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1026
resultados
Última actualización
22/10/2026 [10:44:00]
Resultados 75 a 100 de 1026
Resumen de: EP4826791A1
0001 The present invention relates to a positive electrode active material for a lithium secondary battery, which is a lithium transition metal oxide containing excess lithium, excess nickel, and a buffer metal element, wherein the lithium transition metal oxide has a molar ratio of lithium to the lithium transition metal oxide of 1.02 to 1.1 and a molar ratio of nickel to transition metal of 0.75 or more, and wherein the lithium transition metal oxide has a structure in which a lithium layer and a transition metal layer are alternately stacked, and anisotropic contraction and expansion during charging and discharging are suppressed as at least a part of lithium lattice sites in the lithium layer is substituted with the buffer metal element.
Resumen de: WO2025125298A1
The invention relates to a cell comprising: - An anode comprising a lithium metal layer, - An electrolyte comprising at least one lithium salt and at least one solvent, - A cathode comprising a porous composite layer which comprises at least one active material.
Resumen de: EP4826160A2
The present invention provides a coating device comprising: a coater head; an accommodation chamber which is positioned inside the coater head and accommodates a coating solution; an ultrasonic wave generation unit which is positioned inside the coater head and applies ultrasonic waves to the coating solution accommodated in the accommodation chamber; and a coating bar which transfers the coating solution from the accommodation chamber onto at least one surface of a substrate transferred in one direction.
Resumen de: EP4826792A1
0001 The present invention relates to a positive electrode active material for a lithium secondary battery, which is a lithium transition metal oxide containing excess lithium, excess nickel, and a buffer metal element, wherein the lithium transition metal oxide has a molar ratio of lithium to the lithium transition metal oxide of 1.02 to 1.1 and a molar ratio of nickel to transition metal of 0.75 or more, and wherein the lithium transition metal oxide has, as a basic framework, a structure in which a lithium layer and a transition metal layer are alternately stacked, anisotropic contraction and expansion during charging and discharging are suppressed as a part of the buffer metal element in the transition metal layer is substituted into the lithium layer and a part of lithium ions in the lithium layer is substituted into the transition metal layer, and the lithium transition metal oxide has a sphericity of 0.8 or more.
Resumen de: EP4825209A1
0001 An inhalation device for generating an aerosol by heating an aerosol source, comprising: a heating unit (121) for heating the aerosol source; a power supply unit (110) having a battery (1111) as a power source unit, configured to supply power to the heating unit (121); and a case having a power supply accommodating portion for accommodating the power supply unit (110). The power supply unit (110) is configured with a plurality of components fixed together, including an MCU (1161) as a control element for controlling the supply of power from the battery (1111) to the heating unit (121), and the power supply unit is removably arranged in the power supply accommodating portion of the case in a fixed together state.
Resumen de: WO2025125752A1
The invention relates to a method for purifying a battery-electrode active material, comprising the following steps: a) providing an active material to be purified, wherein the active material to be purified comprises a metal oxide, aluminum impurities and copper impurities, b) dissolving the aluminum impurities by immersing the active material to be purified in a soda solution at a concentration selected at an effective value to achieve dissolution of the aluminum impurities, and c) dissolving the copper impurities by immersing the active material to be purified in an ammonia solution having an effective value to achieve dissolution of the copper impurities, whereby a purified active material is obtained. The invention also relates to a method for regenerating a spent battery-electrode active material that employs this purification method.
Resumen de: WO2025125208A1
The present invention relates to a positive electrode active material comprising Li, Ni, one or both of Mn and Co, and O, wherein the surface layer comprises S and a transition metal. It was found during the temperature and pressure treatment that a sulfur layer is formed between the positive electrode material and sulfide solid electrolyte which strongly enhances the ionic conductivity and the electrochemical performance.
