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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 10766. Отображено 100.

26-01-2012 дата публикации

Nickel hydroxide electrode for rechargeable batteries

Номер: US20120018670A1

Автор: Jeffrey Phillips, Mingming Geng, Samaresh Mohanta

Принадлежит: PowerGenix Systems Inc

The nickel hydroxide particles for a nickel hydroxide electrode may be treated using an alkaline solution of a strong oxidizing agent such as sodium or potassium persulfate to modify the surface nickel hydroxide structure. The resulting modified surface structure has been found to impart various benefits to electrodes formed from the nickel hydroxide. It is believed that the oxidation of cobalt compounds at the surface of the nickel hydroxide particles results in a highly conductive cobalt compound that plays an important role in the high reliability, high stability and high capacity utilization of nickel electrodes as described herein.

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Номер записи: 1

26-01-2012 дата публикации

High Discharge Capacity Lithium Battery

Номер: US20120021266A1

Автор: Jack W. Marple, Michael W. Wemple

Принадлежит: Eveready Battery Co Inc

A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode.

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Номер записи: 2

26-01-2012 дата публикации

Composite electrode and electronic device including the same

Номер: US20120021280A1

Автор: Daisuke Ito, Natsuko Katase, Shinichi Uesaka

Принадлежит: Sony Corp

A composite electrode includes a plate-shaped conductor; a plurality of auxiliary electrodes disposed such that ends of the plurality of auxiliary electrodes are connected to a surface of the plate-shaped conductor and the plurality of auxiliary electrodes extend from the surface of the plate-shaped conductor; and an active material layer formed between the plurality of auxiliary electrodes so as to be in contact with the plate-shaped conductor. When the height of the plurality of auxiliary electrodes is defined as h, the center-to-center spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes or the spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes is h or more and 2h or less.

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Номер записи: 3

29-03-2012 дата публикации

Lithium battery with charging redox couple

Номер: US20120077084A1

Автор: Boris Kozinsky, Jasim Ahmed, Jens Grimminger, John F. Christensen, Paul Albertus, Timm Lohman

Принадлежит: ROBERT BOSCH GMBH

In accordance with one embodiment, an electrochemical cell includes a negative electrode including a form of lithium, a positive electrode spaced apart from the negative electrode and including an electron conducting matrix, a separator positioned between the negative electrode and the positive electrode, an electrolyte including a salt, and a charging redox couple located within the positive electrode, wherein the electrochemical cell is characterized by the transfer of electrons from a discharge product located in the positive electrode to the electron conducting matrix by the charging redox couple during a charge cycle.

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Номер записи: 4

03-05-2012 дата публикации

Cathode material for lithium secondary batteries and lithium secondary battery containing the same

Номер: US20120107686A1

Автор: Jik-Soo Kim, Joeng-Hun Ju, Kwang -Sun Ryu, Kyung Shin, Suk-Joon Park, Young-Min Chung, Yu-Rim Bak

Принадлежит: ECOPRO CO LTD

This invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same, and particularly to a positive electrode active material for a lithium secondary battery, in which a lithium composite oxide having a composition of LiNi 1-x M x O 2 (wherein M represents one or a combination of two elements selected from the group consisting of Co, Al, Mn, Mg, Fe, Cu, Ti, Sn and Cr, and 0.96≦x≦1.05) is surface-modified using carbon or an organic compound, thereby achieving superior stability and improved high-rate capability compared to conventional positive electrode active materials, and to a lithium secondary battery including the same.

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Номер записи: 5

17-05-2012 дата публикации

Electronically conductive polymer binder for lithium-ion battery electrode

Номер: US20120119155A1

Автор: Gao Liu, Honghe Zheng, Shidi Xun, Vincent S. Battaglia

Принадлежит: UNIVERSITY OF CALIFORNIA

A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.

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Номер записи: 6

31-05-2012 дата публикации

Battery system containing phase change material-containing capsules in interior configuration thereof

Номер: US20120135281A1

Автор: Hong-Kyu Park, Seungdon Choi

Принадлежит: LG Chem Ltd

Provided is a battery system in which an interior part of a battery structure includes phase-change particles including a capsule and phase-change materials. The phase-change materials have a high latent heat of phase change at a specific temperature, and are encapsulated in the capsule. The capsule is made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.

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Номер записи: 7

19-07-2012 дата публикации

Positive Active Material for Rechargeable Lithium Battery, Method of Manufacturing the Same and Rechargeable Lithium Battery Using the Same

Номер: US20120183853A1

Автор: Chang-Ui Jeong, Hee-Young Chu, Jae-Hyuk Kim, Jong-Seo Choi, Myung-Hwan Jeong, Sung-Hwan Moon

Принадлежит: Samsung SDI Co Ltd

A positive active material for a rechargeable lithium battery includes a positive active material compound including a metal compound for intercalating and deintercalating lithium, a coating particle having an embedded portion embedded into the active material compound and a protruding portion protruding from the surface of the active material, and a rechargeable lithium battery including the positive active material.

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Номер записи: 8

13-09-2012 дата публикации

Aqueous paste for electrochemical cell, electrode plate for electrochemical cell obtained by applying the aqueous paste, and battery comprising the electrode plate

Номер: US20120231337A1

Автор: Akinori Etoh, Gen Miyata, Naoto Nishimura, Syumpei Nishinaka, Takahiro Matsuyama, Takehito Mitate

Принадлежит: Individual

The aqueous paste for an electrochemical cell of the present invention comprises an aqueous dispersion for an electrochemical cell that comprises an olefin copolymer (a); an active material; and a conductive assistant, wherein the olefin copolymer (a) has a weight average molecular weight of not less than 50,000 and is at least one kind selected from a random propylene copolymer (a-1) containing 50% by weight to less than 85% by weight of a structural unit derived from propylene; an acid-modified random propylene copolymer (a-2) obtained by modifying the copolymer (a-1) with an acid; and an ethylene-(meth) acrylic acid copolymer (a-3) containing 5% by weight to less than 25% by weight of a structural unit derived from (meth) acrylic acid.

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Номер записи: 9

18-10-2012 дата публикации

Composite particles for electrochemical element electrode

Номер: US20120264014A1

Автор: Fumiaki Tsuchiya, Mayumi Fukumine

Принадлежит: Individual

The present invention provides a method of producing a composite particle for high density electrochemical element electrodes in electrochemical elements having low internal resistance and high capacitance. Slurry containing an electric conductive material and a binder is obtained, and the slurry is sprayed to a fluidized electrode active material to carry out fluidized-granulation, and further particles obtained by the fluidized-granulation are rolling-fluidized granulated, and thereby, composite particle for electrochemical element electrode, containing electrode active materials, electric conductive materials, and binders, and being structured of an outer layer portion (outer shell portion) and an inner layer portion (core portion) are obtained.

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Номер записи: 10

14-03-2013 дата публикации

Cathode for a Battery

Номер: US20130065126A1

Автор: "ONeill Cory", Caldwell Marissa, Kaye Steven, Tong Wei

Принадлежит: Wildcat Discovery Technologies, Inc.

An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material. 1. A method of making an electrode for an electrochemical cell , comprising:combining a coating compound characterized by having an intrinsic conductivity and an active electrode material to form a mixture;heating the mixture to form a conductively coated active electrode material, wherein the mixture is heated for a time and at a temperature that limits degradation of the active electrode material;mixing the conductively coated active electrode material with a binder material and a conductive additive to form an electrode-forming mixture; andheating the electrode-forming mixture to form the electrode.2. The method of wherein the coating compound comprises an organic material.3. The method of wherein the coating compound comprises a conjugated core in which at least 90% of the carbon atoms are sp or sphybridized.4. The method of wherein the coating compound comprises a compound in which at least 35% of the carbon atoms are sp or sphybridized.5. The method of wherein the coating compound comprises a conjugated core in which about 100% of the carbon atoms are sp or sphybridized.6. The method of wherein the coating compound is heated at less than about 450 degrees C.7. The method of wherein the coating compound is heated for a time in a range of from about 0 hours to about 6 hours.8. The method of wherein the coating compound comprises a naphthalene core.9. The method of wherein the coating compound comprises a pentacene core.10. The method of wherein the coating compound comprises a perylene core.11. An electrode for an electrochemical cell claim 1 , comprising:an active electrode material;a binder material; andan intrinsically conductive coating wherein the coating is applied ...

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Номер записи: 11

04-04-2013 дата публикации

Lithium secondary battery

Номер: US20130084489A9

Автор: Eriko Ishiko, Tetsuya Higashizaki, Toshinori Sugimoto, Yuji Hoshihara

Принадлежит: Dai Ichi Kogyo Seiyaku Co Ltd

A lithium ion secondary battery capable of charging in 15 minutes or less has a cathode with a composite layer on a surface of a collector having an active material and a conducting agent, an anode with an active material, an insulator between the cathode and anode, and an electrolyte with lithium ions. The cathode active material is represented by Li x MPO 4 , where M is a metal atom and 0<x<2 and the conducting agent contains particles between 3 μm and 12 μm in size and in an amount of 1% or more by weight.

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Номер записи: 12

20-06-2013 дата публикации

AQUEOUS INK FOR THE PRINTING OF ELECTRODES FOR LITHIUM BATTERIES

Номер: US20130157105A1

Автор: Giroud Nelly, Picard Lionel, Rouault Helene, Solan Sebastien

Принадлежит: Commissariat A L'Energie Atomique Et Aux Energies Alternatives

It comprises at least one active electrode material and at least one water-soluble or water-dispersible conductive polymer, advantageously PEDOT/PSS. 1. An aqueous ink for the forming of electrodes by printing , comprising at least one active electrode material and at least one water-soluble or water-dispersible conductive polymer , said polymer being made at least of the PEDOT/PSS association having a viscosity ranging between 20 and 100 dPa·s.2. The aqueous ink of claim 1 , wherein the active electrode material is selected from the group comprising LiFePO claim 1 , CoO claim 1 , LiTiO claim 1 , Cgr claim 1 , Si claim 1 , SiC claim 1 , LiNiCoAlOwith x+y+z=1.3. The aqueous ink of claim 1 , wherein the viscosity of the water-soluble or water-dispersible conductive polymer is on the order of 60 dPa·s.4. The aqueous ink of of claim 1 , wherein the viscosity of the aqueous ink ranges between 0.1 Pa·s and 25 Pa·s claim 1 , and more advantageously still between 0.5 and 15 Pa·s.5. The aqueous ink of of claim 1 , wherein the quantity of active electrode material ranges between 25 and 50% with respect to the weight of the aqueous ink claim 1 , more advantageously between 40 and 50%.6. The aqueous ink of claim 1 , wherein the quantity of water-soluble or water-dispersible conductive polymer ranges between 1.5 and 4% with respect to the weight of the aqueous ink claim 1 , more advantageously between 1.5 and 2.5%.7. The aqueous ink of claim 1 , wherein the aqueous ink further comprises at least one additive selected from the group comprising: electronic conductors such as carbon fibers.8. A use of the aqueous ink of for the forming of a positive or negative electrode claim 1 , by printing of said aqueous ink on a current collector.9. A method for manufacturing an electrode comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'depositing the aqueous ink of on a current collector, said deposition being advantageously performed by inkjet printing, flexography, ...

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Номер записи: 13

11-07-2013 дата публикации

Cathode for a Battery

Номер: US20130177806A1

Автор: "ONeill Cory", Caldwell Marissa, Kaye Steven, Keogh David, Tong Wei

Принадлежит: Wildcat Discovery Technologies, Inc.

An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material. 1. A method of making an electrode for an electrochemical cell , comprising:combining a coating compound characterized by having an intrinsic conductivity and an active electrode material to form a mixture, wherein the active electrode material comprises a fluoride compound;heating the mixture to form a conductively coated active electrode material, wherein the mixture is heated for a time and at a temperature that limits degradation of the active electrode material;mixing the conductively coated active electrode material with a binder material and a conductive additive to form an electrode-forming mixture; andheating the electrode-forming mixture to form the electrode.2. The method of wherein the coating compound comprises an organic material.3. The method of wherein the coating compound comprises a conjugated core in which at least 90% of the carbon atoms are sp or sphybridized.4. The method of wherein the coating compound comprises a compound in which at least 35% of the carbon atoms are sp or sphybridized.5. The method of wherein the coating compound comprises a conjugated core in which about 100% of the carbon atoms are sp or sphybridized.6. The method of wherein the coating compound is heated at less than about 450 degrees C.7. The method of wherein the coating compound is heated for a time in a range of from about 0 hours to about 6 hours.8. The method of wherein the coating compound comprises a naphthalene core.9. The method of wherein the coating compound comprises a pentacene core.10. The method of wherein the coating compound comprises an anthracene core.11. The method of wherein the active electrode material comprises a metal fluoride.12. The method of wherein the ...

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Номер записи: 14

26-09-2013 дата публикации

NON-AQUEOUS SECONDARY BATTERY

Номер: US20130252095A1

Автор: Kamine Hirokazu, Kishimi Mitsuhiro, Kita Fusaji

Принадлежит: Hitachi, Ltd.

The non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte and a separator. The positive electrode includes a positive electrode mixture layer containing a positive electrode active material, a conductive polymer, an organic silane compound, a conductive assistant and a binder, the conductive polymer is polythiophene or a derivative thereof, and the content of the conductive polymer is 0.05 to 0.5 mass % with respect to the total mass of the positive electrode mixture layer. 1. A non-aqueous secondary battery comprising a positive electrode , a negative electrode , a non-aqueous electrolyte and a separator ,wherein the positive electrode includes a positive electrode mixture layer containing a positive electrode active material, a conductive polymer, an organic silane compound, a conductive assistant and a binder,the conductive polymer is polythiophene or a derivative thereof andthe content of the conductive polymer is 0.05 to 0.5 mass % with respect to the total mass of the positive electrode mixture layer.2. The non-aqueous secondary battery according to claim 1 , wherein the surface of the positive electrode active material is covered with the organic silane compound.3. The non-aqueous secondary battery according to claim 1 , wherein the content of the organic silane compound is 0.05 to 3.0 mass % with respect to the total mass of the positive electrode mixture layer.4. The non-aqueous secondary battery according to claim 1 , wherein the content of the binder is 0.5 to 5.0 mass % with respect to the total mass of the positive electrode mixture layer.5. The non-aqueous secondary battery according to claim 1 , wherein the relationship A/B≧1 is established claim 1 , where A is the content of the conductive assistant in mass % with respect to the total mass of the positive electrode mixture layer and B is the content of the binder in mass % with respect to the total mass of the positive ...

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Номер записи: 15

09-01-2014 дата публикации

ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME

Номер: US20140011083A1

Автор: ARIMA Satoshi, ASAKO Isao, Matsuyama Takahiro, Nishijima Motoaki, Nishimura Naoto, Nishinaka Shumpei, Utsumi Hisayuki

Принадлежит: SHARP KABUSHIKI KAISHA

An electrode for non-aqueous electrolyte secondary batteries includes a current collector having principal surfaces facing each other and an active material layer which contains an active material, a binder, and a conductive material and which is placed on at least one of the principal surfaces of the current collector. The sum of the volume of the active material per unit area of the current collector and the volume of the conductive material per unit area of the current collector is 9.70×10cm/cmto 24.6×10cm/cm, the volume of the active material being calculated from the average particle size D50 of the active material, the volume of the conductive material being calculated from the average particle size D50 of the conductive material. The pore volume of the active material layer per unit area of the current collector is 6.00×10cm/cmto 20.0×10cm/cm. 1. An electrode for non-aqueous electrolyte secondary batteries , comprising:a current collector having a pair of principal surfaces facing each other; andan active material layer which contains an active material, a binder, and a conductive material and which is placed on at least one of the principal surfaces of the current collector,{'sup': −3', '3', '2', '−3', '3', '2', '−3', '3', '2', '−3', '3', '2, 'wherein the sum of the volume of the active material per unit area of the current collector and the volume of the conductive material per unit area of the current collector is 9.70×10cm/cmto 24.6×10cm/cm, the volume of the active material being calculated from the average particle size D50 of the active material, the volume of the conductive material being calculated from the average particle size D50 of the conductive material, and the pore volume of the active material layer per unit area of the current collector is 6.00×10cm/cmto 20.0×10cm/cm.'}2. The electrode according to claim 1 , comprising active material layers placed on both of the principal surfaces of the current collector claim 1 , wherein the weight of ...

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Номер записи: 16

30-01-2014 дата публикации

Bimodal type anode active material and lithium secondary battery including the same

Номер: US20140027679A1

Автор: Byung Hun Oh, Hyun Woong Yun, Je Young Kim, Ye Ri Kim

Принадлежит: LG Chem Ltd

Provided is an anode active material including a compound of Chemical Formula 1 below that may realize a high-density electrode and may simultaneously improve adhesion to the electrode and high rate capability, wherein the compound of Chemical Formula 1 includes first primary particles and secondary particles, and a ratio of the first primary particles to the secondary particles is in a range of 5:95 to 50:50: Li x M y O z [Chemical Formula 1] where M is any one independently selected from the group consisting of titanium (Ti), tin (Sn), copper (Cu), lead (Pb), antimony (Sb), zinc (Zn), iron (Fe), indium (In), aluminum (Al), and zirconium (Zr) or a mixture of two or more thereof; and x, y, and z are determined according to an oxidation number of M.

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Номер записи: 17

20-02-2014 дата публикации

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Номер: US20140050975A1

Автор: Cha Jun-Kyu, Choi Kwi-Seok, Kim Myoung-Sun, Seo Na-Ri, Son Dong-Ho

Принадлежит: Samsung SDI Co., Ltd.

Disclosed is a negative active material that includes active material primary particles; a conductive material; and a composite binder. 1. A negative active material , comprisingactive material primary particles including at least one of a metal, a semi-metal, an alloy thereof, and an oxide thereof;a conductive material; anda composite binder.2. The negative active material of claim 1 , wherein the composite binder comprises a binder polymer; an organic/inorganic binder; inorganic particles claim 1 , organic particles claim 1 , or a combination thereof.3. The negative active material of claim 1 , wherein the active material primary particles have a volume expansion ratio of greater than or equal to about 50% relative to an initial time at a first charge.4. The negative active material of claim 1 , wherein the active material primary particles comprise at least one of titanium (Ti) claim 1 , nickel (Ni) claim 1 , silicon (Si) claim 1 , tin (Sn) claim 1 , aluminum (Al) claim 1 , germanium (Ge) claim 1 , lead (Pb) claim 1 , indium (In) claim 1 , zinc (Zn) claim 1 , iron (Fe) claim 1 , copper (Cu) claim 1 , an alloy thereof claim 1 , an oxide thereof claim 1 , or a combination thereof.5. The negative active material of claim 1 , wherein the active material primary particles have an average particle diameter of less than or equal to about 3 μm.6. The negative active material of claim 1 , wherein the active material primary particles comprise titanium (Ti) claim 1 , nickel (Ni) claim 1 , and silicon (Si).7. The negative active material of claim 6 , wherein the active material primary particles include from about 60% to about 80% silicon (Si) claim 6 , from about 10% to about 30% nickel (Ni) claim 6 , and from about 10% to about 30% titanium (Ti) based on the total mass of the particles.8. The negative active material of claim 7 , wherein the active material primary particles include from about 65% to about 75% of silicon (Si) claim 7 , from about 15% to about 25% of ...

