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BATTERY DIAGNOSTIC APPARATUS AND PROGRAM

Resumen de: US20260029487A1

A battery system includes an assembled battery including unit cells and a detection unit provided in at least one unit cell. A battery diagnostic apparatus calculates a state-of-health based on a parameter for degradation diagnosis detected by the detection unit for at least one unit cell, and calculates a change amount of a state-of-charge caused by energization, for the unit cells. When a unit cell of which the state-of-health is calculated is a first unit cell and a unit cell of which the state-of-health is not calculated is a second unit cell, the battery diagnostic apparatus calculates, as the state-of-health of the second unit cell, a value obtained by multiplying a change amount ratio that is a ratio of the change amount of the state-of-charge of the first unit cell to the change amount of the state-of-charge of the second unit cell by the state-of-health of the first unit cell.

APPARATUS AND METHOD FOR ESTIMATING LIFE OF BATTERY

Resumen de: US20260029486A1

A method for estimating a life of a battery includes measuring capacities of the battery based on a plurality of different temperatures and a plurality of different currents, selecting a reference capacity of the battery based on a reference temperature and a reference current, applying the reference capacity to derive compensation values with respect to the plurality of different temperatures and the plurality of different currents, identifying a start extant capacity of the battery at start of use of the battery, integrating the currents of the battery in a use time of the battery, and correcting the integration current to at least one of the compensation values, identifying an end extant capacity of the battery at end of use of the battery, and obtaining the life of the battery based on the start extant capacity of the battery, the end extant capacity of the battery, and the corrected integration current.

ESTIMATION DEVICE, DIAGNOSTIC DEVICE, ESTIMATION METHOD, ESTIMATION PROGRAM, AND DIAGNOSTIC METHOD

Resumen de: US20260029477A1

An estimation device includes: an acquisition portion acquiring time-series data of a current and a voltage of an energy storage device; a calculation portion calculating time-series data of an amount of electricity or an SOC, based on the time-series data of the current and the voltage acquired by the acquisition portion; a generation portion generating a partial charge/discharge profile of the energy storage device, based on the time-series data of the current and the voltage acquired by the acquisition portion and the time-series data of the amount of electricity or the SOC calculated by the calculation portion; and an estimation portion estimating an overall discharge characteristic of the energy storage device, based on a parameter representing an internal state amount of the energy storage device, the parameter being adjusted in such a way that a profile of a predetermined section in the overall discharge characteristic of the energy storage device approaches the partial charge/discharge profile.

BATTERY ASSEMBLY

Resumen de: AU2024377253A1

A battery assembly is disclosed. A battery assembly, according to one embodiment of the present invention, may comprise: a base plate; a first side wall which is coupled to an upper surface of the base plate and extends in a longitudinal direction; a second side wall which is coupled to the upper surface of the base plate, extends in the longitudinal direction and is spaced apart from the first side wall; a plurality of battery cells which are positioned between the first side wall and the second side wall and are stacked in a lateral direction; and a top cover which has one side coupled to the first side wall and the other side coupled to the second side wall.

BATTERY FAILURE DETERMINATION METHOD, DETERMINATION DEVICE, AND COMPUTER PROGRAM

Resumen de: AU2024325332A1

This battery failure determination method includes the processes of: storing a determination flow that corresponds to a type of a lead storage battery and/or a type of a vehicle or an apparatus on which the lead storage battery is mounted; receiving the type of the lead storage battery and/or the type of the vehicle or the apparatus on which the lead storage battery is mounted; determining a determination flow on the basis of the type of the received lead storage battery and/or the type of the vehicle or the apparatus on which the lead storage battery is mounted; receiving input of an investigation result for the lead storage battery; determining a failure of the lead storage battery according to the inputted inspection result on the basis of the determined determination flow; and outputting a determination result.

COIN CELL BATTERIES WITH AVERSIVE-AGENT COATING

Resumen de: AU2024305634A1

Provided are aversive coatings and electrochemical cells with at least a portion of the exterior surface coated in the aversive coating to deter children from eating the electrochemical cell. Described are compositions and methods for preparing electrochemical cells coated in aversive coatings with ratios of aversive taste agent to water-soluble polymer that adequately adhere the aversive coating to the electrochemical cell.

