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1235
resultados
Última actualización
11/02/2026 [07:44:00]
Resultados 1075 a 1100 de 1235
Resumen de: EP4685877A1
The present disclosure relates to a nickel-manganese-based sodium ion battery cathode material and a preparation method thereof, a cathode sheet as well as a sodium ion battery, which belongs to the technical field of secondary batteries. Wherein, the nickel-manganese-based sodium ion battery cathode material is represented by a general formula of NacNiaMnbO2, where, a+b=1.0, 0.4≤a≤0.6, 0.4≤b≤0.6, 0.67≤c≤1.0; the nickel-manganese-based sodium ion battery cathode material is secondary particles formed of the stacking of primary particles, wherein the primary particles are sheet-like particles, and the secondary particles are spherical particles, and it has a specific discharge capacity of ≥115 mAh•g<-1>.The sodium ion battery prepared from the nickel-manganese-based sodium ion battery cathode material provided in this disclosure has a good cycle life and energy density, which helps to broaden the application fields of sodium ion batteries.
Resumen de: US2024339656A1
A process for preparing a solid electrolyte that includes mixing a lithium source with a sulfur source and a compound containing phosphorous and sulfur to form a composite, then heating the composite to the melting point of the compound containing phosphorous and sulfur to form the solid electrolyte material. A solid electrolyte material prepared by the process, wherein the solid electrolyte material is of formula I, which is Li(7−y−z)PS(6−y−z)X(y)W(z) wherein X and W are individually selected from F, Cl, Br, and I; where y and z each individually range from 0 to 2; and where y+z ranges from 0 to 2.
Resumen de: US2024405226A1
A method of producing conductor-speckled active material particles includes agitating conductive particles within an aqueous binder solution that includes a mixture of binder particulates suspended within a water-based medium. An intermediate powder including the conductive particles dispersed amongst the mixture of binder particulates is generated by evaporating water from the aqueous binder solution to generate. Subsequently, the particulate mixture including active material particles and the intermediate powder is agitated to generate a powder mixture of conductor-speckled active material agglomerations. Each of the conductor-speckled active material agglomerations includes a plurality of conductive particles in electrical contact with one or more active material particles. Further, the conductor-speckled active material agglomerations include binder particulates interspersed between one or more active material particles.
Resumen de: EP4685256A1
The present disclosure relates to a positive electrode current collector for a rechargeable lithium battery, a positive electrode including the positive electrode current collector , and a rechargeable lithium battery including the positive electrode current collector. In particular, the present disclosure relates to a positive electrode current collector being formed from a heterogeneous Al alloy comprising or essentially consisting of a first phase consisting of Al, Cu, Fe and unavoidable impurities; and a second phase consisting of Al, Cu, Fe, Si and unavoidable impurities.
Resumen de: EP4685898A1
Battery pack for a road vehicle with electric propulsion; wherein the battery pack comprises: a plurality of planar electrochemical cells arranged in pack along an axis A; and a support structure that comprises two plates opposite along the axis and parallel to the cells, wherein the two plates define the housing volume for the cells; wherein the cells at the beginning of life are housed in the support structure with an initial preload along the axis that generates a corresponding initial axial stress acting on the plates; wherein each cell comprises two flat faces orthogonal to the axis A and a thickness along the axis A that gradually increases over the life of the battery pack; wherein the plates 8, 9 are configured to move away from each other along the axis A such that an increase in cell thickness 6 does not result in a corresponding progressive increase in the axial stress acting on the plates 8, 9.
Resumen de: EP4685927A1
The invention relates to a modular housing unit and modular housing system for electrical cell modules, in particular for an electric vehicle. It also relates to a method of assembling the same. The modular housing unit supports an electrical cell module in an electric vehicle. The housing unit includes a base having an upper face; a wall circumscribing the base and extending away from the upper face to define a compartment opening; and a unit compartment within the upper face and the wall. The unit compartment is accessible through the compartment opening. The housing unit receives through the compartment opening at least one electrical cell module for mounting in the unit compartment. The wall is releasably mountable in an assembled position to a corresponding wall of a second housing unit so that, in the assembled position, the base of the second housing unit forms a closure of the compartment opening.
