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1441
results.
Updated on
07/08/2025 [09:25:00]
Results 175 to 200 of 1441
Absstract of: EP4597018A1
A cooling plate assembly, an assembly method applied to the cooling plate assembly, a battery module and a battery pack are provided. The cooling plate assembly includes a cooling plate configured to control a temperature of the battery module; and at least one current collector connected to an end portion of the cooling plate through bonding. The cooling plate assembly is conducive to improving the connection stability between the cooling plate and the current collector and the assembly efficiency.
Absstract of: EP4597696A1
The present invention relates to a secondary battery including: an electrode assembly; and a pouch type exterior including an accommodation part, which accommodates the electrode assembly, and a sealing part provided to surround at least a portion of the accommodation part to seal the accommodation part, wherein the sealing part includes: a first folding portion provided so that an outer end of the sealing part is folded toward the accommodation part along a first folding line spaced a first distance from the outer end of the sealing part toward the accommodation part; and a second folding portion provided so that the first folding portion is folded toward the accommodation part along a second folding line spaced a second distance from the first folding line toward the accommodation part, wherein, when a predetermined line spaced a predetermined distance from the outer end of the sealing part toward the accommodation part is referred to as a sealing line, the sealing part includes a sealed portion in which a portion from the outer end of the sealing part to the sealing line is sealed by fusion, wherein, when a distance from the outer end of the sealing part to the accommodation part is referred to as a width of the sealing part, a distance from the sealing line to the accommodation part is 45% to 55% of the width of the sealing part.
Absstract of: EP4597084A1
The present invention relates to a method for detecting a metal foreign material in an electrode active material, wherein the method includes a first step of dissolving an electrode active material in an aqueous nitric acid solution to form a metal foreign material extraction solution, a second step of plating a metal foreign material in the metal foreign material extraction solution on an electrode, and a third step of measuring an amount of the metal foreign material plated on the electrode.
Absstract of: EP4597621A1
Provided are a positive electrode active material, a positive electrode plate, a battery cell, a battery and an electrical apparatus, which belongs to the technical field of secondary batteries. The positive electrode active material includes a lithium-rich manganese-based material and a lithium-containing phosphate, in which, the lithium-rich manganese-based material includes solid particles and hollow particles, the hollow particle including a shell and a cavity provided inside the shell. Both the rate performance and the volume energy density of the battery cell can be taken into consideration in the technical solution of embodiments of the present invention.
Absstract of: EP4597741A1
A battery cell (10), a battery (100), and a power-consuming apparatus are provided. The battery cell (10) includes a housing (11), an electrode terminal (12), a first connecting member (13), and an insulating film (14). A first end wall (110) is provided with a first through-hole (1101), and the first through-hole (1101) passes through the first end wall (110) in a thickness direction of the first end wall (110). The electrode terminal (12) is mounted in the first through-hole (1101). At least a part of the first connecting member (13) is located on an outer side of the first end wall (110) in the thickness direction, and the first connecting member (13) is disposed in a circumferential direction of the electrode terminal (12) and is connected to the electrode terminal (12). The insulating film (14) covers at least a part of an outer surface of the first end wall (110), the insulating film (14) is provided with a second through-hole (140) for exposing the electrode terminal (12), and the insulating film (14) is connected to the first connecting member (13). The technical solution can improve reliability of the battery.
Absstract of: EP4597721A1
The present application provides a separator, comprising a first base film and a second base film. The melting point of the second base film is lower than that of the first base film. The porosity of the first base film is denoted as P1, and the porosity of the second base film is denoted as P2, wherein 1.02 < P1/P2 ≤ 3. A base film with a large porosity has good air permeability, so the first base film with a large porosity exerts the excellent air permeability thereof; and a base film with a small porosity has good strength, so the second base film with a small porosity exerts the good strength thereof and is thus not prone to being punctured by lithium dendrites. Therefore, according to the present application, the separator has good air permeability and good strength due to the combination of the first base film and the second base film, so that the reliability and the cycle performance of a secondary battery can be improved.
Absstract of: EP4597720A1
This application provides a separator including a first base film and a second base film, where a melting point of the second base film is lower than a melting point of the first base film, and a swelling rate of the first base film is smaller than a swelling rate of the second base film. By cooperation of the two layers of base film structures, in a use environment of the separator, even if one layer of base film loses the insulation performance due to swelling, the other layer of base film can complement the performance, reducing the risk of short circuits between electrodes and also enhancing the strength of the separator, thereby improving the reliability of the battery in long-term service life.
