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1563
resultados
Última actualización
19/12/2025 [07:14:00]
Resultados 250 a 275 de 1563
Resumen de: EP4664601A1
This application provides a battery and a charging method thereof, a battery management system, and an electric device, capable of improving charging performance of the battery. The battery includes at least one battery cell and a battery management system. A positive electrode active material of the battery cell includes LiMPO<sub>4</sub>, and M includes element Mn and element Fe. The battery management system is configured to: when an SOC of the battery is less than or equal to a preset SOC threshold, control the battery to charge based on a first charging current so as to heat the battery during a charging process; and when the SOC of the battery is greater than the SOC threshold, control the battery to charge based on a second charging current, where the first charging current is greater than the second charging current.
Resumen de: EP4664582A1
A battery cell, a battery, and an electric device, relating to the technical field of batteries. The battery cell comprises a housing assembly, an electrode assembly, and a current collector assembly. The housing assembly comprises an electrode lead-out portion for inputting or outputting electric energy. The electrode assembly is accommodated in the housing assembly. The electrode assembly comprises a main body and a tab, and the tab is provided on the main body. The materials of the tab and the electrode lead-out portion are different. The current collector assembly comprises an additional portion of the same material as the electrode lead-out portion and a main body portion of the same material as the tab. The additional portion is connected to the main body portion. The additional portion is connected to the electrode lead-out portion in a welded manner. The main body portion is connected to the tab in a welded manner. By configuring the additional portion and the electrode lead-out portion to be made of the same material and welded to each other, phenomena such as different melting points and coefficients of thermal expansion caused by welding of the current collector assembly and the electrode lead-out portion of different materials are alleviated, thereby reducing welding cracks between the current collector assembly and the electrode lead-out portion, and reducing the risk of electrolyte leakage in the battery cell.
Resumen de: EP4664563A1
Provided is a binder composition for an electrical storage device that can produce an electrical storage device electrode excellent in surface state, adhesiveness, and ion conductivity, and can improve the cycle life characteristics of an electrical storage device.The binder composition for an electrical storage device according to the present invention includes: a polymer (A); and 30 ppm to 30,000 ppm of an emulsifier (B) with respect to a total mass of the polymer (A). When a total of repeating units in the polymer (A) is defined as 100 mass%, the polymer (A) contains 1 mass% to 50 mass% of a repeating unit (a1) derived from an aromatic vinyl compound, and 20 mass% to 75 mass% of a repeating unit (a2) derived from an unsaturated carboxylic acid ester.
Resumen de: EP4663817A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni-W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and a number density of pinholes on a surface of the Ni-W alloy layer is 4.0 /cm<sup>2</sup> or less. Preferably, an average W concentration in the Ni-W alloy layer is 10 to 45 mass%. Preferably, an attached amount of Ni included in the Ni-containing layer and the Ni-W alloy layer is 1.8 to 35.6 g/m<sup>2</sup>.
Resumen de: EP4663816A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni-W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and the surface-treated steel sheet includes a W depletion layer in a range from a surface of the Ni-W alloy layer to a depth of 10 nm. In a method for manufacturing a surface-treated steel sheet according to another aspect of the present invention, an atmospheric dew point in annealing is set to -25 to 5°C, a soaking time in the annealing is set to 10 to 180 seconds, and a maximum temperature in the annealing is set to 630 to 860°C.
Resumen de: EP4664560A1
To provide an active material and a solid electrolyte capable of improving the performance of lithium sulfur batteries. An active material comprising: a compound; andan electroconductive material, wherein the compound contains a lithium (Li) element, a sulfur (S) element, a phosphorus (P) element, an iron (Fe) element, and a halogen (X) element, the compound has a peak at positions 2θ = 27.1° ± 0.5° and 31.4° ± 0.5° in an X-ray diffraction pattern measured with an X-ray diffractometer using Cu Kα1 radiation, and the active material satisfies relationship (1), (2), (3) and (4) shown below: (1) 5.8 ≤ Li/(Fe+P) ≤ 10.0, (2) 0.1 ≤ X/(Fe+P) ≤ 1.4, (3) 0.2 ≤ X+Fe ≤ 2.0, (4) 0.0 < Fe/(Fe+P) < 1.0, wherein (1) defines a molar ratio of the lithium (Li) element to a sum of the iron (Fe) element and the phosphorus (P) element, (2) defines a molar ratio of the halogen (X) element to the sum of the iron (Fe) element and the phosphorus (P) element, (3) defines a sum of mole numbers of the halogen (X) element and the iron (Fe) element, and (4) defines a molar ratio of the iron (Fe) element to the sum of the iron (Fe) element and the phosphorus (P) element.
