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BAC DE BATTERIE COMPORTANT UN CANAL DE REFROIDISSEMENT COMPRENANT UN ENSEMBLE DE RACCORDEMENT

Resumen de: FR3166244A1

L’invention concerne un bac de batterie comportant une pluralité de modules comprenant des cellules électrochimiques, ledit bac de batterie comportant un carter comprenant au moins un canal de refroidissement (1), caractérisé en ce que ledit canal de refroidissement (1) comporte un ensemble de raccordement (2), ledit ensemble de raccordement (2) comportant une première connectique mâle (3) et une deuxième connectique mâle (4) positionnées sur ledit canal de refroidissement (1), ledit ensemble de raccordement (2) comportant un premier tuyau (5) et un deuxième tuyau (6), le premier tuyau (5) et le deuxième tuyau (6) étant aptes à se raccorder entre eux et/ou avec le canal de refroidissement (1). L’invention concerne également un véhicule automobile électrique ou hybride comportant un tel bac de batterie et un circuit de refroidissement. Figure 1

Procédé automatique d’estimation de la variation d’entropie d’une cellule d’une batterie

Resumen de: FR3166213A1

Procédé automatique d’estimation de la variation d’entropie d’une cellule d’une batterie Ce procédé comporte : - une phase (130) de calibration comportant : • une étape (132) de relevés, pour différents états de charge de la cellule, des valeurs de l’état de charge de la cellule, de la température interne de la cellule et de l’intensité du courant qui traverse la cellule et/ou de la tension entre les bornes de la cellule, et • la détermination (134), à partir des relevés réalisés, des coefficients βj d’un modèle polynomial qui relie une valeur ΔSk2 de la variation d’entropie à un instant k2 à une valeur SOCk2 de l’état de charge de la cellule à cet instant k2, et - lors d’une phase d’exploitation, l’estimation (116) de la valeur ΔSk2 de la variation d’entropie de la cellule à l’aide du modèle polynomial. Fig. 3

Dispositif de régulation thermique, notamment de refroidissement

Resumen de: FR3166203A1

Dispositif de régulation thermique, notamment de refroidissement L’invention concerne un dispositif de régulation thermique, notamment de refroidissement, ce dispositif comportant une plaque supérieure et une plaque inférieure (3) assemblée avec la plaque supérieure pour former ensemble une pluralité de canaux (5) de circulation pour un fluide caloporteur, dispositif de régulation thermique dans lequel : au moins deux paires de canaux partagent un canal commun (15), et les deux ponts d’interconnexion (16) sont connectés à ce canal commun (15), en deux points de connexion qui sont distants l’un de l’autre par une distance non nulle dans le sens de la longueur du canal, ouau moins deux paires de canaux (15) sont formées par quatre canaux distincts, et les deux ponts d’interconnexion (16) sont alors séparés l’un de l’autre par l’espace entre les deux paires de canaux (15). Figure pour l’abrégé : Figure 2

GEL ELECTROLYTE, ELECTROCHEMICAL CELL AND BATTERY COMPRISING SAID ELECTROLYTE, METHOD OF PREPARATION AND USES THEREOF

Resumen de: WO2026052753A1

The present invention relates to a gel electrolyte comprising: (i) at least one solvent selected from: a) a fluorinated ether of formula (I): wherein R1 is selected from -CHF2, -CF3, -CH2CHF2, -CH2CF3, -CF2CHF2, -CF2CF3, -CHFCHF2 and - CHFCF3; R3 is selected from -CHF2, -CF3, -CH2CHF2, -CH2CF3, -CF2CHF2, -CF2CF3, -CHFCHF2, - CHFCF3, -CH3, -CH2CH3 and (III); R2 is selected from -CH2-, -OCH2CH2-, -OCH2CH2CH2- and -OCH2CH2CH2CH2-; n is an integer from 0 to 10; b) a sulfonamide of formula (II): wherein R1 is selected from F, a linear or branched C1-C12 alkyl group which may be substituted with one or more fluorine atom(s), a linear or branched C2-C12 alkenyl group which may be substituted with one or more fluorine atom(s), a C3-C12 cycloalkyl group which may be substituted with one or more fluorine atom(s) and a C6-C12 aryl group which may be substituted with one or more fluorine atom(s), and R2 and R3 are independently selected from a linear or branched C1-C12 alkyl group which may be substituted with one or more fluorine atom(s), a linear or branched C2-C12 alkenyl group which may be substituted with one or more fluorine atom(s), a C6-C12 aryl group which may be substituted with one or more fluorine atom(s), and CH2CH2O-(CH2CH2O)n-R, wherein R is H 49 or a methyl group and n is an integer from 1 to 20; or R2 and R3 may be combined with each other to form a nitrogen-containing aliphatic ring; c) a combination of a) and b); (ii) at least one lithium salt; (iii) a cross-linked pol

ELECTROCHEMICAL CELL

Resumen de: WO2026052182A1

An electrochemical cell (1) is provided as a pouch battery cell having a housing in the form of a pouch film (2) and comprises an anode (3), a cathode (4), and a reference electrode (5) arranged asymmetrically to the anode (3) and the cathode (4), such that the reference electrode (5) is integrated into the pouch film (2).

