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1358
results.
Updated on
24/12/2025 [07:24:00]
Results 450 to 475 of 1358
Absstract of: EP4664657A1
A battery cell, a battery and an electric apparatus, which belong to the technical field of batteries. The battery cell comprises: a casing assembly and a battery cell assembly, wherein the casing assembly comprises a casing and a first terminal arranged on the casing; and the battery cell assembly comprises an active-material coated portion and a conductive portion, the active-material coated portion being accommodated in the casing, the conductive portion being used for electrically connecting to the active-material coated portion and the first terminal, the first terminal being provided with an accommodating portion, and the conductive portion being at least partially accommodated in the accommodating portion. With regard to the battery cell, a conductive portion is at least partially accommodated in an accommodating portion, such that the space occupied by the conductive portion in a casing is reduced, which is conducive to improving the energy density of the battery cell.
Absstract of: EP4663602A2
An object of the present invention is to provide a method for recovering lithium iron phosphate powder, which is a positive electrode material, in economical and eco-friendly manner from a waste lithium-ion secondary battery using lithium iron phosphate as a positive electrode material, and to provide recycled lithium iron phosphate powder obtainable therefrom. In order to achieve the above-described object, a method for recycling a waste lithium-ion secondary battery according to the present invention includes (a) loading an object to be heat-treated into a heat-treatment furnace, the object being at least a part of a waste lithium-ion secondary battery in which lithium iron phosphate powder is a positive electrode material, and including the positive electrode material, (b) increasing the temperature inside the heat-treatment furnace to a range of 200 °C to 400 °C, (c) maintaining the increased temperature to heat treat the object to be heat-treated, and (d) discharging first powder produced after the completion of the heat treatment, wherein the first powder includes recycled lithium iron phosphate powder.
Absstract of: WO2024165410A1
The present invention relates to an electrode-forming composition comprising a tetrafluoroethylene (TFE) (co)polymer having a specific surface area of 4 m2/g or less, preferably 2 m2/g or less, measured pursuant to the method ISO9277, at least one electroactive material, optionally at least one solid ionic conducting inorganic material and optionally at least one processing aid; to a separator- forming composition comprising said TFE (co)polymer, at least one solid ionic conducting inorganic material, and optionally at least one processing aid; to a process for manufacturing an electrode or a separator by using the compositions, and to an electrode or a separator obtainable by the process. The present invention also relates to a process for manufacturing a gel polymer electrode; to a gel polymer electrode obtainable by the process; to a secondary battery comprising an electrode, a separator or a gel polymer electrode according to the present invention, and to use of the TFE (co)polymer in a binder composition for a secondary battery.
Absstract of: EP4664636A1
Disclosed are a battery (100) and a vehicle (1000). The battery (100) comprises: a battery box (1) and at least one battery cell (20). The battery box (1) comprises a box body (11) and a top cover (12), the top cover (12) is arranged on the top of the box body (11), and an accommodation cavity (15) is defined between the top cover (12) and the box body (11). All the battery cells (20) are arranged in the accommodation cavity (15), and the upper part of at least some of the battery cells (20) is fixedly connected to the top cover (12).
Absstract of: EP4664615A1
In a secondary battery, a first electrode assembly (201) and a second electrode assembly (202) are overlapped with each other. A first electrode tab (250) and a third electrode tab (280) each connected to a first electrode (240) and respectively included in the first electrode assembly (201) and the second electrode assembly (202) are joined to a first current collector (431). The first current collector (431) is constituted of a first stack in which a plurality of metal plates (4300) are stacked. A second electrode (210) of each of the first electrode assembly (201) and the second electrode assembly (202) has a polarity different from that of the first electrode (240). A second electrode tab (220) and a fourth electrode tab (270) each connected to the second electrode (210) are joined to a second current collector (410).
