BATTERY POWER STORAGE

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



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Cathode For Solid-State Electrochemical Cell Having Elemental Dopant In Grain Boundaries

Publication No.: US2021234170A1 29/07/2021

Applicant:

APPLE INC [US]

Absstract of: US2021234170A1

A solid-state cathode for a solid-state electrochemical cell includes an electrochemically active cathode material and one or more elemental dopant residing in grain boundaries of the electrochemically active cathode material. The grain boundaries contain at least 0.2 wt % of the one or more elemental dopant and the one or more elemental dopant is less than 10 wt % of the solid-state cathode. The solid-state cathode does not have liquid, gel and polymer materials.

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SECONDARY BATTERY AND ELECTRODE PLATE THEREOF

Publication No.: US2021234188A1 29/07/2021

Applicant:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]

US_2020119388_A1

Absstract of: US2021234188A1

The present disclosure provides a secondary battery and an electrode plate thereof. The electrode plate comprises a current collector, an active material layer and a second conducting layer. The current collector comprises an insulating layer and a first conducting layer disposed on at least one surface of the insulating layer; and the active material layer is disposed on a main portion of the first conducting layer. The first conducting layer further includes a protruding portion not coated with the active material layer. The second conducting layer comprises a first portion disposed on a surface of the protruding portion of the first conducting layer opposite to the insulating layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode plate.

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ELECTROLYTES FOR THIN LAYER ELECTROCHEMICAL DEVICES

Publication No.: US2021234189A1 29/07/2021

Applicant:

I TEN [FR]

CN_112074921_A

Absstract of: US2021234189A1

Thin-layer electrolyte in an electrochemical device such as a lithium-ion battery, said electrolyte comprising a porous inorganic layer impregnated with a phase carrying lithium ions,characterized in that said porous inorganic layer has an interconnected network of open pores.

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Method of Washing Positive Electrode Active Material, and Positive Electrode Active Material Prepared Thereby

Publication No.: US2021234164A1 29/07/2021

Applicant:

LG CHEMICAL LTD [KR]

Absstract of: US2021234164A1

A method of washing a positive electrode active material includes (1) preparing a lithium composite transition metal oxide which contains Ni, Co and Mn, and has the Ni content of 60 mol % or more; (2) putting the lithium composite transition metal oxide into water; and (3) adding a weak acid to water to which the lithium composite transition metal oxide is added to adjust the pH to 7 to 10, wherein the acid is a weak acid.

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SULFUR-CARBON COMPOSITE, METHOD FOR PREPARING THE SAME, AND POSITIVE ELECTRODE FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY COMPRISING THE SAME

Publication No.: US2021234159A1 29/07/2021

Applicant:

LG CHEMICAL LTD [KR]

CN_112204770_A

Absstract of: US2021234159A1

A composite including a sulfur-carbon composite and a coating layer on a surface of the sulfur-carbon composite, the coating layer including a porous carbon material and a point contact binder is disclosed. Also disclosed is a method for preparing the same, and a positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.

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SILICON-CARBON COMPOSITE MATERIAL AND PREPARATION METHOD AND USE THEREOF

Publication No.: US2021234157A1 29/07/2021

Applicant:

CHINA ENERGY INVESTMENT CORP LTD [CN]
NAT INST CLEAN & LOW CARBON ENERGY [CN]

WO_2019218503_PA

Absstract of: US2021234157A1

The present disclosure relates to the field of carbonaceous composite materials, in particular to a silicon-carbon composite material and a preparation method and a use thereof. The silicon-carbon composite material comprises a composite carbon material and nanometer silicon dispersed therein, wherein the composite carbon material is consisting of a graphitic crystal phase and an amorphous carbon phase, wherein the ratio I002/Iamor of the peak intensity I002 of the graphite crystal phase (002) plane relative to the peak intensity Iamor of the amorphous carbon phase as measured by the X-Ray Diffraction (XRD) is within a range of 0.1-40, the graphite crystalline phase is uniformly dispersed in the composite material, the dispersion coefficient δ of the ratio Id/Ig of Id and Ig as measured by Raman data is less than 0.8. The silicon-carbon composite material provided by the present disclosure can be used as an anode material of a lithium ion battery, such that the lithium ion battery has desirable first charge and discharge performance and cycle stability, and the service life of the lithium ion battery can be prolonged.

