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1174
resultados
Última actualización
29/03/2026 [07:21:00]
Resultados 25 a 50 de 1174
Resumen de: WO2026062354A1
The invention relates to an assembly (100) for a battery of an electric vehicle, which assembly comprises: - a support device (101) defining a metal chamber (102) intended to receive a heat-transfer fluid (10), the metal chamber (102) comprising an inlet (103) and an outlet (104) intended for the circulation of the heat-transfer fluid (10) through the metal chamber (102); - battery cells (105) each comprising a rigid outer casing (106), the battery cells (105) each being sealingly mounted to the metal chamber (102) such that they each have a first portion (107) extending inside the metal chamber (102) and a second portion (108) extending outside the metal chamber (102).
Resumen de: WO2026062351A1
The present invention relates to the use, in a Li-ion secondary battery, of an amorphous polymer P1 comprising at least one -(S-R-S)-(S-R-S)- segment.
Resumen de: WO2026061707A1
Proposed is an assembly (1) having at least a first element (2) and a second element (3) which are interconnectable by means of at least one latching element (6), the latching element (6) comprising the following: - two spring legs (7) which are connected to the first element (2) and which are interconnected via a bridge (9), the bridge (9) extending in a first spatial direction and the spring legs (7) allowing a deflection movement of the bridge (9) in a second spatial direction perpendicular to the first spatial direction, and - at least one projection (10) which protrudes from the bridge (9) in the second spatial direction and which can be engaged with a recess in the second element (3) in order to latch the first element (2) to the second element (3), with the bridge (9) being deflected in the second spatial direction.
Resumen de: WO2026062349A1
The invention relates to a solid electrolyte composition which can be used to manufacture a film offering a very good compromise between ion conductivity, electrochemical stability, high-temperature stability and mechanical strength. This composition can be used in a separator or an electrode of Na-ion or K-ion batteries.
Resumen de: WO2026062165A1
A current collector (200) for connecting an electrode tab (108) of an electrode assembly (106) to an electrode terminal (104) of a case (102) in which the electrode assembly (106) is received. The current collector (200) comprises a tab part (202) configured to be welded to the electrode tab (108) and extending in a first plane; a terminal part (204) configured to be connected to the electrode terminal (104) and extending in a second plane perpendicular to the first plane; and a connection part (206) connecting the tab part (202) to the terminal part (204) to provide a first current path (Cl) between the electrode tab (108) and the electrode terminal (104), the connection part (206) extending in a third plane perpendicular to both the first plane and the second plane. The tab part (202) comprises a first weld region (212) and the terminal part (204) comprises a second weld region (214), the first and second weld regions (212, 214) welded together to provide a second current path (C2) between the electrode tab (108) and the electrode terminal (104).
Resumen de: WO2026062161A1
The disclosure relates to a cell comprising natural graphite and an electrolyte additive. Natural graphite has higher surface functionality and thus reactivity with electrolyte than artificial graphite. This means that anode active material comprising natural graphite will typically degrade faster than the synthetic variant. It has surprisingly been found than the addition of a specific group of electrolyte additives improves the stability of a cell comprising large amounts of natural graphite as anode active material.
Resumen de: WO2026061701A1
The invention relates to a cooling device for a high-voltage battery comprising an external cooling circuit (7) operated with cooling water. The cooling device according to the invention is characterized in that the cooling circuit (7) is coupled via a heat exchanger (6) to a battery-internal cooling circuit (1) operated with a dielectric, wherein a hydrogen sensor (8) is provided in the high-voltage battery. The ingress of water is inferred starting from a critical hydrogen concentration at the hydrogen sensor (8).
Resumen de: WO2026062197A1
The invention relates to an electric energy storage device for a vehicle, comprising a housing in which a plurality of electrically interconnected individual cells are provided. According to the invention, at least one temperature-control element (2) and/or at least one temperature-control structure (3) for controlling the temperature of at least a number of individual cells provided in the housing is mounted or formed on and/or in at least one housing wall (1) and/or on and/or in a housing base (5) and/or on and/or in a housing cover.
Resumen de: WO2026062568A1
The present invention relates to a tape of polycrystalline solid electrolyte material of the formula (I) M3-z(Mek+)fX3-z+k*f wherein the tape has a thickness that is lower or equal to 100 µm, and a length that is greater than or equal to 1 mm. The invention further concerns the preparation process of a polycrystalline solid electrolyte of formula (I) or of a tape according to the invention comprising the steps of: disposing a compound of formula (I) or an ammonium complex thereof on a substantially planar surface, heating the compound of formula (I) or the ammonium complex thereof at a temperature ranging from 290 °C to 550 °C, and concomitantly or sequentially to the heating step, applying to the compound of formula (I) a pressure that is orthogonal to the substantially planar surface, said pressure ranging from 1.5 MPa to 30 MPa.