HIGHLY PERMEABLE CERAMIC COATED SEPARATORS AND RELATED COMPONENTS, BATTERIES, AND METHODS

Resumen de: WO2026055467A1

In some embodiments, a separator includes a polymer membrane, and a separator coating disposed on the polymer membrane. The separator coating includes (1) ceramic particles including a mixture of higher-aspect ratio ceramic particles (HARCPs) and lower-aspect ratio ceramic particles (LARCPs) and (2) a binder. The separator coating may have a thickness of about 0.5 μm to about 5.0 μm and a mass fraction of the binder in the separator coating may be 20 wt. % or less. The ceramic particles may include Al2O3, AlO(OH), and/or Al(OH)3. The HARCPs may be characterized by an HARCP aspect ratio of more than about 3 and the LARCPs may be characterized by an LARCP aspect ratio of about 1 to about 3. Integrated electrode-separator components, lithium-ion batteries, and related methods are also disclosed.

BATTERY COMPRISING A POLYMERIC ORGANIC ELECTRODE MATERIAL DECOMPOSABLE INTO MONOMERS BY CHEMICAL AND/OR ENZYMATIC REACTIONS, PRODUCTION PROCESS, USE, AND METHOD FOR RECYCLING THE BATTERY

Resumen de: WO2026052188A1

Batteries are described which comprise, as redox-active electrode material, specific organic compounds that are recyclable by depolymerization. The present invention further relates to the use of these specific recyclable compounds as electrode material in batteries and to a process for producing batteries starting from corresponding recycled compounds.

FUNCTIONAL CURRENT COLLECTORS FOR LOW VOLTAGE PROTECTION IN METAL-ION BATTERIES

Resumen de: WO2026055399A1

A battery cell includes an electrolyte, a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The positive electrode includes one or more layers of a positive electrode active material deposited on a positive current collector. The negative electrode includes one or more layers of a negative electrode active material deposited on a negative current collector. At least one of the positive current collector and the negative current collector may be a functional current collector having a metal foil interposed between a first protective layer and a second protective layer. The first protective layer and the second protective layer prevent a corrosion of the metal foil while the battery cell is in a low-voltage state or a zero-voltage state.

BATTERY HOUSING, IN PARTICULAR UNDERFLOOR HOUSING FOR TRAINS

Resumen de: WO2026052249A1

The invention relates to a battery housing, in particular an underfloor housing for trains, comprising a main part (2), which is open on one side, for receiving electrically interconnected battery cells and a cover (3), which closes the open side of the main part (2). The battery housing is characterized in that the cover (3) is equipped, on the main part side, with a thermal insulating element (4) which, in the closed position, protrudes at least partly into a volume space (5) provided by the main part (2), a gap (8) being formed in an overlapping region (6) between an edge (7), provided by the main part (2), and the insulating element (4), and the edge (7) and/or the insulating element (4) having a fire protection element (9) made of a material which swells into the gap (8) under the effect of heat.

ENCLOSURE FOR BATTERY INCLUDING DEGRADABLE MATERIALS

Resumen de: WO2026054867A1

Disclosed herein is a battery assembly comprising a housing comprising plurality of walls (120) defining a space configured for positioning a battery cell (10) therein, wherein one of the walls comprises an inlet (300) for receiving a degradable coating composition (7), and wherein one of the walls comprises an outlet (400) for discharge of a degraded coating.

BATTERY CELL

Resumen de: WO2026052307A1

A battery cell (100) has a cylindrical housing (110) and an electrode winding (120) having a layered structure (200) wound around a winding core (190). At least one electrode has a current collector (150) protruding in the longitudinal direction, wherein the electrode winding (120) is arranged in the housing (110) in such a way that an electrical contact to a positive terminal or negative terminal of the battery cell (100) is formed by the current collector (150). The current collector (150) has a plurality of tabs (151, 152) which extend in the longitudinal direction from corresponding tabs of the anode layer and the cathode layer, wherein the tabs (151, 152) are bent over in order to thus form a contact plane on a corresponding end face of the electrode winding (120) for the electrical contact. The tabs (151, 152) are bent in a direction toward the winding core (190) in a first region, which circumferentially adjoins an outer circumference of the electrode winding (120), and in a direction away from the winding core (190) in a second region of the end face, which circumferentially adjoins the winding core (190).