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Номер записи: 18

27-03-2014 дата публикации

Cathode composite material and lithium ion battery using the same

Номер: US20140087264A1

Автор: Cai-Yun Nan, Jun Lu, Qing Peng, Ya-Dong Li

Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a spinel type lithium manganese oxide. The coating layer comprises a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.

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Номер записи: 19

27-03-2014 дата публикации

Cathode composite material and lithium ion battery using the same

Номер: US20140087266A1

Автор: Ding-Sheng Wang, Jun Lu, Qing Peng, Wei-Yang Wang, Ya-Dong Li

Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a lithium cobalt oxide. The coating layer includes a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.

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Номер записи: 20

01-01-2015 дата публикации

Robust porous electrodes for energy storage devices

Номер: US20150004480A1

Автор: Charles W. Holzwarth, Donald S. Gardner

Принадлежит: Intel Corp

Electrodes, energy storage devices using such electrodes, and associated methods are disclosed. In an example, an electrode for use in an energy storage device can comprise porous silicon having a plurality of channels and a surface, the plurality of channels opening to the surface; and a structural material deposited within the channels; wherein the structural material provides structural stability to the electrode during use.

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Номер записи: 21

01-01-2015 дата публикации

ELECTRODE AND SECONDARY BATTERY INCLUDING THE SAME

Номер: US20150004487A1

Автор: KIM Daehong, Lee Min Hee, PARK Tae Jin

Принадлежит: LG CHEM, LTD.

Disclosed is an electrode for secondary batteries including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector wherein a conductive material is coated to a thickness of 1 to 80 μm on the current collector and the electrode mixture is coated on a coating layer of the conductive material so as to improve electrical conductivity. 1. An electrode for secondary batteries comprising an electrode mixture comprising an electrode active material , binder and conductive material coated on a current collector wherein a conductive material is coated to a thickness of 1 to 80 μm on the current collector and the electrode mixture is coated on a coating layer of the conductive material so as to improve electrical conductivity.2. The electrode according to claim 1 , wherein the conductive material is one claim 1 , two or more selected from the group consisting of graphite claim 1 , carbon nanotube claim 1 , graphene claim 1 , and a conductive polymer.3. The electrode according to claim 2 , wherein the conductive polymer is one claim 2 , two or more selected from the group consisting of polyaniline claim 2 , polypyrrole claim 2 , polyacetylene and polythiophene.4. The electrode according to claim 1 , wherein the conductive material is coated to a thickness of 20 to 70 μm.5. The electrode according to claim 4 , wherein the conductive material is coated to a thickness of 30 to 60 μm.6. The electrode according to claim 1 , wherein the conductive material is coated on 40 to 90% of a total area of the current collector.7. The electrode according to claim 1 , wherein the electrode is a cathode claim 1 , an anode claim 1 , or a cathode and anode.8. The electrode according to claim 7 , wherein the cathode comprises a spinel-structure lithium metal oxide represented by Formula 1 below as a cathode active material:{'br': None, 'sub': x', 'y', '2-y', '4-z', 'z, 'LiMMnOA\u2003\u2003(1)'}wherein 0.9≦x≦1.2 and 0 Подробнее

Номер записи: 22

05-01-2017 дата публикации

Negative active material, lithium battery including the negative active material, and method of preparing the negative active material

Номер: US20170005329A1

Автор: Heeseon CHOI, Jiyeon Kwak, Yeongap Kim, Youngugk KIM

Принадлежит: Samsung SDI Co Ltd

Negative active materials, lithium batteries including the negative active materials, and methods of preparing the negative active materials. The negative active material includes a complex including: a silicon-based core; particles of metal nitride randomly disposed on the silicon-based core, and nanostructures disposed on at least one of the silicon-based core or the metal nitride. The negative active material may improve the electrical conductivity of a negative electrode. Accordingly, a lithium battery including the negative electrode may have improved lifetime characteristics.

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Номер записи: 23

13-01-2022 дата публикации

ULTRATHIN CONFORMAL OCVD PEDOT COATINGS ON POROUS ELECTRODES AND APPLICATIONS THEREOF

Номер: US20220013787A1

Автор: Ashraf Gandomi Yasser, BRUSHETT Fikile, Forner-Cuenca Antoni, Gleason Karen K., Heydari Gharahcheshmeh Meysam, Wan Charles

Принадлежит:

The present disclosure relates to electrodes comprising a polymer film and a substrate, wherein the polymer film has a thickness of about 5 nm to about 600 nm. The present disclosure also relates to electrochemical cells and batteries comprising the electrodes disclosed herein. The present disclosure also relates to methods of making the electrodes disclosed herein. 1. An electrode , comprising a polymer film and a substrate , wherein the polymer film comprises poly(3 ,4-ethylene dioxythiophene) (PEDOT) , polyaniline , polypyrrole , or polythiphene and has a thickness of about 5 nm to about 600 nm.2. (canceled)3. The electrode of claim 1 , wherein the polymer film comprises poly(3 claim 1 ,4-ethylene dioxythiophene) (PEDOT).4. (canceled)5. The electrode of claim 1 , wherein the substrate is porous.6. (canceled)7. The electrode of claim 1 , wherein the substrate is carbonaceous.811-. (canceled)12. The electrode of claim 1 , wherein the substrate is a silicon wafer claim 1 , a trench wafer claim 1 , a metal foam claim 1 , or a metal mesh.13. (canceled)14. The electrode of claim 1 , wherein the structure of the substrate comprises a plurality of pores.1519-. (canceled)20. The electrode of claim 14 , wherein the average distance between each pore is from about 1 to about 1 claim 14 ,000 nm.21. (canceled)22. The electrode of claim 1 , wherein the polymer film has a thickness of about 10 nm to about 300 nm.2329-. (canceled)30. The electrode of claim 1 , wherein the polymer film further comprises a dopant.31. (canceled)32. The electrode of claim 30 , wherein the dopant is an acid.3335-. (canceled)36. The electrode of claim 1 , wherein the structure of the polymer film comprises a plurality of pores.37. (canceled)38. The electrode of claim 1 , wherein the structure of the polymer film comprises a plurality of nodules.3943-. (canceled)44. The electrode of claim 1 , wherein the structure of the electrode comprises a plurality of fibrils or a plurality of fibers.4550-. ( ...

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Номер записи: 24

03-01-2019 дата публикации

SULFUR NANOSPONGE CATHODE FOR LITHIUM-SULFUR BATTERY AND METHODS OF MANUFACTURE THEREOF

Номер: US20190006663A1

Автор: Kushima Akihiro, Li Ju, Niu Junjie, Wang Chao

Принадлежит:

The present invention is directed to lithium-sulfur batteries exhibiting a high capacity, high cycle life with low production cost and improved safety. 1. A cathode comprising a nanostructured sponge having a sulfur-covering-carbon structure prepared by a method comprising:functionalizing the surface of conductive carbon black particles, thereby forming hydroxyl and/or carboxyl groups on the surface of the conductive carbon black particles;dispersing a mixture comprising sulfur particles and at least one surfactant in a matrix of the functionalized conductive carbon black particles; andheating the dispersed sulfur particles and functionalized conductive carbon black particles for a time and to a temperature above the melting point of sulfur, whereby the sulfur forms a coating over the functionalized conductive carbon black particles to form the nanostructured sponge having the sulfur-covering-carbon structure.2. The cathode of claim 1 , comprising sulfur-carbon clusters smaller than about 10 μm.3. A lithium battery comprising an anode claim 1 , the cathode of claim 1 , and an electrolyte.4. The lithium battery of claim 3 , wherein the anode is selected from the group consisting of carbon claim 3 , silicon claim 3 , silicon/carbon composite claim 3 , lithium titanate claim 3 , and tin cobalt alloy.5. The lithium battery of claim 3 , wherein the electrolyte is selected from the group consisting of electrolyte containing lithium salts and combination of linear and cyclic carbonates.6. A nanostructured sponge cathode comprising:a conductive carbon black matrix and sulfur, wherein the sulfur is disposed over the conductive carbon black particles to provide a sulfur-over-carbon structure.7. The nanostructured sponge cathode of claim 6 , wherein the particle size of said conductive carbon black particles ranges from 80 nm to 800 nm.8. The nanostructured sponge cathode of claim 6 , wherein the sulfur is substantially amorphous.9. The nanostructured sponge cathode of claim 6 ...

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Номер записи: 25

14-01-2016 дата публикации

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING SAME

Номер: US20160013481A1

Автор: HA Jeong-Hyun, JEONG Eun-Hye, JUNG Sung-Ho, KIM Yo-Seop

Принадлежит:

The present invention relates to an anode active material for a lithium secondary battery, which comprises a core layer comprising a carbon-silicon composite, and a shell layer comprising a conductive material and a carbonaceous material for fixing the conductive material, uniformly coated on a surface of the core layer; and the preparation method thereof. 1. An anode active material for a secondary battery: comprising ,a core layer comprising a carbon-silicon composite; anda shell layer comprising a conductive material and a carbonaceous material for fixing the conductive material, uniformly coated on a surface of the core layer.2. The anode active material of claim 1 , wherein the core layer has a mass ratio of Si to C of 1:99 to 10:90.3. The anode active material of claim 1 , wherein the core layer comprises at least one carbonaceous material selected from the group consisting of natural or artificial graphite claim 1 , soft carbon claim 1 , hard carbon claim 1 , pitch carbide claim 1 , calcined coke claim 1 , graphene claim 1 , carbon nanotube claim 1 , polymeric carbide claim 1 , and combinations thereof.4. The anode active material of claim 1 , wherein the core layer is in a range of 60% to 99% by weight claim 1 , relative to the anode active material.5. The anode active material of claim 1 , wherein the conductive material in the shell layer comprises at least one selected from the group consisting of carbon black claim 1 , acetylene black claim 1 , Ketjen black claim 1 , furnace black claim 1 , carbon fiber claim 1 , fullerene claim 1 , copper claim 1 , nickel claim 1 , aluminum claim 1 , silver claim 1 , cobalt oxide claim 1 , titanium oxide claim 1 , polyphenylene derivatives claim 1 , polythiophene claim 1 , polyacene claim 1 , polyacetylene claim 1 , polypyrrole claim 1 , polyaniline claim 1 , and combinations thereof.6. The anode active material of claim 1 , wherein the conductive material in the shell layer is in a range of 1% to 40% by weight claim 1 ...

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Номер записи: 26

11-01-2018 дата публикации

CERAMIC GARNET BASED IONICALLY CONDUCTING MATERIAL

Номер: US20180013171A1

Автор: Sakamoto Jeffrey, THOMPSON Travis

Принадлежит:

Disclosed is a ceramic material having a formula of LiAMReO, wherein w is 5-7.5; wherein A is selected from B, Al, Ga, In, Zn, Cd, Y, Sc, Mg, Ca, Sr, Ba, and any combination thereof; wherein x is 0-2; wherein M is selected from Zr, Hf, Nb, Ta, Mo, W, Sn, Ge, Si, Sb, Se, Te, and any combination thereof; wherein Re is selected from lanthanide elements, actinide elements, and any combination thereof; wherein y is 0.01-0.75; wherein z is 10.875-13.125; and wherein the material has a garnet-type or garnet-like crystal structure. The ceramic garnet based material is ionically conducting and can be used as a solid state electrolyte for an electrochemical device such as a battery or supercapacitor. 1. A ceramic material having a formula of LiAMReOwherein w is 5-7.5,wherein A is selected from B, Al, Ga, In, Zn, Cd, Y, Sc, Mg, Ca, Sr, Ba, and any combination thereof,wherein x is 0-2,wherein M is selected from Zr, Hf, Nb, Ta, Mo, W, Sn, Ge, Si, Sb, Se, Te, and any combination thereof,wherein Re is selected from lanthanide elements, actinide elements, and any combination thereof,wherein y is 0.01-0.75,wherein z is 10.875-13.125, andwherein the material has a garnet-type or garnet-like crystal structure.2. The ceramic material of wherein:{'o': {'@ostyle': 'single', '3'}, 'the material has space groups Iad (no. 230).'}3. The ceramic material of wherein:{'sub': '1', 'the material has space groups /4/acd (no. 142).'}4. The ceramic material of wherein:{'o': {'@ostyle': 'single', '3'}, 'the material has space groups Iad (no. 230), and'}{'sub': '1', 'the material has space groups /4/acd (no. 142).'}5. The ceramic material of wherein:the material at least partially has a tetragonal crystal structure.6. The ceramic material of wherein:{'sup': '−5', 'the material has a total ionic conductivity greater than 10S/cm.'}7. The ceramic material of wherein:{'sup': '−5', 'the material has a total lithium ionic conductivity greater than 10S/cm.'}8. The ceramic material of wherein:the material has ...

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Номер записи: 27

14-01-2021 дата публикации

MULTILAYER BODY AND METHOD FOR PRODUCING SAME

Номер: US20210013495A1

Автор: AKIMOTO Junji, MAMIYA Mikito

Принадлежит:

A multilayer body is provided that is used as the negative electrode of a lithium-ion secondary battery that has a high capacity and is excellent in terms of safety, economic efficiency, and cycle characteristics. The multilayer body has a conductive substrate and a composite layer provided on the conductive substrate. The composite layer includes a plurality of particles of silicon oxide and a conductive substance present in gaps between the plurality of particles of silicon oxide. The average particle diameter of the particles of silicon oxide is 1.0 μm or less. The multilayer body further has a conductive layer that is provided on the composite layer and contains a conductive substance. The conductive layer has a thickness of 20 μm or less. 1. A multilayer body , comprising:a conductive substrate; anda composite layer that is provided on the conductive substrate and includes a plurality of particles of silicon oxide having an average particle diameter of 1.0 μm or less and a conductive substance present in gaps between the plurality of particles of silicon oxide, andfurther comprising:a conductive layer that is provided on the composite layer, contains the conductive substance, and does not contain the particles of silicon oxide.2. The multilayer body according to claim 1 ,wherein the silicon oxide is silicon monoxide.3. The multilayer body according to claim 1 ,wherein the plurality of particles of silicon oxide is a mixture of particles of amorphous silicon oxide and particles of silicon.4. The multilayer body according to claim 1 ,wherein the silicon oxide is amorphous silicon oxide.5. (canceled)6. The multilayer body according to claim 1 ,wherein the conductive layer has a thickness of 20 μm or less.7. A method for producing a multilayer body claim 1 , comprising:a film formation step of forming a silicon oxide layer containing a plurality of particles of silicon oxide on a conductive substrate by vapor deposition or sputtering; andan application step of ...

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Номер записи: 28

15-01-2015 дата публикации

Electrochemical Device Electrode Including Cobalt Oxyhydroxide

Номер: US20150017544A1

Автор: Prasad Binay, Rasmussen Paul G., Thompson Levi T.

Принадлежит:

This invention discloses an electrochemical device having a multilayer structure and methods for making such a device. Specifically, this invention discloses a multilayer electrochemical device having nano-sized cobalt oxyhydroxide conductive agents and/or active materials within the polymer layers. 1. An electrode comprising:an active material comprising an alkali metal compound providing an alkali metal ion for an electrochemical reaction; anda conductive agent comprising cobalt oxyhydroxide.2. The electrode of wherein:{'sub': '2', 'sup': '−', 'the active material is selected from the group consisting of lithium cobalt oxide, lithium iron phosphate, lithium manganese oxide, lithium nickel manganese cobalt oxide, lithium nickel cobalt aluminum oxide, lithium titanate, lithium vanadium oxide, lithium iron fluorophosphates, sodium iron phosphate, sodium iron fluorophosphates, sodium vanadium fluorophosphates, sodium vanadium chromium fluorophosphates, sodium hexacyanometallates, potassium hexacyanometallates, and lithium-containing layered compounds having hexagonal symmetry based on α-NaFeOstructure with a space group of R3m.'}3. The electrode of wherein:the active material is lithium cobalt oxide.4. The electrode of wherein:at least some cobalt in the cobalt oxyhydroxide of the conductive agent has a +4 oxidation state.5. The electrode of wherein:at least some cobalt in the cobalt oxyhydroxide of the conductive agent has a +3 oxidation state.6. The electrode of wherein:the conductive agent comprises nanoparticles.7. The electrode of wherein:the active material and the conductive agent are supported on a substrate, andthe substrate comprises a metal selected from aluminum, copper, silver, iron, zinc, nickel, titanium, and gold.8. An electrochemical device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an electrode according to as a positive electrode;'}a negative electrode; anda non-aqueous electrolyte.9. An electrode comprising:a substrate; andone or ...

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Номер записи: 29

21-01-2016 дата публикации

Active Material

Номер: US20160020460A1

Автор: YANG Szu-Nan

Принадлежит:

An active material is disclosed in the present invention. The active material includes a lithium active material and a complex shell which completely covers the lithium active material. The complex shell includes at least one protection covering and at least one structural stress covering. The protection covering is a kind of metal which may alloy with the lithium ion. The structural stress covering dose not alloy with the lithium active material. The complex shell efficiently blocks the lithium active material out of the moisture and the oxygen so that the lithium active material is able to be stored and operated in the general surroundings. The structural stress provided via the structural stress covering may keep the configuration of the active material unbroken after the repeating reactions. 1. An active material , which is applied to a power supply element , comprising:a lithium active material; and a protection layer, comprising a first protection material and forming an alloy with lithium metal/ion; and', 'a structural layer, does not alloy with lithium metal/ion., 'a composite layer, entirely covering the lithium active material, comprising2. The active material of claim 1 , wherein the protection layer covers an outer surface of the lithium active material.3. The active material of claim 1 , wherein the protection layer is covered via the structural layer.4. The active material of claim 1 , wherein the structural layer partially covers the outer surface of the lithium active material.5. The active material of claim 1 , wherein the structural layer is made of a porous material.6. The active material of claim 1 , wherein the structural layer further comprises a plurality of through holes and/or a plurality of blind holes.7. The active material of claim 1 , wherein structural layer is made of a material selected from the group consisting of polymer claim 1 , ceramic claim 1 , fiber claim 1 , metal claim 1 , solid electrolyte claim 1 , gel electrolyte or a ...

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Номер записи: 30

21-01-2016 дата публикации

Anode Electrode

Номер: US20160020462A1

Автор: YANG Szu-Nan

Принадлежит:

A lithium metal electrode is disclosed in this invention. The lithium metal electrode includes a lithium metal layer, several gate layers and a current collector layer having several openings. The gate layers are located in the openings. The lithium metal layer is located corresponding to the gate layers and is substantially contacted with the current collector layer. The lithium metal layer is insulated via the gate layers and/or the current collector layer before formation. While the gate layers are alloyed with the lithium ions from the media such as the electrolyte, the alloyed gate layers may provide the ionic access for the lithium metal layer so that the lithium metal layer may feedback the lithium ions back to the chemical system of the electricity supply system. Also, at the same time, the potentials of all the gate layers may be kept equally to the potential of the lithium metal layer.