Resumen de: WO2026061672A1
The invention relates to a protection plate (10) configured to be assembled in a window of a cooler, notably a cooler formed by two joined plates, this protection plate (10) comprising at least one ventilation opening (12) which is initially closed by a cap (27) connected to the periphery of the ventilation opening (12) by at least one zone of frangible material (28) so that the cap (27) can be removed from the opening in order to define an off-gassing passage (29) in the event of off-gassing from a cell (101) of a battery positioned facing the cap (27), the protection plate (10) also being fire-resistant.
Resumen de: WO2026061909A1
The invention relates to a thermal management system (3) for a motor vehicle (1) comprising a storage battery (2), comprising a first thermo-fluidic circuit (4) in which a first fluid circulates and a second thermo-fluidic circuit (5) in which a second fluid circulates, a heat transfer module (6) configured to thermally couple the first thermo-fluidic circuit and the second thermo-fluidic circuit, the second thermo-fluidic circuit being configured to be thermally coupled to the storage battery. According to the invention, the management system comprises a control module (7) configured to control the flow rate of the second fluid in the second thermo-fluidic circuit as a function of a setpoint value representative of a value of thermal power to be transferred to the accumulator battery. Also proposed is a motor vehicle equipped with a storage battery and such a thermal management system. A thermal management method is also proposed.
Resumen de: WO2026061883A1
The present disclosure provides a method for preparing a positive electrode active material powder for Li-ion rechargeable batteries, comprising: providing a first mixture of Li transition metal oxide particles with an Al-containing compound powder; milling the first mixture to obtain a first intermediate material powder; and milling the first intermediate material powder using jet mills to obtain a second intermediate material powder.
Resumen de: WO2026061885A1
A method for producing a metal-containing hydroxide or oxyhydroxide particulate material, the method comprising the steps of: (a) providing a first slurry comprising ammonia and particles of hydroxide or oxyhydroxide of metals Mc; (b) reducing a level of ammonia (NH3(aq)) from at least a portion of the first slurry to obtain a seed slurry; and (c) combining the seed slurry with streams of an aqueous solution (As) containing salts of metals Ms and an aqueous solution (Bs) containing a precipitating agent, thereby obtaining a second slurry comprising particles having a layer of hydroxide or oxyhydroxide of Ms on the particles of the seed slurry, wherein the Mc=Ni1-xc-yc-zcMnxcCoycAzc with 0≤xc≤0.85, 0≤yc≤0.35, 0≤zc<0.1, and 0.15≤1-xc-yc-zc≤1; and wherein the Ms=Ni1-xs-ys-zsMnxsCoysAzs with 0.55≤xs≤0.85, 0≤ys≤0.35, 0≤zs<0.1, and 0.15≤1-xs-ys-zs≤0.45.
Resumen de: WO2026061802A1
The invention relates to a storage battery (10) comprising a housing (20) that houses electrochemical cells and a management system (42) for managing the electrochemical cells. According to the invention, the battery comprises, in the housing (20): - at least one heating layer (60) that incorporates an electrical track suitable for being supplied with current by the electrochemical cells so as to heat the electrochemical cells through Joule heating, and - a transistor (80) controlled by the management system, this management system being programmed to carry out pulse-width modulation of the electrical power received by the at least one heating layer.
Resumen de: US20260088345A1
A cathode material of the present disclosure includes a cathode active material, a coating layer containing a first solid electrolyte, and coating at least part of a surface of the cathode active material, and a second solid electrolyte. The first solid electrolyte contains Li, Al, and X, and does not contain Ti. X is at least one selected from the group consisting of F, Cl, Br, and I. The ratio of the volume of the first solid electrolyte to the total volume of the first solid electrolyte and the cathode active material is greater than or equal to 5.6% and less than or equal to 8.1%.
Resumen de: US20260088288A1
A lithium secondary battery according to exemplary embodiments may include a cathode which includes: a cathode current collector, and a cathode active material layer formed on the cathode current collector and including cathode active material particles; and an anode disposed to face the cathode. The cathode active material particles may include activated over-lithiated oxide particles and a coating material formed on at least a portion of the surface of the activated particles and containing a coating element. An upper limit of operation voltage of the lithium secondary battery may be 4.5 V or less relative to the oxidation-reduction potential of lithium.
