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Publicaciones de los últimos 15 días/Last 15 days publications (excluidas publicaciones CN/CN publications excluded)



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METHOD FOR PRODUCING SOLID ELECTROLYTE

NºPublicación: WO2022163541A1 04/08/2022

Solicitante:

IDEMITSU KOSAN CO [JP]

Resumen de: WO2022163541A1

The present invention addresses the problem of providing: a method for producing a modified sulfide solid electrolyte which is reduced in the generation amount of a hydrogen sulfide gas even if the sulfide solid electrolyte comes into contact with moisture and hydrogen sulfide is generated, while being suppressed in decrease in the ionic conductivity; this modified sulfide solid electrolyte; and an electrode mixture material and a lithium ion battery, each of which uses this modified sulfide solid electrolyte. A method for producing a modified sulfide solid electrolyte according to the present invention comprises mixing of a sulfide solid electrolyte with Li2S; and (100 - α) parts by mass of the sulfide solid electrolyte is used per α parts by mass of Li2S (meanwhile, α represents a number from 0.3 to 15.0).

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SECONDARY BATTERY CHARGING METHOD AND CHARGING SYSTEM

NºPublicación: WO2022163539A1 04/08/2022

Solicitante:

PANASONIC IP MAN CO LTD [JP]

Resumen de: WO2022163539A1

This method for charging a secondary battery provided with a positive electrode for storing lithium ions during discharging and releasing the lithium ions during charging, a negative electrode onto which lithium metal is deposited during charging and from which the lithium metal is dissolved during discharging, and a non-aqueous electrolyte having lithium ion conductivity, includes a process for charging the secondary battery in accordance with a first charging profile. In the secondary battery, a surface of the negative electrode is covered by a protective layer. In the first charging profile, charging begins from a first charging step in which charging is performed using a constant current having a first current density I1, and a second charging step in which charging is performed using a constant current having a second current density I2 greater than the first current density I1 is executed following the first charging step.

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LITHIUM SECONDARY BATTERY

NºPublicación: WO2022163538A1 04/08/2022

Solicitante:

PANASONIC IP MAN CO LTD [JP]

Resumen de: WO2022163538A1

This lithium secondary battery comprises: a positive electrode in which lithium ions are occluded during discharging and lithium ions are discharged during charging; a negative electrode in which lithium metal is deposited during charging and lithium metal is dissolved during discharging; and a non-aqueous electrolyte having lithium ion conductivity. The surface of the negative electrode is covered with a protective layer. The protective layer contains a block polymer in which a first polymer portion having a repeating structure of a monomer unit A and a second polymer portion having a repeating structure of a monomer unit B are bonded.

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NONAQUEOUS SECONDARY BATTERY

NºPublicación: WO2022163767A1 04/08/2022

Solicitante:

ZEON CORP [JP]

Resumen de: WO2022163767A1

A nonaqueous secondary battery according to the present invention is provided with a positive electrode, a negative electrode, an electrolyte solution and a separator. The positive electrode is provided with a current collector and a positive electrode mix layer formed on the current collector. The positive electrode mix layer comprises a positive electrode active material, an electroconductive material, and a polymer A. The polymer A contains a nitrile-group-containing monomer unit and at least one of a conjugated diene monomer unit and an alkylene structure unit. The content of the polymer A in the positive electrode mix layer is 0.01 to 8% by mass inclusive. The separator is provided with a separator base and an adhesive layer formed on the separator base. The adhesive layer contains a polymer B, in which the rate of coating of the adhesive layer with the polymer B is 3 to 70% inclusive.

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NONAQUEOUS SECONDARY BATTERY

NºPublicación: WO2022163769A1 04/08/2022

Solicitante:

ZEON CORP [JP]

Resumen de: WO2022163769A1

A nonaqueous secondary battery according to the present invention is provided with a positive electrode, a negative electrode, an electrolyte solution, and a separator. The positive electrode is provided with a current collector and a positive electrode mixture layer formed on the current collector. The positive electrode mixture layer includes a positive electrode active material, a conductive agent, and a polymer A. The polymer A contains a nitrile group-containing monomer unit and at least one among a conjugated diene monomer unit and an alkylene structural unit. The content of the polymer A in the positive electrode mixture layer is 0.01-8 mass%. The separator is provided with a separator substrate and a porous film formed on the separator substrate. The porous film contains non-conductive particles and a polymer B.