Resumen de: EP4685901A1
A method for disassembling a laminated battery (10) includes: preparing a laminated battery (10) including a laminate (20), an electrode body (30) enclosed in the laminate (20), and an electrolyte (40) enclosed in the laminate (20); and heating the laminated battery (10) until at least the laminate (20) is unsealed.
Resumen de: EP4685991A1
Provided are a battery cell (100), a method for preparing a battery cell (100), a battery (1000), and an electrical apparatus. The battery cell (100) comprises: a case (10) comprising a first wall (11); a terminal post (20) arranged on the first wall (11) and having a through hole (211); a cover plate (40) arranged on one side of the terminal post (20) and covering one respective end of the through hole (211); and an electrode assembly (30) comprising an active material-coated portion (31) and a conductive portion (32) connected to the active material-coated portion (31), wherein the active material-coated portion (31) is arranged in the case (10), and at least a portion of the conductive portion (32) is arranged in the through hole (211) and connected to the cover plate (40).
Resumen de: EP4685880A1
The invention provides a lithium-ion battery electrolyte and an application thereof, wherein the lithium-ion battery electrolyte includes at least: a non-aqueous solvent; a lithium salt; an additive; and hydrogen fluoride, wherein the additive includes a substance represented by a following general formula (I):wherein R<sub>1</sub>, R<sub>2</sub>, and R<sub>3</sub> are respectively substituents with 1 to 6 carbon atoms, 0 to 4 unsaturation, and 0 to 3 heteroatoms; the heteroatoms are selected from at least one of nitrogen or oxygen; and n is 0 to 2; a content of the additive in the lithium-ion battery electrolyte is 0.05 wt% to 3 wt%; and a content of the hydrogen fluoride in the lithium-ion battery electrolyte is 30 ppm to 200 ppm.
Resumen de: EP4685908A1
A lithium-ion battery electrolyte, a lithium-ion battery, and an electrochemical apparatus are provided. The electrolyte includes a non-aqueous solvent, a lithium salt, and an additive including a first additive and a second additive. The first additive is selected from compounds represented by formula (I), and the second additive is lithium bis(oxyalyl)difluorophosphate, andwhere R<sub>1</sub>, R<sub>2</sub>, R<sub>3</sub>, and R<sub>4</sub> are each independently a substituent having 1 to 3 carbon atoms, 0 to 4 unsaturations, and 0 to 3 heteroatoms, the heteroatoms are selected from at least one of nitrogen, phosphorus, or sulfur, and n is 0 to 2.
Resumen de: EP4684907A1
A welding positioning apparatus includes a main board (10) and a pressing block (20) connected to the main board; the welding positioning apparatus is provided with a guide hole (30) penetrating through the main board and the pressing block in a first direction, and a protective sheet (40) is embedded in the guide hole and is movable in the first direction x in the guide hole; an area of an orthographic projection (701) of a tab (70) on a plane perpendicular to the first direction x is S1; a surface of the main board away from the pressing block is a first surface (101), the guide hole penetrates through the first surface, and an area of the guide hole on the first surface is S2 and satisfies: 0.14 ≤ S2/S1 ≤ 0.65. By providing the guide hole, the positioning apparatus achieve the guiding and positioning effect on the protective sheet, avoiding an offset of the protective sheet. Meanwhile, a relationship between the area of the guide hole and the projected area of the tab is defined, ensuring that the protective sheet completely covers a welding region of the tab, improving the welding yield of the protective sheet and the tab, and thereby improving the overall safety performance of the battery. A welding device is further disclosed.
