comprises Cu.5. The secondary cell of claim 1 , wherein the positive electrode comprises Fe.6. The secondary cell of claim 1 , wherein the sodium ion conductive electrolyte membrane comprises a NaSICON-type material.7. The secondary cell of claim 2 , wherein the ...

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Номер записи: 81
31-07-2014 дата публикации

LOW TEMPERATURE SECONDARY CELL WITH SODIUM INTERCALATION ELECTRODE

Номер: US20140212707A1
Автор: Bhavaraju Sai, Robins Mathew
Принадлежит: Ceramatec, Inc.

The present invention provides a molten sodium secondary cell. In some cases, the secondary cell includes a sodium metal negative electrode, a positive electrode compartment that includes a positive electrode disposed in a molten positive electrolyte comprising Na—FSA (sodium-bis(fluorosulonyl)amide), and a sodium ion conductive electrolyte membrane that separates the negative electrode from the positive electrolyte. One disclosed example of electrolyte membrane material includes, without limitation, a NaSICON-type membrane. The positive electrode includes a sodium intercalation electrode. Non-limiting examples of the sodium intercalation electrode include NaMnO, NaCrO, NaNiO, and NaFe(PO). The cell is functional at an operating temperature between about 100° C. and about 150° C., and preferably between about 110° C. and about 130° C. 1. A molten sodium secondary cell , comprising:a negative electrode compartment comprising a sodium metal negative electrode, which electrochemically oxidizes to release sodium ions during discharge and electrochemically reduces sodium ions to sodium metal during recharging;a positive electrode compartment comprising a positive electrode disposed in a molten positive electrolyte comprising NaFSA (sodium bis(fluorosulonyl)amide), wherein the positive electrode comprises a sodium intercalation electrode; anda sodium ion conductive electrolyte membrane that separates the sodium metal negative electrode from the molten positive electrolyte,wherein the sodium metal negative electrode is molten and in contact with the conductive electrolyte membrane as the cell operates, and wherein the cell functions at an operating temperature between about 100° C. and about 150° C.2. The secondary cell of claim 1 , wherein the sodium ion conductive electrolyte membrane comprises a NaSICON-type material.3. The secondary cell of claim 2 , wherein the NaSICON-type material comprises a composite membrane having a porous layer and a dense functional layer.4. ...

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Номер записи: 82
31-07-2014 дата публикации

CATHODE COMPOSITION FOR PRIMARY BATTERY

Номер: US20140212736A1
Автор: CHEN Kaimin
Принадлежит: Medtronic, Inc.

In some examples, a primary battery comprising a cathode comprising at least one active material and at least one of a metal oxide and metal fluoride, wherein the active material exhibits a first discharge capacity and the at least one of metal oxide and metal fluoride exhibits a second discharge capacity at a voltage lower than the first discharge capacity; an anode comprising a metal as an electron source; and an electrolyte between the cathode and anode. The metal reacts with the electrolyte below a third discharge capacity at a voltage lower than the second discharge capacity to form a gas, where the metal reacts with the active material at the first discharge capacity, and, following the consumption of the active material of the cathode, the metal reacts with the at least one of metal oxide and metal fluoride of the cathode prior to reacting with the electrolyte below the third discharge capacity. 1. A primary battery comprising:a cathode comprising at least one active material and at least one of a metal oxide and metal fluoride, wherein the active material exhibits a first discharge capacity and the at least one of metal oxide and metal fluoride exhibits a second discharge capacity at a voltage lower than the first discharge capacity;an anode comprising a metal as an electron source; andan electrolyte between the cathode and anode, wherein the metal reacts with the electrolyte below a third discharge capacity at a voltage lower than the second discharge capacity to form a gas, andwherein the metal reacts with the active material at the first discharge capacity, and, following the consumption of the active material of the cathode, the metal reacts with the at least one of metal oxide and metal fluoride of the cathode prior to reacting with the electrolyte below the third discharge capacity.2. The battery of claim 1 , wherein the second discharge capacity is between about 2.6 Volts and about 1.8 Volts.3. The battery of claim 1 , wherein the cathode includes an ...