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Номер записи: 31

19-01-2017 дата публикации

Composite Anode Of Lithium-ion Batteries

Номер: US20170018765A1

Автор: Liu Xingbo, Yao Meng, ZHANG Hui

Принадлежит:

The present invention provides a composite anode for a battery comprising a copper current collector working electrode, at least one anode material comprising at least one of a carbon, a silicon, a conductive agent, and combinations thereof, wherein at least one anode material is deposited on a surface of the copper current collector working electrode to form the composite anode for a battery. An electrophoretic method for making this anode is provided. A lithium-ion battery having the composite anode is disclosed. 1. A composite anode for a lithium-ion battery comprising:a copper current collector working electrode;at least one anode material comprising at least one of a carbon, a silicon, a conductive agent, and combinations thereof, wherein at least one of said anode materials is deposited on a surface of said copper current collector working electrode to form a composite anode for a lithium-ion battery.2. The composite anode of wherein said anode material comprises both carbon and silicon.3. The composite anode of wherein the molar ratio of said carbon to said silicon of said anode materials ranges from about 50:1 to 1:20.4. The composite anode of wherein said conductive agent is one or more selected from the group consisting of a polyacrylonitrile (PAN) claim 1 , a polyaniline (PANI) claim 1 , an acetylene black claim 1 , a carbon black claim 1 , a super P claim 1 , a poly(ethylene oxide) claim 1 , and a lithium hydroxide.5. The composite anode of wherein said carbon is in the form selected from the group consisting of a graphite claim 1 , a graphene claim 1 , a carbon nanoparticle claim 1 , a carbon nanotube claim 1 , a carbon fiber claim 1 , and a carbon rod.6. The composite anode of wherein said silicon is in the form selected from the group consisting of an Si powder claim 1 , an Si nanowire claim 1 , an Si nanoparticle claim 1 , an Si sol particle claim 1 , and an Si rod.7. The composite anode of wherein said copper current collector working electrode is ...

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Номер записи: 32

19-01-2017 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Номер: US20170018772A1

Автор: Ogasawara Takeshi, Satow Taiki, Sunano Taizou

Принадлежит: SANYO ELECTRIC CO., LTD.

Dissolution of cobalt from a positive electrode active material is suppressed. Disclosed is a positive electrode active material for a nonaqueous electrolyte secondary battery that contains a lithium transition metal oxide. Fluorine and at least one element selected from zirconium, titanium, aluminum, magnesium, and rare earth elements adhere to the surface of the lithium transition metal oxide, and the lithium transition metal oxide contains cobalt. The lithium transition metal oxide has an average particle diameter of 10 μm or less. 18-. (canceled)9. A positive electrode active material for a nonaqueous electrolyte secondary battery , comprising a lithium transition metal oxide ,wherein a material containing at least one element selected from zirconium, titanium, aluminum, magnesium, and rare earth elements and a material containing fluorine adhere to the surface of the lithium transition metal oxide,wherein the material containing at least one element selected from zirconium, titanium, aluminum, magnesium, and rare earth elements includes at least one compound selected from a hydroxide, an oxyhydroxide and a carbonate compound, and the material containing fluorine includes at least one compound selected from lithium fluoride, sodium fluoride, and potassium fluoride,the lithium transition metal oxide contains cobalt, andthe lithium transition metal oxide has an average particle diameter of 10 μm or less.10. The positive electrode active material for a nonaqueous electrolyte secondary battery according to claim 9 , wherein the lithium transition metal oxide comprises LiCoO.11. The positive electrode active material for a nonaqueous electrolyte secondary battery according to claim 9 , wherein the molar ratio of the total amount of zirconium claim 9 , titanium claim 9 , aluminum claim 9 , magnesium claim 9 , and rare earth elements adhering to the surface of the lithium transition metal oxide to the total amount of fluorine adhering to the surface of the lithium ...

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Номер записи: 33

19-01-2017 дата публикации

SOLID IONICALLY CONDUCTING POLYMER MATERIAL

Номер: US20170018781A1

Автор: Zimmerman Michael A.

Принадлежит:

A solid, ionically conductive, non-electrically conducting polymer material with a plurality of monomers and a plurality of charge transfer complexes, wherein each charge transfer complex is positioned on a monomer. 1. A solid , semicrystalline , ionically conductive , polymer material having:a plurality of monomers;a plurality of charge transfer complexes, wherein each charge transfer complex is positioned on a monomer;{'sup': '−5', 'wherein the electrical conductivity of the material is less than 1.0×10S/cm at room temperature.'}2. The material of claim 1 , wherein the crystallinity of the material is greater than 30%.3. The material of claim 1 , wherein the material further comprises a glassy state which exists at temperatures below the melting temperature of the material.4. The material of claim 3 , wherein the material further comprises both a cationic and anionic diffusing ion claim 3 , whereby each diffusing ion is mobile in the glassy state claim 3 , and wherein the crystallinity of the material is greater than 30%.5. The material of claim 1 , wherein the charge transfer complex is formed by the reaction of a polymer and an electron acceptor.6. The material of claim 5 , wherein the material has a glassy state claim 5 , and at least one cationic and at least one anionic diffusing ion claim 5 , wherein each diffusing ion is mobile in the glassy state.7. The material of claim 6 , having at least three diffusing ions.8. The material of claim 6 , having more than one anionic diffusing ion.9. The material of claim 1 , wherein the melting temperature of the material is greater than 250° C.10. The material of claim 1 , wherein the ionic conductivity of the material is greater than 1.0×10S/cm at room temperature.11. The material of claim 6 , wherein the material comprises a single cationic diffusing ion claim 6 , wherein the diffusivity of the cationic diffusing ion is greater than 1.0×10m/s at room temperature.12. The material of claim 6 , wherein the material ...

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Номер записи: 34

03-02-2022 дата публикации

Negative electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery

Номер: US20220037640A1

Автор: Hirokazu Wada, Katsunori Yanagida, Kouhei Tsuzuki, Yuki Morikawa

Принадлежит: Panasonic Intellectual Property Management Co Ltd

A negative electrode for a nonaqueous electrolyte secondary battery, said negative electrode comprising a negative-electrode current collector, and a negative-electrode active material layer provided upon the negative-electrode current collector, wherein the negative-electrode active material layer includes a negative-electrode active material and carboxymethyl cellulose, wherein the molecular weight of the carboxymethyl cellulose in an area that extends 10% in the thickness direction from the surface of the negative-electrode current collector side of the negative-electrode active material layer is smaller than that of the carboxymethyl cellulose in an area that extends 10% in the thickness direction from the surface of the reverse side of the negative-electrode active material layer from the negative-electrode current collector.

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Номер записи: 35

17-04-2014 дата публикации

AIR CATHODE FOR AIR BATTERIES AND AIR BATTERY

Номер: US20140106240A1

Автор: Kotani Yukinari, Nakanishi Shinji, Nishio Koji, OKUGAKI Tomohiko

Принадлежит:

The present invention is to provide an air cathode for air batteries, having excellent high-rate discharge performance, and an air battery comprising the air cathode. 1. An air cathode for air batteries , using oxygen as an active material and configured to form an air battery comprising the air cathode , an anode and an electrolyte layer present between the air cathode and the anode ,the air cathode comprising:a catalyst layer which contains at least an electrode catalyst and an electroconductive material;an oxide as the electrode catalyst, which is active against at least oxygen reduction reaction; andat least one kind of metal carbide as the electroconductive material, selected from the group consisting of a tungsten carbide, a titanium carbide and a molybdenum carbide.2. The air cathode for air batteries according to claim 1 , wherein the metal carbide is a tungsten carbide and the ratio of the tungsten carbide to the amount of the catalyst layer is 28 to 71% by weight.3. The air cathode for air batteries according to claim 1 , wherein the ratio of the tungsten carbide to the total amount of the oxide and the tungsten carbide is 28 to 71% by weight.4. The air cathode for air batteries according to claim 1 , wherein the metal carbide is a titanium carbide and the ratio of the titanium carbide to the amount of the catalyst layer is 5 to 71% by weight.5. The air cathode for air batteries according to claim 4 , wherein the ratio of the titanium carbide to the total amount of the oxide and the titanium carbide is 5 to 71% by weight.6. The air cathode for air batteries according to claim 1 , wherein the metal carbide is a molybdenum carbide and the ratio of the molybdenum carbide to the amount of the catalyst layer is 5 to 71% by weight.7. The air cathode for air batteries according to claim 6 , wherein the ratio of the molybdenum carbide to the total amount of the oxide and the molybdenum carbide is 5 to 71% by weight.8. The air cathode for air batteries according to ...

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Номер записи: 36

17-04-2014 дата публикации

ELECTROCHEMICAL CELL WITH A ZINC-INDIUM ELECTRODE

Номер: US20140106241A1

Автор: Csrenko Cornelia, Kohls Ulrich, Kreidler Bernd, Löffelmann Hermann, Rupp Andreas

Принадлежит: VARTA MICROBATTERY GMBH

An electrochemical cell has an electrode which includes a zinc-indium alloy as electrochemically active material, wherein the alloy is present in the form of particles and the entirety of the particles is composed of at least two particle fractions differing in indium concentration. 1. An electrochemical cell comprising an electrode which includes a zinc-indium alloy as electrochemically active material , wherein the alloy is present in the form of particles and the entirety of the particles is composed of at least two particle fractions differing in indium concentration.2. The cell according to claim 1 , wherein the total proportion of indium in the cell is claim 1 , in relation to the total amount of zinc in the cell claim 1 , 50 ppm to 5000 ppm.3. The cell according to claim 1 , wherein the entirety of the particles comprises a first particle fraction composed of particles including an indium concentration of up to 2500 ppm claim 1 , and a second particle fraction composed of particles including an indium concentration of up to 10000 ppm claim 1 , wherein the indium concentration in the second particle fraction is higher than in the first fraction.4. The cell according to claim 1 , wherein the indium concentration in the at least two particle fractions differ by at least the factor of 1.1.5. The cell according to claim 3 , where1% to 99% of the particles belong to the first particle fraction,1% to 99% of the particles belong to the second particle fraction,the percentages add up to 100%, if the entirety of particles is composed of two particle fractions.6. The cell according to claim 1 , wherein the particles of the at least two particle fractions do not differ substantially in size.7. The cell according to claim 1 , wherein the electrode further comprises at least one selected from the group consisting of an electrolyte claim 1 , in particular an alkaline electrolyte claim 1 , an electrode binder and a conductivity enhancing means.8. The cell according to claim ...

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Номер записи: 37

23-01-2020 дата публикации

ELECTROACTIVE POLYMER COATING FOR IMPROVED BATTERY SAFETY

Номер: US20200028148A1

Автор: Lang Christopher M.

Принадлежит:

A single or multi-component polymer coating is applied to components used in fabrication of electrochemical cells to protect the cells from damages that can result in cell imbalance or cell performance reduction. The polymer coating is electrically conductive under normal operating conditions but, when operated at low voltages, functions as an insulative material that increases the electrical resistance of the cell components. This increased electrical resistance improves cell safety by minimizing short-circuit current flow and reducing heating rate in the cell components. 1. A method of protecting an electrochemical cell from damage , the method comprising: adding to electrochemically active particles of the cathode electrode an additive which is insulating below a predetermined switching voltage and conductive above the predetermined switching voltage,', 'mixing the additive and electrochemically active particles in a slurry with a binder, and', 'solidifying the slurry on a current collector to form a cathode;, 'producing a cathode electrode byincluding the cathode in a cell;operating the cell below the switching predetermined voltage and transitioning the cathode electrochemically active particles additive to an insulating state to limit current through the cathode electrode preventing cell damage; andoperating the cell above the predetermined switching voltage transitioning the cathode electrochemically active particles additive to a conductive state for electrical conductivity in the cathode.2. The method of further including adding a conductive additive to the slurry.3. The method of in which the additive is an electroactive polymer.4. The method of in which the electroactive polymer is coated about the electrochemically active particles of the cathode electrode.5. The method of in which the electroactive polymer is coated about a conductive additive.6. The method of in which the electroactive polymer is coated about a non-conductive metal oxide particle.7. ...

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Номер записи: 38

23-01-2020 дата публикации

BIS(PYRIDINIUM)-NAPHTHALENE DIIMIDE REDOX IONIC COMPOUNDS AS ELECTRODE ACTIVE MATERIALS

Номер: US20200028172A1

Автор: DESCHAMPS Marc, GAUBICHER Joel, GUYOMARD Dominique, LECUYER Margaud, ODOBEL Fabrice, PERTICARARI Sofia, Poizot Philippe

Принадлежит:

The invention relates to the use of a bis(pyridinium)-naphthalene diimide redox ionic compound as electrode active material, notably for an aqueous electrolyte battery, to a negative electrode comprising at least said bis(pyridinium)-naphthalene diimide redox ionic compound, to a battery, notably an aqueous electrolyte battery comprising said negative electrode, and to particular bis(pyridinium)-naphthalene diimide redox ionic compounds. 1. A redox ionic compound , said redox compound configured to be operable as a negative electrode active material , said redox compound comprising:at least one naphthalene diimide unit; andat least one N,N′-disubstituted bis(pyridinium) unit.2. The redox ionic compound according to claim 1 , wherein the N claim 1 ,N′-disubstituted bis(pyridinium) and naphthalene diimide units are coupled within the redox ionic compound by means of a linker denoted by L.3. The redox ionic compound according to claim 2 , wherein the linker L is a saturated or unsaturated carbon chain claim 2 , an aromatic carbon chain claim 2 , or a mixture of a saturated or unsaturated carbon chain and an aromatic carbon chain claim 2 , the aforementioned carbon chains being optionally fluorinated claim 2 , and possibly containing one or more heteroatoms claim 2 , for example one or more oxygen or sulfur atoms claim 2 , said carbon chains having from 2 to 20 carbon atoms.4. The redox ionic compound according to claim 1 , wherein the redox ionic compound comprises one or more anions A′ chosen from inorganic anions and organic anions claim 1 , a representing the valence of the anion claim 1 , with 1≤a≤3.9. The redox ionic compound according to claim 1 , wherein the redox ionic compound has a theoretical bulk capacity of at least 80 mAh/g.10. A negative electrode comprising:a composite material including a negative electrode active material,optionally a binder, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'optionally an agent that imparts electron conductivity, ...

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Номер записи: 39

23-01-2020 дата публикации

MULTIVALENT METAL ION BATTERY HAVING A CATHODE LAYER OF PROTECTED GRAPHITIC CARBON AND MANUFACTURING METHOD

Номер: US20200028204A1

Автор: Jang Bor Z., Zhamu Aruna

Принадлежит:

Provided is a method of producing a multivalent metal-ion battery comprising an anode, a cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of a multivalent metal, selected from Ni, Zn, Be, Mg, Ca, Ba, La, Ti, Ta, Zr, Nb, Mn, V, Co, Fe, Cd, Cr, Ga, In, or a combination thereof, at the anode, wherein the anode contains the multivalent metal or its alloy as an anode active material and the cathode comprises a cathode active layer of graphitic carbon particles or fibers that are coated with a protective material. Such a metal-ion battery delivers a high energy density, high power density, and long cycle life. 1. A method of manufacturing a multivalent metal-ion battery , comprising:(a) providing an anode containing a multivalent metal or its alloy, wherein said multivalent metal is selected from Ni, Zn, Be, Mg, Ca, Ba, La, Ti, Ta, Zr, Mn, V, Co, Fe, Cd, Cr, Ga, In, or a combination thereof;(b) providing a cathode active layer of graphitic carbon particles or fibers as a cathode active material that intercalates/de-intercalates ions; and(c) providing an electrolyte capable of supporting reversible deposition and dissolution of said multivalent metal at the anode and reversible adsorption/desorption and/or intercalation/de-intercalation of ions at the cathode;wherein said graphitic carbon particles or fibers are coated with a protective layer selected from carbonized resin, an ion-conducting polymer, an electrically conductive polymer, or a combination thereof; wherein said ion-conducting polymer is selected from the group consisting of sulfonated polymers, polypropylene oxide (PPO), poly bis-methoxy ethoxyethoxide-phosphazene, polydimethylsiloxane, poly(vinylidene fluoride)-hexafluoropropylene (PVDF-HFP), and combinations thereof; wherein said electrically conducting polymer is selected from the group consisting of polyfuran, bi-cyclic polymers, derivatives thereof, and combinations thereof; ...

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Номер записи: 40

05-02-2015 дата публикации

ELECTRONICALLY CONDUCTIVE POLYMER BINDER FOR LITHIUM-ION BATTERY ELECTRODE

Номер: US20150034881A1

Автор: Battaglia Vincent S., Liu Gao, Xun Shidi, Zheng Honghe

Принадлежит: The Regents of the University of California

A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current. 4. The polymeric composition of wherein: x=0 claim 1 , each of x′ and y>0 claim 1 , and z<1 claim 1 , x′+y+z=1 claim 1 , Rand R claim 1 , =(CH)nCOOH where n=0-8 claim 1 , and Rand Ris any combination of H claim 1 , COOH and COOCH.8. The polymer composite of claim 5 , wherein: x=0 claim 5 , each of x′ and y>0 claim 5 , and z<1 claim 5 , x′+y+z=1 claim 5 , Rand R claim 5 , =(CH)nCOOH where n=0-8 claim 5 , and Rand Ris any combination of H claim 5 , COOH and COOCH.10. The method of claim 9 , wherein the substrate is selected from the group comprising copper and aluminum.13. The method of claim 9 , wherein: x=0 claim 9 , each of x′ and y>0 claim 9 , and z<1 claim 9 , x′+y+z=1 claim 9 , Rand R claim 9 , =(CH)nCOOH where n=0-8 claim 9 , and Rand Ris any combination of H claim 9 , COOH and COOCH.17. The battery of claim 14 , wherein: x=0 claim 14 , each of x′ and y>0 claim 14 , and z<1 claim 14 , x′+y+z=1 claim 14 , Rand R claim 14 , =(CH)nCOOH where n=0-8 claim 14 , and Rand Ris any combination of H claim 14 , COOH and COOCH. This application is a continuation of U.S. application Ser. No. 13/294,885, filed Nov. 11, 2011 and entitled Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode, which is a continuation of PCT Application No. PCT/US2010/035120, filed May 17, 2010 and entitled Electronically ...

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Номер записи: 41

02-02-2017 дата публикации

ELECTRODE FOR LITHIUM-ION CELL, LITHIUM-ION CELL, AND METHOD FOR MANUFACTURING ELECTRODE FOR LITHIUM-ION CELL

Номер: US20170033350A1

Автор: AKAMA Hiroshi, Horie Hideaki, KAWAKITA Kenichi, Kusachi Yuki, MIZUNO Yusuke, Ohsawa Yasuhiko, SATOU Hajime, SHINDO Yasuhiro, Tsudo Yasuhiro

Принадлежит:

The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 μm. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path. 1. An electrode for lithium ion batteries , the electrode comprising:a first main surface to be located adjacent to a separator of a lithium ion battery; anda second main surface to be located adjacent to a current collector of the lithium ion battery,whereinthe electrode has a thickness of 150 to 5000 μm,the electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B),the electrode is free of a binder,the conductive member (A) comprises conductive fibers dispersed between the first main surface and the second main surface,the conductive fibers have an electrical conductivity of 50 ms/cm or more,at least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface, andthe conductive path is in contact with the active material particles (B) around the conductive path.2. (canceled)3. The electrode for lithium ion batteries according to claim 1 ,wherein the ...