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CURRENT COLLECTING MEMBER, SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Publication No.: US2021234175A1 29/07/2021

Applicant:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]

EP_3852165_A1

Absstract of: US2021234175A1

This application provides a current collecting member, a secondary battery, and a method for manufacturing a secondary battery. The current collecting member includes a substrate and a support plate, the substrate is disposed on a side of a body of the electrode assembly in the transverse direction and extends in a direction perpendicular to the transverse direction, the support plate extends from an outer end of the substrate in the longitudinal direction and folds back to a side of the substrate farther from the body. The support plate includes a bending portion and a connecting portion, the bending portion is connected to the substrate and bent into an arc shape, and the connecting portion extends from an end of the bending portion farther from the substrate; and a first tab of the electrode assembly is connected to the connecting portion and bent along a surface of the bending portion.

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Positive Electrode for Secondary Battery, Method of Preparing the Same, and Lithium Secondary Battery Including the Same

Publication No.: US2021234160A1 29/07/2021

Applicant:

LG CHEMICAL LTD [KR]
ULSAN NAT INST SCIENCE & TECH UNIST [KR]

CN_112042021_A

Absstract of: US2021234160A1

The present disclosure provides a positive electrode for a secondary battery which includes a positive electrode active material and a lithium-based alloy. Also, the present disclosure provides a method of preparing the positive electrode for a secondary battery which includes the steps of forming a positive electrode material mixture layer including a positive electrode active material and forming a coating layer including a lithium-based alloy on the positive electrode material mixture layer, or forming a positive electrode material mixture layer by coating a positive electrode collector with a slurry for forming a positive electrode, which includes a positive electrode active material and a lithium-based alloy, and rolling the positive electrode collector.

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NICKEL ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING NICKEL ACTIVE MATERIAL PRECURSOR, NICKEL ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY PRODUCED BY METHOD, AND LITHIUM SECONDARY BATTERY HAVING CATHODE CONTAINING NICKEL ACTIVE MATERIAL

Publication No.: US2021234165A1 29/07/2021

Applicant:

SAMSUNG SDI CO LTD [KR]

JP_2020513658_A

Absstract of: US2021234165A1

Provided are a nickel-based active material precursor for a lithium secondary battery including a core, an intermediate layer located on the core, and a shell located on the intermediate layer, wherein porosity gradually decreases in the order of the core, the intermediate layer, and the shell, and each of the intermediate layer and the shell has a radial arrangement structure, a method for producing the nickel-based active material precursor, a nickel-based active material produced therefrom, and a lithium secondary battery including a cathode containing the nickel-based active material.

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APPARATUS AND METHOD FOR MANUFACTURING UNIT CELL

Publication No.: US2021234186A1 29/07/2021

Applicant:

LG CHEMICAL LTD [KR]

CN_112219305_A

Absstract of: US2021234186A1

Discussed is an apparatus for manufacturing a unit cell of a battery, the apparatus including: a center electrode reel from which a center electrode is unwound; an upper separator reel from which an upper separator laminated on a top surface of the center electrode is unwound; a lower separator reel from which a lower separator laminated on a bottom surface of the center electrode is unwound; and a magnetic force generation part disposed above or below a first laminate to apply magnetic force to the first laminate, the first laminate including the lower separator, the center electrode, and the upper separator that are sequentially laminated.