Resumen de: US20260088268A1
The present invention relates to a method for forming an SEI layer on an anode by using a non-electrochemical process for alkaliating anodes, resulting in reductions of the manufacturing capital requirements, time investments and energy consumed during industrial battery production.
Resumen de: US20260088294A1
Provided is a positive electrode including a positive electrode current collector; and a positive electrode active material layer located on the collector and including a positive electrode active material, a copolymer binder, and an amine. The copolymer binder includes a first structural unit including a carboxyl group and a nonionic second structural unit, and the carboxyl group and the amine are present in a form of a salt. The positive electrode increases capacity while reducing production cost, thereby ensuring long cycle-life characteristics and improving high-voltage characteristics and high-temperature storage characteristics. The rechargeable lithium battery including the positive electrode may exhibit high initial charge/discharge capacity and efficiency even under high voltage driving conditions, and can achieve long cycle-life characteristics.
Resumen de: US20260088371A1
A traction battery for a motor vehicle, with a battery housing in which a battery cell is arranged, which is electrically connected via an electrical connection device to an electrical battery connection of the traction battery and/or to a further battery cell also arranged in the battery housing. A gas sensor for detecting at least one gas component of a gas present in the battery housing is arranged on the connection device and is electrically connected via the connection device to a battery control device.
Resumen de: US20260088297A1
An ionically conductive polymeric binder for a cathode including m repeat units according to formula (I) and n repeat units according to formula (II)wherein R1 is (CH2)x—R3, wherein x is between 1 and 20 and R3 is H or CN; R2 and R5, individually, are C1-C10 alkyl or C2-C10 alkenyl; M is an alkali metal or an alkaline earth metal; the ratio of m to n (m/n) is between 25:1 and 1:25; and m+n is q, wherein q is between 50 and 5000. Also, a cathode including the ionically conductive polymeric binder, and a method of producing the ionically conductive polymeric binder.
Resumen de: US20260088293A1
A halogen-free polymeric binder for a cathode according to formula (I)wherein R1 is (CH2)x—R3, wherein x is between 1 and 20 and R3 is H or CN; R2 is C1-C10 alkyl or C2-C10 alkenyl, and n is between 50 and 5000. Also, a cathode including the halogen-free polymeric binder, and a method of producing the halogen-free polymeric binder.
Resumen de: US20260088290A1
Provided are a positive active material for a lithium secondary battery, a method of preparing the positive active material, a positive electrode for a lithium secondary battery including the positive active material, and a lithium secondary battery including a positive electrode including the positive active material, in which the positive active material may include a nickel-based lithium metal oxide secondary particle including a plurality of large primary particles, the nickel-based lithium metal oxide secondary particle may have a hollow structure having a pore inside, a size of each of the large primary particles may be in a range of about 2 micrometers (μm) to about 6 μm, and a size of the nickel-based lithium metal oxide secondary particle may be in a range of about 10 μm to about 18 μm.
Resumen de: US20260088291A1
A coated active material according to the present disclosure includes: a positive electrode active material; and a coating layer coating at least a portion of a surface of the positive electrode active material. The coating layer includes a compound including Li, M, and F. In the compound, the M is at least one element selected from the group consisting of metalloid elements and metal elements other than Li. An amount of F in the compound per unit surface area of the positive electrode active material is 10 mg/m2 or more and 280 mg/m2 or less.
Resumen de: US20260088292A1
A negative electrode active material, a negative electrode for a rechargeable lithium battery including the same, and a method for preparing the same are provided. A negative electrode active material includes a carbon-based material, and a surface modifier on a surface of the carbon-based material, where the surface modifier includes a polar functional group, and the polar functional group contains at least one of a carboxyl group, an amine group, a thiol group, and/or a combination thereof.
Nº publicación: US20260088287A1 26/03/2026
Solicitante:
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Resumen de: US20260088287A1
A main object of the present disclosure is to provide an electrode active material capable of suppressing the volume change of the electrode layer. The present disclosure achieves the object by providing an electrode active material including a secondary particle that is an aggregation of a plurality of primary particle, wherein the primary particle is a Si-based active material containing a Si element, and a particle size D10 (μm) and a particle size D50 (μm) of the secondary particle satisfy the specified formula (1).
BOPI
Sede Electrónica