LITHIUM COIN CELL BATTERIES WITH POLYMER AND AVERSIVE-AGENT COATING LOCATED EXTERIOR TO THE CELL TO AVOID IMPACTING CONDUCTIVITY

Resumen de: AU2024303146A1

Provided are electrochemical cells with an aversive coating covering 2% to 50% of an area of an exterior surface of at least one terminal to deter children from eating the electrochemical cells. Described are compositions and methods for applying aversive coatings to specific locations of electrochemical cell terminals.

CONTAINER MODULE

Resumen de: AU2024408479A1

A container module according to one embodiment of the present invention may comprise: a case providing a space therein and including a side panel; a first side column positioned inside the case, extending in the vertical direction, and coupled to the side panel; a bracket positioned inside the case, coupled to the first side column, and extending in the front-rear direction; and a battery pack installed on the bracket.

COVER PLATE ASSEMBLY AND BATTERY

Resumen de: AU2024302851A1

Provided are a cover plate assembly (100) and a battery. The cover plate assembly (100) comprises a cover plate (110) and a monitoring assembly (120). The monitoring assembly (120) comprises an acquisition member (121), a connector (122), and a fixing member (123), wherein the acquisition member (121) is located in an accommodating cavity (210) and is used for obtaining parameter information in a housing (200); the fixing member (123) is mounted on the cover plate (110) and is provided with a second mounting hole (1231) in communication with a first mounting hole (111); one end of the connector (122) passes through the first mounting hole (111) and the second mounting hole (1231) and is electrically connected to the acquisition member (121); and the other end of the connector (122) is exposed to the second mounting hole (1231).

COMPOSITIONS AND METHODS FOR DRY ELECTRODE FILMS HAVING REDUCED BINDER CONTENT

Resumen de: US20260031317A1

Materials and methods for preparing dry cathode electrode film including reduced binder content are described. The cathode electrode film may be a self-supporting film including a single binder. The binder loading may be 3 weight % or less. In a first aspect, a method for preparing a dry free standing electrode film for an energy storage device is provided, comprising nondestructively mixing a cathode active material, a porous carbon, and optionally a conductive carbon to form an active material mixture, adding a single fibrillizable binder to the active material mixture, nondestructively mixing to form an electrode film mixture, and calendering the electrode film mixture to form a free standing electrode film.

BATTERY, BATTERY PREPARATION METHOD, BATTERY PACK AND ELECTRIC DEVICE

Resumen de: WO2026021190A1

Provided in the present application are a battery, a battery preparation method, a battery pack and an electric device. The battery comprises: a bare cell and a casing. The bare cell comprises a plurality of positive electrode sheets and a plurality of negative electrode sheets, each positive electrode sheet being provided with a positive tab, and each negative electrode sheet being provided with a negative tab. All the positive tabs are stacked in a first direction to form a first tab group, and all the negative tabs are stacked in the first direction to form a second tab group, the first direction being the direction of height of the bare cell. The casing comprises a first top cover and a second top cover. The first top cover is provided with a positive terminal post, and the second top cover is provided with a negative terminal post. The side of the positive terminal post that is close to the bare cell is provided with a first opening. The side of the negative terminal post that is close to the bare cell is provided with a second opening. The first tab group is fitted within the first opening and welded to the positive terminal post, and the positive terminal post is pressed against the first tab group. The second tab group is fitted within the second opening and welded to the negative terminal post, and the negative terminal post is pressed against the second tab group. The welding of tabs to top covers is avoided, improving the welding success rate of the tabs.

LITHIUM-ION BATTERY

Resumen de: WO2026021065A1

In order to overcome the problems of insufficient high-temperature cycle performance and high-temperature storage performance of existing silicon-containing negative electrodes, provided is a lithium-ion battery, comprising a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode comprises a positive electrode material layer which comprises a positive electrode active material. The negative electrode comprises a negative electrode material layer which comprises a negative electrode active material, the negative electrode active material comprising a silicon-carbon composite material formed by compositing a silicon-based material and a graphite material. The non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte salt and an additive, the non-aqueous organic solvent comprising fluoroethylene carbonate, and the additive comprising lithium difluorophosphate and ethylene sulfate. The lithium-ion battery satisfies the following conditions: 0.6≤100*(D/F+10*L)/C≤2.5, 5≤D≤16, 400≤C≤700, 3≤F≤20 and 0.2≤L≤1. The lithium-ion battery can maintain good high-temperature cycle performance and high-temperature storage performance while having an increased energy density.