Resumen de: EP4685911A1
This all-solid-state secondary battery comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, wherein: the positive electrode layer comprises a positive electrode current collector and a positive electrode active material layer; the solid electrolyte layer includes a sulfide-based solid electrolyte; the negative electrode layer comprises a negative electrode current collector, a first negative electrode active material layer, and a first protective layer disposed between the negative electrode current collector and the first negative electrode active material layer; the first negative electrode active material layer comprises a carbon-based material matrix and a metal-based negative electrode active material located within the carbon-based material matrix; the carbon-based material matrix has a first carbon-based nano structure; the first protective layer has a second carbon-based nano structure; and the specific heat capacity of the negative electrode current collector is 450 J/Kg·K or more.
Resumen de: EP4685863A1
A lithium secondary battery according to an embodiment is a lithium secondary battery including a negative electrode and a positive electrode, in which the negative electrode has: in the following order, a current collector layer; a first lithium metal layer made of a lithium metal foil; a second lithium metal layer including granular lithium metal; and a third lithium metal layer including lithium metal and being porous, the granular lithium metal having an average particle diameter larger than an average pore diameter of the third lithium metal layer.
Resumen de: CN120677060A
An aerogel composite sheet material and related methods are disclosed. In one aspect, an aerogel composite sheet material includes a plurality of individual fibrous sheets arranged in a stack, and a matrix including an aerogel surrounding the plurality of individual fibrous sheets. In one aspect, an aerogel composite sheet material includes a fibrous sheet and a matrix including an aerogel surrounding the fibrous sheet. The aerogel composite sheet material can include an exposed major surface, the exposed major surface including a fracture surface.
Resumen de: CN121002706A
The invention relates to a battery cell arrangement, comprising: a battery tray (2), which is arranged at the lower end in a mounting position and is designed to accommodate a plurality of battery cells (4) arranged side by side; a battery cell holder (6), which serves as a fixing element and has a plurality of battery cell receptacles designed to receive the battery cells (4) inserted therein; a contact carrier (10) arranged on the top of the battery cell and comprising contacts for electrical connection to the battery cell (4); and a casting resin (8) which can be injected into the battery tray (2) in order to enclose the battery cells (4) in the battery cell holder (6) and optionally also the contact carrier (10). In order to shorten the production cycle, the battery cell carrier (6) is designed as a shell-like battery cell carrier shell with an open end, which has a closed carrier plane that serves as a mounting surface and is spaced apart from the open end by a carrier edge. The battery cell accommodating part comprises a battery cell support sheath surface which is designed to be in a short tube shape, and an intermediate section (61) is formed between two adjacent battery cell support shell surfaces.
Resumen de: CN120883422A
Examples of the invention may include a method of constructing a battery pack for an electric vehicle, including fixedly disposing at least one battery module in a lower tray. Examples include covering a lower tray with an intermediate baffle, defining a coolant reservoir located between the lower tray and the intermediate baffle, where at least one battery module is positioned partially through a battery module opening of the intermediate baffle, where an electrical coupling of the at least one battery module is located above the intermediate baffle, and where the coolant reservoir is located between the lower tray and the intermediate baffle. And the remainder of the at least one battery module is located below the intermediate baffle in the coolant reservoir. Examples may include sealing an intermediate baffle to at least one battery module to sealingly retain coolant in the coolant reservoir.
Resumen de: WO2024194468A1
The invention relates to an electric vehicle with photovoltaic cells (2) and with a circuit arrangement (4) for distributing energy, wherein the photovoltaic cells (2) are arranged on the body (3) of the electric vehicle (1), wherein the electric vehicle (1) comprises a high volt battery (5) and a low volt battery (6), wherein the circuit arrangement (4) comprises a high volt circuit (7) connected to the high volt battery (5), a low volt circuit (8) connected to the low volt battery (6) and at least one PV circuit (9) connected to at least one of the photovoltaic cells (2). It is proposed that the circuit arrangement (4) comprises an intermediate circuit (10), that the low volt circuit (8) is connected to the intermediate circuit (10) via a LV converter arrangement (11), that the high volt circuit (7) is connected to the intermediate circuit (10) via a HV converter arrangement (12) and that the at least one PV circuit (9) is connected to the intermediate circuit (10) via a PV converter arrangement (13).