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METHOD OF MANUFACTURING A SOLID ELECTROLYTE FOR AN ALL-SOLID-STATE BATTERY THROUGH LIQUID STIRRING

NºPublicación: US2022246981A1 04/08/2022

Solicitante:

HYUNDAI MOTOR CO LTD [KR]
KIA CORP [KR]

CN_114853035_PA

Resumen de: US2022246981A1

A method of manufacturing a solid electrolyte for an all-solid-state battery is provided by allowing a starting material to react through liquid stirring without pulverization.

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SECONDARY BATTERY

NºPublicación: US2022247047A1 04/08/2022

Solicitante:

ENVISION AESC JAPAN LTD [JP]

US_2020006743_A1

Resumen de: US2022247047A1

A secondary battery has a battery body and a restraint. The battery body has a plurality of stacked power generation elements. The restraint restrains the battery body. The restraint has a first contact section (for applying a restraining force to an outermost layer surface (e.g., a negative electrode collector) of the battery body. The restraint is configured so that a stress occurring at a boundary of a non-contact region and a contact region of the first contact section is less than a breaking strength of the negative electrode collector, and the stress is based on the restraining force and on expansion and contraction of a negative electrode due to a change in volume of a negative electrode active material layer caused by charging and discharging.

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CELL UNIT, ENERGY STORAGE MODULE AND METHOD FOR THE ASSEMBLY THEREOF

NºPublicación: US2022247042A1 04/08/2022

Solicitante:

CLARIOS ADVANCED SOLUTIONS GMBH [DE]

US_2021167472_A1

Resumen de: US2022247042A1

The invention relates to an electrochemical cell unit for storing electrical energy, in which the electrochemical cell unit includes at least two lithium-ion pouch cells, a planar element for orienting the at least two lithium-ion pouch cells, and a cell carrier. The at least two lithium-ion pouch cells are provided in the cell carrier and are in electrical contact. The at least two lithium-ion pouch cells also have a first and a second terminal lug. The planar element is provided, preferably centrally, in the cell carrier and in addition, is sandwiched between the at least two lithium-ion pouch cells, at least some portions of the planar element being in contact with the pouch cells.

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LIGHTWEIGHT NONWOVEN FIBER MATS

NºPublicación: US2022247036A1 04/08/2022

Solicitante:

UNIFRAX I LLC [US]

CN_114287081_PA

Resumen de: US2022247036A1

Nonwoven fiber mats include primarily B-glass fibers, and have a thickness of about 10 to about 700 microns and a basis weight of about 1 to 70 g/m2. The mats are generally thermally stable at temperatures of up to 650° C., and are suitable for use as battery separators.

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BATTERY COMPONENTS COMPRISING FIBERS

NºPublicación: US2022247037A1 04/08/2022

Solicitante:

HOLLINGSWORTH & VOSE CO [US]

CN_110100323_A

Resumen de: US2022247037A1

Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.

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LITHIUM METAL ANODE AND METHOD FOR MAKING THE SAME

NºPublicación: US2022246909A1 04/08/2022

Solicitante:

UNIV TSINGHUA [CN]
HON HAI PREC IND CO LTD [TW]

CN_114824184_PA

Resumen de: US2022246909A1

A method of making a lithium metal anode, comprises: S1, preparing a carbon nanotube material; S2, adding the carbon nanotube material to an organic solvent, and ultrasonically agitating the organic solvent with the carbon nanotube material to form a flocculent structure; S3, rinsing the flocculent structure with water; S4, freeze-drying the flocculent structure in vacuum environment to obtain a carbon nanotube sponge preform; S5, depositing a carbon layer on the carbon nanotube sponge preform to form a carbon nanotube sponge: and S6, injecting molten lithium into the carbon nanotube sponge in an oxygen-free environment, and cooling the molten lithium and the carbon nanotube sponge to form a lithium metal anode.

