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1418
resultados
Última actualización
14/12/2025 [07:13:00]
Resultados 475 a 500 de 1418
Resumen de: EP4661175A1
The present disclosure relates to a secondary battery module frame, and provides the secondary battery module frame that includes a body having a receiving space formed therein; and a plurality of exposure holes penetrating one surface of the body and provided to expose the receiving space, wherein in the exposure hole, a matte portion formed along the perimeter of the inner surface of the exposure hole and diffusely reflecting light incident on the inner surface of the exposure hole is formed.
Resumen de: EP4661203A1
Disclosed is a battery pack, and a vehicle including the same. The battery pack includes a plurality of battery modules in each of which a plurality of battery cells are stacked; a pack case in which the plurality of battery modules are accommodated; and a fireproof cover configured to cover a plurality of bus bars, which electrically connect the plurality of battery modules, to prevent an abnormal phenomenon of the bus bars when a thermal event occurs.
Resumen de: EP4661155A2
A processor-implemented method for estimating a cathode capacity of a battery and a battery recycling system utilizing the method are provided. A processor-implemented method for estimating a cathode capacity of a battery includes receiving first discharge data associated with a first discharge rate of a battery, receiving second discharge data associated with a second discharge rate of the battery, receiving third discharge data associated with a third discharge rate of the battery, and estimating the cathode capacity of the battery based on the first discharge rate, the second discharge rate, the third discharge rate, the first discharge data, the second discharge data, and the third discharge data, where the first discharge rate, the second discharge rate, and the third discharge rate may be different from each other.
Resumen de: EP4661126A1
An apparatus and a method for manufacturing a secondary battery involve an electrode assembly being horizontally inserted into a case in a state in which the case and the electrode assembly are placed horizontally in order to prevent deformation of related parts such as a current collector due to the weight of the electrode assembly. The apparatus for manufacturing a secondary battery includes a horizontal insert unit in which a cap plate is assembled and which horizontally inserts a horizontally mounted electrode assembly into an opening of a horizontally mounted case.
Resumen de: EP4661166A1
The present disclosure discloses a safe cylindrical battery, including a battery housing, wherein a core assembly is arranged in the battery housing, and the core assembly includes an electrode sheet (20), a compact full electrode lug (21), and a channel full electrode lug (22); the compact full electrode lug (21) is vertically arranged on one end of the electrode sheet (20); the channel full electrode lug (22) is parallelly arranged on the other end of the electrode sheet (20); the electrode sheet (20), the compact full electrode lug (21), and the channel full electrode lug (22) are of an integral structure; the electrode sheet (20), the compact full electrode lug (21), and channel full electrode lug (22) are wound to form a helical structure; and an explosion-proof line (30) is engraved on one end of the battery housing corresponding to the channel full electrode lug (22). The present disclosure provides a safe cylindrical battery, which can timely and directionally discharge gases in the battery through the channel electrode lug (22) during thermal runaway, so as to improve the safety performance.
Resumen de: EP4661158A1
A battery pack according to an embodiment disclosed herein includes: a battery cell including a pouch configured to cover a cathode material and an anode material, a first terminal, and a second terminal; a connector including a transistor configured to connect the pouch and the first terminal; and a controller configured to measure an inrush current flowing into the connector, and diagnose a state of the battery cell based on the inrush current.
Resumen de: EP4661189A1
Examples of the present disclosure include a separator for a rechargeable lithium battery, a method of manufacturing the separator, an electrode assembly for a rechargeable lithium battery including the separator, and a rechargeable lithium battery including the separator. Examples of the present disclosure include a separator for a rechargeable lithium battery, the separator including a first area, and a second area located at each of both ends of the first area, wherein :Thickness increase rate of second area > MD heat shrinkage rate of second area, and :Thickness increase rate of second area > TD heat shrinkage rate of second area.