UNIVERSAL BATTERY PACK

Resumen de: WO2026052290A1

The one or more specified settings associated with the one or more battery cells in the battery pack to facilitate power transfer between the one or more battery cells in the battery pack for a battery pack is configured. The one or more settings associated with the one or more battery cells in the battery pack are accessed. The configuration for the battery pack, until the configuration meets or exceeds the battery power requirements is optimized.

MODULE OF AN ASSEMBLY FOR EXCHANGING HEAT WITH BATTERY CELLS

Resumen de: WO2026052300A1

The present invention relates to a module of an assembly for exchanging heat with at least one battery cell, comprising at least: - a support structure for supporting at least one battery cell comprising at least one orifice forming a housing with a shape complementary to the peripheral edge of the at least one cell, - a heat-exchange panel (11) positioned against the support structure and comprising an interior volume for the circulation of a heat transfer fluid between at least one fluid inlet orifice and one fluid outlet orifice, characterized in that the heat-exchange panel is produced by at least two structures of substantially planar shape positioned facing each other and assembled together by their peripheral edges so that the sealing of the interior volume of the heat-exchange panel is achieved by a peripheral weld, welding the two structures together.

JOINING MECHANISM FOR JOINING A MALE-TYPE PIPE END AND A FEMALE-TYPE PIPE END

Resumen de: WO2026052301A1

The invention relates to a joining system (1) for the circulation of a fluid between a male duct (2) and a female duct (3), which comprises: - a first connection interface (21) produced by the outer surface of the male duct (2), - a second connection interface (31) complementary to the first connection interface (21) and produced by the inner surface of the female duct (3), - an axial elastic intermediate joining device (11) comprising at least one respective surface (112, 113) opposite the first (21) and the second (31) connection interface, in order to be compressed between these interfaces (21, 31), characterized in that: - the second connection interface (31) comprises a drainage orifice (41) towards a drainage channel borne by the female duct (3), - the axial elastic intermediate joining device (11) comprises, opposite the second connection interface (31), at least two lips or series of lips (51, 52) orthogonal to the axis of the device (11), the intermediate joining device (11) being positioned with insertion into the female duct (31) such that each lip or series of lips (51, 52) is arranged on either side of the drainage orifice (41) of the second connection interface (31).

CATHODE ACTIVE MATERIAL ENCAPSULATED IN NANOSTRUCTURED METAL PYROPHOSPHATE PARTICLES, AND USE THEREOF IN SODIUM ION BATTERIES

Resumen de: WO2026051386A1

A coated cathode active material for a sodium ion secondary battery, the coated cathode active material comprising particles of a cathode active material for a sodium ion secondary battery encapsulated within a coating layer of nanostructured zirconium pyrophosphate particles produced by flame spray pyrolysis.

ELECTROCHEMICAL SYSTEM, AND METHOD FOR OPERATING AN ELECTROCHEMICAL SYSTEM

Resumen de: WO2026052170A1

The invention relates to an electrochemical system (1), in particular a battery system, to be assigned a first cell stack (3), which comprises a plurality of liquid electrolyte cells (5), and a second cell stack (2, 4), which comprises a plurality of solid electrolyte cells (6). The electrochemical system (1) operates with a combined fluid-operated heat transport system (9) that exchanges heat via solid bodies and is designed to transport heat between the various cell stacks (2, 3, 4).

IRON PHOSPHATE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Resumen de: WO2026051096A1

Provided are an iron phosphate material and a preparation method therefor, a positive electrode material, a positive electrode sheet, and a secondary battery. The iron phosphate material is doped with titanium. At least part of the surface of primary particles of the iron phosphate material has a laminated structure. In a plurality of lamellas of the laminated structure, any two adjacent lamellas are respectively located on one side of each other. The preparation method comprises: providing a mixed solution comprising a ferrous salt, a titanium salt and a phosphate; mixing the mixed solution with a first alkali source to obtain a first slurry; adding an oxidant and a second alkali source to the first slurry to obtain a second slurry; performing a first solid-liquid separation treatment on the second slurry to obtain a filter cake; mixing the filter cake with a phosphoric acid solution, and aging the resulting mixture to obtain a third slurry; and performing a second solid-liquid separation treatment on the third slurry, then drying same, and performing a calcination treatment to obtain an iron phosphate material. Further provided are a positive electrode material comprising the iron phosphate material, a positive electrode sheet comprising a positive electrode active layer of the positive electrode material, and a secondary battery comprising the positive electrode sheet.

BATTERY MANAGEMENT SYSTEM, OPERATING METHOD THEREOF, AND BATTERY PACK

Resumen de: US20260074305A1

A battery management system (BMS) including a memory in which a resistance value of a wiring resistor of an electrical connection path between a battery cell and the BMS is stored, and a processor configured to measure a first cell voltage of the battery cell and to remove a voltage error due to the wiring resistor reflected in the measured first cell voltage based on the resistance value of the wiring resistor stored in the memory to estimate a second cell voltage that is an actual voltage of the battery cell.