Absstract of: EP4597726A1
This application provides a separator, including a first base film and a second base film. A melting point of the second base film is higher than a melting point of the first base film. A thickness of the first base film is denoted as T1, a thickness of the second base film is denoted as T2, and a total thickness of the separator is denoted as T, where T1/T2≥1.02, and 0.3≤T1/T≤0.7.The setting of a thickness relationship between the first base film and the second base film as well as a melting point relationship between the first base film and the second base film can improve the heat resistance of batteries and also effectively improves the high-temperature cycling performance of the batteries.
Absstract of: EP4597725A1
A separator (10) includes a first base film (11) and a second base film (12), where a melting point of the second base film (12) is higher than a melting point of the first base film (11), and a creep flexibility of the first base film (11) is larger than a creep flexibility of the second base film (12). The first base film (11) and the second base film (12) have different creep flexibility, so that the two base films have different deformability under the action of a stress. Stress buffering of one layer of base film and strength support of the other layer of base film jointly suppress damage to the separator caused by dendrites and reduce the risk of a short circuit caused by the dendrites penetrating the separator, thereby improving the reliability and cycle life of a battery.
Absstract of: EP4597683A1
The present disclosure relates to an electrode for a lithium secondary battery which not only effectively suppresses heat generation or ignition and thus has further improved stability, but also enables provision of batteries exhibiting excellent electrochemical characteristics, and a lithium secondary battery comprising the same.
Absstract of: EP4597137A1
A battery abnormality diagnosis apparatus according to an embodiment disclosed herein includes an obtaining unit configured to obtain voltage-state-of-charge (SOC) profiles of a plurality of battery units, an identifying unit configured to identify a designated first number of ranks of each of the plurality of battery units, based on the voltage-SOC profiles, and a diagnosing unit configured to diagnose abnormality of the plurality of battery units, based on changes of the ranks.
Absstract of: EP4597642A1
Disclosed are a current collector (40) and a method for preparing same, an anode plate comprising the current collector (40), a secondary battery (100), and an electric device (1000). The current collector (40) includes a porous three-dimensional framework (402) and a lithiophilic substance (404), where the lithiophilic substance (404) is distributed in pores of the porous three-dimensional framework (402). The current collector (40) includes a first side used to face the separator, and a second side facing away from the first side. In a direction from the first side to the second side, the porous three-dimensional framework (402) includes a first part and a second part, the thickness of the lithiophilic substance (404) in the pores of the first part being less than the thickness of the lithiophilic substance (404) in the pores of the second part. The thickness of the lithiophilic substance (404) in the current collector (40) gradually increases in a thickness direction of the porous three-dimensional framework (402), which may induce preferential deposition of a lithium metal in the second part of the porous three-dimensional framework (402), so as to limit the infinite volume expansion of deposited lithium by fully utilizing the pores of the three-dimensional current collector (40).
Absstract of: EP4597724A1
Provided in the present application is a separator. The separator comprises : a first porous base film; a second porous base film; and a porous coating, which is provided between the first porous base film and the second porous base film, wherein the porous coating comprises a binder and filler particles, and at least some of the filler particles are embedded into the first porous base film at a depth greater than or equal to 1 µ m and/or at least some of the filler particles are embedded into the second porous base film at a depth greater than or equal to 1 µ m. When the porous coating is located between the first porous base film and the second porous base film, not only can the binder bond the first porous base film and the second porous base film, at least some of the filler particles can also be embedded into the first porous base film and/or the second porous base film at a depth greater than or equal to 1 µ m, such that the bonding force between the porous coating and the first porous base film and/or the second porous base film is increased, and the heat resistance and nailing performance of the separator are effectively improved, thereby improving the reliability of a battery.
Absstract of: EP4597685A1
Provided are a battery, a charging device, a battery charging method, a battery management system and an electrical apparatus, which can improve the charging performance of batteries. The battery comprises: at least one battery cell, a positive electrode active material of the battery cell comprising LiMPO<sub>4</sub>, and M comprising Mn element and Fe element; and the battery management system, used for controlling the temperature of the battery in response to a charging instruction, such that the temperature of the battery during at least part of a charging process is within a preset temperature range.
Absstract of: EP4597785A1
A battery management device, a battery and a vehicle, including a power distribution unit, a management control unit, a bottom plate (3) and a second circuit board (52). The management control unit includes a first circuit board (53); the power distribution unit and the management control unit are both integrated on the bottom plate (3); the second circuit board (52) is electrically connected with the first circuit board (53) and the power distribution unit, and the first circuit board (53) and the second circuit board (52) are integrally formed.