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Номер записи: 83
01-09-2022 дата публикации

SURFACE TREATMENT METHOD AND DEVICE FOR HYDROGEN ABSORBING ALLOY POWDER

Номер: US20220274164A1
Автор: Kodama Masashi, Okumura Motoyoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A surface treatment method for a hydrogen absorbing alloy powder of the present disclosure is used for a surface treatment on a hydrogen absorbing alloy powder containing rare earth elements and nickel as constituent elements, including an immersion process in which the hydrogen absorbing alloy powder is immersed in an aqueous alkaline solution; and a removal process in which a liquid containing the hydrogen absorbing alloy powder immersed in the aqueous alkaline solution is introduced into a liquid cyclone, and undesired substances having a smaller specific gravity than the hydrogen absorbing alloy powder adhered to the surface of the hydrogen absorbing alloy powder are removed. 1. A surface treatment method for a hydrogen absorbing alloy powder containing rare earth elements and nickel as constituent elements , comprising:an immersion process in which the hydrogen absorbing alloy powder is immersed in an aqueous alkaline solution; anda removal process in which a liquid containing the hydrogen absorbing alloy powder immersed in the aqueous alkaline solution is introduced into a liquid cyclone, and undesired substances having a smaller specific gravity than the hydrogen absorbing alloy powder adhered to the surface of the hydrogen absorbing alloy powder are removed.2. The method according to claim 1 ,wherein the liquid cyclone includes a liquid inlet, a lower outlet through which particles having a larger specific gravity are discharged, and an upper outlet through which particles having a smaller specific gravity are discharged, andwherein, in the removal process, water is applied to the hydrogen absorbing alloy powder discharged from the lower outlet of the liquid cyclone and introduced again to the liquid inlet.3. The method according to claim 1 , comprisinga hydrogen desorption process in which the hydrogen absorbing alloy powder is brought into contact with an oxidant and hydrogen is desorbed, after the immersion process,wherein the removal process is performed ...

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Номер записи: 84
10-05-2018 дата публикации

FILM EXTERIOR BODY FOR BATTERIES, AND BATTERY HAVING SAME

Номер: US20180131042A1
Автор: ASANO YUYA, Sano Yoko, Ueda Tomohiro
Принадлежит:

In a battery including an electrode assembly including a positive electrode, a negative electrode, and an electrolyte layer interposed therebetween, and an exterior body, configured to hermetically house the electrode assembly, a film exterior body for a battery is used. The film exterior body for a battery includes a gas barrier layer, and a seal layer that is stacked on one surface of the gas barrier layer and includes a first resin. The gas barrier layer includes a first metal layer having a Young's modulus of 65×10N/mor less, and a thickness Tof the first metal layer is more than 5 μm and 200 μm or less. 1. A film exterior body for a battery , comprising:a gas barrier layer; anda seal layer that is stacked on one surface of the gas barrier layer, and includes a first resin,{'sup': 9', '2, 'sub': '1', "wherein the gas barrier layer includes a first metal layer having a Young's modulus of 65×10N/mor less, and a thickness Tof the first metal layer is more than 5 μm and 200 μm or less."}2. The film exterior body for a battery according to claim 1 , wherein the first metal layer includes at least one selected from the group consisting of tin claim 1 , indium claim 1 , and magnesium.3. The film exterior body for a battery according to claim 1 , wherein the thickness Tof the first metal layer is 80% or more with respect to a thickness Tof the gas barrier layer.4. The film exterior body for a battery according to claim 1 , wherein the gas barrier layer further comprises a metal oxide layer formed on at least one surface of the first metal layer.5. The film exterior body for a battery according to claim 1 , wherein the gas barrier layer further comprises a second metal layer claim 1 , the second metal layer has a Young's modulus of more than 65×10N/m claim 1 , and has a thickness Tthat is less than 20% with respect to the thickness To of the gas barrier layer.6. The film exterior body for a battery according to claim 1 , wherein the thickness Tof the first metal layer is ...

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Номер записи: 85
19-05-2016 дата публикации

Electrolytes and Metal Hydride Batteries

Номер: US20160141722A1
Автор: NG Simon K.Y., Yan Shuli, Young Kwo
Принадлежит:

Metal hydride batteries comprising an electrolyte composition which comprises an aqueous solution comprising potassium hydroxide (KOH) and one or more halide and/or oxyacid salts exhibit reduced degradation of the anode material during operation. The salts are for instance alkali metal salts. Anode materials exhibit for instance <100% of the degradation of the same anode material in the same battery when replacing the electrolyte composition with 30 weight percent (wt %) aqueous KOH and the conductivity of the electrolyte composition is for instance ≧85% of 30 wt % aqueous KOH. Anode materials are for example ABx high capacity hydrogen storage alloys comprising Mg where x is from about 0.5 to about 5 and which has a discharge capacity of ≧400 mAh/g. 1. A metal hydride battery comprising at least one negative electrode comprising an active anode material , at least one positive electrode comprising an active cathode material , a casing having said electrodes positioned therein and an electrolyte composition , wherethe anode material comprises an ABx hydrogen storage alloy where x is from about 0.5 to about 5 andthe electrolyte composition comprises an aqueous solution comprising KOH and one or more salts selected from the group consisting of halide salts and oxyacid salts.2. A battery according to where the salts contain cations selected from the group consisting of alkali metal ions.3. A battery according to where the electrolyte composition comprises halide salts.4. A battery according to where the electrolyte composition comprises oxyacid salts.5. A battery according to where the salts contain anions selected from the group consisting of F claim 1 , Cl claim 1 , Br claim 1 , I claim 1 , CO claim 1 , NO claim 1 , PO claim 1 , SO claim 1 , IO claim 1 , WO claim 1 , CHO and CHO.6. A battery according to where the anode material comprises Mg.7. A battery according to where the anode material comprises ≧20 at % Mg.8. A battery according to where the anode material has ...