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PROCESS FOR MAKING AN AT LEAST PARTIALLY COATED ELECTRODE ACTIVE MATERIAL

NºPublicación: US2022246900A1 04/08/2022

Solicitante:

BASF SE [DE]

Resumen de: US2022246900A1

Process for making an at least partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula Li1+xTM1−xO2, wherein TM is a combination of Ni and Co or Ni and Al and, optionally, Mn, and, optionally, at least one metal selected from Ga, Nb, Ta, Mg, Mo, B, Sn, V, W, Ti and Zr, and x is in the range of from zero to 0.2, (b) treating said electrode active material with at least one carbonyl compound of Co, and (c) treating the material obtained in step (b) with an oxidant.

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ELECTROCHEMICAL APPARATUS AND ELECTRONIC DEVICE

NºPublicación: WO2022160269A1 04/08/2022

Solicitante:

NINGDE AMPEREX TECHNOLOGY LTD [CN]

CN_114270622_PA

Resumen de: WO2022160269A1

The present application relates to an electrochemical apparatus and an electronic device. The electrochemical apparatus comprises: a housing; an electrode assembly, which is at least partially located in the housing; and an insulation tape, which is located between the housing and the electrode assembly. In addition, the insulation tape comprises a first surface bonded with the electrode assembly and a second surface bonded with the housing. The insulation tape satisfies at least one of the following conditions: a) the first surface comprises a first bonding region having a bonding strength of P1 and a second bonding region having a bonding strength of P2, 0.2×P1≤P2≤0.9×P1; and b) the second surface comprises a third bonding region having a bonding strength of P3 and a fourth bonding region having a bonding strength of P4, 0.2×P3≤P4≤0.9×P3. The described insulation tape can increase the service life and reliability of the electrochemical apparatus, and can reduce the risk of the insulation tape tearing the aluminum foil of the electrode assembly during dropping and prevent short-circuiting from occurring inside of the electrode assembly.

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ELECTROCHEMICAL DEVICE AND ELECTRONIC APPARATUS

NºPublicación: WO2022160273A1 04/08/2022

Solicitante:

NINGDE AMPEREX TECHNOLOGY LTD [CN]

CN_114270621_PA

Resumen de: WO2022160273A1

The present application relates to an electrochemical device and an electronic apparatus, the electrochemical device comprising: a housing, an electrode assembly and an insulating tape, wherein the electrode assembly is at least partially located within the housing; the insulating tape is located between the housing and the electrode assembly, and the insulating tape comprises a first surface, which is bonded to the electrode assembly, and a second surface, which is bonded to the housing; and the area of the first surface is larger than that of the second surface, the bonding strength of the second surface is P2, and the first surface comprises a first region with the bonding strength of P1, wherein P1 < P2. Since the area of the first surface is larger than that of the second surface, the intensity of pressure on the first surface and the electrode assembly is reduced, and on the premise of ensuring the reliability of the connection between the insulating tape and the housing, the volume and weight of the insulating tape is relatively small and the energy density of the electrochemical device is increased. When P1 < P2, the risk of tearing of an aluminum foil of the electrode assembly by the insulating tape in a dropping process is reduced, a short circuit inside the electrode assembly is prevented, and the service life and reliability of the electrochemical device are increased.

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LAMINATED POROUS MEMBRANE, SECONDARY BATTERY, AND ELECTRONIC DEVICE

NºPublicación: WO2022160162A1 04/08/2022

Solicitante:

NINGDE AMPEREX TECHNOLOGY LTD [CN]

Resumen de: WO2022160162A1

A laminated porous membrane (1), a secondary battery and an electronic device. The laminated porous membrane (1) comprises a base membrane (11) and a polymer coating (12) provided on at least one side of the base membrane (11), wherein the base membrane (11) and the polymer coating (12) satisfy both formula I and formula II: formula I, i.e. 0≤(Tm1-Tm2)/M1≤0.0005, and formula II, i.e. 0≤(Tm1-Tm2/M2≤0.05, where Tm1) is the melting point of the base membrane (11), M1 is the weight average molecular weight of the polymer contained in base membrane (11), Tm2 is the melting point of the polymer coating (12), and M2is the weight average molecular weight of the polymer contained in the polymer coating (12). The laminated porous membrane (1) has the advantages of low pore-closing temperature and high inflection point resistance.