Absstract of: EP4597678A1
Disclosed in the present application are a battery cell, a battery, and an electric apparatus. The battery cell comprises: a housing, comprising a housing cover and a housing body; a battery cell assembly, comprising an active substance-coated part; and a support arranged at the end of the active substance-coated part distal to the opening of the housing body and fitting the battery cell assembly. The support is provided with a body part and an extension part arranged circumferentially on the body part. The projection of the body part on the plane of the housing cover is within the projection of the active substance-coated part on the plane of the housing cover, and the projection of the extension part on the plane of the housing cover is located outside the projection of the active substance-coated part on the plane of the housing cover. The embodiments of the present application can reduce the probability that the active substance-coated part touches the housing and that the housing scratches the active substance-coated part.
Absstract of: EP4597677A1
The present application discloses a battery cell, a battery, and an electrical device. The battery cell comprises a housing assembly and a core assembly; the housing assembly comprises a housing and a first pole, the housing has a first wall provided with a mounting hole, the first pole is provided in the mounting hole, and the first pole comprises a first soldering surface; the core assembly comprises an active material coating portion and a conductive portion electrically connected to the active material coating portion, the active material coating portion is accommodated in the housing, the conductive portion comprises a second soldering surface in contact with the first soldering surface, and a portion of the second soldering surface is soldered to a portion of the first soldering surface by means of a soldering portion; a plane where the cross section of the mounting hole is located is taken as a projection plane, and in a direction perpendicular to the projection plane, the outer contour of the projection of the second soldering surface on the projection plane is located within a range of the outer contour of the projection of the first soldering surface on the projection plane. According to the battery cell of the present application, the fast charging performance, reliability and stability of the battery cell are improved.
Absstract of: EP4597729A1
The present application discloses a battery cell, a battery, and an electrical device. The battery cell comprises: a housing, a core assembly; a support, provided at one end of the core assembly; and an insulating member, matching the support and wrapping the core assembly. The core assembly, the support, and the insulating member are all provided in the housing, and at least a portion of the insulating member is connected to the wall surface of the support distant from the core assembly. In the technical solution of the embodiments of the present application, the reliability of connection between the insulating member and the support can be improved, the risk of falling of the insulating member can be reduced, the risk of corrosion of the housing caused by exposure of the core assembly can be reduced, the risk of failure of the core assembly can be reduced, the risk of electrolyte leakage can be reduced, and then the reliability and stability of the battery cell can be improved.
Absstract of: EP4597628A1
A silicon-based negative electrode active material, comprising M2Si2O5 and M2SiO3, wherein M comprises one or more alkali metal elements; in an XRD pattern of the silicon-based negative electrode active material, a diffraction angle 2θ has a first diffraction peak in the range of 24°-25°, and the half-peak width of the first diffraction peak is βA; the diffraction angle 2θ has a second diffraction peak in the range of 26°-27°, and the half-peak width of the second diffraction peak is βB; and the silicon-based negative electrode active material meets the equation: 1.0 ≤ β A/ β B ≤ 2.5.
Absstract of: EP4597617A1
Disclosed is an automatic electrode plate reading apparatus for secondary batteries which, when an arm descends, vacuum-adsorbs and grips a barcode part of a standby electrode plate, and then rises in the state in which an EPC sensor and a replacement preparation core move backwards, a first roller moves to the right, a third roller descends and second rollers rise, automatically connects the electrode plate vacuum-adsorbed and gripped by the arm to the replacement preparation core so as to be kept taut in the state in which the first roller moves to the left, the second rollers descend, the third roller rises and the EPC sensor and the replacement preparation core move forwards. The automatic electrode plate reading apparatus includes for secondary batteries includes a standby electrode plate (1) prepared in a roll form to replace an electrode plate around a core and rotatably installed, an EPC sensor (2), a first roller (3) configured to move left when an arm (8) descends, and to move right to push the standby electrode plate (1) when the arm (8) rises, second rollers (4) rotatably installed to place the standby electrode plate (1) at a regular position, and a third roller (6) installed below the second rollers (4) and configured to descend before the arm (8) descends and to rise so as to keep the standby electrode plate (1) taut after the arm (8) rises, and, in the state in which the arm (8) descends by an arm drive motor (11), detects a barcode on the standby electrode pl
Absstract of: MX2025003012A
Methods for forming dry composite material for an energy storage device electrode are provided. The method may comprise forming a slurry by mixing a solvent, a silicon active material, a carbon active material, and a carbon additive; and forming the dry composite material comprising the silicon active material, the carbon active material, and the carbon additive by removing the solvent. The carbon additive, silicon active material and carbon active material are substantially homogeneously dispersed in the dry composite material. The dry composite material may be used to form a dry electrode film in dry fabrication processes.
