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1089
results.
Updated on
22/08/2026 [07:48:00]
Results 950 to 975 of 1089
Absstract of: WO2026168869A1
A secondary battery according to one embodiment described in the present document comprises: an electrode assembly having an electrode tab; an electrode lead connected to the electrode tab; a lead cap through which the electrode lead passes; and a pouch film which surrounds the electrode assembly and at least a portion of the lead cap and forms an internal space in which the electrode assembly is located, wherein the lead cap includes a cap coupling part coupled to the pouch film, a front part through which the electrode lead passes, and a connecting part connecting the front part and the cap coupling part, and when the direction opposite the direction in which the front part faces the internal space is referred to as a first direction and a direction orthogonal to the first direction is referred to as a second direction, at least a portion of the connecting part has a curvature in a cross section obtained by cutting the lead cap along a plane orthogonal to the second direction.
Absstract of: EP4790377A1
A liquid leakage detection circuit (100), comprising: a sampling circuit (110), the sampling circuit (110) having an output end connected to an input end of an excitation source circuit (120) and used for sending a control signal to the excitation source circuit (120); and the excitation source circuit (120), the excitation source circuit (120) having an output end connected to a signal detection circuit (130) and used for generating an excitation signal on the basis of the control signal and sending the excitation signal to the signal detection circuit (130), and the excitation signal being a periodic pulse signal. The sampling circuit (110) is further used for collecting a liquid leakage state signal of a battery pack (200) in the signal detection circuit (130), wherein the liquid leakage state signal is generated in response to the excitation signal, so that liquid leakage detection for the battery pack can be achieved. The present invention further relates to a liquid leakage detection system, method and apparatus, a device, and a battery management system.
Absstract of: EP4790780A2
0001 A cylindrical battery cell includes a battery can accommodating a jelly-roll type electrode assembly therein, and a cap covers and closes an open end of the battery can. The cap is bonded to a tab of an electrode of the electrode assembly. The cap includes two or more electrode connecting portions, each of which protrudes into the interior of the battery can along the axial direction. The electrode connecting portions are spaced apart from one another in a circumferential direction about a center of the cap, and at least two of the electrode connecting portions are positioned on opposing sides of the center of the cap. The cap functions as both a current collector plate and the cap, thus increasing energy density. Manufacturing methods are also disclosed, as is a battery pack including the battery cell and a vehicle equipped with the battery pack.
Absstract of: EP4790157A1
Disclosed is a method of recovering valuable metals from spent batteries according to various embodiments for achieving the above-described objects. The method may include performing heat treatment on a target material corresponding to spent lithium-ion batteries using a heat treatment device, performing a crushing process, using a crushing device, on the recovered target material after the heat treatment to obtain a plurality of recovered materials, performing a sieving process on the plurality of recovered materials through a sieving device to obtain a plurality of separated fractions having different particle sizes, performing a leaching process, using a leaching device, on a first separated fraction among the plurality of separated fractions to separate lithium carbonate (Li2CO3) from the first separated fraction and obtain valuable metal oxides, performing a grinding process on the valuable metal oxides using a grinding device to micronize them, obtaining a mixed powder from the micronized valuable metal oxides through a magnetic separation process using a magnetic separation device, and separating the valuable metal oxides from which the mixed powder has been removed into a plurality of sub-oxides based on the difference in specific gravity between the components using a specific gravity separation device.
Absstract of: EP4790820A1
0001 Embodiments of this application provide a battery cell, a battery, and an electric device. The battery cell includes a housing, a pressure relief mechanism, an electrode assembly, and an insulating member. The housing has a first wall, the pressure relief mechanism is disposed on the housing, the electrode assembly is disposed inside the housing, and the insulating member is disposed between the electrode assembly and the first wall. The insulating member is configured to isolate the electrode assembly. The insulating member is provided with a vent passage, and the vent passage is configured to guide gas inside the battery cell to the pressure relief mechanism. The insulating member includes a body and a ceramic coating, the body being made of an insulating material, and the ceramic coating being disposed on a surface of the body. The technical solutions of this application improve the reliability of the battery.