BATTERY CELL CASING, BATTERY CELL, AND POWER DEVICE

Resumen de: WO2026021198A1

The present application relates to the technical field of battery cells, and discloses a battery cell casing, a battery cell, and a power device. The battery cell casing comprises a casing body. The casing body comprises a first connection edge and a second connection edge; the first connection edge and the second connection edge are connected by means of a weld seam; and a cavity used for accommodating an electrode assembly is defined inside. Along the width direction of the weld seam, the weld seam comprises a central zone and heat-affected zones located on two sides of the central zone. The tensile strength of the weld seam is K, with a unit of "MPa", and the tensile strength of the casing body is R, with a unit of "MPa", satisfying: 0.6≤K/R≤0.8. In a tensile test on a casing sample provided with a weld seam, the fracture position of the casing sample is not in the central zone. The present application can ensure that the weld seam has sufficient tensile strength, so that when the internal pressure of the battery cell rises, the battery cell casing would not crack in the central zone of the weld seam, thereby ensuring the safety performance of a battery and a vehicle.

ANODE FOR LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR

Resumen de: WO2026023955A1

The present invention relates to an anode for a lithium secondary battery and a manufacturing method therefor. The anode has a pattern structure in which a first region and a second region that have a predetermined deviation in L* of CIE LAB colorimeter are alternately disposed on a surface of an anode active layer, thereby having excellent adhesion between an anode current collector and the anode active layer. In addition, the anode has the advantages of not only improving a swelling phenomenon during charging, but also having excellent rapid charging performance.

POUCH-TYPE BATTERY CELL TRAY HAVING TEMPERATURE SENSING FUNCTION

Resumen de: WO2026023888A1

The present invention relates to a pouch-type battery cell tray having a temperature sensing function, the pouch-type battery cell tray comprising: an outer frame forming a first space to accommodate a plurality of pouch-type battery cells, the top surface and a portion of the side surface thereof being open; a seating unit which is disposed in the first space, accommodates the plurality of pouch-type battery cells in the vertical direction, and has a second space formed between the plurality of pouch-type battery cells; and a temperature sensor unit which is disposed on the side surface of the outer frame and is provided to measure the temperature of the plurality of pouch-type battery cells accommodated in the first space.

PREPARATION METHOD OF HIGH-PERFORMANCE LITHIUM SULFIDE AND HIGH-PERFORMANCE LITHIUM SULFIDE PREPARED THEREFROM

Resumen de: WO2026023745A1

The present invention relates to a preparation method of lithium sulfide having excellent performance as a solid electrolyte raw material, and lithium sulfide prepared therefrom. Specifically, the present invention relates to: a preparation method of lithium sulfide, comprising adjusting, during preparation of lithium sulfide, the particle size of raw materials and reaction conditions so as to minimize residual impurities in lithium sulfide, and improving the flow characteristics and aggregation characteristics of particles, thereby providing an excellent solid electrolyte raw material; and lithium sulfide.

BATTERY

Resumen de: WO2026023669A1

Provided is a battery including a positive electrode, a negative electrode disposed apart from the positive electrode, a separator sandwiched between the positive electrode and the negative electrode, and an electrolyte. The electrolyte may contain a nitrate, alkaline earth metal salt, or alkali metal salt at least including lithium nitrate and being in the amount of 0.1% to 50% with respect to the total mass of the electrolyte, and 1% to 40% of hydrofluoroether with respect to the total mass of the electrolyte. The electrolyte may contain 10% to 70% of fluoroethylene carbonate with respect to the total mass of the electrolyte.

BATTERY PACK

Resumen de: WO2026023997A1

According to exemplary embodiments, a battery pack is provided. The battery pack comprises: a pack housing including a base plate and a sidewall; a plurality of battery cell assemblies on the base plate; a lead coupled to the sidewall of the pack housing; and a foaming device configured to discharge a foamed layer into an inner space defined by the pack housing and the lead.