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Номер записи: 42

02-02-2017 дата публикации

LONG CYCLE-LIFE LITHIUM SULFUR SOLID STATE ELECTROCHEMICAL CELL

Номер: US20170033400A1

Автор: Eitouni Hany Basam, Fanous Jean, Mullin Scott Allen, Pratt Russell Clayton, Sivanandan Kulandaivelu, Wang Xiao-Liang

Принадлежит:

In a solid-state lithium-metal/sulfur-based battery cell, barriers to sulfur and polysulfide diffusion are included in or used as an ionically conductive electrolyte in the cathode or separator layers. During operation of the battery, the barrier materials are positioned to either 1) rapidly react with any free sulfur or lithium polysulfide species that are generated, forming stable carbon-sulfur bond(s) and preventing further migration of the sulfur or polysulfide species or 2) prevent the formation and diffusion of elemental sulfur or free lithium polysulfide species. Regardless of the identity of the sulfur/polysulfide species, the sulfur-containing species is prevented from diffusing to the anode and causing capacity fade and higher internal resistance to ion flow. 1. An electrochemical cell comprising a sulfur-bound cyclized polyacrylonitrile cathode active material;', 'an electronically conducting agent; and', 'a first polymer electrolyte that contains a first lithium salt;, 'a cathode comprisingwherein the sulfur-bound cyclized polyacrylonitrile, the electronically conducting agent, and the first polymer electrolyte are all mixed together to form the cathode;an anode comprising lithium; anda separator comprising a second polymer electrolyte and a second lithium salt, the separator positioned between the cathode and the anode, the separator providing ionic conduction between the cathode and the anode.2. The electrochemical cell of further comprising a layer of a third polymer electrolyte on a first surface of the cathode claim 1 , the first surface of the cathode facing the separator.3. The electrochemical cell of wherein the third polymer electrolyte comprises a polymer electrolyte selected from the group consisting of the first polymer electrolyte and the second polymer electrolyte.4. The electrochemical cell of wherein the first polymer electrolyte is a liquid claim 1 , and the cathode further comprises a binder.5. The electrochemical cell of claim 1 , ...

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Номер записи: 43

05-02-2015 дата публикации

SOLID ELECTROLYTE BATTERY

Номер: US20150037655A1

Автор: Wang Yaobing, Zhong Linglong, Zhou Mingjie

Принадлежит:

A solid electrolyte battery comprises a positive plate (), a negative plate (), several composite electrode plates () and several solid electrolyte (), wherein the number of the solid electrolyte () is one more than the number of the composite electrode plates (). The positive plate () and the negative plate () are spaced oppositely, the composite electrode plates () are between the positive plate () and the negative plate (), and both sides of the composite electrode plates () are laminated with the positive plate () and the negative plate () by the solid electrolyte (), respectively, the structure of the solid electrolyte battery is formed. There is the solid electrolyte battery according to the invention, because the all surfaces of the positive plate (), the composite electrode plates (), the negative plate () are coated by the positive active material and/or negative material which may form the positive and negative capacitor structures, the positive active material and the negative active material can form good layered laminate structure with the solid electrolyte (), thus internal resistance of battery is greatly reduced, so as to benefit migration of ions, therefore capacity of battery is improved. 1. A solid electrolyte battery , wherein comprising a positive plate , a negative plate , several composite electrode plates and several solid electrolyte , and the number of the solid electrolyte is one more than the number of the composite electrode plates; the positive plate and the negative plate are spaced oppositely , the composite electrode plates are between the positive plate and the negative plate , and both sides of the composite electrode plates are laminated with the positive plate and the negative plate by the solid electrolyte , respectively , and the structure of the solid electrolyte battery is formed; in which ,said positive plate comprises a positive electrode current collector and a positive active material coated on the surface of the positive ...

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Номер записи: 44

17-02-2022 дата публикации

Prelithiated negative electrode, preparation method thereof, and lithium ion battery and supercapacitor comprising the same

Номер: US20220052342A1

Автор: Chenghao LIU, Hanbo MU, Qiang Chen, Zhaoyong Sun

Принадлежит: China Energy Cas Technology Co Ltd

The present disclosure provides a prelithiated negative electrode, a preparation method thereof, and a lithium ion battery and a supercapacitor comprising the same. The prelithiated negative electrode comprises: an electrode film which is a solvent-free film-like negative electrode material composed of a negative electrode active material, a lithium-skeleton carbon composite material, a binder and optionally a conductive additive; and a metal current collector, wherein the electrode film is bonded on the metal current collector through a conductive adhesive. The present disclosure provides an effective method of prelithiating a negative electrode, and can effectively improve the first cycle efficiency of a lithium battery comprising a silicon-carbon negative electrode, contributing to increasing the specific capacity and cycle life of the battery. The present disclosure can also increase the energy density of a supercapacitor.

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Номер записи: 45

31-01-2019 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR MULTIVALENT-ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR MULTIVALENT-ION SECONDARY BATTERY, MULTIVALENT-ION SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, POWER STORAGE SYSTEM, POWER TOOL, AND ELECTRONIC DEVICE

Номер: US20190036114A1

Автор: Kawasaki Hideki, Matsumoto Ryuhei, Mori Daisuke, Nakayama Yuri

Принадлежит:

A positive electrode active material for multivalent-ion secondary battery is provided. The positive electrode active material includes sulfur, and the sulfur is coated with a polyethylene dioxythiophene-based conductive polymer doped with a sulfonic acid-based compound. 1. A positive electrode active material for multivalent-ion secondary battery comprising sulfur ,wherein the sulfur is coated with a polyethylene dioxythiophene-based conductive polymer doped with a sulfonic acid-based compound.2. A positive electrode for multivalent-ion secondary battery comprising at least a positive electrode active material ,wherein the positive electrode active material includes sulfur, andwherein the sulfur is coated with a polyethylene dioxythiophene-based conductive polymer doped with a sulfonic acid-based compound.3. A multivalent-ion secondary battery comprising: the positive electrode for multivalent-ion secondary battery according to ; a negative electrode; and an electrolytic solution claim 2 ,wherein the electrolytic solution includes a solvent including sulfone and a metal salt dissolved in the solvent.4. The multivalent-ion secondary battery according to claim 3 , wherein the metal salt includes a magnesium salt.5. A battery pack comprising: the multivalent-ion secondary battery according to ; a controller configured to control a usage state of the multivalent-ion secondary battery; and a switch configured to switch the usage state of the multivalent-ion secondary battery in response to an instruction from the controller.6. An electric vehicle comprising: the multivalent-ion secondary battery according to ; a converter configured to convert electric power supplied from the multivalent-ion secondary battery to driving force; a driver configured to drive in response to the driving force; and a controller configured to control a usage state of the multivalent-ion secondary battery.7. A power storage system comprising: the multivalent-ion secondary battery according to ; ...

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Номер записи: 46

30-01-2020 дата публикации

SOLID-STATE BATTERIES, SEPARATORS, ELECTRODES, AND METHODS OF FABRICATION

Номер: US20200036000A1

Автор: ALLIE Lazbourne Alanzo, GRANT Adrian M., JOHNSON David Ketema, JOHNSON Lonnie G., LYMAN Devon

Принадлежит:

Solid-state batteries, battery components, and related processes for their production are provided. The battery electrodes or separators contain sintered electrochemically active material, inorganic solid particulate electrolyte having large particle size, and low melting point solid inorganic electrolyte which acts as a binder and/or a sintering aid in the electrode. 1. A solid state battery comprising a cathode , a separator and an anode , wherein at least one of the cathode and the anode has a surface adjacent to the separator and comprises a sintered electrochemically active material and a first inorganic solid particulate electrolyte having high ionic conductivity , wherein the first inorganic solid particulate electrolyte has a particle diameter of about 100 nm to about 1 mm , and wherein the first inorganic solid particulate electrolyte contained in the cathode and/or the anode is embedded in the surface thereof and extends a substantial distance into the cathode and/or the anode , is in physical contact with the separator , and provides electrolyte high ionic conductivity continuity from the separator into the cathode and/or the anode.2. The solid state battery according to claim 1 , wherein at least one of the cathode and the anode further comprises a first low melting point solid inorganic electrolyte claim 1 , wherein the first low melting point electrolyte extends through pores within the cathode and/or the anode.3. The solid state battery according to claim 2 , wherein the first low melting point solid inorganic electrolyte comprises a doped metal oxide containing at least one of boron and carbon.4. The solid state battery according to claim 3 , wherein the doped metal oxide is a doped lithium oxide.5. The solid state battery according to claim 3 , wherein the doped metal oxide is doped with about 0.1 to about 20 atomic percent of a dopant element or compound.6. The solid state battery according to claim 3 , wherein the doped metal oxide is a lithium ...

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Номер записи: 47

30-01-2020 дата публикации

INORGANIC CONDUCTIVE LAYERS FOR ELECTROCHEMICAL CELLS

Номер: US20200036001A1

Автор: Han Song, Liu Xiaohua, Meng Xinghua, Zhou Sa

Принадлежит: GRU Energy Lab Inc.

Provided are electrodes for use in electrochemical cells and active material components used to form these electrodes. Also provided are methods of forming these active material components as well as methods of forming these electrodes. An electrode comprises a current collector and an active layer, comprising active material structures and an inorganic conductive layer. The inorganic conductive layer coats and binds together these active material structures. Furthermore, the inorganic conductive layer also provides adhesion of the active layer to the current collector. The inorganic conductive layer has an electronic conductivity of at least 10S/m and provides an electronic path among the active material structures and, in some examples, between the active material structures and the current collector. In some embodiments, the same inorganic conductive layer shared by multiple active material structures. 1. An electrode for use in an electrochemical cell , the electrode comprising:a current collector: active material structures;', {'sup': '4', 'the inorganic conductive layer has an electronic conductivity of greater than 10S/m and provides an electronic path among the active material structures.'}, 'an inorganic conductive layer, coating and binding together the active material structures, wherein], 'an active layer, directly interfacing and disposed on the current collector, the active layer comprising2. The electrode of claim 1 , wherein the inorganic conductive layer comprises one of a silicide selected from the group consisting of nickel silicide claim 1 , titanium silicide claim 1 , copper silicide claim 1 , iron silicide claim 1 , molybdenum silicide claim 1 , zirconium silicide claim 1 , manganese silicide claim 1 , magnesium silicide claim 1 , tin silicide claim 1 , platinum silicide claim 1 , and calcium silicide.3. The electrode of claim 1 , wherein the inorganic conductive layer comprises a semi-liquid metal.4. The electrode of claim 1 , wherein the ...

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Номер записи: 48

04-02-2021 дата публикации

Method for Designing Electrode for Lithium Secondary Battery and Method for Manufacturing Electrode for Lithium Secondary Battery Comprising the Same

Номер: US20210036307A1

Автор: Kim Jeong Gil, OH Song Taek, Park Ji Hye

Принадлежит: LG CHEM, LTD.

Provided are a method for designing an electrode for a lithium secondary battery comprising measuring the electrical conductivity of an electrode with an alternating current to determine whether an electrical path in the electrode has been appropriately formed, and a method for manufacturing an electrode for a lithium secondary battery comprising the same. According to the present invention, it is possible to determine the content of a conductive agent in the electrode using the same. 1. A method for designing an electrode for a lithium secondary battery , the method comprising:(1) manufacturing a plurality of electrodes each containing an active material, a binder, and a conductive agent, and having a different content of only the conductive agent from each other;(2) using a broadband dielectric spectrometer (BDS) to apply an alternating current to each of the plurality of electrodes manufactured above while changing a frequency to measure conductivity of each of the electrodes;(3) identifying a specific frequency (Fc) at a point at which the conductivity of each of the electrodes changes from a DC conductivity to an AC conductivity; and(4) comparing the specific frequency (Fc) and a preset reference frequency (Fr) to determine a content of the conductive agent contained in an electrode corresponding to a case in which a deviation between the reference frequency (Fr) and the specific frequency (Fc) is within a reference deviation, as an appropriate value.2. The method of claim 1 , wherein the electrode in the step (1) comprises an additional conductive material other than the conductive agent claim 1 , and the plurality of electrodes have a different content of the conductive agent and the conductive material.3. The method of claim 1 , wherein the measuring of the conductivity of the electrodes in the step (2) comprises observing a change in conductivity of the electrodes according to a change of the alternating current.4. The method of claim 1 , wherein the preset ...

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Номер записи: 49

04-02-2021 дата публикации

Micro-sized secondary particles with enhanced ionic conductivity for solid-state electrode

Номер: US20210036310A1

Автор: Meiyuan Wu, Mengyan Hou, Qili Su, Xiaochao Que, Zhe Li

Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An electrode including micro-sized secondary particle (MSSP) with enhanced ionic conductivity for solid-state battery is provided. The MSSP comprises a cathode particle and a solid-state electrolyte. The cathode particle is at least partially coated by solid-state electrolyte. The lithium ion transport inside the micro-sized secondary particles is increased by the incorporation of solid-state electrolyte. The electrode can be prepared by casting the slurry comprising MSSP, another electrolyte, binders, and conductive additives on the current collector. The current collector is comprised of a conductive material. The current collector has a first side and a second side. The electrode active material layer is disposed on one of the first and second sides of the current collector.

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Номер записи: 50

11-02-2016 дата публикации

ALL-SOLID SECONDARY BATTERY, METHOD OF CONTROLLING ALL-SOLID SECONDARY BATTERY AND METHOD OF EVALUATING ALL-SOLID SECONDARY BATTERY

Номер: US20160043392A1

Автор: AIHARA Yuichi, Fujiki Satoshi, Suzuki Naoki, Yamada Takanobu

Принадлежит:

A lithium ion secondary battery including a cathode layer, an anode layer including an anode active material and a coating including a metal element, wherein the coating is disposed on the anode active material; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the coating has an electrochemical reaction potential with lithium that is greater than an electrochemical reaction potential of the anode active material with lithium. 1. A lithium ion secondary battery comprising:a cathode layer;an anode layer comprising an anode active material and a coating comprising a metal element, wherein the coating is disposed on the anode active material; anda solid electrolyte layer disposed between the cathode layer and the anode layer,wherein the coating has an electrochemical reaction potential with lithium that is greater than an electrochemical reaction potential of the anode active material with lithium.2. The lithium ion secondary battery of claim 1 , wherein the anode active material is a carbonaceous material.3. The lithium ion secondary battery of claim 1 ,wherein the anode active material is graphite, andwherein the electrochemical reaction between the anode active material and the lithium comprises an intercalation reaction of lithium ions into the graphite.4. The lithium ion secondary battery of claim 1 , wherein the coating comprises a metal of the metal element claim 1 , a compound comprising the metal element claim 1 , an alloy comprising the metal element and a different metal claim 1 , or a compound of the metal element and lithium.5. The lithium ion secondary battery of claim 1 , wherein the metal element is at least one selected from aluminum claim 1 , silicon claim 1 , titanium claim 1 , zirconium claim 1 , niobium claim 1 , germanium claim 1 , gallium claim 1 , silver claim 1 , indium claim 1 , tin claim 1 , antimony claim 1 , and bismuth.6. The lithium ion secondary battery of claim 1 , wherein the metal element is ...

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Номер записи: 51

09-02-2017 дата публикации

LITHIUM METAL FREE SILICON / SULFUR ACCUMULATOR

Номер: US20170040604A1

Автор: Bakenov Zhumabay, HARA Toru, Konarov Aishuak, Kurmanbayeva Indira, Mentbayeva Almagul

Принадлежит: INSTITUTE OF BATTERIES, LLC

A rechargeable battery includes a stack made up of an anode, a separator wetted in an organic electrolyte, and a cathode. The stack is free of metal lithium. In these conditions, the anode is pre-lithiated and comprises silicon, and the cathode includes sulfur. A method of assembling this rechargeable battery is also provided. 1. A rechargeable battery comprising a stack consisting of an anode , a separator wetted in an organic electrolyte , and a cathode , wherein the stack is free of metal lithium , wherein the anode is pre-lithiated and comprises silicon , and wherein the cathode comprises sulfur ,2. The rechargeable battery according to claim 1 , wherein the anode consists of a pre-lithiated heat-treated first composite claim 1 , wherein this first composite comprises a conductive porous substrate cast by a first slurry claim 1 , and wherein the first slurry is a first mixture comprising a silicon powder claim 1 , a conductive polymer and dimethylformamide.3. The rechargeable battery according to claim 2 , wherein the cathode consists of a heat-treated second composite claim 2 , wherein this second composite comprises the conductive porous substrate cast by a second slurry claim 2 , and wherein the second slurry is a second mixture comprising a sulfur-based third composite claim 2 , a carbon-based conductive agent and a binder.4. The rechargeable battery according to claim 3 , wherein the conductive polymer is selected from a following group of polymers: (a) polyacrylonitrile; (b) polypyrrole.5. The rechargeable battery according to claim 4 , wherein the sulfur-based third composite consists of a heat-treated third mixture selected from a following group of mixtures:(a) a mixture of a sulfur powder with the conductive polymer,(b) a mixture of a sulfur powder with a carbon material selected from a following group of materials: (i) granulated electroconductive carbon black, (j) acetylene black.6. The rechargeable battery according to claim 5 , wherein the ...

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Номер записи: 52

09-02-2017 дата публикации

COMPOSITE PARTICLES FOR ELECTROCHEMICAL DEVICE ELECTRODE AND METHOD FOR MANUFACTURING COMPOSITE PARTICLES FOR ELECTROCHEMICAL DEVICE ELECTRODE

Номер: US20170040613A1

Автор: MASUDA Azusa

Принадлежит: ZEON CORPORATION

The present invention provides composite particles for an electrochemical device electrode which makes it possible to manufacture an electrochemical device exhibiting excellent high temperature storage characteristics. The composite particles for an electrochemical device electrode of the present invention contain an electrode active material (A), a particulate binder resin (B), a water-soluble polymer (C), and a composite (D) of a water-soluble polymer (d′) and crystalline cellulose (d″). 1. Composite particles for an electrochemical device electrode comprising:an electrode active material (A);a particulate binder resin (B);a water-soluble polymer (C); anda composite (D) of a water-soluble polymer (d′) and crystalline cellulose (d″).2. The composite particles for an electrochemical device electrode according to claim 1 , wherein0.1 to 10 parts by weight of the water-soluble polymer (C) are contained with respect to 100 parts by weight of the electrode active material (A),0.1 to 2.0 parts by weight of the composite (D) are contained with respect to 100 parts by weight of the electrode active material (A), anda weight ratio (C)/(D) of the water-soluble polymer (C) to the composite (D) is 0.2 to 15.3. The composite particles for an electrochemical device electrode according to claim 1 , wherein the composite (D) has a property of being dispersed in water.4. The composite particles for an electrochemical device electrode according to claim 1 , wherein the particulate binder resin (B) contains at least either of a conjugated diene-based polymer or an acrylate-based polymer.5. The composite particles for an electrochemical device electrode according to claim 1 , wherein a primary average particle size of the composite (D) is 10 μm or less.6. The composite particles for an electrochemical device electrode according to claim 1 , wherein the composite (D) is crystalline cellulose (d″) being surface-treated with a water-soluble polymer (d′).7. The composite particles for an ...