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Номер записи: 86
19-05-2016 дата публикации

Electrolytes and Metal Hydride Batteries

Номер: US20160141727A1
Автор: Li Wentao, Nei Jean, Wang Lixin, Wong Diana, Young Kwo
Принадлежит:

A metal hydride battery comprising at least one negative electrode, at least one positive electrode, a casing having said electrodes positioned therein and an electrolyte composition, where the electrolyte composition comprises an ionic compound selected from the group consisting of protic acids, protic ammonium compounds, protic oxonium compounds, aprotic ammonium compounds, aprotic oxonium compounds, aprotic phosphonium compounds and alkali or alkali earth metal salts; or where the electrolyte composition comprises an ionic compound selected from the group consisting of alkali or alkali earth metal hydroxides and alkali or alkali earth metal alkoxides and an organic solvent; or where the electrolyte composition comprises an alkali metal hydroxide, water and one or more further components selected from the group consisting of organic solvents, further ionic compounds and additives; or where the electrolyte composition comprises an ionic compound selected from the group consisting of carboxylate compounds and carboxylic acids. Ionic compounds include ionic liquids and salts. Metal hydride batteries comprising certain electrolyte compositions have a nominal open-circuit voltage of from about 1.5 V to about 5.0 V. 2. A battery according to where the one or more ionic compounds contain a cation selected from the group consisting of H claim 1 , alkali ion claim 1 , alkali earth ion claim 1 , ammonium claim 1 , methylammonium claim 1 , ethylammonium claim 1 , dimethylammonium claim 1 , diethylammonium claim 1 , trimethylammonium claim 1 , triethylammonium claim 1 , tributylammonium claim 1 , diethylmethylammonium claim 1 , hydroxyethylammonium claim 1 , methoxymethylammonium claim 1 , dibutylammonium claim 1 , methylbutylammonium claim 1 , anilinium claim 1 , pyridinium claim 1 , 2-methylpyridinium claim 1 , imidazolium claim 1 , 1-methylimidazolium claim 1 , 1 claim 1 ,2-dimethylimidazolium claim 1 , imidazolinium claim 1 , 1-ethylimidazolium claim 1 , 1-(4-sulfobutyl)- ...

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Номер записи: 87
19-05-2016 дата публикации

Electrochemical storage device having a state detector

Номер: US20160141732A1
Автор: Carsten Schuh, Michael Kuhne
Принадлежит: SIEMENS AG

An electrochemical storage device including a state detector, has an electrochemical storage device, which has a wall that surrounds an electrochemical storage material. The state detector has at least one ultrasonic transmitter and at least one ultrasonic receiver, which are attached to the side of the wall facing away from the electrochemical storage material. The electrochemical storage material is subject to a volume change during operation of the storage device, and the electrochemical storage material is liquid during operation of the storage device and is in direct contact with the wall and the ultrasonic transmitter and the ultrasonic receiver are attached to the wall in such a way that the ultrasonic transmitter and the ultrasonic receiver are acoustically coupled to the wall.

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Номер записи: 88
07-08-2014 дата публикации

NICKEL-IRON BATTERY WITH HIGH CYCLE LIFE

Номер: US20140220431A1
Автор: Ogg Randy
Принадлежит: ENCELL TECHNOLOGY, INC.