Absstract of: EP4664543A2
A positive electrode active material comprises a first active material and a second active material having an average particle size (D50) smaller than an average particle size (D50) of the first active material. The first active material is a lithium-(transition metal) composite oxide containing Ni at 75 mol% or more and Ti at 0.5 to 2.8 mol% relative to a total number of moles of metallic element except Li. The second active material is a lithium-(transition metal) composite oxide containing Ni at 75 mol% or more relative to a total number of moles of metallic element except Li. A content of Ti in the second active material is 0.1 mol% or less relative to the total number of moles of metallic element except Li. Ni disorder of the first active material is from 2.1 to 2.6%, and Ni disorder of the second active material is 2.0% or less.
Absstract of: EP4664547A1
An anode active material for a sodium ion energy storage device with improved volumetric capacity, capacity retention, and coulombic efficiency and the method thereof is disclosed. The anode active material comprises an alloying element. The anode active material may further comprise a carbon active material. The alloying element may be selected from phosphorus (P), germanium (Ge), tin (Sn), antimony (Sb), lead (Pb), and bismuth (Bi). The anode comprising the anode active material shows improved capacity retention.
Absstract of: EP4663789A1
The present disclosure provides an aluminum alloy plate for a case (610) of a secondary battery. The aluminum alloy plate includes 1.25 wt% to 1.5 wt% of manganese (Mn), and 0.6 wt% to 0.8 wt% of magnesium (Mg).
Absstract of: EP4664540A1
A composition for coating a negative electrode dam according to one embodiment of the present disclosure includes a cellulose-based compound.In the composition for coating a negative electrode dam according to one embodiment of the present disclosure, the surface tension is high to the level of a negative electrode slurry, thereby suppressing the occurrence of fat-edge of the negative electrode. Furthermore, the dam coating layer formed from the composition for coating a negative electrode dam shortens the sliding length of the negative electrode active material layer, thereby reducing the risk of NP-ratio inversion of the lithium secondary battery.
Absstract of: EP4664539A1
A composition for coating a negative electrode dam according to one embodiment of the present disclosure is in surface contact with an end of the negative electrode active material layer and includes a hydrophobic powder, a cellulose-based compound, a rubber-based binder, and inorganic particles.The composition for coating a negative electrode dam has excellent surface tension and adhesion, thereby inhibiting the occurrence of a fat-edge of the negative electrode, and the dam coating layer formed from the composition for coating a negative electrode dam has the effect of reducing the sliding length of the negative electrode active material layer.
Absstract of: EP4664671A1
The present disclosure relates to a pellet for electrolyte injection configured to connect between an electrolyte supply device for supplying an electrolyte and an open portion formed on one side of a housing of a battery, the pellet including: a hopper having a hollow structure; and a sealing member including a hopper coupling portion coupled to the hopper and spaced apart from the housing and a battery sealing portion configured to seal the open portion and at least partially spaced apart from the hopper coupling portion.
Absstract of: EP4664590A1
This application relates to an electrolyte and an electrochemical device. Specifically, this application provides an electrolyte including a compound of Formula I-A and a compound of Formula I-B:andwhere based on a mass of the electrolyte,a percentage of the compound of Formula I-A and a percentage of the compound of Formula I-B are each in a range of 0.12% to 5.1%. The electrolyte of this application is conducive to improving the high-temperature storage performance, safety performance, and low-temperature discharge performance of the electrochemical device.
Absstract of: EP4664650A1
The electrochemical cell (10) comprises at least an electrochemical set (12) comprising:- a first electrode (14) having a first polarity and a second electrode (16) having a second polarity opposed to the first polarity;- a separator (17) interposed between the first electrode (14) and the second electrode (16) and comprising at least a bar (40) made up of a separator material;The at least one bar (40) is attached to the first electrode (14) and/or to the second electrode (16).
Absstract of: US2025364586A1
A battery including a housing; an electrolyte disposed in the housing; and a first electrode, wherein a porosity of the first electrode varies across a surface of the first electrode. A method includes obtaining a first electrode having a first predetermined porosity, obtaining a second electrode having a second predetermined porosity, wherein the second predetermined porosity is different than the first predetermined porosity, and laminating the first electrode with the second electrode, thereby to provide for an interface free electrode structure with a porosity gradient.