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Номер записи: 53

16-02-2017 дата публикации

POLYMERS, SUBSTRATES, METHODS FOR MAKING SUCH, AND DEVICES COMPRISING THE SAME

Номер: US20170044295A1

Автор: Duck Nicholas Brendan

Принадлежит:

The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same. 116.-. (canceled)17. A polymer prepared by reacting an organic substrate selected from the group consisting of benzene-1 ,3-dicarboxaldehyde , benzene-1 ,4-dicarboxaldehyde , 4 ,4-biphenyl dicarboxaldehyde , 2 ,3-naphthalene dicarboxaldehyde , 3 ,4-dimethyl-2 ,5-pyrrole dicarboxaldehyde , benzene-1 ,3 ,5-tricarboxaldehyde , 1 ,4-diacetyl benzene , and 1 ,3 ,5-triacetyl benzene with hydrazine or triaminobenzene to form said polymer.18. The polymer of claim 17 , wherein said polymer is further prepared by oxidizing said polymer with ammonium persulfate or iron (III) chloride.19. The polymer of claim 17 , wherein said polymer is further prepared by reacting said polymer with hydrazine and a substrate selected from the group consisting of indole-5-carboxaldehyde claim 17 , pyrrole-2carboxaldehyde claim 17 , and 5-carboxyindole.20. The polymer of claim 17 , wherein said polymer comprises a portion having the structure —C═N—N═C—.21. The polymer of claim 17 , wherein said organic substrate is 3 claim 17 ,4-dimethyl-2 claim 17 ,5-pyrrole dicarboxaldehyde and said organic substrate is reacted with hydrazine.22. An electrochemical device comprising: a working electrode; a counter electrode; and said polymer of claim 17 , wherein said working electrode is in operative communication with said counter electrode claim 17 , and said polymer is in operative communication with said working electrode or said counter electrode.23. The electrochemical device of claim 22 , wherein said polymer is disposed on a least a portion of the working electrode.2422. The electrochemical device of claim 22 , wherein the electrochemical device is a battery claim 22 , a fuel cell claim 22 , a capacitor or a device formed of a combination thereof claim 22 , a supercapacitor claim 22 , an ultracapacitor claim ...

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Номер записи: 54

07-02-2019 дата публикации

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY

Номер: US20190044118A1

Автор: AKAMATSU Tetsuya, Nishikawa Satoshi, SAKURAI Hiroshi

Принадлежит: TEIJIN LIMITED

A separator for a non-aqueous secondary battery that is composed of a composite membrane containing a porous substrate, and a heat-resistant adhesive porous layer provided on one side or both sides of the porous substrate, in which the heat-resistant adhesive porous layer contains an acrylic type resin, and a heat-resistant resin that has a glass transition temperature of 200° C. or more and that has an amide-structure. 1. A separator for a non-aqueous secondary battery that is composed of a composite membrane , the composite membrane comprising:a porous substrate, anda heat-resistant adhesive porous layer provided on one side or both sides of the porous substrate, whereinthe heat-resistant adhesive porous layer contains an acrylic type resin, and a heat-resistant resin that has a glass transition temperature of 200° C. or more and that has an amide-structure.2. The separator for a non-aqueous secondary battery according to claim 1 , wherein the heat-resistant adhesive porous layer has a structure in which the acrylic type resin having a particle configuration with a size of from 10 nm to 500 nm is dispersed in a porous structure of the heat-resistant resin.3. The separator for a non-aqueous secondary battery according to claim 2 , wherein a glass transition temperature of the acrylic type resin is from 0° C. to 80° C.4. The separator for a non-aqueous secondary battery according to claim 1 , wherein the heat-resistant adhesive porous layer has a structure in which a surface of the porous structure of the heat-resistant resin and/or inside surface of pores of the porous structure of the heat-resistant resin is coated with the acrylic type resin.5. The separator for a non-aqueous secondary battery according to claim 4 , wherein a glass transition temperature of the acrylic type resin is less than 0° C.6. The separator for a non-aqueous secondary battery according to claim 1 , wherein the heat-resistant resin is one or more selected from the group consisting of a ...

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Номер записи: 55

07-02-2019 дата публикации

Binder composition for non-aqueous secondary battery electrode, slurry composition for non-aqueous secondary battery electrode, electrode for non-aqueous secondary battery, and non-aqueous secondary battery

Номер: US20190044148A1

Автор: Norikazu Yamamoto

Принадлежит: Zeon Corp

Provided is a binder composition for a non-aqueous secondary battery electrode that enables formation of an electrode for a non-aqueous secondary battery that has excellent peel strength and can cause a non-aqueous secondary battery to display excellent cycle characteristics. A binder composition according to a first aspect contains a particulate polymer A1 that includes an aliphatic conjugated diene monomer unit in a proportion of 70 mass % to 99 mass % and a carboxylic acid group-containing monomer unit in a proportion of 1 mass % to 30 mass %. A binder composition according to a second aspect contains a particulate polymer A2 that includes an aliphatic conjugated diene monomer unit in a proportion of 70 mass % to 95 mass % and a (meth)acrylic acid ester monomer unit in a proportion of 1 mass % to 30 mass %, and that has a degree of swelling in electrolyte solution of a factor of 1.2 to 7.0.

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Номер записи: 56

18-02-2021 дата публикации

Solid-state battery having an electrode comprising of an electronically conductive polymer

Номер: US20210050596A1

Автор: Deween Kong, Haijing Liu, Mengyan Hou, Yong Lu, Zhe Li

Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A solid-state battery cell for a lithium ion battery is disclosed. The battery cell includes a first electrode; a second electrode; and an ionically conductive layer sandwiched between the first electrode and the second electrode. At least one of the first electrode and the second electrode includes an electronically conductive polymer (ECP). The at least one of the first electrode and the second electrode comprises about 20-98 weight percent (wt %) of an active material, about 0.1-30 wt % of the ECP, and about 5-70 wt % of an ionically conductive material that includes one or more of a solid-state electrolyte (SSE) material and a lithium salt.

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Номер записи: 57

19-02-2015 дата публикации

Positive electrode for secondary battery, and secondary battery

Номер: US20150050555A1

Автор: Arinobu Katada, Kei Kobayashi, Mayumi Fukumine

Принадлежит: Zeon Corp

A positive electrode for a secondary battery wherein the electrode includes a collector and a positive electrode active material layer which is stacked upon the collector, and which includes a positive electrode active material, a conductive agent, and a binder; the binder includes a first polymer and a second polymer; the first polymer is a fluorine-containing polymer; the second polymer includes a polymerized moiety having a nitrile group, a polymerized moiety having a hydrophilic group, a polymerized (meth)acrylic acid ester moiety, and a straight-chain polymerized alkylene moiety having a carbon number of at least 4; the proportion of the first polymer and the second polymer in the binder, expressed as a mass ratio, is in the range of 95:5 to 5:95.

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Номер записи: 58

16-02-2017 дата публикации

POROUS CARBON MATERIAL FOR ELECTRODE OF ENERGY STORAGE DEVICE AND METHOD FOR MANUFACTURING SAID MATERIAL

Номер: US20170047173A1

Автор: EGAWA Yoshifumi, NISHIMURA Shushi, NISHITA Yumika, OTSUKA Kiyoto

Принадлежит: KURARAY CHEMICAL CO., LTD.

A porous carbon material for electrodes of energy storage devices comprising: a porous carbon material; 0.5 to 5 parts by mass of an insulating material having a boiling point of 150° C. or more based on 100 parts by mass of the porous carbon material; and 0.25 to 15 parts by mass of a conductive additive based on 100 parts by mass of the insulating material, wherein the insulating material and the conductive additive are carried on the porous carbon material in combination, and the porous carbon material has a BET specific surface area of 1300 to 2050 m/g. 1: A porous carbon material composition for electrodes of energy storage devices , the porous carbon material composition comprising:a porous carbon material;0.5 to 5 parts by mass of an insulating material having a boiling point of 150° C. or more based on 100 parts by mass of the porous carbon material; and0.25 to 15 parts by mass of a conductive additive based on 100 parts by mass of the insulating material,wherein:the insulating material and the conductive additive are carried on the porous carbon material in combination; and{'sup': '2', 'the porous carbon material has a BET specific surface area of 1300 to 2050 m/g.'}2: The porous carbon material composition according to claim 1 , wherein kinetic viscosity at 25° C. of the insulating material is 1 to 1000 mm/s.3: The porous carbon material composition according claim 1 , wherein pour point of the insulating material is −30° C. or less.4: The porous carbon material composition according to claim 1 , wherein the insulating material is a siloxane compound having siloxane units in a main chain.5: The porous carbon material composition according to claim 1 , wherein a high-molecular compound is also carried in combination.6: A method for manufacturing a porous carbon material composition for electrodes of energy storage devices claim 1 , the method comprising contacting a porous carbon material with an insulating material and a conductive additive claim 1 , ...

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Номер записи: 59

15-02-2018 дата публикации

USE OF PEDOT/PSS IN A CATHODE OF A LITHIUM-SULFUR ELECTROCHEMICAL CELL

Номер: US20180047988A1

Автор: Gaiser Detlef, Lövenich Wilfried, Seuring Jan

Принадлежит:

The present invention relates to a liquid composition comprising a) at least one cationic polythiophene; b) at least one polymeric counterion; c) sulfur; d) at least one solvent having a boiling point of 80° C. or more; e) at least one conductivity improving agent; wherein the liquid composition comprises less than 10 wt.-% of components having a boiling point of less than 80° C., based on the total weight of the liquid composition, and wherein the boiling point in each case is determined at a pressure of 1013 mbar. The present invention also relates to a powdered composition comprising components a), b) and c), wherein the cationic polythiophene and the at least one polymeric counterion are present in the form of a cationic polythiophene:polymeric counterion-complex, to a process for preparing a liquid or powdered composition, a liquid or powdered composition obtainable by this process, to a lithium sulfur electrochemical cell and to the use of the liquid or the powdered composition. 1. A liquid composition comprisinga) at least one cationic polythiophene;b) at least one polymeric counterion;c) sulfur;d) at least one solvent having a boiling point of 80° or more;e) at least one conductivity improving agent;wherein the liquid composition comprises less than 10 wt.-% of components having a boiling point of less than 80° C., based on the total weight of the liquid composition, and wherein the boiling point in each case is determined at a pressure of 1013 mbar.2. The liquid composition according to claim 1 , wherein the composition comprises the at least one conductivity improving agent e) in an amount of at least 0.1 wt.-% claim 1 , based on the total amount of the liquid composition.3. The liquid composition according to claim 1 , wherein solvent d) is water.4. The liquid composition according to claim 1 , wherein the conductivity improving agent is liquid at 20° C. and 1013 mbar and has a boiling point of more than 100° C.5. The liquid composition according to claim ...

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Номер записи: 60

03-03-2022 дата публикации

METHOD FOR MANUFACTURING ALL-SOLID-STATE BATTERY

Номер: US20220069287A1

Автор: Matsunaga Masafumi

Принадлежит: Mtek-smart Corporation

A high-density layer can be formed and adherence increased by causing a slurry formed primarily from an electrode active material and a solvent and a slurry formed primarily from electrolyte particles and the solvent to alternately collide with a subject material with an impact force and to adhere and be layered thereon in thin film. A slurry formed primarily from a conductive additive and the solvent is separately created and is coated in a dispersed manner in a small quantity at a desired position. Carbon residue is eliminated or greatly reduced and battery performance improved by eliminating a binder or greatly reducing the binder content.

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Номер записи: 61

03-03-2022 дата публикации

Composition for lithium battery electrodes

Номер: US20220069309A1

Автор: Julio A. Abusleme, Maurizio Biso, Riccardo Rino PIERI

Принадлежит: Solvay Specialty Polymers Italy SpA

The present invention pertains to an electrode-forming composition, to use of said electrode-forming composition in a process for the manufacture of a composite electrode, to said composite electrode and to a secondary battery comprising said composite electrode.

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Номер записи: 62

14-02-2019 дата публикации

NANOCOMPOSITE OF A NANOPOROUS MATERIAL AND AN ACTIVE MATERIAL AND METHOD OF SYNTHESIZING THEREOF

Номер: US20190051892A1

Автор: LEI Danni, YUSHIN Gleb

Принадлежит: GEORGIA TECH RESEARCH CORPORATION

In an embodiment, an active material-based nanocomposite is synthesized by infiltrating an active material precursor into pores of a nanoporous carbon, metal or metal oxide material, and then annealing to decompose the active material precursor into a first gaseous material and an active material and/or another active material precursor infiltrated inside the pores. The nanocomposite is then exposed to a gaseous material or a liquid material to at least partially convert the active material and/or the second active material precursor into active material particles that are infiltrated inside the pores and/or to infiltrate a secondary material into the pores. The nanocomposite is again annealed to remove volatile residues, to enhance electrical contact within the active material-based nanocomposite composite and/or to enhance one or more structural properties of the nanocomposite. In a further embodiment, the pores may be further infiltrated with a filler material and/or may be at least partially sealed. 1. An active material-based nanocomposite for using in an electrolyte-containing electrochemical energy storage device , comprising:a nanoporous carbon, metal, or metal oxide material;active material particles infiltrated in pores of the nanoporous carbon, metal or metal oxide material; anda filler material infiltrated in the pores separately from the active material particles and/or a sealing material that at least partially closes the pores,wherein the active material particles comprise Fe, andwherein the active material particles comprise from about 30 vol. % to about 96 vol. % of a total volume of the active material-based nanocomposite.2. The active material-based nanocomposite of claim 1 , wherein the nanocomposite comprises an oxide claim 1 , hydroxide claim 1 , oxy-hydroxide claim 1 , sulfide claim 1 , fluoride claim 1 , an oxy-fluoride or hydride of Fe claim 1 , Zn claim 1 , Ni claim 1 , Mn claim 1 , Ag claim 1 , Al claim 1 , Cu claim 1 , Si claim 1 , Ti ...

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Номер записи: 63

22-02-2018 дата публикации

HIGH-CAPACITY POSITIVE ELECTRODE ACTIVE MATERIAL

Номер: US20180053934A1

Автор: Ceder Gerbrand, HAUTIER Geoffroy, KIM Sangtae, LEE Jinhyuk, Li Xin, Urban Alexander

Принадлежит:

This disclosure provides a positive electrode active lithium-excess metal oxide with composition LiMO(0.6≦y≦0.85 and 0≦x+y≦2) for a lithium secondary battery with a high reversible capacity that is insensitive with respect to cation-disorder. The material exhibits a high capacity without the requirement of overcharge during the first cycles. 2. The oxide of wherein the intensity I′ is reduced by at least 10% upon subjecting the oxide to at least one lithium ion extraction-insertion cycle.34-. (canceled)5. The oxide of wherein the ratio I′/I″ is reduced by at least 10% upon subjecting the oxide to at least one lithium ion extraction-insertion cycle.6. (canceled)7. (canceled)8. The oxide of wherein the distribution of cations becomes more random or disordered among cation layers upon subjecting the oxide to at least one lithium ion extraction-insertion cycle.9. A lithium metal oxide characterized by a general formula LiMOwherein 0.6≦y≦0.85 claim 1 , 0≦x+y≦2 claim 1 , and M being one or more of a metallic species chosen from the group consisting of Al claim 1 , Ti claim 1 , V claim 1 , Cr claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Zn claim 1 , Zr claim 1 , Nb claim 1 , Mo claim 1 , Ru claim 1 , Sn and Sb; said oxide claim 1 , as synthesized claim 1 , showing a random or partially random distribution of Li cations and M cations in the oxygen arrangement of the rock-salt structure claim 1 , as measurable by XRD.11. The oxide of claim 10 , wherein I′ is essentially zero claim 10 , so that I′/I″≦0.01.12. The oxide of which in the absence of oxygen oxidation is characterized by a first charge capacity of at least 150 mAh/g when charging at room temperature at C/20 rate which is the rate to potentially utilize the full theoretical capacity Cin 20 hours.13. The oxide of claim 1 , wherein the distance between any two neighboring oxygen planes in any lattice direction is less than 2.55 Å upon subjecting the oxide to at least one lithium insertion ...

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Номер записи: 64

13-02-2020 дата публикации

DUAL ELECTRON-ION CONDUCTIVE POLYMER COMPOSITE

Номер: US20200052300A1

Автор: Hammond Paula T., McDonald Michael

Принадлежит:

The present disclosure provides a composite material comprising an electrically conductive polymer, such as poly(3,4-ethylenedioxythiophene) (PEDOT) and an ionically conductive polymer, such as poly(ethylene oxide) (PEO). This composite forms a dual conductor for three-dimensional electrodes in electrochemical applications including lithium ion batteries. 1. A composite material for an electrode , comprising a polymer matrix , the polymer matrix comprising:a first phase, the first phase comprising an electrically conductive polymer, wherein the first phase is substantially continuous; anda second phase, the second phase comprising an ion-conducting polymer.2. The composite material of claim 1 , wherein the electrically conductive polymer is poly(3 claim 1 ,4-ethylenedioxythiophene) (PEDOT) or a derivative thereof.3. The composite material of claim 2 , wherein the electrically conductive polymer is selected from the group consisting of poly(3 claim 2 ,4-ethylenedioxythiophene) (PEDOT) claim 2 , poly 2 claim 2 ,3-dihydrothieno[3 claim 2 ,4][1 claim 2 ,4]dioxin-2-yl methanol (PEDOT-CH—OH) claim 2 , poly 3 claim 2 ,4-dihydro-2H-thieno[3 claim 2 ,4-b][1 claim 2 ,4]dioxepin-3-01 (PropOT) claim 2 , or a derivative of any of the foregoing.4. The composite material of claim 1 , wherein the ion-conducting polymer is a lithium ion-conducting polymer.5. The composite material of claim 4 , wherein the lithium-conducting polymer is a poly(ethylene oxide) (PEO) or a poly(propylene oxide) (PPO) claim 4 , or a derivative of the foregoing.6. The composite material of claim 5 , wherein the lithium-conducting polymer is poly(ethylene oxide) (PEO).7. The composite material of claim 1 , further comprising a surfactant.8. The composite material of claim 7 , wherein the surfactant is a polymeric surfactant.9. The composite material of claim 8 , wherein the surfactant is poly(styrene sulfonate).10. The composite material of claim 1 , further comprising a particulate active material.11. The ...

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Номер записи: 65

13-02-2020 дата публикации

ELECTRODE MATERIALS AND PROCESSES FOR THEIR PREPARATION

Номер: US20200052302A1

Автор: ARAI Narumi, DAIGLE Jean-Christophe, MALLET Charlotte, ROCHON Sylviane, Uesaka Shinichi, Zaghib Karim

Принадлежит:

This application describes an electrode material comprising an indigoid compound, i.e. indigo blue or a derivative thereof, for instance, together with particles of an electrochemically active material dispersed in a binder. Processes for the preparation of the electrode material and electrodes containing the material, as well as to the electrochemical cells and their use are also contemplated. 2. The electrode material of claim 2 , wherein X is O claim 2 , S or NH.3. The electrode material of claim 1 , wherein X is NH.4. The electrode material of any one of to claim 1 , wherein the compound is of Formula I.5. The electrode material of any one of to claim 1 , wherein the compound is of Formula II.6. The electrode material of any one of to claim 1 , wherein the compound is of Formula III.7. The electrode material of any one of to claim 1 , wherein Rand Rare the same and selected from halogen (e.g. F) claim 1 , optionally halogenated alkyl claim 1 , —CN claim 1 , and —SOOM claim 1 , e.g. —CN.8. The electrode material of any one of to claim 1 , wherein Rand Rare the same and selected from halogen (e.g. F) claim 1 , optionally halogenated alkyl claim 1 , —CN claim 1 , and —SOOM claim 1 , e.g. —CN.9. The electrode material of any one of to claim 1 , wherein each of Rto Rare each a hydrogen atom.10. The electrode material of any one of to claim 1 , wherein the compound is of Formula IV.11. The electrode material of claim 10 , wherein Ris selected from halogen (e.g. F) claim 10 , optionally halogenated alkyl claim 10 , —CN claim 10 , and —SOOM claim 10 , e.g. Ris —CN.12. The electrode material of claim 10 , wherein each of Rto Rare each a hydrogen atom.14. The electrode material of claim 1 , wherein the compound is indigo blue.15. The electrode material of claim 1 , wherein the compound is leuco-indigo or a salt thereof.16. The electrode material of claim 1 , wherein the compound is selected from indigo claim 1 , indigo carmine claim 1 , isoindigo claim 1 , indigopurpurin ...