The present invention provides one with a high cycle life Ni—Fe battery. The battery uses a particular electrolyte. The resulting characteristics of cycle life, as well as power and charge retention, are much improved over conventional Ni—Fe batteries. 1. A battery comprising a nickel cathode , an iron anode with the battery exhibiting a cycle life of at least about 10 ,000 cycles.2. The battery of claim 1 , further comprising an electrolyte comprised of sodium hydroxide claim 1 , lithium hydroxide and a sulfide.3. The battery of claim 1 , further comprising a polyolefin battery separator.4. The battery of claim 1 , which is a sealed battery.5. The battery of claim 1 , wherein the iron anode is comprised of a single layer of a conductive substrate coated on at least one side with a coating comprising an iron active material and a binder.6. The battery of claim 5 , wherein the substrate is coated on both sides.7. The battery of claim 1 , further exhibiting a specific energy of at least about 105 watt hours/kg.8. The battery of claim 1 , further exhibiting an energy density of at least about 183 watt hours/liter.9. The battery of claim 1 , further exhibiting a specific power of at least about 2100 watts/kg.10. The battery of claim 1 , further exhibiting a power density of at least about 3660 watts/liter.11. The battery of claim 1 , further exhibiting a watt hour efficiency of at least about 95%.12. The battery of claim 1 , further exhibiting a charge retention claim 1 , measured as capacity at 28 days 20° C. claim 1 , of at least about 95%.13. The battery of claim 1 , exhibitinga specific power of at least about 2100 watts/kg; anda power density of at least about 3660 watts/liter.14. The battery of claim 13 , exhibitinga specific energy of at least about 105 watt hours/kg;an energy density of at least about 183 watt hours/liter;a watt hour efficiency of at least about 95%; anda charge retention of at least about 95%.15. The battery of claim 2 , exhibitinga specific ...

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Номер записи: 89
07-08-2014 дата публикации

LAYERED IRON ELECTRODE

Номер: US20140220433A1
Автор: OGG Randy Gene, Welch Craig Hinton
Принадлежит: ENCELL TECHNOLOGY, INC.

The present invention provides one with a novel coated iron electrode. Provided is an iron based electrode comprising a single layer conductive substrate coated on at least one side with a multilayered coating, with each coating layer comprising an iron active material, and preferably a binder. The coating is comprised of at least two layers. Each layer has at least a different porosity or composition than an adjacent layer. The iron based electrode is useful in alkaline rechargeable batteries, particularly as a negative electrode in a Ni—Fe battery. 1. An iron electrode which comprises a single layer of a conductive substrate coated on at least one side with a coating comprising an iron active material , with the coating comprising at least two layers.2. The iron electrode of claim 1 , wherein the coating comprises two layers.3. The iron electrode of claim 2 , wherein the two layers have different porosities.4. The iron electrode of claim 2 , wherein the two layers have different compositions.5. The iron electrode of claim 1 , wherein the coating comprises three layers.6. The iron electrode of claim 5 , wherein at least two of the three layers have different porosities.7. The iron electrode of claim 5 , wherein at least two of the three layers have different compositions.8. The iron electrode of claim 1 , wherein each coating layer also comprises a binder.9. The iron electrode of claim 1 , wherein at least one of the coating layers comprises a pore former.10. The electrode of claim 1 , wherein the iron active material comprises an iron metal or iron oxide species.11. The electrode of claim 8 , wherein the binder comprises polyvinyl alcohol.12. The electrode of claim 1 , wherein at least one coating layer on at least one side comprises a sulfur claim 1 , antimony claim 1 , selenium claim 1 , and tellurium additive claim 1 , or mixture thereof.13. The electrode of claim 1 , wherein the layered coating is on both sides of the substrate.14. The electrode of claim 1 , ...

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Номер записи: 90
28-05-2015 дата публикации

INSULATING CONTAINER FOR BATTERY, BATTERY CONTROL DEVICE, AND BATTERY-FAILURE DETECTION METHOD

Номер: US20150147607A1
Автор: Fukuhara Motohiro
Принадлежит:

A battery assembly heat insulating container includes a box body and a lid body. The box body has an opening on its upper surface, and contains a battery module formed by connecting a plurality of battery cells in series or in parallel. The lid body is placed on the upper surface of the box body. The battery assembly heat insulating container is adapted to provide heat insulation between an external space and an internal space formed by the box body and the lid body and configured to contain the battery module. A circuit member configured to detect leakage of active material from the battery module is provided at the bottom of the box body. 1. A battery assembly heat insulating container , comprising:a box body containing a battery assembly formed by connecting a plurality of battery cells in series or in parallel, an opening being formed on an upper surface of the box body; anda lid body placed on the upper surface of the box body,the battery assembly heat insulating container being adapted to provide heat insulation between an external space and an internal space being formed by the box body and the lid body and containing the battery assembly,wherein a circuit member configured to detect leakage of active material from the battery assembly is provided at a bottom of the box body, andwherein the circuit member has at least one lead wire wired separately from a heater wire.2. The battery assembly heat insulating container according to claim 1 , wherein the lead wire is spread over an entire graphic pattern formed by projecting at least the battery assembly on the bottom of the box body.3. The battery assembly heat insulating container according to claim 2 , wherein the lead wire is spread in a comb teeth pattern.4. The battery assembly heat insulating container according to claim 1 , wherein the circuit member comprises:a first insulating layer stacked on the heater wire for allowing the lead wire to be placed on the first insulating layer; anda second insulating ...