Absstract of: EP4596477A1
This application relates to an adhesive tape application mechanism (100), an adhesive tape application apparatus (1000), and a battery production line. The adhesive tape application mechanism (100) includes: an assembly base (10); a central adhesive tape suction assembly (20) capable of adsorbing and applying an adhesive tape (3000) to a first surface (2100) of a workpiece to be adhered; end adhesive tape suction assemblies (30) arranged on two opposite sides of the central adhesive tape suction assembly (20), where each of the end adhesive tape suction assemblies (30) includes an end driving member (31) and an end adhesive tape suction member (32) in transmission connection with the end driving member (31); and an end sliding assembly (40), disposed on the assembly base (10), where each of the end adhesive tape suction members (32) is configured to be driven by the end driving member (31) connected thereto, guided by the end sliding assembly (40) to slide toward the central adhesive tape suction assembly (20) for closing, and is capable of adsorbing, bending, and applying the adhesive tape (3000) to a second surface (2200) and a third surface (2300) of the workpiece to be adhered, respectively. The adhesive tape application mechanism (100), the adhesive tape application apparatus (1000), and the battery production line provided by this application can alleviate the problem caused by unstable pressing force resulting from elastic deformation, thereby enhancing the reliability
Absstract of: EP4597712A1
Disclosed is a battery module, including batteries arranged along a first direction that is a thickness direction of the battery and an integrated busbar cover plate. The integrated busbar cover plate is disposed at tops of the batteries. Limiting through hole groups arranged at intervals along the first direction are provided on the integrated busbar cover plate, correspond to the batteries one by one, and are matched with poles of corresponding batteries. In the first direction, a length of a limiting through hole in the limiting through hole group near an end part of the integrated busbar cover plate is greater than that of a limiting through hole in the limiting through hole group located in a middle part of the integrated busbar cover plate. The length of the limiting through hole is a size of the limiting through hole along the first direction.
Absstract of: EP4597737A1
The present application relates to the technical field of batteries, and provides an electrode assembly, a battery cell, a battery, and an electric device. The electrode assembly comprises two electrode sheets having opposite polarities and a separator used for separating the two electrode sheets, the two electrode sheets and the separator being wound in a winding direction to form a main body and two tabs. The tabs and the main body are arranged in a first direction; each tab comprises a plurality of tab portions arranged at intervals in the winding direction; the tab portions are bent relative to the first direction; at least parts of the plurality of tab portions are stacked in the first direction; and a protrusion is formed on at least one side of each tab portion in the thickness direction thereof. By providing the protrusions on the tab portions, the thickness of the plurality of tab portions stacked together can be increased after the tab portions are bent, and the problem of a small local thickness of the tab can be alleviated, so that the risk that the tab is welded through in the subsequent assembly process is reduced, and reduction of damage to the electrode assembly is facilitated, improving the production quality of the battery cell comprising the electrode assembly.
Nº publicación: EP4595153A1 06/08/2025
Applicant:
KAUTEX TEXTRON GMBH & CO KG [DE]
Kautex Textron GmbH & Co. KG
Absstract of: WO2025114532A1
The present invention relates to a battery housing (10) for receiving at least one battery component, wherein the battery housing (10) has an outer wall (20), which at least partially surrounds a receiving volume (11), and a cooling device (30). The cooling device (30) has a base plate (40) having a first connecting surface (42) and a cover plate (50) having a second connecting surface (52), wherein the connecting surfaces (42, 52) of the base plate (40) and of the cover plate (50) are connected to each other with an integral bond at least in an edge region (60), which is formed circumferentially around the cooling device (30), in such a way that a fluid duct (70) is formed for conducting a cooling fluid between the base plate (40) and the cover plate (50). The cooling device (30) is connected to the battery housing (10) in such a way that the entire edge region (60) of the cooling device (30) is arranged within the outer wall (20) of the battery housing (10), and the cooling device (30) forms the housing base (12) of the battery housing (10). The battery housing (10) has at least one inner wall (80) which is connected to the outer wall (20), the inner wall (80) extending between two opposite wall sections of the outer wall (20), and the inner wall (80) of the battery housing (10) being at least partly connected to a cooling surface (51) of the cooling device (30), the cooling surface facing the receiving volume (11). The invention also relates to a battery having a battery h
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