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Номер записи: 66

05-03-2015 дата публикации

Mcm-48 silica particle compositions, articles, methods for making and methods for using

Номер: US20150061598A1

Автор: Cheng-Yu Lai

Принадлежит: EI Du Pont de Nemours and Co

There is a composition comprising mesoporous silica particles. The particles may have a MCM-48 three-dimensional framework and be characterized by having a surface area of about 300 to 2,000 square meters per gram, a pore volume of about 0.5 to 1.5 cubic centimeters per gram, an average pore diameter dimension of about 1 to 20 nanometers, and an average particle size of about 5 to 2,000 nanometers based on the average diameter of the silica particles. There is also a lithium-sulfur cell comprising an article comprising mesoporous silica particles. The cell also comprises a negative electrode, a circuit coupled with the negative electrode, a lithium-containing electrolyte medium and an interior wall of the cell. There are also associated methods of making and methods of using the silica particles and the cell.

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Номер записи: 67

10-03-2022 дата публикации

BIPOLAR LEAD ACID BATTERY CELLS WITH INCREASED ENERGY DENSITY

Номер: US20220077506A1

Автор: Eskra Michael David, Johnson Richard Thomas, Ralston Paula Margaret

Принадлежит:

A bipolar lead acid battery with increased energy density is provided. The battery includes a number of lead acid wafer cell that each comprise a negative electrode having a negative electrode plate and a negative active material positioned on the negative electrode plate, as well as a positive electrode having a positive electrode plate and a positive active material positioned on the positive electrode plate. The positive electrode plate comprises a metal foil with a conductive film thereon, such as a titanium foil or substrate with a titanium silicide coating thereon. The lead acid wafer cell also includes a separator between the negative and positive electrodes, wherein the separator includes an electrolyte for transferring charge between the negative and positive electrodes. 1. A bipolar lead acid battery comprising:{'claim-text': ['a negative electrode including a negative electrode plate and negative active material;', 'a positive electrode including a positive electrode plate and positive active material, the positive plate comprising a metal foil with an electrically conductive film thereon;', 'a separator between the electrodes, wherein the separator includes an electrolyte; and', 'a cell enclosure surrounding the negative and positive electrodes and the separator that seals the cell so as to contain the electrolyte within the cell, the cell enclosure comprising a plurality of perforations therein that provide for electrical connectivity between adjacent cells.'], '#text': 'a stack of at least two cells electrically arranged in series with a positive face of each cell contacting a negative face of an adjacent cell, wherein each of the cells comprises:'}2. The bipolar lead acid battery of wherein the metal foil comprises a titanium foil and the electrically conductive film comprises a titanium silicide coating.3. The bipolar lead acid battery of wherein the titanium silicide coating is a pore-free titanium silicide coating.4. The bipolar lead acid battery ...

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Номер записи: 68

01-03-2018 дата публикации

COMPOSITE MATERIAL OF ALKALINE METAL SULFIDE AND CONDUCTING AGENT

Номер: US20180062161A1

Автор: Aburatani Ryo, Ota Tsuyoshi, Senga Minoru, Yanagi Kazuaki

Принадлежит: IDEMITSU KOSAN CO., LTD.

A composite material including a conducting material and an alkali metal sulfide formed integrally on the surface of the conducting material. 110-. (canceled)11. A method for producing a composite material comprising a conducting material and lithium sulfide , the method comprising:reacting raw materials of lithium sulfide present in a solution comprising said raw materials of lithium sulfide and said conducting material so as to integrally form the lithium sulfide on a surface of the conducting material.12. The method according to claim 11 , wherein the conducting material is a carbon material.13. The method according to claim 12 , wherein the carbon material is Ketjen black claim 12 , acetylene black claim 12 , Denka black claim 12 , thermal black claim 12 , channel black claim 12 , meso-porous carbon claim 12 , activated carbon claim 12 , amorphous carbon claim 12 , carbon nanotubes or carbon nanohorns.14. The method according to claim 11 , Wherein the conducting material has fine pores.15. The method according to claim 14 , wherein a BET specific surface area of the conducting material is 1 m/g or more and 5000 m/g or less.16. The method according to claim 14 , wherein an average diameter of the fine pores is 0.1 nm or more and 40 nm or less.17. The method according to claim 16 , wherein a BET specific surface area of the conducting material is 1 m/g or more and 5000 m/g or less and a pore volume of the fine pores is 0.1 cc/g or more and 5.0 cc/g or less.18. The method according to claim 12 , wherein the conducting material has fine pores.19. The method according to claim 18 , wherein a BET specific surface area of the conducting material is 1 m/g or more and 5000 m/g or less.20. The method according to claim 18 , wherein an average diameter of the fine pores is 0.1 nm or more and 40 nm or less.21. The method according to claim 18 , wherein the raw materials comprise hydrogen sulfide and lithium hydroxide.22. The method according to claim 18 , wherein the ...

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Номер записи: 69

22-05-2014 дата публикации

NITROGEN-SULFUR-CARBON NANOCOMPOSITES AND THEIR APPLICATION AS CATHODE MATERIALS IN LITHIUM-SULFUR BATTERIES

Номер: US20140141328A1

Автор: Ben Teng, Dai Sheng, Guo Bingkun, Mayes Richard T., Qiu Shilun, SUN Xiao-Guang, Wang Xiqing

Принадлежит: UT-BATTELLE, LLC

The invention is directed in a first aspect to electron-conducting porous compositions comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein, particularly such compositions having an ordered framework structure. The invention is also directed to composites of such S/N-doped electron-conducting porous aromatic framework (PAF) compositions, or composites of an S/N-doped mesoporous carbon composition, which includes the S/N-doped composition in admixture with a binder, and optionally, conductive carbon. The invention is further directed to cathodes for a lithium-sulfur battery in which such composites are incorporated. 1. An electron-conducting porous composition comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein.2. The composition of claim 1 , comprising an ordered framework structure in which nitrogen atoms are interconnected by unsaturated hydrocarbon linkers claim 1 , wherein said ordered framework structure contains micropores in which sulfur is incorporated.3. The composition of claim 2 , wherein the unsaturated hydrocarbon linkers are phenylene linkers.4. The composition of claim 2 , wherein the ordered framework structure is comprised of interconnected triphenylamine units.5. A composite useful as a cathode for a lithium-sulfur battery claim 2 , the composite comprising:(i) an electron-conducting porous composition comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein; and(ii) a binder.6. The composite of claim 5 , wherein said electron-conducting porous composition is comprised of an ordered framework structure in which nitrogen atoms are interconnected by unsaturated hydrocarbon linkers claim 5 , wherein said ordered framework structure contains micropores in which sulfur is incorporated.7. The composite of claim 6 , wherein the unsaturated hydrocarbon linkers are phenylene linkers.8. The ...

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Номер записи: 70

28-02-2019 дата публикации

HALOGEN DOPED PHOSPHORUS NANOPARTICLES AND MANUFACTURING METHOD THEREOF

Номер: US20190062161A1

Автор: CHANG Wei-Chung, TSENG Kuan-Wei, Tuan Hsing-Yu

Принадлежит:

Halogen-doped phosphorous nanoparticles and a manufacturing method thereof are provided. The manufacturing method includes a mixing process and a centrifugation or filtration process. The mixing process has the step of mixing a precursor with a reducing agent solution to form a mixed solution, the precursor is a halogen-based phosphide. Then, the mixed solution is centrifuged or filtrated to obtain the halogen-doped phosphorous nanoparticles. 1. A method for manufacturing halogen-doped phosphorous nanoparticles , comprising steps of:providing a precursor and a reducing agent, wherein the precursor is a halogen-based phosphide compound;mixing the precursor with the reducing agent to form a mixed solution in which the precursor is reduced by the reducing agent; andcentrifuging or filtering the mixed solution to obtain a halogen-doped phosphorous nanoparticle dispersion including the halogen-doped phosphorous nanoparticles.2. The method for manufacturing halogen-doped phosphorous nanoparticles according to claim 1 , wherein the precursor is a precursor solution claim 1 , the precursor solution is formed by mixing a first solvent with the precursor claim 1 , and the first solvent is a solvent which is miscible with the precursor and inactive with the precursor.3. The method for manufacturing halogen-doped phosphorous nanoparticles according to claim 2 , wherein the first solvent is selected from a group consisting of benzene claim 2 , toluene claim 2 , dichlorobenzene claim 2 , fluorobenzene claim 2 , chlorobenzene claim 2 , bromobenzene claim 2 , iodobenzene claim 2 , and trimethylbenzene.4. The method for manufacturing halogen-doped phosphorous nanoparticles according to claim 1 , wherein the precursor are precursor particles claim 1 , and the precursor particles are added into the reducing agent to form the mixed solution.5. The method for manufacturing halogen-doped phosphorous nanoparticles according to claim 1 , wherein the reducing agent comprises a second ...

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Номер записи: 71

12-03-2015 дата публикации

MESOPOROUS METAL OXIDE MICROSPHERE ELECTRODE COMPOSITIONS AND THEIR METHODS OF MAKING

Номер: US20150069307A1

Автор: BI Zhonghe, Bridges Craig A., Brown Gilbert M., Parans Paranthaman Mariappan

Принадлежит: UT-BATTELLE, LLC

Compositions and methods of making are provided for treated mesoporous metal oxide microspheres electrodes. The compositions include microspheres with an average diameter between about 200 nanometers and about 10 micrometers and mesopores on the surface and interior of the microspheres. The methods of making include forming a mesoporous metal oxide microsphere composition and treating the mesoporous metal oxide microspheres by at least annealing in a reducing atmosphere, doping with an aliovalent element, and coating with a coating composition. 1. A method of making a treated mesoporous metal oxide microsphere composition comprising:{'sup': 2', '2, 'forming a mesoporous metal oxide microsphere composition having: (a) microspheres with an average diameter between 200 nm and 10 μm, and (b) mesopores on the surface and interior of the microspheres, wherein the mesopores have an average diameter between 1 nm and 50 nm and the microspheres have a surface area between 50 m/g and 500 m/g; and'}treating the mesoporous metal oxide microspheres by at least one method selected from the group consisting of: (i) annealing in a reducing atmosphere, (ii) doping with an aliovalent element, and (iii) coating with a coating composition.2. The method of claim 1 , wherein the metal oxide comprises at least one polymorph of titanium dioxide having at least 50 wt. % of a TiOanatase polymorph or at least 50 wt. % of a TiO—B polymorph.3. The method of claim 1 , wherein the treating step is carried out by annealing the mesoporous metal oxide microspheres claim 1 , and the reducing atmosphere is selected from the group consisting of: hydrogen claim 1 , argon claim 1 , nitrogen claim 1 , carbon dioxide claim 1 , and mixtures thereof.4. The method of claim 1 , wherein the treating step is carried out by doping the mesoporous metal oxide microspheres claim 1 , and the aliovalent element is selected from the group consisting of: alkali metals claim 1 , alkaline earth metals claim 1 , transition ...

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Номер записи: 72

12-03-2015 дата публикации

FORMATION OF NANOSIZED METAL PARTICLES ON A TITANATE CARRIER

Номер: US20150071980A1

Автор: Elvington Mark C., Hobbs David T., Taylor-Pashow Kathryn M.L.

Принадлежит: SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC

Methods directed to the synthesis of metal nanoparticles are described. A formation process can be carried out at ambient temperature and pressure and includes the deposition of metal ions on a titanate carrier according to a chemical deposition process followed by exposure of the metal ions to a reducing agent. Upon the exposure, nanoparticles of the reduced metal are formed that are adhered to the titanate carrier. 1. A method of forming metal nanoparticles comprising:depositing metal ions on a titanate carrier, the metal ions having an oxidation state;following the deposition, exposing the metal ions and the titanate carrier to a reducing agent, wherein upon the exposure nanoparticles of the metal are formed on the titanate carrier, the metal of the nanoparticles being reduced from the oxidation state of the metal ions.2. The method of claim 1 , wherein the titanate carrier is a nanosized titanate carrier.3. The method of claim 1 , wherein the titanate carrier is a micron-sized titanate carrier.4. The method of claim 1 , wherein the metal ions are deposited according to a chemical deposition process.5. The method of claim 4 , wherein the chemical deposition process is an ion exchange process.6. The method of claim 1 , wherein the titanate carrier is monosodium titanate.7. The method of claim 1 , wherein the titanate carrier is sodium peroxotitanate.8. The method of claim 1 , wherein the titanate carrier is sodium titanium oxide nanoparticles.9. The method of claim 1 , wherein the reducing agent comprises an alcohol.10. The method of claim 9 , wherein the alcohol is ethanol.11. The method of claim 1 , wherein the reducing agent comprises ultraviolet-visible light.12. The method of claim 1 , wherein the metal is a transition metal.13. The method of claim 12 , wherein the metal is a metal of the platinum group.14. The method of claim 13 , wherein the metal is gold.15. The method of claim 1 , wherein the deposition is carried out at ambient temperature and pressure. ...

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Номер записи: 73

12-03-2015 дата публикации

LITHIUM-ION SECONDARY BATTERY

Номер: US20150072232A1

Автор: Nagai Hiroki

Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

In a lithium-ion secondary battery (), positive electrode active material particles () each include a shell portion () made of a layered lithium-transition metal oxide, a hollow portion () formed inside the shell portion (), and a through-hole () penetrating through the shell portion (). A positive electrode active material layer () has a density A of 1.80 g/cm≦A≦2.35 g/cm, and a negative electrode active material layer () has a density B of 0.95 g/cm≦B≦1.25 g/cm. 1. A lithium-ion secondary battery comprising:a positive electrode current collector;a positive electrode active material layer retained on the positive electrode current collector and containing positive electrode active material particles;a negative electrode current collector; anda negative electrode active material layer retained on the negative electrode current collector and containing negative electrode active material particles comprising a graphite material, a shell portion comprising a layered lithium-transition metal oxide;', 'a hollow portion formed inside the shell portion; and', 'a through-hole penetrating through the shell portion,, 'the positive electrode active material particles each comprisingwherein:{'sup': 3', '3, 'the positive electrode active material layer has a density A of 1.80 g/cm≦A≦2.35 g/cm; and'}{'sup': 3', '3, 'the negative electrode active material layer has a density B of 0.95 g/cm≦B≦1.25 g/cm.'}2. The lithium-ion secondary battery according to claim 1 , wherein claim 1 , when the thickness of the shell portion at an arbitrary position within an inner surface of the shell portion is defined by the minimum distance from the arbitrary position within the inner surface of the shell portion to an outer surface of the shell portion in an arbitrary cross section of the positive electrode active material layer claim 1 , the thickness of the shell portion is less than or equal to 3.0 μm in average of the positive electrode active material layer.3. The lithium-ion secondary battery ...

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Номер записи: 74

17-03-2022 дата публикации

NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

Номер: US20220085355A1

Автор: HAYASHI Naoki

Принадлежит:

The negative electrode active material includes a plurality of first negative electrode active material particles. Each of the first negative electrode active material particles includes a central portion including silicon and a covering portion provided on a surface of the central portion. The covering portion includes a (meth)acrylic acid-based polymer and a compound having a siloxane bond. The (meth)acrylic acid-based polymer includes at least one of poly(meth)acrylate or a derivative of poly(meth)acrylic acid. 1. A negative electrode active material comprisinga plurality of first negative electrode active material particles each including:a central portion including silicon; anda covering portion provided on a surface of the central portion, the covering portion including a (meth)acrylic acid-based polymer and a compound having a siloxane bond,wherein the (meth)acrylic acid-based polymer includes at least one of poly(meth)acrylate or a derivative of poly(meth)acrylic acid.2. The negative electrode active material according to claim 1 , wherein the plurality of first negative electrode active material particles are substantially in contact with each other to form a composite particle.3. The negative electrode active material according to claim 1 , whereina content of the poly(meth)acrylate in each of the first negative electrode active material particles is from 0.1 mass % to 10 mass %, anda content of the compound having a siloxane bond in each of the first negative electrode active material particles is from 0.1 mass % to 10 mass %.4. The negative electrode active material according to claim 2 , whereina content of the poly(meth)acrylate in each of the first negative electrode active material particles is from 0.1 mass % to 10 mass %, anda content of the compound having a siloxane bond in each of the first negative electrode active material particles is from 0.1 mass % to 10 mass %.5. The negative electrode active material according to claim 1 , wherein the ...

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Номер записи: 75

10-03-2016 дата публикации

METHOD OF PRODUCING ELECTRICALLY CONDUCTIVE POLYMER AND CELLULOSE NANOCOMPOSITES

Номер: US20160072131A1

Автор: Pitchai-Mydeen Syed Abthagir, Yan Ning

Принадлежит:

A method is provided for preparing electrically conductive polymer and cellulose nanocomposite particles and nanocomposite materials. Cellulose microparticles coated with a conductive polymer are added to an acid solution for initiating an acid hydrolysis reaction for a prescribed time interval to form conductive polymer coated cellulose nanoparticles. After quenching the acid hydrolysis reaction, the nanoparticles are separated to obtain a colloidal solution of conductive nanoparticles. The conductive nanoparticles may be subsequently formed into a solid nanocomposite material such as a conductive film. Transparent conductive films may be prepared by forming thin layers having a thickness on a micron or submicron scale. 1. A method of preparing an electrically conducting nanocomposite material , the method comprising the steps of:providing cellulose microparticles coated with a conductive polymer;adding the microparticles to an acid solution for initiating an acid hydrolysis reaction;reacting the microparticles with the acid to form nanoparticles comprising the conductive polymer and the cellulose;quenching the acid hydrolysis reaction; andseparating the nanoparticles from the acid solution to obtain a colloidal solution of the nanoparticles.2. The method according to further comprising:pouring the colloidal solution onto a solid surface; anddrying the colloidal solution to obtain a nanocomposite layer.3. The method according to further comprising removing the nanocomposite layer claim 2 , so that the nanocomposite layer is free-standing.4. The method according to wherein the nanocomposite layer has a thickness suitable for optical transmission.5. The method according to wherein the nanocomposite layer has a thickness on a micron scale.6. The method according to wherein the nanocomposite layer has a thickness on a submicron scale.7. The method according to wherein the conductive polymer is polypyrrole.8. The method according to wherein the conductive polymer is ...