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NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Publication No.: US2021234156A1 29/07/2021

Applicant:

HONDA MOTOR CO LTD [JP]

JP_WO2019216018_A1

Absstract of: US2021234156A1

Provided is a non-aqueous electrolyte secondary battery capable of reliably operating an electricity shut-off mechanism at overcharging without deteriorating battery performance. The non-aqueous electrolyte secondary battery (1) includes, in a container (2): a positive electrode (41); in-container positive electrode terminals (21) and (23); a negative electrode (42); in-container negative electrode terminals (22) and (24); a non-aqueous electrolyte solution; and an electricity shut-off mechanism (68b) capable of shutting off energization with the outside of the container when the internal pressure of the container rises. A solid electrolyte layer that produces gas allowing the electricity shut-off mechanism (68b) to be operated is included in at least one member of a positive electrode mixture layer unformed portion (41b), a negative electrode mixture layer unformed portion (42b), the in-container positive electrode terminals (21) and (23), and the in-container negative electrode terminals (22) and (24).

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ACTIVE MATERIAL, AND POSITIVE ELECTRODE MIXTURE AND SOLID-STATE BATTERY THAT USE SAID ACTIVE MATERIAL

Publication No.: US2021234158A1 29/07/2021

Applicant:

MITSUI MINING & SMELTING CO [JP]

KR_20210060371_A

Absstract of: US2021234158A1

Disclosed is an active material that can reduce an interface resistance with a sulfide solid electrolyte and improve the battery performance. The active material exhibits at least one peak in the range of from 0.145 nm to 0.185 nm and at least one peak in the range of from 0.28 nm to 0.31 nm in a radial distribution function obtained through measurement of an X-ray absorption fine structure of the active material. The active material is for use in a solid-state battery. The active material preferably has a core particle, and a coating layer located on the surface of the core particle.

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BATTERY CELL STORAGE CASE AND STORAGE DEVICE INCLUDING SAME

Publication No.: US2021234224A1 29/07/2021

Applicant:

LG CHEMICAL LTD [KR]

CN_112400251_A

Absstract of: US2021234224A1

A battery cell storage case according to the present invention may comprise: a case in which battery cells are stored; and a discharge unit which is electrically connected to the case, is disposed outside the case, and discharges the battery cells, wherein the case comprises: an upper case which has a hollow structure and is open on one side thereof; and a lower case which has a hollow structure and is open on the side facing the open portion of the upper case.

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ADHESIVE FILM FOR METAL TERMINAL, METAL TERMINAL WITH ADHESIVE FILM, AND BATTERY

Publication No.: US2021234222A1 29/07/2021

Applicant:

DAINIPPON PRINTING CO LTD [JP]

KR_20210021949_A

Absstract of: US2021234222A1

This adhesive film for a metal terminal is interposed between a metal terminal electrically connected to an electrode of a battery element and a wrapping material sealing the battery element and is provided with at least one resin layer having a polyolefin backbone. When the adhesive film for the metal terminal is measured with a differential scanning calorimeter, a melting peak is observed within the range of 120° C. to 156° C.

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BATTERY MODULE

Publication No.: US2021234223A1 29/07/2021

Applicant:

HONDA MOTOR CO LTD [JP]

CN_113178656_A

Absstract of: US2021234223A1

Provided is a battery module including a plurality of battery cells stacked on one another and being capable of effectively preventing damage to the battery cells despite such a configuration. A battery module 1 includes a plurality of battery cells 10 stacked on one another and a battery cell support 2. The battery cells 10 each include a battery 11 and an exterior casing 12 accommodating the battery 11. The battery cell support 2 is disposed between the plurality of battery cells 10. The battery module preferably further includes a fixation film 6 wound around the plurality of battery cells in a stacking direction and fixing the plurality of battery cells.