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Номер записи: 91
28-05-2015 дата публикации

Sodium Secondary Battery

Номер: US20150147619A1
Автор: Bhavaraju Sai, CHAE Je Hyun, Eccleston Alexis L., Joshi Ashok V., Kim Jeong Soo, KOH Won Sang, Lee Seung Ok, Park Dai In, Robins Mathew Richard
Принадлежит:

Provided is a sodium secondary battery capable of operating at a low temperature. More particularly, the sodium secondary battery according to the present invention includes: an anode containing sodium; a cathode containing a transition metal and an alkali metal halide; and a sodium ion conductive solid electrolyte provided between the anode and the cathode, wherein the cathode is impregnated in a molten salt electrolyte containing a sodium.metal halogen salt including at least two kinds of halogens. 1. A sodium secondary battery comprising:an anode containing sodium;a cathode containing a transition metal and an alkali metal halide; anda sodium ion conductive solid electrolyte provided between the anode and the cathode, {'br': None, 'sup': 1', '2, 'sub': n', '4−n, 'NaM(X)(X)\u2003\u2003Chemical Formula 1'}, 'wherein the cathode is impregnated in a molten salt electrolyte represented by the following Chemical Formula 1.'}In Chemical Formula 1,M is an element selected from metal and metalloid groups having an oxidation number of 3;{'sup': 1', '2, 'Xand Xare each independently selected from halogen elements; and'}n is more than 0 but less than 4 (0 Подробнее

Номер записи: 92
18-05-2017 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NICKEL-HYDROGEN SECONDARY BATTERY, NICKEL-HYDROGEN SECONDARY BATTERY INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND METHOD OF EVALUATING POSITIVE ELECTRODE ACTIVE MATERIAL

Номер: US20170141401A1
Автор: DOI Shuuichi, Imoto Yuzo, Ito Takeshi, Kataoka Yuji, YAMAZAKI Takashi, Yasuoka Shigekazu
Принадлежит:

A nickel-hydrogen secondary battery includes an electrode group including a separator, a positive electrode and a negative electrode, the positive electrode includes a positive electrode active material, the positive electrode active material includes a composite particle including a compound of Co and a compound of Ni, and the ratio R represented by A/B satisfies a relationship of R≧0.3, when the amount of jumping in the X-ray absorption fine structure spectrum of the Co in 7600 to 7800 eV and the amount of jumping in the X-ray absorption fine structure spectrum of the Ni in 8300 to 8500 eV obtained by measurement according to a conversion electron yield method are defined as A and B, respectively. 1. A positive electrode active material for a nickel-hydrogen secondary battery , comprising:a composite particle comprising a compound of Co and a compound of Ni, whereina ratio R represented by A/B satisfies a relationship of R≧0.3, when an amount of jumping in an X-ray absorption fine structure (XAFS) spectrum of the Co in 7600 to 7800 eV and an amount of jumping in an X-ray absorption fine structure (XAFS) spectrum of the Ni in 8300 to 8500 eV obtained by measurement according to a conversion electron yield method are defined as A and B, respectively.2. The positive electrode active material for a nickel-hydrogen secondary battery according to claim 1 , wherein:the composite particle comprises a base particle comprising nickel hydroxide as the compound of Ni, and a conductive layer covering a surface of the base particle and comprising the compound of Co, andthe conductive layer comprises an alkali metal.3. The positive electrode active material for a nickel-hydrogen secondary battery according to claim 2 , wherein the alkali metal is Na.4. The positive electrode active material for a nickel-hydrogen secondary battery according to claim 2 , wherein the alkali metal is Na and Li.5. A nickel-hydrogen secondary battery comprising;a container, and the electrode group ...

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Номер записи: 93
18-05-2017 дата публикации

HIGH EFFICIENCY IRON ELECTRODE AND ADDITIVES FOR USE IN RECHARGEABLE IRON-BASED BATTERIES

Номер: US20170141434A1
Автор: Aniszfeld Robert, Malkhandi Souradip, Manohar Aswin, Narayan Sri R., Prakash G.K. Surya, Yang Bo
Принадлежит:

An iron electrode and a method of manufacturing an iron electrode for use in an iron-based rechargeable battery are disclosed. In one embodiment, the iron electrode includes carbonyl iron powder and one of a metal sulfide additive or metal oxide additive selected from the group of metals consisting of bismuth, lead, mercury, indium, gallium, and tin for suppressing hydrogen evolution at the iron electrode during charging of the iron-based rechargeable battery. An iron-air rechargeable battery including an iron electrode comprising carbonyl iron is also disclosed, as is an iron-air battery wherein at least one of the iron electrode and the electrolyte includes an organosulfur additive. 129.-. (canceled)30. A nickel-iron rechargeable battery comprisinga. an iron electrode comprising carbonyl iron, a polymeric binder and bismuth sulfide, wherein bismuth sulfide is present in an amount from 5 to 10 w/w % of the weight of the iron electrode;b. a nickel electrode spaced from the iron electrode; andc. an alkaline electrolyte in contact with the iron electrode and the nickel electrode.31. The nickel-iron rechargeable battery of claim 30 , wherein during cycling the battery the iron electrode comprises bismuth and iron sulfide.32. The nickel-iron rechargeable battery of claim 30 , wherein the polymeric binder is present in an amount from 5 to 30 w/w % of the weight of the iron electrode.33. The nickel-iron rechargeable battery of claim 30 , wherein the iron electrode is porous.34. The nickel-iron rechargeable battery of claim 30 , wherein the alkaline electrolyte comprises KOH.35. A nickel-iron rechargeable battery comprisinga. an iron electrode comprising carbonyl iron, a polymeric binder, a bismuth oxide additive and a bismuth sulfide additive;b. a nickel electrode spaced from the iron electrode; andc. an alkaline electrolyte in contact with the iron electrode and the nickel electrode.36. The nickel-iron rechargeable battery of claim 35 , wherein during cycling of the ...

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Номер записи: 94
30-04-2020 дата публикации

ALKALINE SECONDARY BATTERY

Номер: US20200136139A1
Автор: Kojima Yoshitsugu, Nakanishi Haruyuki
Принадлежит:

An alkaline secondary battery includes at least a case, a positive electrode, a negative electrode, and an electrolyte solution. The case accommodates the positive electrode, the negative electrode, and the electrolyte solution. The positive electrode includes manganese dioxide and nickel hydroxide. The negative electrode includes a hydrogen storage alloy. 1. An alkaline secondary battery comprising at least:a case;a positive electrode;a negative electrode; andan electrolyte solution,the case accommodating the positive electrode, the negative electrode, and the electrolyte solution,the positive electrode including manganese dioxide and nickel hydroxide,the negative electrode including a hydrogen storage alloy.2. The alkaline secondary battery according to claim 1 , whereinthe hydrogen storage alloy has an equilibrium dissociation pressure of 0.2 MPa or higher,the case is filled with hydrogen gas, andthe hydrogen gas has a pressure equal to or higher than the equilibrium dissociation pressure of the hydrogen storage alloy. This nonprovisional application claims priority to Japanese Patent Application No. 2018499923 filed on Oct. 24, 2018, with the Japan Patent Office, the entire contents of which are hereby incorporated by reference.The present disclosure relates to an alkaline secondary battery.Japanese Patent Laying-Open No. 2-223150 discloses an alkaline rechargeable battery (an alkaline secondary battery) that includes manganese dioxide as a main constituent of a positive electrode and a hydrogen storage alloy as a main constituent of a negative electrode.Nickel-metal hydride (Ni-MH) batteries have been in practical use.A Ni-MH battery is an alkaline secondary battery. A Ni-MH battery includes nickel hydroxide [Ni(OH)] as a positive electrode active material and a hydrogen storage alloy as a negative electrode active material. Nickel is relatively expensive and its price tends to fluctuate greatly. Therefore, an inexpensive positive electrode active material has ...

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Номер записи: 95
21-08-2014 дата публикации

MOLTEN SALT BATTERY

Номер: US20140234685A1
Автор: FUKUNAGA Atsushi, Inazawa Shinji, Nitta Koji, Sakai Shoichiro
Принадлежит: Sumitomo Electric Industries, Ltd.

A separator for use in a molten salt battery has the problem that due to usage specific to the molten salt battery, the separator is placed under mechanical, thermal and chemical stress, so that cracking or rupture easily occurs, leading to a degradation in battery performance such as an internal short-circuit. The molten salt battery of the present invention includes a separator containing a metal oxide, particularly aluminum oxide and/or zirconium oxide in an amount of 75% or more. The separator improves mechanical, thermal and chemical resistance, and thus an internal short-circuit ascribable to the separator is hard to occur, so that the molten salt battery can be stably operated for a long period of time. The separator has high heat stability, so that the safety of the molten salt battery can be improved. 1. A molten salt battery using a molten salt as an electrolyte , comprising:a positive electrode;a negative electrode; anda separator existing between the positive electrode and the negative electrode to isolate both the electrodes from each other, the separator containing a metal oxide material in an amount of 75% by mass or more.2. The molten salt battery according to claim 1 , wherein the separator contains aluminum oxide and/or zirconium oxide in an amount of 75% by mass or more.3. The molten salt battery according to claim 2 , wherein a remainder of components of the separator includes other metal oxides with substantially no organic compound contained.4. The molten salt battery according to claim 1 , wherein a remainder of components of the separator includes an organic compound.5. The molten salt battery according to claim 4 , wherein the organic compound is selected from a polyolefin and a polyamide.6. The molten salt battery according to claim 2 , wherein a remainder of components of the separator includes an organic compound.7. The molten salt battery according to claim 6 , wherein the organic compound is selected from a polyolefin and a polyamide. ...