Resumen de: EP4664669A1
The present application provides a battery cell (20), a battery (100), and an electrical device. The battery cell (20) includes a shell (21), an electrode assembly (22), a first insulating protective layer (23), and a second insulating protective layer (24). The first insulating protective layer (23) is disposed on an inner wall of the shell (21), and the second insulating protective layer (24) is configured to envelop at least a portion of the electrode assembly (22). The battery cell (20) provided in the embodiments of the present application uses the first insulating protective layer (23) and the second insulating protective layer (24) to separate the shell (21) from the electrode assembly (22), thereby increasing the creepage distance between the shell (21) and the electrode assembly (22). This can achieve the purpose of improving the breakdown voltage resistance between the shell (21) and the electrode assembly (22), thereby effectively enhancing the high-voltage breakdown resistance of the shell (21), and consequently reducing the probability of combustion or explosion of the battery cell (20).
Resumen de: EP4663583A1
The invention discloses a battery formation device and method. The battery formation device comprises a formation three-dimensional storage and further comprises a battery placing manipulator, a battery taking manipulator, a button cup taking manipulator, a capsule conveying circulating drawstring, a first capsule transfer conveying line and a first capsule conveying drawstring. The battery placing manipulator, the battery taking manipulator and the button cup taking manipulator are all arranged on a formation frame, the battery placing manipulator, the battery taking manipulator and the button cup taking manipulator are all capable of moving forth and back relative to the formation frame, the battery placing manipulator and the battery taking manipulator are arranged side by side left and right, the button cup taking manipulator is located behind the battery placing manipulator and the battery taking manipulator, the capsule conveying circulating drawstring penetrates through the formation frame and is located below the button cup taking manipulator, and the formation three-dimensional storage is arranged behind the formation frame. The formation efficiency is improved, and the labor cost and the labor intensity are reduced.
Resumen de: EP4664622A1
A cover plate (100), a battery (600) and an electronic device is provided. The cover plate (100) includes an integrally formed non-structurally fragile portion (102) and a non-structurally fragile portion (101). The structural strength of the non-structurally fragile portion (101) is lower than the structural strength of the non-structurally fragile portion (102). The non-structurally fragile portion (101) is configured to be destroyed when the battery (600) releases internal pressure. At least part of the outer side of the non-structurally fragile portion (101) is covered with a phosphorus-containing nickel plating layer (103).
Resumen de: EP4664639A1
Provided are a CTP battery pack and a vehicle having the CTP battery pack. The CTP battery pack includes a housing (1) and at least one battery cell module (2). The housing (1) has at least one first accommodating cavity (15). Each battery cell module (2) is disposed in one first accommodating cavity (15) of the at least one first accommodating cavity (15). The at least one first accommodating cavity (15) is filled with foam (3).
Resumen de: EP4663607A1
The present application provides a precursor material and a preparation method therefor, a positive electrode material, a secondary battery, and a power consuming apparatus. The precursor material has a chemical formula of NixCoyMnzMa(OH)2, where element M includes at least one of Zr, Y, Al, Ti, W, Sr, Ta, Mo, Sb, Nb, Na, K, Ca, Ce, and La, 0.55≤x<1.0, 0≤y<0.45, 0≤z<0.45, 0
Resumen de: EP4664542A1
The present application provides a positive electrode active material composition, a positive electrode plate, a battery, and an electrical apparatus. The positive electrode active material composition comprises a first positive electrode active material and a second positive electrode active material having different crystal form from the first positive electrode active material. The second positive electrode active material comprises a phosphate material, and the positive electrode active material composition satisfies: Dv10(1)/Dv50(2)>1, Dv50(1)/Dv50(2)≥1.4 and -2.0≤1 - (ρ2×W2)/(ρ1×W1)≤0.98. Above parameters are as defined herein, respectively.