Absstract of: EP4663469A1
A vehicle includes a battery and a computer system that obtains battery state information related to a state of the battery from the battery, at least partially processes a calculation related to energy management of the vehicle by using the battery state information, and provides the battery with result information obtained by processing the calculation.
Absstract of: EP4663285A1
A slurry homogenization process and a use thereof, including the following steps: performing a first pre-mixing on a main material, a first conductive agent, and a binder to obtain a first mixture, while performing a second mixing on a first solvent independently; adding the first mixture into the first solvent, and sequentially performing a second pre-mixing and a first dispersing to obtain a third mixture; and adding a conductive slurry into the third mixture, sequentially performing a third pre-mixing and a second dispersing, and defoaming and cooling to obtain a homogenized slurry.
Absstract of: CN120677572A
A non-aqueous electrochemical cell is provided. The battery includes a housing including an internal space extending to an open end, and a positive electrode, a negative electrode, a separator, and an electrolyte disposed within the internal space of the housing. A sealing member is disposed adjacent the open end of the housing, where the sealing member includes a polymer composition that includes a polyarylene sulfide and a bifunctional polymer that includes an epoxy functional group and a (meth) acrylate functional group. The epoxy content of the polymer composition is from about 0.3 parts by weight to about 2 parts by weight per 100 parts by weight of the polyarylene sulfide in the polymer composition.
Absstract of: AU2023428801A1
A vehicle battery jump starter with air pump device includes a vehicle battery jump starter and an air pump disposed within a cover. An internal battery is also disposed within the cover and connected to the vehicle battery jump starter and the air pump. A port is provided so as to provide connection to the device from an external vehicle battery. The air pump is configured such that it is powered by the external battery in a first mode of operation.
Absstract of: EP4664564A1
The present application may provide an electrode, a battery cell, a battery module, and a battery pack comprising the electrode, and the electrode having a current collector and an active material layer located on at least one side of the current collector, wherein the active material layer comprises an active material, a binder and a conductive polymer, wherein the conductive polymer comprises a conductive component and an ionized polymer component, wherein the binder comprises a resin A having an SP<sub>d</sub> of 30 (MPa)<sup>1/2</sup> or less according to the following equation 1, wherein the polymer component comprises a resin B having an SP<sub>d</sub> of 30 (MPa)<sup>1/2</sup> or less according to the following equation 1: Equation 1 SP<sub>d</sub> = SP<sub>W</sub> - SP<sub>P</sub> In equation 1, SP<sub>W</sub> is the solubility parameter of water measured at 25°C., and SP<sub>P</sub> is the solubility parameter of the resin A or resin B measured at 25°C.
Absstract of: EP4664623A1
An embodiment of the present invention relates to a secondary battery and addresses the technical problem of providing a secondary battery which can prevent deformation during the assembly of a cap assembly. To this end, disclosed in the present invention is a secondary battery comprising: a can; an electrode assembly accommodated in the can; a cap assembly for closing the can and including a cap-up and a safety vent; and a fixing means for fixing the cap-up and the safety vent to each other.
Absstract of: EP4663981A1
An object of the present invention is to provide a gasket, a planar shape of which can be easily deformed and which can be easily positioned in a space of a target sealed object, and a sealing structure. A gasket (1), which is capable of sealing a loop-shaped target sealed regions (61, 71) between a pair of members (60, 70) combined with each other, includes a base (22) having a shape along a circumferential direction of the target sealed regions (61, 71), a joint (10), a bending rigidity of which in a width direction is lower than that of the base (22), which is connected to the base (22), and a guide (30) for positioning the gasket (1) in the target sealed regions (61, 71), wherein the guide (30) includes a hole (32) along a joining direction of the pair of members (60, 70), and wherein a positioning pin (50) fixed to the pair of members (60, 70) is inserted in the hole (32).
Absstract of: 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).
Absstract of: 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.
Absstract of: 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.
Nº publicación: EP4664582A1 17/12/2025
Applicant:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Absstract of: 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.
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