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Top Cover Assembly of Secondary Battery and Secondary Battery

Publication No.: US2021234219A1 29/07/2021

Applicant:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]

EP_3790072_A1

Absstract of: US2021234219A1

The present disclosure relates to a top cover assembly of a secondary battery and a secondary battery, wherein the top cover assembly includes a top cover plate, provided with a through hole; an electrode terminal, covering the through hole; an insulating plate, wherein at least part of the insulating plate is arranged on a side of the top cover plate away from the electrode terminal; a seal, wherein at least part of the seal is arranged between the top cover plate and the electrode terminal; and an insulator, wherein at least part of the insulator is arranged between the top cover plate and the insulating plate; wherein the insulator and the seal at least jointly enclose a side wall of the through hole and an area, close to the through hole, on an upper surface of the top cover plate.

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RECHARGEABLE BATTERY

Publication No.: US2021234212A1 29/07/2021

Applicant:

AUDI AG [DE]
MIBA EMOBILITY GMBH [AT]

CN_112262495_A

Absstract of: US2021234212A1

The invention relates to a rechargeable battery (1) comprising at least one storage module for electrical energy and at least one cooling device (2) for cooling or controlling the temperature of the at least one storage module, wherein the cooling device (2) has a single-layer or multi-layer film (4, 9) and is lying with this film (4, 9) against the at least one storage module. The cooling device is provided with at least one stiffening element (19).

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VEHICLE BATTERY PACK

Publication No.: US2021234213A1 29/07/2021

Applicant:

TOYOTA MOTOR CO LTD [JP]

CN_113178637_A

Absstract of: US2021234213A1

A vehicle battery pack includes: a battery; a radiator; a passage via which the battery is connected to the radiator; a pump configured to circulate coolant between the battery and the radiator through the passage; and a case in which the battery, the radiator, the passage, and the pump are accommodated, the case having an intake opening and a discharge opening for external air.

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Method and System for Analyzing Swelling Behavior of Lithium Secondary Battery

Publication No.: US2021234207A1 29/07/2021

Applicant:

LG CHEMICAL LTD [KR]

Absstract of: US2021234207A1

A method for analyzing a swelling behavior of a lithium secondary battery includes: (S1) installing a detachable pressurizing holder for fixing a battery sample and a charge/discharge cable connected with an external charging/discharging device to an X-ray CT (computed tomography) imaging equipment; (S2) inserting the battery sample into the pressurizing holder, contacting an electrode lead of the battery sample with a terminal of the charge/discharge cable, and then operating the external charging/discharging device to perform charging and discharging; and (S3) while rotating the battery sample during charging and discharging of the battery sample, irradiating and scanning the X-ray on the battery sample at an angle ranging from −10° to 10° to obtain a 3D image, and then measuring a change in the thickness of the electrode inside the battery sample from the 3D image.

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TWO-LEVEL METHOD FOR THERMAL RUNAWAY DETECTION

Publication No.: US2021234209A1 29/07/2021

Applicant:

GM GLOBAL TECH OPERATIONS LLC [US]

CN_113173102_A

Absstract of: US2021234209A1

A battery system includes a rechargeable energy storage system (RESS) having battery cells, and a battery controller network configured to execute two-level logic to detect a thermal runaway condition. The network includes RES S-embedded cell monitoring units (CMUs) electrically connected to a respective cell group, and measuring and wirelessly transmitting cell data. A battery control module (BCM) is in communication with the CMUs. Thermal runaway sensors are mounted on the CMUs and/or the BCM. A master controller connected to the BCM includes a thermal runaway detection algorithm configured to detect a thermal runaway condition occurring within the RESS. The BCM uses data from the CMUs and thermal runaway sensors to execute first logic level which determines when to wake up the master controller. The master controller, in response to receipt of a wakeup signal, executes a second logic level to execute the algorithm.