Resumen de: EP4664581A1
Provided in the present application are a battery cell, a battery, and an electrical apparatus. The battery cell comprises an electrode assembly which comprises an electrode plate and a separator. The electrode plate comprises a current collector and a film layer which is disposed on at least one surface of the current collector and contains an active material and a liquid absorption polymer, and the electrode plate satisfies: v/λ≥1.2, wherein v represents the liquid absorption rate of the film layer and has a unit of mg/s, and λ represents the porosity of the film layer. The separator comprises a liquid-retaining polymer, and the separator satisfies: (m2-M)/(m1-M) ≥ 25%, wherein M represents the mass of the separator before the separator absorbs an electrolyte solution, and has a unit of g; m1 represents the mass of the separator weighed at ambient pressure after the separator is soaked in the electrolyte solution for 2 h, and has a unit of g; and m2 represents the mass of the separator weighed at a pressure of 10000 N at ambient pressure after the separator is soaked in the electrolyte solution for 2 h, and has a unit of g.
Resumen de: EP4664689A1
A rotary connector in which relative movement between a rotary spacer and an outer peripheral electrode or an inner peripheral electrode is favorable is provided. A rotary connector 1 includes an annular outer peripheral electrode 30, an inner peripheral electrode 2 inserted into the outer peripheral electrode 30 and arranged so as to be turnable relatively to the outer peripheral electrode 30, a plurality of roller current collectors 4 arranged in the circumferential direction between the outer peripheral electrode 30 and the inner peripheral electrode 2, the roller current collectors being in contact with the outer peripheral electrode 30 and the inner peripheral electrode 2, rotary spacers 5 each of which is arranged between the roller current collectors 4, and a pair of guide plates 31, 32 that support the rotary spacers 5 on both sides in the axial direction, and an orbital path of the rotary spacers 5 and an orbital path of the roller current collectors 4 are different from each other.
Resumen de: EP4664594A1
A nonaqueous electrolyte solution capable of improving a low-temperature (-30°C) output characteristic after a high-temperature (70°C) storage test (resistance after high-temperature storage) and a post-overdischarge discharge capacity retention rate after a high-temperature (70°C) storage test in a well-balanced manner and a nonaqueous electrolyte solution battery are provided. A nonaqueous electrolyte solution containing (1-1) a compound represented by the general formula 1a described in the specification and (I-2) at least one selected from the group consisting of a compound represented by the general formula 1b and a compound represented by the general formula 1b' in which a (I-2) content in the nonaqueous electrolyte solution is 10 to 25000 ppm by mass.
Resumen de: EP4664538A1
Disclosed is a negative electrode mixture constituting a negative electrode layer, the negative electrode mixture containing: particles of a solid electrolyte; and particles of an electroconductive material which are disposed on a surface of the particles of the solid electrolyte. Preferably, the solid electrolyte includes a crystal phase having an argyrodite-type crystal structure. Preferably, the electroconductive material is a carbon material or a metal material. Also preferable is a slurry containing: the negative electrode mixture; a binder; and a solvent, wherein the slurry has a viscosity of from 0.05 to 3 Pa·s at 25°C and at a shear rate of 10 (1/s).
Resumen de: EP4664548A1
Disclosed is a negative electrode including a negative electrode charge collector, and a negative electrode layer that is disposed on the negative electrode charge collector and contains solid electrolyte particles. The value of (D<sub>90</sub>-D<sub>10</sub>)/D<sub>50</sub> is less than 10.0, where D<sub>10</sub>, D<sub>50</sub>, and D<sub>90</sub> are defined as cumulative volume particle diameters of the solid electrolyte particles at cumulative volumes of 10 vol%, 50 vol%, and 90 vol% respectively, as measured according to a laser diffraction/scattering particle size distribution measurement method. The negative electrode contains no negative electrode active material. Preferably, a cumulative volume particle diameter D<sub>95</sub> of the solid electrolyte particles at a cumulative volume of 95 vol% as measured according to the laser diffraction/scattering particle size distribution measurement method is less than 65 µm.
Resumen de: EP4664660A1
The present disclosure relates to a secondary battery, and a secondary battery according to one aspect of the present disclosure may include an electrode; an electrode tab including an extension portion extending outward from the electrode and a tab coupling portion provided on one side of the extension portion in the extension direction; an electrode lead coupled to the tab coupling portion and capable of electrically connecting the electrode to the outside; and an auxiliary connecting member coupled to the electrode lead and the extension portion, respectively.