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Номер записи: 76

28-02-2019 дата публикации

Graphene oxide, positive electrode for nonaqueous secondary battery using graphene oxide, method of manufacturing positive electrode for nonaqueous secondary battery, nonaqueous secondary battery, and electronic device

Номер: US20190067701A1

Автор: Hiroatsu TODORIKI, Masaki YAMAKAJI, Mikio Yukawa, Rika Yatabe, Tatsuya IKENUMA, Yumiko Saito

Принадлежит: Semiconductor Energy Laboratory Co Ltd

A graphene oxide used as a raw material of a conductive additive for forming an active material layer with high electron conductivity with a small amount of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery using the graphene oxide as a conductive additive is provided. The graphene oxide is used as a raw material of a conductive additive in a positive electrode for a nonaqueous secondary battery and, in the graphene oxide, the atomic ratio of oxygen to carbon is greater than or equal to 0.405.

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Номер записи: 77

28-02-2019 дата публикации

Stable room-temperature sodium-sulfur battery

Номер: US20190067730A1

Автор: Lynden A. Archer, Shuya WEI

Принадлежит: CORNELL UNIVERSITY

A sodium-ion conducting (e.g., sodium-sulfur) battery, which can be rechargeable, comprising a microporous host-sulfur composite cathode as described herein or a liquid electrolyte comprising a liquid electrolyte solvent and a liquid electrolyte salt or electrolyte additive as described herein or a combination thereof. The batteries can be used in devices such as, for example, battery packs.

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Номер записи: 78

28-02-2019 дата публикации

LITHIUM ION SECONDARY BATTERY

Номер: US20190067735A1

Автор: FUJIOKA Masato

Принадлежит:

A lithium ion secondary battery that includes a positive electrode having a positive electrode mixture layer containing a positive electrode active material using a lithium-containing metal phosphate compound having an olivine structure and a conductive aid in a particulate form. Moreover, a negative electrode has a negative electrode mixture layer with a separator interposed between the positive and negative electrodes. The thickness of the positive electrode mixture layer is 75 μm or less. Furthermore, the positive electrode active material is formed from secondary particles having a diameter of 10 or less, with the secondary particles being formed by flocculating multiple primary particles having a particle size of 1 μm or less. The conductive aid has one or more constituent particles contained within a range of 5 μm from a center of the primary particle. 1. A lithium ion secondary battery comprising:at least one positive electrode having a positive electrode mixture layer including a positive electrode active material with a lithium-containing metal phosphate compound having an olivine structure and a conductive aid in a particulate form;at least one negative electrode having a negative electrode mixture layer;at least one separator interposed between the at least one positive electrode and the at least one negative electrode, respectively; anda nonaqueous electrolyte,wherein the positive electrode mixture layer comprises a thickness of 75 μm or less and includes a plurality of secondary particles each having a diameter of 10 μm or less,wherein the secondary particles are formed by a plurality of flocculated primary particles each having a particle size of 1 μm or less, andwherein the conductive aid includes at least one constituent particle that is disposed within 5 μm from a center of at least one of the primary particles, respectively.2. The lithium ion secondary battery according to claim 1 , wherein the thickness of the positive electrode mixture layer is ...

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Номер записи: 79

27-02-2020 дата публикации

Negative electrode with carbon-based thin film, manufacturing method therefor, and lithium secondary battery comprising same

Номер: US20200067075A1

Автор: Eun Kyung Kim, Heewon CHOI, Jeong Woo SHON, Ki Hwan Kim, Ohbyong CHAE, Sangwook Woo

Принадлежит: LG Chem Ltd

A negative electrode having a carbon-based thin film formed on at least one surface of a lithium metal layer, and a lithium secondary battery including the same. A carbon-based thin film formed on at least one surface of a lithium metal layer blocks side reactions caused by direct contact between the lithium metal layer and an electrolyte as well as increasing a specific surface area of a negative electrode, and thereby suppresses lithium dendrite formation, and by obtaining current density distribution uniformly, enhances cycle performance, reduces an overvoltage to improve electrochemical performance of a lithium secondary battery.

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Номер записи: 80

19-03-2015 дата публикации

RESIN COMPOSITION

Номер: US20150076419A1

Автор: SUGIMOTO Hidemasa, TAKAHASHI Tomohiro

Принадлежит:

The present invention provides a resin composition for an electrically conductive resin film which is excellent in electric conductivity, tensile elongation, durability to bending and flexibility and is suitable as electrodes or protective coatings on the electrodes in redox flow batteries. A resin composition includes (A) 100 parts by mass of a thermoplastic resin, (B) 1 to 60 parts by mass of carbon nanotubes and (C) 1 to 100 parts by mass of at least one selected from the group consisting of acetylene black and graphite. 1. A resin composition comprising(A) 100 parts by mass of a thermoplastic resin,(B) 1 to 60 parts by mass of carbon nanotubes, and(C) 1 to 100 parts by mass of at least one selected from the group consisting of acetylene black and graphite.2. The resin composition according to claim 1 , wherein component (C) is acetylene black.3. The resin composition according to claim 1 , wherein component (A) is at least one selected from the group consisting of polyethylenes and chlorinated polyethylenes.4. The resin composition according to claim 1 , wherein the composition further comprises(D) 1 to 60 parts by mass of carbon fiber.5. The resin composition according to claim 1 , wherein the composition is to be used for an electrode of a redox flow battery.6. An electrically conductive resin film made of the resin composition according to .7. The electrically conductive resin film according to claim 6 , wherein the film has a volume resistivity in Ω·cm claim 6 , ρ claim 6 , measured according to JIS K 7194 claim 6 , of 10 Ω·cm or less and the volume resistivity claim 6 , ρ claim 6 , meets the following equation (1):{'br': None, 'i': 'E', 'Log ρ<=0.02−1.4\u2003\u2003(1)'}wherein E is a tensile elongation in % of the film which is measured according to JIS K 7127.8. The resin composition according to wherein component (A) is at least one selected form the group consisting of polyethylenes and chlorinated polyethlenes. This application claims the benefits of ...

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Номер записи: 81

11-03-2021 дата публикации

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Номер: US20210075006A1

Автор: Nakayama Tetsuri

Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A non-aqueous electrolyte secondary battery disclosed herein includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer, an insulating layer, and a boundary layer which are provided on the positive electrode current collector. The boundary layer is positioned between the positive electrode active material layer and the insulating layer, and is in contact with the positive electrode active material layer and the insulating layer. The positive electrode active material layer contains a positive electrode active material. The insulating layer contains an inorganic filler. The boundary layer contains the positive electrode active material contained in the positive electrode active material layer and the inorganic filler contained in the insulating layer. The boundary layer contains hydrated alumina. The non-aqueous electrolyte contains lithium fluorosulfonate. 1. A non-aqueous electrolyte secondary battery comprising:a positive electrode;a negative electrode; anda non-aqueous electrolyte, wherein:the positive electrode includes a positive electrode current collector, and a positive electrode active material layer, an insulating layer, and a boundary layer which are provided on the positive electrode current collector;the boundary layer is positioned between the positive electrode active material layer and the insulating layer, and is in contact with the positive electrode active material layer and the insulating layer;the positive electrode active material layer contains a positive electrode active material;the insulating layer contains an inorganic filler;the boundary layer contains the positive electrode active material contained in the positive electrode active material layer and the inorganic filler contained in the insulating layer;the boundary layer contains hydrated alumina; andthe non-aqueous electrolyte contains lithium ...

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Номер записи: 82

19-03-2015 дата публикации

METHOD FOR MANUFACTURING SILICON FLAKES, SILICON-CONTAINING NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING THE SAME

Номер: US20150079472A1

Автор: CHAN Chih-Hung, JENG Rong-Ruey, LIN Han-Tu, LIN Kun-Fung

Принадлежит:

A method for manufacturing silicon flakes includes steps as follows. A silicon material is contacted with a machining tool which includes at least one abrasive particle fixedly disposed thereon. The silicon material is scraped along a displacement path with respect to the machining tool to generate the silicon flakes having various particle sizes. 1. A method for manufacturing silicon flakes , comprising:contacting a silicon material with a machining tool comprising at least one abrasive particle fixedly disposed thereon; andscraping the silicon material along a displacement path with respect to the machining tool to generate the silicon flakes having various particle sizes.2. The method for manufacturing the silicon flakes of claim 1 , wherein the displacement path is a straight line.3. The method for manufacturing the silicon flakes of claim 1 , wherein the displacement path is a curve line.4. The method for manufacturing the silicon flakes of claim 1 , wherein the machining tool is a wire saw claim 1 , a band saw or a grinding disc.5. The method for manufacturing the silicon flakes of claim 1 , wherein the machining tool comprises a plurality of abrasive particles fixedly disposed thereon claim 1 , and the abrasive particles are natural diamonds claim 1 , artificial diamonds claim 1 , cubic boron nitride claim 1 , silicon carbide claim 1 , aluminum oxide or cerium oxide.6. The method for manufacturing the silicon flakes of claim 1 , further comprising:scraping the silicon material along the displacement path back and forth or in one way.7. A method for manufacturing a silicon-containing negative electrode of a lithium ion battery claim 1 , comprising:contacting a silicon material with a machining tool comprising at least one abrasive particle fixedly disposed thereon;scraping the silicon material along a displacement path with respect to the machining tool to generate a plurality of silicon flakes having various particle sizes; andconsolidating the silicon flakes ...

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Номер записи: 83

05-06-2014 дата публикации

COATED PARTICLES FOR LITHIUM BATTERY CATHODES

Номер: US20140154572A1

Автор: Eitouni Hany Basam, Mullin Scott Allen, Pratt Russell Clayton, SINGH Mohit, Wang Xiao-Liang

Принадлежит:

Particles of cathodic materials are coated with polymer to prevent direct contact between the particles and the surrounding electrolyte. The polymers are held in place either by a) growing the polymers from initiators covalently bound to the particle, b) attachment of the already-formed polymers by covalently linking to functional groups attached to the particle, or c) electrostatic interactions resulting from incorporation of cationic or anionic groups in the polymer chain. Carbon or ceramic coatings may first be formed on the surfaces of the particles before the particles are coated with polymer. The polymer coating is both electronically and ionically conductive. 2. The material of wherein the positive electrode active material is selected from the group consisting of layered LiMO—LiMO(M=Mn claim 1 , Co or Ni) claim 1 , concentration-gradient LiMO(M=Mn claim 1 , Co or Ni) claim 1 , LiNiCoAlO claim 1 , and spinel-LiNiMnO claim 1 , LiNiPO claim 1 , LiMnFePO claim 1 , LiCoPO claim 1 , spinel-LiMnO claim 1 , LiNiCoMnO(x+y+z=1) claim 1 , LiCoO claim 1 , LiNiOand LiMnO.3. The material of claim 1 , wherein the material further comprises one or more intervening layer(s) positioned between the positive electrode particle and the polymer layer.4. The material of wherein the intervening layer(s) comprise one or more selected from the group consisting of graphite claim 3 , carbon nanotubes claim 3 , amorphous carbon claim 3 , lithium single-ion conductors claim 3 , LiPON claim 3 , LiSICON claim 3 , LiCoO claim 3 , lithium iron phosphate claim 3 , aluminum claim 3 , copper claim 3 , silica claim 3 , alumina claim 3 , zirconia claim 3 , aluminum fluoride claim 3 , and lithium phosphate.5. The material of wherein the polymer layer further comprises lithium salts and/or dopants.6. The material of wherein the first polymer comprises are one or more selected from the group consisting of polyphosphates claim 1 , high-voltage-stable polymers claim 1 , ionically conductive high- ...

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Номер записи: 84

07-03-2019 дата публикации

Electrode slurry and electrode and lithium secondary battery including the same

Номер: US20190074516A1

Автор: Ki Seok Koh, Seung Min Oh, Yeol Mae Yeo, Yoon Sung Lee

Принадлежит: Hyundai Motor Co, Kia Motors Corp

Provided are electrode slurry including (A) an electrode active material, (B) a conductive material, and (C) a binder containing a cellulose compound, styrene-butadiene rubber and lithium polyacrylic acid at the same time, and an electrode and a lithium secondary battery including the slurry.

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Номер записи: 85

17-03-2016 дата публикации

CATHODE MATERIAL FOR SECONDARY BATTERIES, METHOD FOR PRODUCING CATHODE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY

Номер: US20160079601A1

Автор: Hatta Naoki, IWABUCHI Wataru, Shimomura Noriyuki, YOSHIO Masaki, YOSHITAKE Hideya

Принадлежит: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.

A cathode material for Li ion secondary batteries has high output and high energy density with excellent electron conductivity and Li ion conductivity. The cathode material contains an electrode active material base containing Li, which is capable of electrode oxidation/reduction accompanied by desorption and absorption of Li ions in a potential range of 4 V or more and 5 V or less based on a metal Li negative electrode and has a reversible charge/discharge capacity accompanying the electrode oxidation/reduction in the potential range described above of 30 mAh or more per 1 g. Surfaces of primary particles of an electrode active material base are coated with a layer containing a conductive polymer and a negative ion that enables the conductive polymer to produce electron conductivity equal to or higher than the electron conductivity of the electrode active material itself. 1. A cathode material for secondary batteries comprising:an electrode active material base containing Li, whereinthe electrode active material base is capable of electrode oxidation/reduction accompanied by desorption and absorption of Li ions in a potential range of 4 V or more and 5 V or less based on a metal Li negative electrode and has a reversible charge/discharge capacity accompanying the electrode oxidation/reduction in the potential range described above of 30 mAh or more per 1 g, andsurfaces of primary particles of the electrode active material base are coated with a layer containing a conductive polymer and negative ions which enable the conductive polymer to produce electron conductivity equal to or higher than the electron conductivity of the electrode active material itself.2. The cathode material for secondary batteries according to characterized in that the electrode active material base is capable of the electrode oxidation/reduction accompanied by desorption and absorption of Li ions in the potential range of 4.3 V or more and 5 V or less based on a metal Li negative electrode ...

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Номер записи: 86

15-03-2018 дата публикации

BENDABLE, CREASABLE, AND PRINTABLE BATTERIES WITH ENHANCED SAFETY AND HIGH TEMPERTURE STABILITY - METHODS OF FABRICATION, AND METHODS OF USING THE SAME

Номер: US20180076453A1

Автор: Blake Aaron J., DURSTOCK MICHAEL F., Kohlmeyer Ryan R.

Принадлежит: Government of the United States as Represented by the Secretary of the Air Force

A current collector. The current collector including a porous substrate and an active coating on the porous substrate. The active coating including an active material, a conductive additive, a binder, and an organic solvent. 1. A current collector comprising:a porous substrate; andan active coating on the porous substrate, the active coating comprising an active material, a conductive additive, a binder, and an organic solvent.2. The current collector of claim 1 , wherein the porous substrate is selected from the group consisting of a multi-walled carbon nanotube mat claim 1 , a textile claim 1 , a paper claim 1 , a metal mesh claim 1 , and an array of metallic nanowires.3. The current collector of claim 1 , wherein the active material is selected from the group consisting of LiTiO claim 1 , LiCoO claim 1 , LiMnO claim 1 , LiFePO claim 1 , LiNiMnCoO claim 1 , and carbon nanofibers claim 1 , silicon claim 1 , graphite claim 1 , and combinations thereof.4. The current collector of claim 1 , wherein the conductive additive is a carbon-based material or a metallic material.5. The current collector of claim 4 , wherein the conductive additive is selected from the group consisting of graphite claim 4 , carbon black claim 4 , carbon nanotubes claim 4 , carbon nanofibers claim 4 , Al claim 4 , Cu claim 4 , Ag claim 4 , Ni claim 4 , and combinations thereof.6. The current collector of claim 1 , wherein the binder is selected from the group consisting of PVDF claim 1 , PVDF-HFP claim 1 , PTFE claim 1 , PEO claim 1 , PMMA claim 1 , PAN claim 1 , and combinations thereof.7. The current collector of claim 1 , wherein the organic solvent is selected from the group consisting of NMP claim 1 , DMF claim 1 , acetone claim 1 , DMAc claim 1 , DMSO claim 1 , trimethyl urea claim 1 , triethyl phosphate claim 1 , and combinations thereof.8. The current collector of claim 1 , further comprising:a non-solvent configured to cause binder self-interaction.9. The current collector of claim 8 , ...

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Номер записи: 87

15-03-2018 дата публикации

Lithium ion secondary battery and method of manufacturing same

Номер: US20180076462A1

Автор: Kazuhisa Takeda, Keisuke Ohara

Принадлежит: Toyota Motor Corp

A lithium ion secondary battery includes a negative electrode, a positive electrode, and a non-aqueous electrolyte solution. The non-aqueous electrolyte solution includes a lithium salt and an aprotic solvent. The negative electrode includes a composite particle. The composite particle includes a negative electrode active material and tungsten trioxide. The negative electrode active material contains graphite. The tungsten trioxide is disposed on a surface of the negative electrode active material.

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Номер записи: 88

16-03-2017 дата публикации

ELECTRODE ACTIVE MATERIAL, ELECTRODE AND SECONDARY BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE ELECTRODE ACTIVE MATERIAL

Номер: US20170077497A1

Автор: LEE Byoungsun, LEE Jaemyung, Lee Kanghee, Lim Minwoo, Ogata Ken, TAKEI Koichi

Принадлежит:

An electrode active material including a secondary particle, the secondary particle including: a plurality of primary particles including a silicon-containing material; an electrically conductive material; and a chemically cross-linked water-insoluble polymer. Also an electrode, and a secondary battery, both of which include the electrode active material, and a method of preparing the electrode active material. 1. An electrode active material comprising a secondary particle , the secondary particle comprising:a plurality of primary particles of a silicon-containing material;an electrically conductive material; anda chemically cross-linked water-insoluble polymer.2. The electrode active material of claim 1 , wherein the chemically cross-linked water-insoluble polymer is effective as a reaction barrier to lithium ions and as a diffusion barrier to lithium ions claim 1 , with respect to the plurality of primary particles of the silicon-containing material.3. The electrode active material of claim 1 , wherein the chemically cross-linked water-insoluble polymer is uncarbonized.4. The electrode active material of claim 1 , wherein the chemically cross-linked water-insoluble polymer comprises at least one selected from polyvinyl alcohol claim 1 , poly(acrylic acid) claim 1 , a poly(acrylic acid) substituted with an alkali cation or an ammonium ion claim 1 , polyimide claim 1 , polyamideimide claim 1 , polyvinylidene fluoride claim 1 , carboxymethyl cellulose claim 1 , carboxymethyl cellulose sodium salt claim 1 , carboxymethyl cellulose ammonium salt claim 1 , methylcellulose claim 1 , hydroxymethylcellulose claim 1 , hydroxypropyl cellulose claim 1 , ethyl cellulose claim 1 , diacetyl cellulose claim 1 , polytetrafluoroethylene claim 1 , polyethylene claim 1 , and polypropylene.5. The electrode active material of claim 1 , wherein the electrically conductive material comprises at least one selected from a carbonaceous material claim 1 , a metal nanostructure claim 1 , and ...