Resumen de: EP4661137A1
A monomer for an electrolyte according to the embodiments of the present disclosure may include a compound represented by Formula 1. A lithium secondary battery according to the embodiments of the present disclosure includes a cathode, an anode, and an electrolyte, wherein the electrolyte may include a polymer of the compound represented by Formula 1.wherein X<sub>1</sub>, X<sub>2</sub> and X<sub>3</sub> are each independently a halogen element,R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub> are each independently hydrogen, a halogen element, a substituted or unsubstituted C1 to C6 alkyl group, or a polymerizable group, andat least one of R<sub>1</sub>, R<sub>2</sub> or R<sub>3</sub> is a polymerizable group.
Resumen de: EP4661154A1
Dispositif de mesure des variations dimensionnelles de cellules électrochimiques de batterie lors de cycles de charge et de décharge, comportant suivant un axe principal (A) entre une plaque inférieure (2) et une plaque supérieure (4) d'une presse reliées rigidement, un empilage comprenant un plateau fixe (14) et un plateau mobile (12) de serrage entre eux d'une cellule en appliquant une force axiale, un capteur de cette force axiale (26), un capteur de déplacement axial du plateau mobile (12), et un vérin hydraulique (16) comprenant d'un côté d'un piston une première chambre délivrant une première force vers la cellule, et de l'autre côté une deuxième chambre, équipée d'un réservoir avec accumulateur de pression à gaz (66), délivrant une deuxième force de contrôle de pression qui est opposée à la première force pour donner au final la force axiale appliquée par le vérin (16).
Resumen de: EP4661161A1
Provided are a battery pack and a powered device. The battery pack includes a box body (100), battery modules (200) and a pressure relief system (400). The multiple battery modules (200) are stacked within the box body (100) in a height direction of the box body (100). The battery module (200) includes a frame (2) and a cell group (1) accommodated within the frame (2). Each of all frames (2) is provided with a sub-channel (220), and sub-channels (220) of all frames (2) communicate with one another to form a module pressure relief channel (221), and ejecta generated during explosion of an explosion-proof valve of the cell group (1) is capable of flowing into the module pressure relief channel (221). The pressure relief system (400) is capable of communicating the module pressure relief channel (221) with an exterior of the box body (100).
Resumen de: EP4661184A1
A secondary battery according to an embodiment of the present disclosure may include: a housing having an accommodation space; and a venting portion disposed in the housing and openable by pressure of the accommodation space, and the venting portion may include: a venting cover having one surface facing the accommodation space; a notch portion formed in the venting cover; and a protrusion portion protruding toward the notch portion.
Resumen de: EP4661168A1
Aspects of the present disclosure relate to a secondary battery, and specifically, a secondary battery including a cap plate or a can having heterogeneous metal layers. To solve the technical problems herein, a secondary battery in accordance with embodiments of the present disclosure may include an electrode assembly comprising a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate, a can configured to provide a space for accommodating the electrode assembly, and a cap plate joined to an opening of the can and configured to form a through-hole, wherein the cap plate may include a first metal layer formed of a first metal and a second metal layer formed of a second metal different from the first metal, and the through-hole may be formed to pass through the first metal layer and the second metal layer.
Resumen de: EP4661177A1
There is provided a battery module capable of delaying thermal propagation to adjacent battery cells by controlling the direction of gas and flame emitted from a battery cell. A battery module according to the present disclosure includes: a cell stack including multiple battery cells; and one or more physical members, wherein an intumescent fire protection member is provided on a surface of a physical member closest to the cell stack, among the physical members, which faces the cell stack, wherein the intumescent fire protection member is a coating layer formed integrally with the physical member by applying an intumescent fire protection material, and wherein the intumescent fire protection member is configured to expand into a space between adjacent battery cells when the battery cell generates heat, thereby isolating the adjacent battery cells from each other.