PREPARATION METHODS FOR AND USE OF POLYAMIDE-IMIDE BINDER AND POSITIVE ELECTRODE SHEET

Resumen de: WO2026051195A1

The present invention relates to the technical field of positive electrode sheets of lithium batteries, and in particular relates to preparation methods for and the use of a polyamide-imide binder and a positive electrode sheet. The polyamide-imide binder is a high-molecular polymer prepared by polymerizing a diamine monomer and a dianhydride monomer to prepare a polyamide acid intermediate, then adding a diisocyanate thereto and performing cross-linking. The polyamide-imide binder comprises both amide groups and imide groups, and has a number-average molecular weight of 50,000-300,000. The positive electrode sheet comprises the polyamide-imide binder. In the polyamide-imide binder, some amide groups are added on the basis of polyimide, thereby retaining high tensile strength and elasticity modulus of the imide groups, improving the flexibility and impact resistance of the electrode sheet, lowering the cracking risk of the electrode sheet, enhancing the capacity retention ratio and safety of a battery and prolonging the service life; moreover, the energy density of the battery can be further improved by means of thick coating.

POLYMER ELECTROLYTE MEMBRANE, BATTERY CELL, BATTERY DEVICE, AND ELECTRIC DEVICE

Resumen de: WO2026051479A1

A polymer electrolyte membrane, a battery cell, a battery device, and an electric device. The polymer electrolyte membrane comprises a first polymer electrolyte membrane and a second polymer electrolyte membrane which are stacked; the first polymer electrolyte membrane comprises a first polymer, a first plasticizer, and a first electrolyte salt, and the second polymer electrolyte membrane comprises a single-ion conducting polymer electrolyte. The polymer electrolyte membrane is used in the battery cell so that the battery cell has good cycle performance.

IDENTIFICATION METHOD, BATTERY SYSTEM, ENERGY STORAGE POWER SOURCE AND STORAGE MEDIUM

Resumen de: WO2026051430A1

Disclosed are an identification method, a battery system (10), an energy storage power source (100) and a storage medium. The identification method is used for a battery system (10), wherein the battery system (10) comprises a plurality of battery modules (11), each battery module (11) comprises a battery management system board (111), and the battery management system board (111) comprises an input interface (1111). The identification method comprises: acquiring a level of the input interface (1111) of the battery management system board (111); when the level of the input interface (1111) is a low level, determining that a battery module (11) corresponding to the battery management system board (111) is a master module; and when the level of the input interface (1111) is a high level, determining that the battery module (11) corresponding to the battery management system board (111) is a slave module.

SUPRAMOLECULE AND RECHARGEABLE LITHIUM BATTERIES INCLUDING THE SAME

Resumen de: US20260074224A1

A supramolecule and a rechargeable lithium battery including the supramolecule are provided. The supramolecule includes: a polymer having a functional group capable of hydrogen bonding; and an aromatic compound having two or more amine groups, wherein the functional group capable of hydrogen bonding of the polymer and the amine group of the aromatic compound form a hydrogen bond.

POSITIVE ELECTRODE ACTIVE MATERIAL, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260074220A1

A positive electrode active material, a secondary battery, and an electric device are disclosed. The positive electrode active material satisfies the following relationship: 300≤P*D/Δθ≤800; where P represents the porosity of the positive electrode active material, with a unit of %; D represents the crystal plane dimension of the (110) crystal plane of the positive electrode active material, with a unit of Å; and Δθ represents a splitting degree between a diffraction angle of the (110) crystal plane and that of (108) crystal plane of the positive electrode active material, with a unit of °.

NEGATIVE ELECTRODE MATERIAL AND BATTERY EMPLOYING SAME

Resumen de: US20260074208A1

A negative electrode material 1000 of the present disclosure includes a negative electrode active material 111, a sulfide solid electrolyte 100, and a conductive additive 110. The negative electrode active material 111 includes a lithium vanadium oxide, a proportion of a volume of the negative electrode active material 111 to a sum of the volume of the negative electrode active material 111 and a volume of the sulfide solid electrolyte 100 is 40% or more and 80% or less, and a proportion of a volume of the conductive additive 110 to a sum of the volume of the negative electrode active material 111, the volume of the sulfide solid electrolyte 100, and the volume of the conductive additive 110 is more than 4.4% and 15% or less.

VANADIUM OXIDE COMPOSITE AND BATTERY USING SAME

Nº publicación: US20260074207A1 12/03/2026

Solicitante:

PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd

Resumen de: US20260074207A1

A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide represented by a composition formula (1) Li3+x+aV1−xMxO4+a/2, and an electrically conductive material at least partially coating a surface of the particle. In the composition formula (1), 0