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Номер записи: 89

16-03-2017 дата публикации

ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK, AND VEHICLE

Номер: US20170077509A1

Автор: HARADA Yasuhiro, Ise Kazuki, Takami Norio

Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, an active material is provided. This active material includes active material particles each allowing lithium to be inserted thereinto and extracted therefrom in the range of 0.5 V to 2V (vs. Li/Li), and carbon material layers at least partially coating the active material particles. The active material has a BET specific surface area S of 2 m/g to 20 m/g in accordance with a nitrogen adsorption method. Between the BET specific surface area S and the proportion M (mass %) of the mass of the carbon material layers to the total mass of the active material particles and carbon material layers, the ratio of S/M (m/g) meets 0.5≦S/M≦5. 1. An active material comprising:{'sup': '+', 'active material particles each allowing lithium to be inserted thereinto and extracted therefrom in a range of 0.5 V to 2 V (vs. Li/Li); and'}carbon material layers at least partially coating the active material particles, wherein{'sup': 2', '2', '2, 'a BET specific surface area S in a nitrogen adsorption method is 2 m/g to 20 m/g, and a ratio of S/M (m/g) is 0.5≦S/M≦5 between the BET specific surface area S and a proportion M (mass %) of a mass of the carbon material layers to a total mass of the active material particles and the carbon material layers.'}2. The active material according to claim 1 , wherein the BET specific surface area S is 2 m/g to 10 m/g.3. The active material according to claim 1 , wherein the carbon material layers comprise 2 mass % or more of amorphous carbon.4. The active material according to claim 1 , wherein the active material particles comprise a titanium-containing metal composite oxide.5. The active material according to claim 1 , wherein the carbon material layers fall within a range of 0.5 nm to 15 nm in film thickness.6. A nonaqueous electrolyte battery comprising a positive electrode claim 1 , a negative electrode comprising the active material according to claim 1 , and a nonaqueous electrolyte.7. A battery pack comprising the ...

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Номер записи: 90

16-03-2017 дата публикации

Positive electrode including discrete aluminum oxide nanomaterials and method for forming aluminum oxide nanomaterials

Номер: US20170077520A1

Автор: Xiaosong Huang, Xingyi Yang, Yan Wu, Zhongyi Liu

Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A positive electrode includes a lithium-based active material, a binder, a conductive filler, and discrete aluminum oxide nanomaterials. The aluminum oxide nanomaterials are mixed, as an additive, throughout the positive electrode with the lithium-based active material, the binder, and the conductive filler. The positive electrode with the discrete aluminum oxide nanomaterials may be incorporated into a lithium ion battery. The aluminum oxide nanomaterials may be formed by the following method. A solution is formed by mixing an aluminum oxide precursor and an acid. A carbon material is added to the solution, thereby forming an aqueous mixture having the carbon material therein. Hydrothermal synthesis is performed using the aqueous mixture, and precursor nanostructures are grown on the carbon material. The precursor nanostructures on the carbon material are annealed so that the carbon material is removed and aluminum oxide nanomaterials are formed.

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Номер записи: 91

12-06-2014 дата публикации

COLLECTOR AND ELECTRODE STRUCTURE, NON-AQUEOUS ELECTROLYTE CELL, ELECTRICAL DOUBLE LAYER CAPACITOR, LITHIUM ION CAPACITOR, OR ELECTRICITY STORAGE COMPONENT USING SAME

Номер: US20140162122A1

Автор: Honkawa Yukiou, Kadowaki Kenichi, KATO Osamu, Saito Sohei, Wasamoto Mitsuyuki, Yamabe Satoshi

Принадлежит:

An object of the present invention is to improve an adhesion between the surface of a conductive resin layer and an active material, which are provided to a current collector. Another object of the present invention is to improve a high rate characteristics or electrode lifetime of a non-aqueous electrolyte battery, an electrical double layer capacitor, a lithium ion capacitor and the like which uses the current collector. A current collector prepared by forming a resin layer possessing conductivity on a conductive substrate, is provided. A surface roughness Ra of the resin layer possessing conductivity is 0.1 μm or higher and 1.0 μm or lower. In addition, when a coating thickness of the resin layer possessing conductivity is taken as t [μm] and the average angle of inclination of the resin layer surface is taken as θa [degree], (⅓)t+0.5≦θa≦(⅓)t+10 is met. 1. A current collector comprising a conductive substrate and a resin layer possessing conductivity on at least one side of the conductive substrate; whereinthe resin layer possessing conductivity has a surface roughness Ra of 0.1 μm or higher and 1.0 μm or lower; andthe resin layer possessing conductivity has a thickness t [μm] and a surface with an average inclination angle θa [degree], t and θa satisfying an equation of (⅓)t+0.5≦θa≦(⅓)t+10.2. The current collector of claim 1 , wherein the resin layer possessing conductivity contains at least one resin selected from the group consisting of a soluble nitrocellulose-based resin claim 1 , an acryl-based resin claim 1 , and a chitosan-based resin.3. The current collector of claim 1 , wherein the resin layer possessing conductivity contains at least one resin selected from the group consisting of an acryl-based resin claim 1 , a polyacetal-based resin claim 1 , a melamine-based resin claim 1 , and an epoxy-based resin claim 1 , in addition to a soluble nitrocellulose-based resin.4. An electrode structure using the current collector of claim 1 , comprising either one ...

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Номер записи: 92

14-03-2019 дата публикации

Lithium-Ion Battery Conductive Bonding Agent and Production Method Thereof, Lithium-Ion Battery Electrode Plate and Production Method Thereof, and Lithium-Ion Battery

Номер: US20190081350A1

Автор: Wang Pinghua, Wang Zhiyong, XIA Shengan

Принадлежит:

A lithium-ion battery conductive bonding agent, including graphene and a first bonding agent grafted on a surface of the graphene, a production method for the conductive bonding agent, and an electrode plate and a lithium-ion battery that contain the conductive bonding agent, where the first bonding agent includes at least one of polyvinyl alcohol, sodium carboxymethyl cellulose, polyethylene glycol, polylactic acid, polymethyl methacrylate, polystyrene, polyvinylidene fluoride, a hexafluoropropylene polymer, styrene-butadiene rubber, sodium alginate, starch, cyclodextrin, or polysaccharide. The lithium-ion battery conductive bonding agent has good conductive performance and bonding performance and specific strength, improving mechanical strength of a whole electrode plate. The conductive bonding agent integrates a bonding agent and a conductive agent. This can improve content of active substance in the electrode plate, and further increase an energy density of an electrochemical cell. 1. A lithium-ion battery conductive bonding agent , comprising:graphene; anda first bonding agent grafted on a surface of the graphene, the first bonding agent comprising at least one of polyvinyl alcdhol, sodium carboxymethyl cellulose, polyethylene glycol, polylactic acid, polymethyl methacrylate, polystyrene, polyvinylidene fluoride, a hexafluoropropylene polymer, styrene-butadiene rubber, sodium alginate, starch, cyclodextrin, or polysaccharide.2. The lithium-ion battery conductive bonding agent of claim 1 , wherein the first bonding agent is at least one of the polyvinyl alcohol claim 1 , the sodium carboxymethyl cellulose claim 1 , the polyethylene glycol claim 1 , the sodium alginate claim 1 , the starch claim 1 , the cyclodextrin claim 1 , or the polysaccharide claim 1 , the lithium-ion battery conductive bonding agent further comprising a second bonding agent that is grafted on the surface of the graphene claim 1 , the second bonding agent being coupled to the first bonding ...

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Номер записи: 93

24-03-2016 дата публикации

PRODUCTION METHOD FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Номер: US20160087315A1

Автор: Oyama Yutaka

Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A production method for non-aqueous electrolyte secondary batteries includes a conditioning process in which an electrode group having a positive electrode and a negative electrode wound by interposing a separator therebetween is inserted inside a case a non-aqueous electrolyte including an overcharge additive is injected and the case is sealed, after which a restraining pressure is applied to the case, and charge/discharge is performed at least once. After initial charging in the conditioning process, a fracture portion is formed in secondary particles of a positive electrode active material, and then a conductive coating is formed on the fracture portion. 1. A method for producing a non-aqueous electrolyte secondary battery , the method including: inserting an electrode group having a positive electrode and a negative electrode wound by interposing a separator therebetween into a case; injecting a non-aqueous electrolyte solution containing an overcharge additive and hermetically closing the case; and then performing a conditioning process to charge and discharge the battery at least once or more while applying restraining pressure to the case ,wherein the conditioning process includes forming a fracture portion in secondary particles of a positive active material after initial charge, and further forming a conductive coating on the fracture portion.2. The method for producing a non-aqueous electrolyte secondary battery according to claim 1 , wherein the fracture portion is formed by setting the restraining pressure to a lower pressure than normal restraining pressure and performing overdischarge at a high rate.3. The method for producing a non-aqueous electrolyte secondary battery according to claim 1 , wherein the conductive coating is formed by setting the restraining pressure to a lower pressure than normal restraining pressure claim 1 , performing recharge at a low rate claim 1 , and raising an upper limit potential during the recharge to a decomposition ...

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Номер записи: 94

23-03-2017 дата публикации

COMPOSITION FOR LITHIUM ION BATTERY ELECTRODES

Номер: US20170084911A1

Автор: Cai Yingjun, CHEN KUN, Shi Xiu Qin, Wang Zhuo

Принадлежит:

An aqueous composition for making lithium ion battery electrodes comprising (a) one or more polymers, (b) one or more polyvinyl alcohols, and (c) one or more water-soluble cellulose derivatives. Also, a method of making an electrode comprising (i) providing an aqueous slurry comprising (a) one or more polymers, (b) one or more polyvinyl alcohols, (c) one or more water-soluble cellulose derivatives, and (d) one or more conductive material; (ii) forming a layer of said slurry on a metal substrate; and (iii) drying said layer of said slurry. Also, an electrode comprising ingredients (a) through (d). 1. An aqueous composition for making lithium ion battery electrodes , said composition comprising(a) one or more binder polymers in the form of latex particles, wherein the latex particles have a volume-average diameter of 200 nm or smaller,(b) one or more polyvinyl alcohols, and(c) one or more water-soluble cellulose derivatives.2. The composition of claim 1 , said composition additionally comprising one or more cathode compounds that comprise lithium.3. The composition of claim 1 , wherein said polyvinyl alcohol comprises sulfonated polyvinyl alcohol.4. The composition of claim 1 , wherein said water-soluble cellulose derivative comprises sodium carboxymethyl cellulose.5. The composition of claim 1 , wherein said binder polymer comprises one or more acrylic polymer.6. A method of making an electrode suitable for use in a lithium ion battery claim 1 , wherein said method comprises (a) one or more binder polymers in the form of latex particles, wherein the latex particles have a volume-average diameter of 200 nm or smaller,', '(b) one or more polyvinyl alcohols,', '(c) one or more water-soluble cellulose derivatives, and', '(d) one or more conductive materials;, '(i) providing an aqueous slurry comprising'}(ii) forming a layer of said slurry on a metal substrate; and(iii) drying said layer of said slurry.7. The method of claim 6 , wherein said electrode is a cathode claim 6 ...

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Номер записи: 95

31-03-2016 дата публикации

NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY

Номер: US20160093877A1

Автор: Fukumoto Yusuke, Hashimoto Tatsuya, Sano Hideki, UMEYAMA Hiroya, YOKOYAMA Yuji

Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A positive electrode collector includes a main body layer and a surface layer. The surface layer is provided at least at a portion of a surface of the main body layer where the positive electrode mixture layer is provided, and is made of a carbon material. A first positive electrode active material is made of first lithium complex oxide having a layered crystal structure. A second positive electrode active material includes a particle made of second lithium complex oxide having an olivine crystal structure, a carbon film provided at least at a part of a surface of the particle, and alginic acid salt provided at least at a part of a surface of the carbon film. A conducting agent in the positive electrode mixture layer includes a carbon particle and alginic acid salt provided at least at a part of a surface of the carbon particle. 1. A nonaqueous electrolyte rechargeable battery comprising a positive electrode including a positive electrode collector and a positive electrode mixture layer provided on a surface of said positive electrode collector ,said positive electrode collector having a main body layer and a surface layer, said surface layer being provided at least at a portion of a surface of said main body layer where said positive electrode mixture layer is provided, and being made of a carbon material,said positive electrode mixture layer having a first positive electrode active material, a second positive electrode active material, and a conducting agent,said first positive electrode active material being made of first lithium complex oxide having a layered crystal structure,said second positive electrode active material including a particle made of second lithium complex oxide having an olivine crystal structure, a carbon film provided at least at a part of a surface of said particle made of second lithium complex oxide, and alginic acid salt provided at least at a part of a surface of said carbon film,said conducting agent including a carbon particle and ...

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Номер записи: 96

29-03-2018 дата публикации

Electrode for lithium ion battery, lithium ion battery, and method for producing electrode for lithium ion battery

Номер: US20180090762A1

Автор: Hajime Satou, Hideaki Horie, Hiroshi Akama, Kenichi Kawakita, Yasuhiko Ohsawa, Yasuhiro Shindo, Yuki Kusachi, Yusuke Mizuno, Yusuke Nakashima

Принадлежит: Nissan Motor Co Ltd

The objective of the present invention is to provide an electrode for a lithium ion battery which has excellent electron conductivity even when the thickness of the electrode is increased. The electrode for a lithium ion battery according to the present invention includes a first principal surface located on a separator side of the lithium ion battery, and a second principal surface located on a current collector side, wherein the electrode has a thickness of 50 to 5000 μm, and the electrode includes, between the first principal surface and the second principal surface, short fibers (A) having an average fiber length of 50 nm or more and less than 100 μm, long fibers (B) having an average fiber length of 100 μm or more and 1000 μm or less, and active material particles (C), and the short fibers (A) and the long fibers (B) are electroconductive fibers.

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Номер записи: 97

29-03-2018 дата публикации

CATHODE AND LITHIUM AIR BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE CATHODE

Номер: US20180090802A1

Автор: Bae Youngjoon, Im Dongmin, Kang Kisuk, Kim Hyunjin, KWON Hyukjae

Принадлежит:

An air battery cathode includes a carbon composite including a core and a conductive coating layer disposed on the core, wherein the core includes a first carbon material and a second carbon material, wherein the conductive coating layer includes a metal-containing semiconductor. 1. An air battery cathode comprising: a core, and', 'a conductive coating layer disposed on the core,, 'a carbon composite comprising'} 'a first carbon material, a second carbon material, or a combination thereof,', 'wherein the core comprises'}wherein the conductive coating layer comprises a metal-containing semiconductor.2. The cathode of claim 1 , wherein the metal-containing semiconductor comprises a metal belonging to Group 2 to Group 16 of the Periodic Table of the Elements.3. The cathode of claim 1 , wherein the metal-containing semiconductor comprises: a semiconductor comprising an element belonging to Group 14 claim 1 , a semiconductor comprising an element belonging to Group 15 claim 1 , a semiconductor comprising an element belonging to Group 16 claim 1 , a semiconductor comprising elements belonging to Groups 13 and 15 claim 1 , a semiconductor comprising elements belonging to Groups 12 and 16 claim 1 , a semiconductor comprising elements belonging to Groups 11 and 17 claim 1 , a semiconductor comprising elements belonging to Groups 14 and 16 claim 1 , a semiconductor comprising elements belonging to Groups 15 and 16 claim 1 , a semiconductor comprising elements belonging to Groups 12 and 15 claim 1 , and a semiconductor comprising elements belonging to Groups 11 claim 1 , 12 claim 1 , and 16.4. The cathode of claim 1 , wherein the metal-containing semiconductor comprises an oxide of a metal of Groups 2 to 16 claim 1 , a sulfide of metal of Groups 2 to 16 claim 1 , a nitride of metal of Groups 2 to 16 claim 1 , a nitrogen oxide of a metal of Groups 2 to 16 claim 1 , a phosphide of a metal of Groups 2 to 16 claim 1 , an arsenide of metal of Groups 2 to 16 claim 1 , or a ...

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Номер записи: 98

21-03-2019 дата публикации

POSITIVE ELECTRODE MATERIAL AND LITHIUM ION BATTERY

Номер: US20190088938A1

Автор: XU Leimin, Zheng Chunfeng

Принадлежит:

The examples of the present application provide a positive electrode material and a lithium ion battery. The positive electrode material comprises: a substrate material; and a coating material formed on at least one portion of the surface of the substrate material; the general formula of the substrate material being LiCoMOor LiNiCoNO, wherein 0≤x<0.1, 0≤y<0.1 and M is at least one of selected from the group of Mn, Ni, Al, Mg, Ti, Zr, Y, P, Cr; 1/3≤a≤0.82, 0.1≤b≤1/3, 0.6≤a+b, N is at least one of selected from the group of Mn, Al, Mg, Ti, Zr, La, Ce, Y; the coating material includes CeZrO, wherein 0≤z<0.1. By using a positive electrode material coated with CeZrO, the direct current (DC) resistance of the lithium ion battery is greatly reduced. 1. A positive electrode material , comprising:a substrate material; anda coating material formed on at least one portion of the surface of the substrate material;{'sub': 1+x', '1-y', 'y', '2', 'a', 'b', '1-a-b', '2, 'the general formula of the substrate material being LiCoMOor LiNiCoNO, wherein 0≤x<0.1, 0≤y<0.1 and M is at least one of selected from the group of Mn, Ni, Al, Mg, Ti, Zr, Y, P and Cr; 1/3≤a≤0.82, 0.1≤b≤1/3, 0.6≤a+b, N is at least one of selected from the group of Mn, Al, Mg, Ti, Zr, La, Ce and Y;'}{'sub': '4-z', 'the coating material includes CeZrO, wherein 0≤z<0.1.'}2. The positive electrode material according to claim 1 , wherein the coating material accounts for 0.04% to 1% of the total mass of the positive electrode material.3. The positive electrode material according to claim 1 , wherein the coating material accounts for 0.1% of the total mass of the positive electrode material.4. The positive electrode material according to claim 1 , wherein the particle size corresponding to 50% of the volume distribution of the positive electrode material is 4 to 25 μm.5. The positive electrode material according to claim 1 , wherein the particle size corresponding to 50% of the volume distribution of the positive ...

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Номер записи: 99

21-03-2019 дата публикации

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME

Номер: US20190088951A1

Автор: Fukumoto Yusuke, Hanazaki Ryo, OCHIAI Akihiro, Shimamura Harunari

Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A non-aqueous electrolyte secondary battery includes at least an electrode composite material layer, an intermediate layer, and an electrode current collector. Intermediate layer is interposed between electrode composite material layer and electrode current collector. Intermediate layer contains at least insulating particles and conductive particles. Each insulating particle has an arc shape in a cross section of intermediate layer along a thickness direction. More conductive particles are present on an outer-circumference side of each arc shape than on an inner-circumference side of the arc shape. 1. A non-aqueous electrolyte secondary battery comprising at least:an electrode composite material layer;an intermediate layer; andan electrode current collector,the intermediate layer being interposed between the electrode composite material layer and the electrode current collector,the intermediate layer containing at least insulating particles and conductive particles, each insulating particle having an arc shape, and', 'more conductive particles being present on an outer-circumference side of each arc shape than on an inner-circumference side of the arc shape., 'within a cross section of the intermediate layer along a thickness direction,'}2. The non-aqueous electrolyte secondary battery according to claim 1 , whereinthe arc shape comprises an outer-circumference line and an inner-circumference line,a region with a width of 1 μm extending from the outer-circumference line in a direction away from the inner-circumference line is defined as an outer-circumference region, a region with a width of 1 μm extending from the inner-circumference line in a direction away from the outer-circumference line is defined as an inner-circumference region,the conductive particles have a first concentration in the outer-circumference region, the conductive particles have a second concentration in the inner-circumference region, anda ratio of the first concentration to the second ...

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Номер записи: 100