Absstract of: EP4790829A1
0001 An end-cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the present disclosure. The end-cover assembly includes a top cover and an explosion-proof valve. The top cover defines an explosion-proof hole. The explosion-proof hole includes a recessed-platform portion. A welding ring portion of the explosion-proof valve is mounted at the recessed-platform portion, and is fixedly connected to a hole wall of the recessed-platform portion. The welding ring portion and a connecting ring portion of the explosion-proof valve are both disposed around an explosion-proof-valve body. The connecting ring portion is fixedly connected between the welding ring portion and the explosion-proof-valve body. A score portion of the explosion-proof valve is disposed around a rupture portion. The score portion is rotatable relative to a fixing portion after the score portion is broken. When an internal pressure of the energy storage apparatus is too large, the rupture portion is flipped downward to relieve pressure. By pulling a handle of the explosion-proof valve, the fixing portion can be flipped downward to relieve pressure. Meanwhile, pulling the handle can separate the explosion-proof-valve body from the welding ring portion, the welding ring portion enters a broken state, and the explosion-proof hole is used for electrolyte injection. The end-cover assembly provided in the present disclosure can avoid the explosion-proof valve from failing
Absstract of: EP4790811A2
0001 A battery pack according to the present disclosure includes a plurality of battery modules; and a pack case accommodating the plurality of battery modules, wherein the pack case includes a pack tray having an internal space in which the battery modules are received and an open top; and a pack cover covering the top of the pack tray, coupled to the pack tray and having a gas venting path embedded therein, the gas venting path communicating with each battery module.
Absstract of: EP4789867A2
Provided herein are processing apparatuses for producing high-quality films of sintered ceramics. The instant disclosure sets forth equipment and processes for making high quality, rapidly processed ceramic electrolyte films. These processes include high-throughput continuous sintering of oxides for use as electrolyte films. In certain processes, the film is not in contact with any surface as it sinters (i.e., during the sintering phase).Set forth herein are processes for making and using bilayers comprising a green body layer on a metal layer and bilayers comprising a sintered oxide layer on a metal layer. Set forth herein are processes for rapidly sintering thin bilayers comprising a green body layer on a metal layer in order to produce bilayers comprising a sintered oxide layer on a metal layer.
Absstract of: EP4790824A2
0001 An energy storage device (battery) 1 includes an electrode assembly 20 having current correcting tabs 28, 29 each of which is formed of a plurality of projecting portions 24b, 26b projecting from a first straight line portion 20c on one side in a stacking direction of electrode sheets 21, 22. The electrode assembly 20 is housed in a case (exterior body) 10. The energy storage device further includes current collectors 60A, 60B which are electrically connected to the external terminals 50A, 50B disposed on the case 10. The current collectors 60A, 60B are connected to the current collecting tabs 28, 29 arranged in a stacking direction of the electrode sheets 21, 22 on a second straight line portion 20d side where the projecting portions 24b, 26b are not formed.
Absstract of: EP4790789A2
The present disclosure relates to an auxiliary device for monitoring a module and/or pack of an electric battery system. The auxiliary device provides module-level and/or pack-level measurements and may be flexibly placed anywhere within an electric battery monitoring system.
Absstract of: EP4790810A2
0001 This application relates to a battery box, a battery, and an electric apparatus. A first end plate (10), a second end plate (20), and a first middle frame (30) jointly enclose a semi-accommodating space (50) with an opening at one end, and a height of the semi-accommodating space (50) in an entry direction (a) of a battery module (200) entering the space is smaller than a height of the battery module (200) in the direction, that is, the semi-accommodating space (50) is shallower than the battery module (200). In this way, when the battery module (200) is placed into the semi-accommodating space (50), it is less likely to fall and cause damage to the battery module (200). After the battery module (200) is safely placed into the semi-accommodating space (50), a second middle frame (40) is spliced with the first middle frame (30) to seal the semi-accommodating space (50), thereby encapsulating the battery module (200).