Resumen de: EP4826766A1
0001 The present disclosure relates to a negative electrode manufacturing system and a method for manufacturing a negative electrode using the same. Since the negative electrode manufacturing system exhibits magnetism of mutually different polarities in the body of the upper block and the die lip of the lower block of the dual-slot die, it is possible to directly discharge a negative electrode slurry to which a magnetic field has been applied onto a moving current collector. In addition, the negative electrode slurry discharged from the dual-slot die is applied such that the in-plane crystallographic planes of the carbon-based negative electrode active material are oriented at a predetermined angle with respect to the surface of the current collector on which the negative electrode slurry is applied, thereby providing the advantage of achieving a high degree of orientation of the carbon-based negative electrode active material after rolling.
Resumen de: EP4825583A1
0001 A fire-resistant pad of the present disclosure comprises: a first layer comprising a non-combustible material; a second layer comprising a carbonate-based flame retardant and a silicone resin; and a third layer comprising a silicone-aerogel composite containing a silicone resin and an aerogel, wherein the silicone-aerogel composite contains an aerogel in an amount of 0.5 wt.% or more and 40 wt.% or less and a silicone in an amount of 60 wt.% or more and 99.5 wt.% or less, based on the total weight of the third layer, and each of the first layer, the second layer, and the third layer is laminated in at least one or more layers.
Resumen de: EP4826842A1
0001 A heat exchange member, a case, a battery, and an electric device. The heat exchange member (20) is used for a case (100) for a battery (1000), and comprises: a heat exchange plate (21); a back plate (22) provided on one side of the heat exchange plate (21) in a first direction (Z) and connected to the heat exchange plate (21), the first direction (Z) being the thickness direction of the heat exchange plate (21); and heat exchange tubes (23) provided between the heat exchange plate (21) and the back plate (22) and fixedly connected to the heat exchange plate (21) and/or the back plate (22).
Resumen de: EP4825227A1
The power supply unit (110) of the inhalation device (100) comprises: a power source unit (111), and a control unit (116) configured to control at least one of charging and discharging of the power supply unit (111). The power source unit (111) is replaceably and removably mounted in the power supply unit (110). The control unit (116) is capable of performing an identification process to identify the type of power source unit (111) mounted in the power supply unit (110).
Resumen de: WO2025125818A1
The invention provides a method of separating an electrode material from an electrode, the method comprising the steps of: a. Providing an electrode comprising an electrode material adhered to a 5 current collector; b. Adhering the electrode material to a frozen solid; c. Delaminating the current collector from the electrode material when the electrode material is adhered to the frozen solid to provide a free electrode material and a free current collector; and 10 d. Recovering the free electrode material.
Resumen de: WO2025125012A1
Process for making a coated cathode active material for lithium-ion batteries wherein said cath- ode active material comprises lithium, nickel and at least one of cobalt and manganese with at least 50 mol-% being nickel, referring to metals other than lithium, wherein said process com- prises the steps of: (a) providing an aqueous solution of chlorides of nickel and of at least one of cobalt and man- ganese in the targeted ratio, (b) performing a pyrolysis of the aqueous solution of step (a) in a flame fed by natural gas, methane, or hydrogen, thereby obtaining a precursor of a cathode active material, (c) adding a source of lithium and, optionally, at least one dopant selected from oxides and (oxy)hydroxides of Ti, Zr, Nb, Ta, Al, Y, Sr, Ba, W, Ce or Mo to the precursor from step (b), (d) performing a thermal treatment at a temperature in the range of from 700 to 1100°C, (e) performing a coating on the material resulting from step (d) with at least one oxide or (oxy)hydroxide of Mn, Co, Ti, Zr, Nb, Ta, Al, Y, Sr, Ba, B, W or Ce, followed by another thermal treatment at a temperature in the range of from 200°C to 800°C.
Resumen de: WO2025125331A1
The present invention relates to a process for the production of a LiHSO4 solution comprising the following steps: (a) providing a lithium solution comprising H+ cations, Li+ cations, SO4 2- anions, HSO4 - anions, and water, wherein the molar ratio between the hydrogen cations and lithium cations in the lithium solution ranges from about 0.3 to 2; wherein step (a) comprises the following steps: (a1) providing a leachate solution; and (a2) adding sulphuric acid (H2SO4), and optionally water, to obtain the lithium solution; (b) optionally, removing insoluble impurities and/or organic impurities from the lithium solution; and (c) proceeding with nanofiltration (NF) of the lithium solution to obtain a lithium hydrogen sulphate solution. The present invention further relates to processes for the production of lithium sulphate solutions and/or lithium carbonate from the lithium sulphate solution.