Resumen de: WO2025224573A1
The invention relates to an electric cell (1) for an electrically-driven vehicle, the cell (1) comprising: - a housing (3) defining an interior volume (4) containing an electrolyte; and - at least one stack of electrodes comprising a plurality of electrodes separated from one another by a porous separator film, the at least one stack of electrodes being arranged in the housing (3), the cell (1) comprising a degassing device (2) arranged on the housing (3), which degassing device (2) comprises: - a first porous membrane located on the interior volume (4) side of the housing (3); and - a second porous membrane (6) that is separate from the first membrane and that is arranged facing the first membrane, the first membrane and second membrane (6) being arranged at a distance from one another.
Resumen de: EP4661167A1
A secondary battery (100) including a housing (110), an electrode assembly (120) disposed inside the housing (110), a pole (140), and an insulating member (150) is provided. The housing (110) includes an end wall (111) and a sidewall (112) surrounding the end wall (111). The pole (140) is fixed to the end wall (111) and electrically connected to the electrode assembly (120). The pole (140) includes a columnar part (142) passing through the pole hole (1111), and an inner flange (141) located inside the housing (110) and extending from the columnar part (142) towards the periphery of the end wall (111). The insulating member (150) is located on one side of the end wall (111) facing the interior of the housing (110). The insulating member (150) includes a first insulator (151) surrounding the columnar part (142) and a second insulator (152) surrounding the first insulator (151).
Resumen de: EP4661165A2
Disclosed herein relates to a prismatic secondary battery including: an electrode assembly including a first electrode lead part formed in a first side direction and a second electrode lead part formed in a second side direction opposite the first side direction; a lower case having an open upper surface and housing the electrode assembly therein; and an upper case covering the open upper surface of the lower case, wherein the upper case includes: a first terminal part bent from a top surface of the upper case corresponding to the open upper surface of the lower case and extending downwardly in the first side direction; and a second terminal part bent from the top surface of the upper case and extending downwardly in the second side direction, wherein the first electrode lead part is electrically connected to the first terminal part, and the second electrode lead part is electrically connected to the second terminal part.
Resumen de: EP4661097A2
The present invention relates to a lithium secondary battery manufactured by forming a negative electrode free battery and then forming a lithium metal on the negative electrode current collector by charging.In the lithium secondary battery, since lithium metal is formed on the negative electrode current collector in the state of being blocked with the atmosphere, the generation of the conventional surface oxide layer (native layer) formed on the negative electrode does not occur inherently, thereby preventing the reduction of the efficiency and lifetime characteristics of the battery.
Resumen de: EP4661093A1
A positive electrode active material for a rechargeable lithium battery, a method for preparing the positive electrode active material, and a rechargeable lithium battery including the positive electrode active material are provided. The positive electrode active material includes first particles including a compound of Li<sub>a1</sub>Mn<sub>z1</sub>Fe<sub>x1</sub>Ti<sub>y1</sub>B<sup>1</sup><sub>b1</sub>PO<sub>4-c1</sub> and having a first average particle diameter, and second particles including a compound of Li<sub>a2</sub>Ni<sub>z2</sub>Mn<sub>x2</sub>C<sup>1</sup><sub>y2</sub>O<sub>c2</sub> and having a second average particle diameter. The amount of the first particles is about 80 wt% to about 97.5 wt% on the basis of 100 wt% of a sum of the amount of the first particles and the amount of the second particles.
Resumen de: EP4661099A1
The present application relates to a cathode material and a preparation method therefor, a cathode plate and a secondary battery. The cathode material includes an inner core and a coating layer coated on at least part of a surface of the inner core, wherein the inner core includes a material with a chemical formula LiNiaCobMncQdO2, where Q element includes at least one of Zr and Al, 0.89≤a≤0.98, 0≤b≤0.06, 0≤c<0.11, d>0, and a+b+c+d=1, and the coating layer includes a material with a chemical formula LimConX(1-n)O2, where X element includes at least one of Al, W, Ti, B and La, 0
Resumen de: EP4661188A1
Disclosed are a battery system and a vehicle including the same, the battery system including a battery module, a pack casing in which the battery module is installed, and an elastic part installed between the pack casing and the battery module and configured to press the battery module based on the pack casing, the elastic part having an end supported on the pack casing or the battery module by means of a cap made of a fire resistance material.