Absstract of: EP4790778A1
According to exemplary embodiments of the present disclosure, an electrode splicing apparatus is provided. The electrode splicing apparatus includes: a first splicing unit capable of gripping a trailing end portion of a running electrode sheet; a second splicing unit disposed opposite to the first splicing unit and capable of gripping a leading end portion of a standby electrode sheet; and a line-contact type pressing unit for bonding the trailing end portion of the running electrode sheet and the leading end portion of the standby electrode sheet with a tape. The present disclosure also provides an electrode splicing method using such an electrode splicing apparatus.
Absstract of: EP4790777A1
0001 The present disclosure relates to an electrode assembly including electrodes and separators, and an apparatus for manufacturing such an electrode assembly. An electrode assembly according to an embodiment of the present disclosure may include a first separator; a first electrode having one surface in contact with the first separator; a second separator having one surface in contact with the other surface of the first electrode; a second electrode having a different polarity from the first electrode and having one surface in contact with the other surface of the second separator; and a plurality of attachment tapes attached to the first separator, the first electrode, the second separator, and the second electrode to combine them together, wherein the first and second separators may have wider widths than the first and second electrodes, wherein widthwise edges of the first and second separators may include adhesive portions that are bonded to each other and non-adhesive portions that are not bonded to each other, and wherein the non-adhesive portions may not overlap the plurality of attachment tapes.
Absstract of: EP4790751A1
The present invention relates to an electrode manufacturing device and an electrode manufacturing method, which provides an electrode manufacturing device and an electrode manufacturing method, capable of effectively preventing over-drying by adjusting a speed of a fan in a drying part to a lower rotation speed than the rotation speed before a shutdown based on the internal humidity of the drying part, upon restart of a coating part after the shutdown.
Absstract of: EP4790797A1
The present disclosure provides a battery cell unit including: a plurality of battery cells; a battery cell unit frame that forms an accommodation space for the plurality of battery cells and seals the accommodated plurality of battery cells against the outside; and an insulating oil that is capable of cooling the plurality of battery cells and is hermetically injected into the accommodation space of the battery cell unit frame to immerse the plurality of battery cells, wherein the battery cell unit frame is provided with a cooling flow path penetrating therethrough through which coolant can flow in and out.
Absstract of: EP4790825A1
A battery assembly according to the present invention comprises: a busbar capable of conducting electricity; a busbar frame configured to support the busbar; an end plate configured to cover the busbar frame; a substrate including a substrate body and a substrate bending portion that is bent between the end plate and the busbar frame to contact the busbar from the substrate body; and a fuse located on the substrate bending portion to interrupt electricity flowing through the substrate, wherein the fuse faces the end plate, and the end plate includes a spaced portion formed at a position corresponding to the fuse and spaced apart from the fuse.
Absstract of: EP4790787A1
The present invention relates to a graphene network battery including a positive electrode current collector, a positive electrode mixture, a separator, a negative electrode mixture, and a negative electrode current collector, wherein the negative electrode mixture includes a negative electrode material layer formed on an upper portion of the negative electrode current collector, and including a silicon negative electrode active material and a binder, and a structure-stabilized graphene layer formed on at least one surface of the negative electrode material layer.
Absstract of: EP4790803A1
The present disclosure relates to a manufacturing method of a pouch for a secondary battery, which includes a step of preparing a pouch fabric in which a first pocket area, a second pocket area disposed to be spaced apart from the first pocket area, and a gas pocket area disposed between the first pocket area and the second pocket area are defined; and a step of cutting the pouch fabric along a cutting line passing through the gas pocket area, wherein when the pouch fabric is cut along the cutting line, the gas pocket area is divided into a first divided gas pocket area connected to the first pocket area and a second divided gas pocket area connected to the second pocket area, and wherein the cutting line is defined in a left-right asymmetrical manner based on a center line passing through the center of the gas pocket area, thereby obtaining the advantageous effect of reducing the amount of pouch fabric used and lowering costs.