Resumen de: WO2025125540A1
The present invention relates to particle for a positive electrode active material comprising lithium, nickel, cobalt, aluminium, oxygen and manganese having a ratio Coedge / Cocenter ≥ 1.1 and a ratio Aledge / Alcenter ≥ 20.0, wherein Coedge is an atomic ratio of Co to the total amount of Ni, Co, and Mn at an edge of the particle, Cocenter is an atomic ratio of Co to the total amount of Ni, Co, and Mn at a center of the particle, Aledge is an atomic ratio of Al to the total amount of Ni, Co, and Mn at an edge of the particle, Alcenter is an atomic ratio of Al to the total amount of Ni, Co, and Mn at a center of the particle, and wherein Coedge, Cocenter, Aledge, and Alcenter are measured by cross-sectional SEM-EDS..
Resumen de: EP4826886A1
A battery module according to an embodiment of the present invention includes a battery cell stack in which a plurality of battery cells are stacked, a busbar frame formed on a front surface and a rear surface of the battery cell stack, respectively, a connecting portion connected to an upper portion of the battery cell stack and configured to interconnect the busbar frames formed on the front surface and the rear surface, a first connector connected to both side end portions of the connecting portion, a second connector fixed to the busbar frame, and coupled to the first connector, and a dam portion disposed in a lower portion of the second connector and fixed to the busbar frame.
Resumen de: EP4825519A1
Provided in the present application are a battery welding apparatus and a battery welding method. The battery welding apparatus includes a conveyor line, a cell feeding device, a connecting piece feeding device, and a welding device. The conveyor line includes a plurality of carriers arranged in a conveying direction of the conveyor line. The cell feeding device includes at least two cell feeding mechanisms; the at least two cell feeding mechanisms are respectively configured to feed at least two battery cell sets into at least two target carriers of the conveyor line, and each of the battery cell sets includes at least two cells. The connecting piece feeding device is configured to feed connecting pieces into the at least two target carriers. The welding device is arranged on a lateral side of the conveyor line. The conveyor line is movably arranged to sequentially convey the at least two target carriers to the welding device for welding. The welding device is configured to weld the connecting pieces and the at least two cells in the target carrier. The battery welding apparatus of the present application improves the welding efficiency.
Resumen de: EP4826902A1
A rechargeable battery includes: an electrode assembly; a case accommodating the electrode assembly and including an opening; a cap plate covering the opening of the case and including an electrolyte inlet; and a blocking member including a ball adjacent to the electrolyte inlet on one surface of the cap plate and configured to open and close the electrolyte inlet, and a valve connected to the ball.
Resumen de: EP4826815A1
A battery pack according to an embodiment of the present disclosure comprise: first and second battery cell stacks formed by stacking a plurality of battery cells; a pack case configured to house the first and second battery cell stacks and to be opened on both sides; end plates disposed on the opened both sides of the pack case; first and second pressing plates located inside the pack case and disposed between the first battery cell stack and the second battery cell stack; and a pressing unit disposed between the first and second pressing plates to apply pressure to the first and second battery cell stacks.
Resumen de: EP4826895A1
Embodiments of the present application provide a battery cell, a battery and an electrical apparatus, wherein the battery cell comprises: a casing (1), comprising a first wall (12), wherein the first wall (12) is provided with a pressure relief component (2); an electrode assembly (3) arranged in the casing (1), wherein the electrode assembly (3) comprises an electrode body (31) and a first tab (32), and the first tab (32) is led out from one end of the electrode body (31); and a first current collector (4), configured to electrically connect the first tab (32) and the casing (1), wherein the first current collector (4) is at least partially located between the first tab (32) and the pressure relief component (2), the first current collector (4) is provided with at least one ventilation part (41) and at least one guide part (42), the ventilation part (41) penetrates through the first current collector (4) in the thickness direction of the first wall (12), and the guide part (42) is arranged in the peripheral area of the ventilation part (41).