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PRESSURE ACTIVATION DEVICE PROVIDED WITH SHORT-CIRCUITING INSPECTION PART FOR BATTERY CELL

NºPublicación: WO2022164033A1 04/08/2022

Solicitante:

APRO CO LTD [KR]

Resumen de: WO2022164033A1

The present invention relates to a pressure activation device and, particularly, to a pressure activation device provided with a short-circuiting inspection part for a battery cell, which is configured to sequentially and continuously perform a short-circuiting inspection, an activation process, and a charging/discharging process for multiple battery cells in one pressure activation device. Therefore, according to the present invention, there is no need to build separate short-circuiting inspection equipment, and thus it is possible to reduce the maintenance, effort, and cost for performing a short-circuiting inspection process, a pressure activation process, and a charging/discharging process for a battery cell, and reduce unnecessary requirements such as space, time, and cost to build separate equipment.

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METHOD FOR MANUFACTURING ELECTRODE ASSEMBLY, ELECTRODE ASSEMBLY MANUFACTURED THERETHROUGH, AND SECONDARY BATTERY

NºPublicación: US2022246974A1 04/08/2022

Solicitante:

LG ENERGY SOLUTION LTD [KR]

CN_113692670_A

Resumen de: US2022246974A1

The present invention relates to a method for manufacturing an electrode assembly, an electrode manufactured therethrough, and a secondary battery. The method for manufacturing the electrode assembly according to the present invention comprises: a stacking process of stacking a plurality of unit cells, each of which comprises an electrode and a separator, and a separator sheet, wherein the separator sheet is folded in a zigzag shape to locate the unit cells between the folded separator sheets, thereby forming an electrode assembly in the separator sheet is stacked in the zigzag shape; and a lamination process of heating and pressing both surfaces of the electrode assembly through a pair of heating presses to bond the plurality of unit cells and the separator sheet to each other, wherein, in the lamination process, each of the pair of heating presses are formed in a rounded shape to form the electrode assembly in a rounded shape when pressing the electrode assembly.

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ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND MANUFACTURING DEVICE AND METHOD FOR ELECTRODE ASSEMBLY

NºPublicación: US2022246973A1 04/08/2022

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]

Resumen de: US2022246973A1

The present application provides an electrode assembly, including a negative electrode plate and a positive electrode plate, the negative electrode plate and the positive electrode plate being wound in a winding direction to form a winding structure including a bending area. Both the negative and the positive electrode plates include a plurality of bending portions located in the bending area. At least one bending portion in the negative electrode plate is a first bending portion, and an active substance capacity per unit area outside the first bending portion is greater than an active substance capacity per unit area inside the first bending portion; and/or, at least one bending portion in the positive electrode plate is a second bending portion, and an active substance capacity per unit area outside the second bending portion is greater than an active substance capacity per unit area inside the second bending portion.

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SAFE AND NON-FLAMMABLE SODIUM METAL BATTERIES BASED ON CHLOROALUMINATE ELECTROLYTES WITH ADDITIVES

NºPublicación: US2022246995A1 04/08/2022

Solicitante:

UNIV LELAND STANFORD JUNIOR [US]

WO_2021003411_A1

Resumen de: US2022246995A1

Provided herein are rechargeable alkali metal batteries comprising: an anode including an alkali metal; a cathode; and an electrolyte to support reversible plating and stripping of the alkali metal at the anode, wherein the electrolyte includes alkali metal ions, chloroaluminate anions (AlClri), and an additive including imide anions.

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ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND MANUFACTURING DEVICE AND METHOD FOR ELECTRODE ASSEMBLY

NºPublicación: US2022246992A1 04/08/2022

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]

Resumen de: US2022246992A1

An embodiment of the present application provide an electrode assembly, a battery cell, a battery, and an electrode assembly manufacturing equipment and method. Among that, the electrode assembly includes a negative electrode plate and a positive electrode plate which form a bending region. The positive electrode plate includes bending portions located in the bending region, the bending portion includes a positive electrode current collecting layer and a positive active substance layer, and at least one side surface of the positive electrode current collecting layer is provided with the positive active substance layer in a thickness direction of the positive electrode plate. At least one positive active substance layer is provided with the barrier layer, at least a part of the barrier layer is intercalated in the positive active substance layer provided with the barrier layer, and coats at least a part of particles in the positive active substance layer.