Absstract of: EP4789842A1
0001 A forming apparatus according to an embodiment of the present disclosure may form an accommodation portion in a pouch film. The forming apparatus may include a die having a forming space and an additional space recessed from an upper surface of the die, the additional space located outside of the forming space and separated from the forming space; a stripper disposed upside of the die and configured to hold the pouch film; a punch configured to apply pressure to a target area of the pouch film to stretch it into the forming space; and a pressure applying unit in communication with the additional space and configured to apply pneumatic pressure to a peripheral area located around the target area of the pouch film through the additional space.
Absstract of: EP4790818A1
0001 The technical idea of the present disclosure provides a battery module including: a cell block including a plurality of battery cells; a module case including a bottom plate facing a bottom surface of the cell block, a first side plate facing a first side surface of the cell block, a second side plate facing a second side surface of the cell block, and a top plate facing an upper surface of the cell block; a front frame facing a front surface of the cell block; a rear frame facing a rear surface of the cell block and including a gas discharge hole; and a fire extinguishing cover including an upper cover portion between the upper surface of the cell block and the top plate, and a side cover portion between the rear surface of the cell block and the rear frame.
Absstract of: EP4790821A1
The present disclosure provides a busbar frame assembly structure including a busbar frame, a hinge coupler connected to a battery module case and formed in an upper and lower multi-stage structure, and a hinge pin coupled to an upper end portion of the busbar frame.
Absstract of: EP4790794A1
0001 Provided are a thermal management device and a battery pack. The thermal management device includes one or more support members and one or more heating films. Each support member is configured to cool a corresponding battery cell row. Each heating film is configured to heat a corresponding battery cell row. Each heating film is connected to a corresponding support member. The heating film is shaped to adapt to the support member so as to ensure a stable contact between the heating film and the support member.
Absstract of: EP4790730A1
A manufacturing method of a solid electrolyte of a pyrochlore-type that includes a plurality of cations including a metal cation, a halogen element, and a defect structure, includes a mixing process (S16) that includes preparing a mixed raw material by mixing a precursor of the solid electrolyte or raw materials for the precursor with a halogen-containing raw material containing the halogen element, and a firing process (S17) that includes firing the mixed raw material. The firing process includes volatilizing the halogen element from the solid electrolyte at a halogen volatilization rate Vout and supplying the halogen element to a firing atmosphere of the solid electrolyte at a halogen supply rate Vin. The firing process includes firing the mixed raw material under an atmosphere in which a relationship of Vin/(Vout × Dp) ≥ 0.015 is satisfied, where Dp is a median particle diameter of the solid electrolyte.
Absstract of: EP4790795A1
The present application relates to a battery module and a battery pack. The battery module includes: multiple battery cell groups spaced apart along a first direction; multiple cooling plates spaced apart along the first direction, with a cooling plate arranged between two adjacent battery cell groups; and multiple connection terminals located at one end of the cooling plates, the connection terminals corresponding one-to-one with the cooling plates. Adjacent cooling plates are interconnected via the connection terminals, and the connection terminal on the cooling plate furthest from the downstream end is provided with a shunt port for discharging coolant from the cooling plate.
Nº publicación: EP4789859A1 12/08/2026
Applicant:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Absstract of: EP4789859A1
0001 A bump preparation device, comprising a bump preparation mechanism (100) and a compacting mechanism (200) which are sequentially arranged in a conveying direction (X) of a first material (300), wherein the bump preparation mechanism (100) is used for preparing overvoltage bumps (310) on the first material (300); the height (h) of each overvoltage bump is greater than the height of a preset bump, and the preset bump is a bump required by the first material (300); and the compacting mechanism (200) is used for applying a pressure to the overvoltage bumps (310) towards a main body of the first material (300), so that the thickness (a) of the first material reaches a preset value. The device can improve the thickness consistency of electrode sheets and reduce the risk of tab dislocation. Also provided are a battery production system and a winding method.
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