ELECTRICAL ENERGY STORAGE ASSEMBLY FOR A VEHICLE

Resumen de: US20260031457A1

An electrical energy storage assembly includes at least two electrical structure elements and at least one cold plate intended to exchange heat energy with at least one electrical structure element. Further, a belt casing and two caps define a cavity to house the electrical structure elements and, at least partially, a cooling structure including two cold plates fixed to respective peripheral edges of the belt casing axially opposite one another. A tier of electrical structure elements is fixed to an internal face of each cold plate and housed in the volume defined by the belt casing. The two tiers of electrical structure elements housed in the belt casing being arranged facing one another with an axial clearance formed between them.

BATTERY PACK WITH PHASE CHANGE MATERIAL (PCM) COMPOSITE

Resumen de: US20260031425A1

A battery pack includes: a plurality of battery cells; and a thermal conductive layer disposed between two battery cells of the plurality of battery cells, and configured to transfer heat from each of the two battery cells. The thermal conductive layer includes expanded graphite (EG) impregnated with a phase change material (PCM). The PCM may include an organic and/or inorganic PCM material. A thin thermal insulation barrier, such as aerogel, may be sandwiched between two anisotropic EG/PCM composites for regulating temperature and to prevent thermal runaway.

HEAT EXCHANGER

Resumen de: US20260031427A1

A heat exchanger including a body containing a working fluid and including a first manifold and a second manifold; at least one internal partition being arranged in the body to form at least two internal channels, each internal channel being in fluid communication with the first manifold and with the second manifold; the body being intended to be thermally coupled to a cold source at a first part and to a hot source at a second part, the first part and the second part being connected by an elbow part; and wherein each internal channel has a cross-section in which the dimensions are adapted so that the working fluid contained in the internal channel has an Eötvös number Eo that is less than or equal to 2.

INTEGRATED ENERGY STORAGE SYSTEM

Resumen de: US20260031463A1

An integrated, unitary battery pack may be formed and used as part of the structural support for a vehicle frame. The unitary battery pack includes arrays cells having all positive and negative electrical terminals aligned in-plane on a common face of the product assembly. The unitary battery pack includes cooling components for passively or actively cooling the cell arrays. The unitary battery pack is encased in a potting material that allows that forms part of the structure support for the unitary battery pack. The unitary batter pack may be integrated into the vehicle with or without additional support structures.

BATTERY SYSTEM HAVING STRUCTURE IN WHICH COOLANT CAN BE FED INTO BATTERY MODULE

Resumen de: US20260031424A1

A battery system includes a housing, a module stack having a plurality of battery modules stacked in a first direction in the housing, each of the plurality of battery modules including a plurality of battery cells and a module case accommodating the plurality of battery cells, a first venting portion formed in a first side of the module case, a coolant supply channel at a first side of the housing and extending in the first direction, and a plurality of first connection ducts extending in a second direction to connect a first venting portion of at least one battery module of the plurality of battery modules and the coolant supply channel.

LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY

Resumen de: US20260031325A1

A positive electrode for the lithium ion secondary battery includes a positive electrode current collector, and a positive electrode active material layer laminated thereon. The positive electrode active material layer includes a positive electrode first active material layer laminated on the positive electrode current collector, and a positive electrode second active material layer laminated on the positive electrode first active material layer, the positive electrode first active material layer includes a positive electrode first active material containing a lithium-containing composite oxide containing Li and Ni, the positive electrode second active material layer includes a positive electrode second active material containing a lithium-containing composite oxide containing Li and Ni, and a molar fraction of Ni in the positive electrode second active material of the positive electrode second active material layer is smaller than that of Ni in the positive electrode first active material of the positive electrode first active material layer.

ELECTROLYTE SOLUTION, BATTERY CELL, BATTERY, AND POWER CONSUMING APPARATUS

Nº publicación: US20260031402A1 29/01/2026

Solicitante:

CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Resumen de: US20260031402A1

This application provides an electrolyte solution, a battery cell, a battery, and a power consuming apparatus. The electrolyte solution includes a solvent. The solvent includes a first solvent. The first solvent is an organosiloxane compound. The content of the first solvent is greater than or equal to 20% of the total weight of the solvent.