Resumen de: EP4685897A2
The present disclosure provides a battery cell of the present disclosure including: an electrode assembly including a plurality of electrode plates and a plurality of separators; a pouch including a body portion accommodating the electrode assembly and a sealing portion sealing at least a portion of a circumference of the body portion; an electrode lead electrically connected to the electrode assembly; and a pressure compensation member disposed between the electrode assembly and the body portion, and the electrode assembly includes a uniform thickness region including a center of the electrode assembly, and a low thickness region disposed closer to the electrode lead than to the uniform thickness region, and the pressure compensation member is disposed between the low thickness region and an inner surface of the body portion in a thickness direction of the electrode assembly.
Resumen de: EP4685505A1
Provided is an apparatus and method for estimating a life of a battery. The 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 each of the measured capacities of the battery 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.
Resumen de: EP4685893A1
The present disclosure relates to an electrode assembly manufacturing device and an electrode assembly manufacturing method that may improve the efficiency and economic feasibility of the process by reducing the amount of discarded film in the electrode assembly manufacturing process.An electrode assembly manufacturing device according to the present disclosure may include a separator winding unit from which a separator and a protective film in a wound form may be unwound, a separator providing unit configured to provide the separator unwound from the separator winding unit, an electrode supply unit for supplying electrodes to the separator at regular intervals, and a film providing unit configured to provide the protective film unwound from the separator winding unit to the electrode or the separator.
Resumen de: EP4685858A1
Example embodiments provide a secondary battery manufacturing method. The secondary battery manufacturing method includes: loading coordinate-related inspection data and coordinate-related raw inspection data of an electrode sheet, in which the coordinate-related inspection data includes an image and a coordinate of a part of the electrode sheet, and the coordinate-related raw inspection data includes a judgment on whether the part of the electrode sheet includes a surface defect and the coordinate of the part of the electrode sheet; and monitoring matching between the coordinate-related inspection data and the coordinate-related raw inspection data.
Resumen de: EP4685949A1
Provided are an integrated battery pack and an electric vehicle. The integrated battery pack includes a housing (1), a battery module (2), and multiple support members (3), where an accommodating cavity is provided in the housing (1), the battery module (2) is mounted in the accommodating cavity, a pressure relief valve (26) is disposed on the top of the battery module (2), the multiple support members (3) are spaced apart on the top of the battery module (2) and are sandwiched between the battery module (2) and the housing (1), at least part of the multiple support members (3) cover the pressure relief valve (26), and the at least part of the multiple support members (3) on the pressure relief valve (26) and the battery module (2) enclose a pressure relief channel (323).
Resumen de: EP4685996A1
An apparatus for removing an electrolyte according to the present invention includes an electrolyte removing unit configured to remove the electrolyte remaining on an opening and a beading part of a can, wherein the electrolyte removing unit includes an air injection passage through which air is injected toward the opening and the beading part of the can to introduce the electrolyte remaining on the opening and the beading part of the can into an electrode assembly accommodation part of the can, thereby removing the electrolyte.
Resumen de: EP4685905A1
An all-solid-state secondary battery includes: a cathode layer; an anode layer; and a solid electrolyte layer between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer on at least one surface of the cathode current collector, at least one of the cathode active material layer and the solid electrolyte layer includes a first fibrous sulfide-based solid electrolyte, the anode layer includes an anode current collector and a first anode active material layer on one surface of the anode current collector, and an initial charge capacity (B) of the first anode active material layer is less than about 50% of an initial charge capacity (A) of the cathode active material layer.
Nº publicación: EP4685904A1 28/01/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
Resumen de: EP4685904A1
This all-solid state secondary battery comprises a positive electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, wherein: the positive electrode layer includes a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector, at least one of the positive electrode active material layer and the solid electrolyte layer comprises a first two-dimensional sulfide-based solid electrolyte; the negative electrode layer includes a negative electrode current collector and a first negative electrode active material layer disposed on at least one surface of the negative electrode current collector; and the initial charge capacity (B) of the first negative electrode active material layer is less than about 50% of the initial charge capacity (A) of the positive electrode active material layer.
BOPI
Sede Electrónica