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DIAGNOSTIC APPARATUS FOR SECONDARY BATTERY AND SOC UNEVENNESS DETECTION METHOD

Publication No.: US2021234206A1 29/07/2021

Applicant:

TOYOTA MOTOR CO LTD [JP]

CN_113178625_A

Absstract of: US2021234206A1

A diagnostic apparatus for a secondary battery includes a control device. The control device acquires an electricity storage amount that is the amount of electricity stored in the secondary battery, and V/K indicating the magnitude of change in OCV of the secondary battery with respect to temperature change of the secondary battery. The control device determines whether or not an SOC unevenness occurs in an electrode surface of the secondary battery by using the acquired electricity storage amount and V/K.

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TEMPERATURE SENSOR THERMAL CONTACT TESTING METHOD AND CIRCUIT

Publication No.: US2021234208A1 29/07/2021

Applicant:

SAMSUNG SDI CO LTD [KR]

CN_111357146_A

Absstract of: US2021234208A1

The present invention relates to a testing method for the thermal contact between a temperature sensor (50) and a battery cell (10) of a battery module (30), wherein the method comprises the steps of measuring a temperature T1 of the temperature sensor (50) at a time point t1, heating the temperature sensor (50) for a defined time (t2-t1), measuring a temperature T2 of the temperature sensor (50) at a time point t2 and/or a temperature T3 of the temperature sensor (50) at a time point t3, and determining the thermal contact between the temperature sensor (50) and the battery cell (10) based on at least one of the temperature differences ΔT2,1=(T2-T1), ΔT3,1=(T3-T1) and/or ΔT3,2=(T3-T2). The invention further relates to a testing circuit (60) for a temperature sensor (50) of a battery module (30), comprising a thermistor (61) with a first node (67) connected to a first supply voltage (65) and a second node (68) connected to ground (69), a switch (63) interconnected between the first node (67) of the thermistor (61) and a second supply voltage (66), and an analog-to-digital converter (64) connected in parallel to the thermistor (61). The invention further relates to a cell supervision circuit (40) for a battery module (30), comprising a circuit carrier (45), a testing circuit (60) according to any one of the claims 1 to 10, and a temperature sensor (50) surface mounted to the circuit carrier (45) and comprising a measuring head (51) with

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VEHICULAR BATTERY CHARGER, CHARGING SYSTEM, AND METHOD

Publication No.: US2021234205A1 29/07/2021

Applicant:

AUSTIN CHRISTOPHER B [US]

US_2021184275_A1

Absstract of: US2021234205A1

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and/or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and/or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

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CONDUCTIVE MATERIAL DISPERSION LIQUID, ELECTRODE AND LITHIUM SECONDARY BATTERY PREPARED BY USING THE SAME

Publication No.: US2021234174A1 29/07/2021

Applicant:

LG CHEMICAL LTD [KR]

EP_3843182_PA

Absstract of: US2021234174A1

Provided are a conductive material dispersion liquid, and an electrode and a lithium secondary battery manufactured using the same. The conductive material dispersion liquid according to the present invention includes a carbon-based conductive material, a dispersant, and a dispersion medium, wherein the dispersant is a copolymer including a first repeating unit represented by Chemical Formula 1, a second repeating unit represented by Chemical Formula 2, and a third repeating unit represented by Chemical Formula 3, and the dispersion medium is a non-aqueous solvent.

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BATTERY PACK

Nº publicación: US2021234381A1 29/07/2021

Applicant:

MILWAUKEE ELECTRIC TOOL CORP [US]

EP_3855555_A2

Absstract of: US2021234381A1

A battery pack, a method of heating a battery cell and an electrical combination. The battery pack may include a housing; a battery cell; a heating element operable to provide heat to the battery cell; a temperature sensing device operable to sense a temperature of an interior of the battery pack; a heating switch operable to control whether power is provided to the heating element; and an electronic processor configured to receive a signal from the temperature sensing device, the signal indicating the temperature of the interior of the battery pack, determine that the temperature of the interior of the battery pack is less than a predetermined temperature threshold, and in response to determining that the temperature of the interior of the battery pack is less than the predetermined temperature threshold, close the heating switch to provide power to the heating element.

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