Resumen de: EP4826349A1
0001 The present application provides a battery airtightness testing system and method. The battery airtightness testing system comprises an initial test module and at least two re-test modules. The initial test module is configured to perform a first airtightness test on a plurality of incoming battery packs; each incoming battery pack comprises a plurality of batteries; and the battery packs tested by the initial test module include a first compliant battery pack and a first non-compliant battery pack. The re-test module comprises a buffer platform, a re-test chamber, and a re-test manipulator; the buffer platform is configured to receive and store the first non-compliant battery pack; the re-test manipulator is configured to grab all batteries in the first non-compliant battery pack buffered in the buffer platform into the re-test chamber; the re-test chamber is configured to perform an independent second airtightness test on each battery in the first non-compliant battery pack; and the batteries tested by the re-test chamber include a second compliant battery and a second non-compliant battery.
Resumen de: EP4826328A1
0001 Disclosed are a secondary battery measurement apparatus for measuring the width and thickness of a secondary battery and a secondary battery measurement method including the same, and more particularly a secondary battery measurement apparatus including a seating die configured to allow the secondary battery to be seated thereon, a pair of vertical frames located on an upper surface of the seating die so as to extend a predetermined length in a height direction while being spaced apart from each other by a predetermined distance, a horizontal frame extending a predetermined length, the horizontal frame being connected to each of the pair of vertical frames, a pair of width measurement sensors provided at side surfaces of the pair of vertical frames, respectively, and a thickness measurement sensor provided at the horizontal frame, and a secondary battery measurement method including the same.
Resumen de: EP4826844A1
0001 The present application belongs to the technical field of battery production. Provided are a battery apparatus, a refrigerant heat exchange apparatus and an electrical apparatus. The battery apparatus comprises a box body assembly, a battery cell assembly and a refrigerant heat-exchange component, wherein the box body assembly has an accommodating cavity; the battery cell assembly is arranged in the accommodating cavity; the battery cell assembly comprises a plurality of battery cell groups, each battery cell group comprising a plurality of battery cells stacked in a first direction, and the plurality of battery cell groups being arranged side by side in a second direction, the refrigerant heat-exchange component has a heat-exchange surface, the refrigerant heat-exchange component comprises a plurality of main heat-exchange flow channels, which are arranged in parallel in the second direction, each main heat-exchange flow channel comprises a main flow diversion node portion, a main flow confluence node portion and a main region flow channel portion; each main region flow channel portion comprises heat-exchange sub-flow channels connected in parallel; the projection region of each battery cell group on the heat-exchange surface covers at least one main heat-exchange flow channel; and the second direction is perpendicular to the first direction. The present application aims to improve the temperature equalization capability of the refrigerant heat-exchange component.
Resumen de: EP4826795A1
0001 The present application relates to the technical field of lithium batteries, and in particular to a preparation method for a positive electrode material, a positive electrode material, a positive electrode sheet, a battery, and an electric device. The method of the present application comprises: mixing a nitrate salt and a precursor in a solvent, and roasting to obtain a positive electrode material, wherein the precursor comprises LiFe<(1-y)>M
Nº publicación: EP4826860A1 21/10/2026
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Resumen de: EP4826860A1
0001 The embodiments of the present application provide a battery cell, a battery, and an electrical apparatus. The battery cell comprises a housing, a top cover, and an electrode assembly. The housing is provided with an accommodating space and an opening. The top cover seals and covers the opening. The electrode assembly is arranged within the accommodating space. The top cover comprises a cover body, a connecting side wall and a groove formed between the cover body and the connecting side wall, and an end portion of the housing extends into the groove and is connected with the top cover. When the electrode assembly expands cyclically and produces gas during charging and discharging, the housing deforms outwards when force is produced at the connection between the housing and the top cover, and the connecting side wall limits and supports the housing, so as to limit further outward deformation of the housing to a certain extent, thereby reducing the risk of fatigue cracking of the connecting structure between the housing and the top cover, improving the problem of failure of the connecting structure between the housing and the top cover, and increasing the service life.
BOPI
Sede Electrónica