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Номер записи: 96
21-08-2014 дата публикации

NICKEL IRON BATTERY EMPLOYING AN UNTREATED POLYOLEFIN SEPARATOR WITH A SURFACTANT IN THE ELECTROLYTE

Номер: US20140234706A1
Автор: Ogg Randy, Seidel Alan P.
Принадлежит: ENCELL TECHNOLOGY, INC.

Provided is a nickel-iron battery. The battery comprises a positive nickel electrode, an iron negative electrode, an electrolyte comprising a surfactant, and a non-polar separator. In one embodiment, the non-polar separator is comprised of a polyolefin, and the surfactant comprises a zwitterionic surfactant. 1. A nickel-iron battery comprising a nickel positive electrode , an iron negative electrode , an electrolyte comprising a surfactant , and a non-polar separator.2. The nickel-iron battery of claim 1 , wherein the separator is comprised of a polyolefin.3. The nickel-iron battery of claim 2 , wherein the separator is comprised of polypropylene or polyethylene.4. The nickel-iron battery of claim 1 , wherein the electrolyte comprises NaOH.5. The nickel-iron battery of claim 1 , wherein the surfactant is a low-foaming electrolyte.6. The nickel-iron battery of claim 1 , wherein the surfactant comprises an anionic surfactant.7. The nickel-iron battery of claim 1 , wherein the surfactant comprises a cationic surfactant comprising a tertiary amine.8. The nickel-iron battery of claim 1 , wherein the surfactant is a zwitterionic surfactant.9. The nickel-iron battery of claim 8 , wherein the surfactant comprises a sultaine.10. The nickel-iron battery of claim 9 , wherein the surfactant comprises an alkylether hydroxypropyl sultaine. This application claims priority to U.S. Provisional Application Ser. No. 61/761,312, filed Feb. 6, 2013; and U.S. Provisional Application Ser. No. 61/907,958, filed Nov. 22, 2013, which applications are incorporated herein by reference in their entirety.1. Field of the InventionThe present invention is in the technical field of energy storage devices. More particularly, the present invention is in the technical field of rechargeable batteries employing an iron electrode, and the separators used in those batteries.2. State of the ArtThe nickel iron (Ni—Fe) battery was independently developed by Edison in the United States and by Junger in ...

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Номер записи: 97
16-05-2019 дата публикации

NEGATIVE ELECTRODE FOR NICKEL HYDROGEN SECONDARY BATTERY, AND NICKEL HYDROGEN SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE

Номер: US20190148723A1
Автор: Ishida Jun, Ohata Shota, Saguchi Akira
Принадлежит:

A nickel hydrogen secondary battery has an electrode group including a separator , a positive electrode , and a negative electrode . The negative electrode has a negative electrode core, and a negative electrode mixture held on the negative electrode core. The negative electrode mixture contains a hydrogen absorbing alloy and a water repellent. The hydrogen absorbing alloy has a composition represented by the general formula: LnMgNiAlM, where Ln represents at least one element selected from rare earth elements, Ti and Zr; M represents at least one element selected from V, Nb, Ta, and the like, and the subscripts a, b, x and y satisfy relations represented by 0.05≤a≤0.30, 0≤b≤0.50, 0≤x<0.05 and 2.8≤y≤3.9, respectively. The hydrogen absorbing alloy has a structure of an ABtype. The water repellent comprises a perfluoroalkoxyalkane. 1. A negative electrode for a nickel hydrogen secondary battery , the negative electrode comprising:a negative electrode core; anda negative electrode mixture held on the negative electrode core,wherein the negative electrode mixture comprises a hydrogen absorbing alloy and a water repellent,{'sub': 1-x', 'x', 'y-a-b', 'a', 'b, 'wherein the hydrogen absorbing alloy has a composition represented by the general formula LnMgNiAlM, where Ln represents at least one element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y, Ti and Zr, M represents at least one element selected from V, Nb, Ta, Cr, Mo, Mn, Fe, Co, Ga, Zn, Sn, In, Cu, Si, P and B, and the subscripts a, b, x and y satisfy relations represented by 0.05≤a≤0.30, 0≤b≤0.50, 0≤x<0.05 and 2.8≤y≤3.9, respectively,'}{'sub': 2', '7, 'wherein the hydrogen absorbing alloy has a structure of an ABtype, and'}wherein the water repellent comprises a perfluoroalkoxyalkane.2. A nickel hydrogen secondary battery comprising:a container; andan electrode group accommodated in the container together with an alkali electrolyte solution,wherein the electrode group comprises a ...