Resumen de: EP4663670A1
Proposed is a copolymer including a main chain including a first monomer unit based on styrene, a second monomer unit containing a hydroxy group and having 4 or more and 7 or fewer carbon atoms, and a third monomer unit containing a double bond and having 4 or more and 7 or fewer carbon atoms, wherein the second monomer unit of the main chain includes a grafted polymer chain. In addition, proposed are a negative electrode slurry, a negative electrode, and a secondary battery, each including the copolymer.
Resumen de: EP4663664A1
Disclosed are a carboxylmethyl cellulose lithium salt, a method of manufacturing the carboxylmethyl cellulose lithium salt, a negative electrode including the carboxylmethyl cellulose lithium salt, and a rechargeable lithium battery. The method of manufacturing a carboxylmethyl cellulose lithium salt includes performing an alkalization reaction of cellulose and lithium hydroxide, performing an etherification reaction with a halogen-containing acetic acid or a salt thereof, wherein an amine derivative is added during the alkalization reaction or the etherification reaction, and an amount of the halogen-containing acetic acid or a salt thereof added relative to the lithium hydroxide is controlled to a given amount.
Resumen de: EP4664629A1
A battery (10) has a housing (20), a cell pack (30) supported within the housing (20), and a lid (40) configured to close an open end (21) of the housing (20). A first terminal (71) is supported by the lid (40). A first busbar (61) is configured to electrically couple the cell pack (30) to the first terminal (71). A first electrical component (83, 84, 102) is supported by the lid (40) and electrically coupled between the first busbar (61) and the first terminal (71).
Resumen de: EP4664551A1
The present invention relates to a method for manufacturing an electrode for a lithium secondary battery, the method including the steps of: preparing a transfer laminate including a lithium metal layer, a release layer, and a base material layer; and transferring the lithium metal layer and the release layer to at least one surface of an electrode active material layer such that the lithium metal layer comes into contact with the electrode active material layer, in which at least one of the lithium metal layer and the release layer transferred to at least one surface of the electrode active material layer includes two or more holes, and the holes have a shortest distance between adjacent holes that satisfies a predetermined distance, enabling lithium byproducts to be reduced; an electrode manufactured by the method; and a lithium secondary battery including the electrode.
Resumen de: EP4664572A1
A battery cell, a battery, and an electric device. The battery cell comprises a casing, a pressure relief structure and an electrode assembly, wherein the casing is provided with a first wall; the pressure relief structure is arranged on the first wall; and the electrode assembly is arranged in the casing and comprises a plurality of electrode sheet layers stacked in a first direction, the plurality of electrode sheet layers including cathode electrode sheet layers and anode electrode sheet layers, each electrode sheet layer comprising an electrode sheet body, a first active material layer and a second active material layer, the first active material layer and the second active material layer being respectively arranged on two sides of the thickness of the electrode sheet body, at least one electrode sheet layer being constructed as a first preset electrode sheet layer, the distance between the first active material layer of the first preset electrode sheet layer and the first wall being greater than the distance between the second active material layer of the first preset electrode sheet layer and the first wall, and the first direction being parallel to a plane where the first wall is located.
Resumen de: EP4664607A1
There is described a battery module comprising: an array of battery cells electrically coupled to provide electrical power to a load; a cell space housing the array of battery cells, the cell space arranged to receive flow of a coolant fluid past the battery cells; the battery cells mounted on a base of the cell space, the base comprising one or more flow paths for the coolant fluid; one or more inlets to receive the coolant flow into either the cell space or the base; one or more outlets to deliver the coolant flow out of the other of the cell space or the base; and one or more fluid flow couplings between the cell space and the base to direct flow of coolant fluid between the base and the cell space. The inlets, outlets and fluid couplings may be arranged to provide counterflow cooling such that flow of coolant in the base is in the opposite direction to the flow of coolant in the cell space.
Nº publicación: EP4664575A1 17/12/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4664575A1
The present invention relates to an electrode assembly manufacturing plate, which includes a support plate, a sub-plate provided on one surface of the support plate, and a distance control unit provided on the support plate and configured to push a part of an opposing surface to a surface of the sub-plate, which is opposite to the support plate, from the support plate so that a distance from a part of the opposing surface to the support plate is different from a distance from the remaining portion to the support plate, an electrode assembly manufacturing apparatus including the same, and an electrode assembly manufacturing method.
BOPI
Sede Electrónica