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Non-Aqueous Electrolyte Solution And Lithium Secondary Battery Including The Same

NºPublicación: US2022246976A1 04/08/2022

Solicitante:

LG ENERGY SOLUTION LTD [KR]

KR_20210027832_PA

Resumen de: US2022246976A1

A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes an organic solvent, a lithium salt, and an oligomer represented by Formula 1 as a surfactant, wherein the organic solvent contains containing cyclic carbonate, dimethyl carbonate, and alkyl formate.

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ELECTRIC ENERGY STORAGE DEVICE & METHOD

NºPublicación: US2022246906A1 04/08/2022

Solicitante:

INST ENERGITEKNIK [NO]

WO_2020260332_A1

Resumen de: US2022246906A1

Electrical energy storage device (22) comprising an anode (24), a cathode (26) and electrolyte (28), whereby the anode (24) comprises particles (10, 20, 30, 40) comprising an amorphous and/or crystalline silicon-based core (12), a continuous or non-continuous first carbon-containing shell (14, 14a), and a continuous or non-continuous second carbon-containing shell (16, 16a). The second carbon-containing shell (16, 16a) has a higher density and/or a higher atomic percentage of carbon than the first carbon-containing shell (14, 16a).

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ANODE ACTIVE MATERAL LAYER

NºPublicación: US2022246913A1 04/08/2022

Solicitante:

TOYOTA MOTOR CO LTD [JP]

CN_114864921_PA

Resumen de: US2022246913A1

A main object of the present disclosure is to provide an anode active material layer with low resistance. The present disclosure achieves the object by providing an anode active material layer to be used in an all solid state battery, the anode active material layer comprises: a first anode active material and a second anode active material; wherein the first anode active material is a lithium titanate; in the second anode active material, when a discharge capacity at a potential of 1.0 V vs Li+/Li or more and 2.0 V vs Li+/Li or less signifies 100% discharge capacity, and when P1 designates an average potential in a capacity of 0% or more and 50% or less of the 100% discharge capacity, and P2 designates an average potential in a capacity of 50% or more and 100% or less of the 100% discharge capacity, a difference between the P2 and the P1 is 0.1 V or more; and a proportion of the first anode active material with respect to a total of the first anode active material and the second anode active material is 40 volume % or more.

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SILICON PARTICLES FOR BATTERY ELECTRODES

NºPublicación: US2022246907A1 04/08/2022

Solicitante:

ENEVATE CORP [US]

US_2020313167_A1

Resumen de: US2022246907A1

Silicon particles for use in an electrode in an electrochemical cell are provided. The silicon particles may have outer regions extending about 20 nm deep from the surfaces, the outer regions comprising an amount of aluminum such that a bulk measurement of the aluminum comprises at least about 0.01% by weight of the silicon particles. The bulk measurement of the aluminum may provide the amount of aluminum present at least in the outer regions.

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ALL SOLID STATE BATTERY

Nº publicación: US2022246912A1 04/08/2022

Solicitante:

TOYOTA MOTOR CO LTD [JP]

CN_114864885_PA

Resumen de: US2022246912A1

A main object of the present disclosure is to provide an all solid state battery with low resistance. The present disclosure achieves the object by providing an all solid state battery comprising a cathode active material layer, an anode active material layer, and a solid electrolyte layer arranged between the cathode active material layer and the anode active material layer; wherein the anode active material layer includes: a first anode active material and a second anode active material; the first anode active material is a lithium titanate; in the second anode active material, when a discharge capacity at a potential of 1.0 V vs Li+/Li or more and 2.0 V vs Li+/Li or less signifies 100% discharge capacity, and when P1 designates an average potential in a capacity of 0% or more and 50% or less of the 100% discharge capacity, and P2 designates an average potential in a capacity of 50% or more and 100% or less of the 100% discharge capacity, a difference between the P2 and the P1 is 0.1 V or more; and when T designates a thickness of the anode active material layer, X designates a region of the anode active material layer that is from an edge of the solid electrolyte layer side to T/2 in a thickness direction, Y designates a region of the anode active material layer that is from the T/2 to an opposite edge from the solid electrolyte layer side in the thickness direction, X1 designates a volume ratio of the first anode active material with respect to a total of the first anode

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