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Номер записи: 98
09-06-2016 дата публикации

SEALED BATTERY AND METHOD OF MANUFACTURE

Номер: US20160164067A1
Автор: Kobayashi Keiichiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A sealed battery according to the disclosure includes: a case provided with a case body having an opening therein and a lid that is sized so as to be capable of closing the opening and that has an electrolyte fill port; an electrode assembly that is housed in the case; and an electrolyte solution. The lid is provided with a filler plug that is welded to the lid so as to close the fill port. The lid has an outside surface with a region thereon subjected to electrolyte-repelling treatment so as to surround the weld where the filler plug is welded. 1. A sealed battery comprising:a case provided with a case body having an opening therein and a lid that is sized so as to be capable of closing the opening and that has an electrolyte fill port;an electrode assembly that is housed in the case; andan electrolyte solution, wherein the lid is provided with a filler plug that is welded to the lid so as to close the fill port, andthe lid has an outside surface with a region thereon subjected to electrolyte-repelling treatment so as to surround the weld where the filler plug is welded.2. The sealed battery according to claim 1 , wherein the outside surface of the lid further has claim 1 , near the region on the lid surface subjected to electrolyte-repelling treatment claim 1 , a region subjected to electrolyte affinity-imparting treatment.3. The sealed battery according to claim 1 , wherein the fill port in the lid has claim 1 , on a peripheral wall thereof claim 1 , a retainer for setting thereon the filler plug claim 1 , and wherein a surface on which the filler plug is set in the retainer has been subjected to the electrolyte-repelling treatment.4. The sealed battery according to claim 2 , wherein the fill port in the lid has claim 2 , on a peripheral wall thereof claim 2 , a step which has a surface facing the filler plug that has been subjected to electrolyte affinity-imparting treatment and is capable of retaining the electrolyte solution at least temporarily.5. A method of ...

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Номер записи: 99
07-06-2018 дата публикации

BATTERY WITH COATED ACTIVE MATERIAL

Номер: US20180159178A1
Автор: ALBANO Fabio, Carter Cody Ryan, Favors Zachary, McIntyre Melissa D., Weisenstein Adam, Wilkins Howard F.
Принадлежит:

An anode of a battery includes active material particles each coated with a metal oxide to form a nanoscale conformal shell there around. The shells are configured to, during charge, confine reduction of the active material particles to within the shells and to prevent dendritic growth and shape change. 1. A battery comprising:an electrode assembly including an anode, a cathode, and a separator, wherein the anode includes active material particles each coated with a metal oxide to form a nanoscale conformal shell there around configured to, during charge, confine reduction of the active material particle to within the shell and to prevent dendritic growth and shape change.2. The battery of claim 1 , wherein the active material particles include metal oxides.3. The battery of claim 1 , wherein the metal oxide is AlO claim 1 , CeO claim 1 , CrO claim 1 , GaO claim 1 , HfO claim 1 , InO claim 1 , LaO claim 1 , MnO claim 1 , MoO claim 1 , SnO claim 1 , TiO claim 1 , VO claim 1 , YO claim 1 , or ZrO.4. The battery of claim 1 , wherein the metal oxide is chemically and mechanically stable claim 1 , and ionically conductive in an alkaline electrolyte.5. The battery of claim 1 , wherein the nanoscale conformal shell has a thickness of 1 to 100 nanometers.6. The battery of claim 1 , wherein the battery is a nickel-zinc battery claim 1 , a silver-zinc battery claim 1 , or a zinc-air battery.7. A battery comprising:an electrode assembly including an anode, a cathode, and a separator, wherein the cathode includes active material particles each coated with a metal oxide to form a nanoscale conformal shell there around configured to chemically stabilize the active material particle within the shell and to prevent shape change.8. The battery of claim 7 , wherein the active material particles include active carbons claim 7 , hydroxides claim 7 , perovskites claim 7 , spinels claim 7 , or transition metal oxides.9. The battery of claim 7 , wherein the metal oxide is AlO claim 7 , ...

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Номер записи: 100