Resumen de: EP4661153A2
Die Erfindung betrifft einen Akkupack (1) zur Versorgung eines elektrisch angetriebenen Bearbeitungsgeräts mit elektrischer Antriebsleistung, wobei der Akkupack (10) aufweist: wenigstens zwei Pouchzellen (10, 20, 30), wobei die Pouchzellen (10) Zelltabs (11, 21, 31) aufweisen und derart ausgebildet und in einem Stapel (S) angeordnet sind, dass die Zelltabs (11, 21, 31) auf einer gemeinsamen Tabseite (22) des Stapels (S) in Tabspalten (22a, 22b) angeordnet sind, eine Leiterplatte (40), wobei die Leiterplatte (40) auf der gemeinsamen Tabseite (22) des Stapels (S) angeordnet ist und mit den Zelltabs (11, 21, 31) elektrisch verbunden ist, und wenigstens einen elektrischen Zellverbinder (24) zur elektrischen Verbindung von zwei Zelltabs (11, 21, 31) zweier benachbarter Pouchzellen (10, 20, 30) mit der Leiterplatte (40). Die Leiterplatte (40) weist Ausnehmungen (44) auf, durch die sich die Zelltabs (11, 21, 31) auf die von den Pouchzellen (10, 20, 30) abgewandte Seite (42) der Leiterplatte (40) erstrecken und wobei der wenigstens eine Zellverbinder (24) auf der abgewandten Seite (42) der Leiterplatte (40) an dieser angebracht ist.
Resumen de: EP4661101A1
According to various embodiments of the present invention, a silicon composite may include: pure silicon grains; and a buffer layer coated on the surface of the pure silicon grains. A method for manufacturing the silicon composite according to various embodiments of the present invention may include: a step of pulverizing metallurgical-grade silicon particles; and a step of forming a buffer layer layer on the surface of the pulverized metallurgical-grade silicon grains. An anode for a secondary battery according to various embodiments of the present invention may include the silicon composite. A secondary battery according to various embodiments of the present invention may include the anode.
Resumen de: EP4661180A1
A method of determining a preload force of a battery module (1) includes: S1, mounting a strapping band (2) to the battery module; S2, measuring a length of the battery module after the strapping band is mounted, as a first length; and S3, removing the strapping band, applying a compression force to compress the battery module until a length of the battery module is equal to the first length, and taking the compression force as the preload force.
Resumen de: EP4661092A2
A positive electrode active material for a rechargeable battery comprises: (1) first particles comprising a compound having an olivine structure, (2) second particles comprising a compound having a spinel structure, (3) third particles having a layered structure, and (4) fourth particles. An amount of the third particles is about 10 parts by weight to about 20 parts by weight based on 100 parts by weight of the positive electrode active material. Also disclosed are positive electrodes including the positive electrode active materials, and recharageable lithum batteries including the positive electrode active materials.
Nº publicación: GB2641622A 10/12/2025
Solicitante:
AEKYUNG CHEMICAL CO LTD [KR]
Aekyung Chemical Co., Ltd
Resumen de: GB2641622A
The present disclosure relates to a negative electrode active material for a secondary battery, a method for manufacturing same, and a secondary battery using same, the negative electrode active material comprising a carbide carbonized by heat-treating a mixture comprising starch and isocyanate in an inert gas atmosphere. More specifically, the present invention relates to a negative electrode active material for a secondary battery, a method for manufacturing same, and a secondary battery using same, the negative electrode active material having a low specific surface area and improving the initial charging/discharging capacity of a secondary battery.
BOPI
Sede Electrónica
