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1488
resultados
Última actualización
17/07/2025 [07:21:00]
Resultados 100 a 125 de 1488
Resumen de: EP4585308A1
Bei einem Verfahren zum Direktrecycling von Elektrodenschrotte, anfallend als Produktionsabfall bei der Produktion von Lithium-Ionen-Batterien soll in Verfahren zur Verfügung zu stellen, welches es ermöglicht, Elektrodenschrotte aus der LIB-Produktion durch mechanisches Beanspruchen zu recyclen, ohne die Aktivmaterialen negativ zu verändern, damit dieses der Produktion wieder zugeführt werden kann. Dies wird dadurch erreicht, dass das mechanische Beanspruchen der Elektrodenschrotte ein Vorzerkleinern der Elektrodenschrotte zu Schüttgut und ein mechanisches Beanspruchen der vorzerkleinerten Elektrodenschrotte in konditionierter Atmosphäre in einer Fließbettgegenstrahlmühle umfasst.
Resumen de: EP4585561A1
The present invention relates to a carbon nanotube composition having a volume density of 500/mm<sup>3</sup> to 2500/mm<sup>3</sup> defined by Equation 1, wherein carbon nanotubes in the carbon nanotube composition have a high bulk density while maintaining a bundled shape, and thus, are excellent in both dispersibility and productivity.
Resumen de: EP4586390A1
Provided in the present application are a battery cell, a battery, and an electric device. The battery cell includes a casing, an electrode assembly, and a current collecting member. The electrode assembly includes a first tab. The casing is used for accommodating the electrode assembly. The current collecting member includes a first connection portion and a second connection portion. The first connection portion is electrically connected to the first tab. The second connection portion is connected to the first connection portion and protrudes in a direction away from the electrode assembly. The second connection portion includes at least one first protrusion and at least one second protrusion. The height of the second protrusion is greater than the height of the first protrusion. The at least one first protrusion is welded to the casing. The at least one second protrusion is welded to the casing.
Resumen de: EP4586357A1
Disclosed in the present application are a casing assembly, a battery cell, a battery and an electrical apparatus. The casing assembly comprises a casing and first terminals, mounting holes being formed in the casing; each first terminal comprises a terminal body, a first limiting platform and a second limiting platform which are integrally formed, the terminal body passing through a mounting hole, and the first limiting platform and the second limiting platform being arranged at two ends of the terminal body in the axial direction of the mounting hole, and the first limiting platforms are in limiting fit with the outer side of the casing, and the second limiting platforms are in limiting fit with the inner side of the casing, such that the first terminals are riveted to the casing. The casing assembly of the present application facilitates assembly, and can improve the reliability and stability of connection between the first terminals and the casing.
Resumen de: WO2024226262A1
The present application discloses a composite fire insulation sheet, a composite plate, a battery pack housing and a battery pack. The composite fire insulation sheet comprises a first glass fiber sheet and a first aerogel composite expansion fire insulation layer. The first aerogel composite expansion fire insulation layer is arranged on at least one surface of the first glass fiber sheet and has a second glass fiber sheet. According to the composite fire insulation sheet of this aoplication, the expansion fireproof composition plays the role of flame retardant and fire prevention, while the aerogel composition is used to endow the sheet with excellent heat insulation property, such that the sheet can also perform the strong heat insulation performance.
Resumen de: EP4586332A1
The electrode assembly (100) includes a first electrode plate (10), a second electrode plate (20), and a separator (30). The first electrode plate (10) includes a first current collector (11) and a first tab (12). The first tab (12) extends from one side of the first current collector (11). In an extension direction of the first tab (12), the first tab (12) includes a first portion (121) and a second portion (122) which form a first step (13). The first portion (121) is cut before the formation of the electrode assembly (100), and the second portion (122) is cut after the electrode assembly (100) is formed. This ensures that a first uncoated foil region (15) can be fully cut off during a secondary cutting process to form a complete first tab (11), avoiding the problem of tab folding or reverse insertion during the formation of the electrode assembly (100).
Resumen de: EP4586351A2
A method for tracking a secondary battery manufacturing process is provided, which includes a plurality of sub-processes involving a respective semi-finished cell, wherein the plurality of sub-processes includes at least one sub-process in which a semi-finished cell is placed in a holder. The method comprises: obtaining a cell ID identifying the semi-finished cell; obtaining a holder ID identifying the holder in which the semi-finished cell is placed in a respective sub-process; and associating the cell ID with the holder ID.
Resumen de: EP4586335A1
An anode active material for a lithium secondary battery includes a silicon-based active material particle doped with a metal element and including pores. A porosity of the silicon-based active material particle is in a range from 0.4% to 3.5%. A lithium secondary battery includes the anode and a cathode facing the anode.
Resumen de: EP4586365A1
Die vorliegende Erfindung betrifft ein Trennverfahren zum Lösen einer stoffschlüssigen Verbindung zwischen einem Zellverbinder und einem Kontaktbereich einer Batteriezelle, so dass die Batteriezelle ohne weiterer Nacharbeitungsschritte erneut stoffschlüssig verbindbar ist, wobei auf die stoffschlüssige Verbindung eine Scherbelastung und/oder eine Schälbelastung und/oder eine Torsionsbelastung wirkt.
Resumen de: EP4586356A1
A lithium secondary battery according to the present invention includes a battery case, and an electrode assembly and an electrolyte received in the battery case, and has a Vd-40, which is a voltage retention rate during 40 C discharge represented by Equation 1 below, of 74% or greater: Vd−40%=Vf−40/Vi−40×100.In Equation 1 above, Vf-40 is a voltage of the lithium secondary battery after applying a discharge pulse at a rate of 40 C, and Vi-40 is a voltage of the lithium secondary battery before applying a discharge pulse at a rate of 40 C.
Resumen de: EP4586340A1
The present invention pertains to a lithium secondary battery and a method for manufacturing same. The lithium secondary battery comprises: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an electrolyte, wherein the positive electrode includes a lithium iron phosphate-based active material having an Amorphous-content Index (AI) defined by equation (1) of 0.28 or less, preferably 0.20-0.28, and more preferably 0.20-0.27.
Resumen de: EP4586334A1
An anode for a secondary battery according to exemplary embodiments of the present disclosure includes: an anode current collector; a first anode active material layer which is disposed on at least one surface of the anode current collector and includes natural graphite and artificial graphite; and a second anode active material layer which is disposed on the first anode active material layer and includes a silicon-based active material, a graphite-based active material and carbon nanotubes. Accordingly, a lithium secondary battery having improved rapid charge/discharge cycle lifespan characteristics may be implemented.
Resumen de: EP4586366A1
A battery pack includes battery cells arranged in an array to form a battery module layer. Multiple layers are vertically stacked with thermal management devices, such as active heat exchangers in the form of battery cold plates (120), above and below each layer to form a multi-layer battery stack that may be held in compression. The battery cold plates include liquid heat exchange medium passageways (124), the characteristics of which influence the heating and cooling capabilities of the cold plates. The battery cold plates, including at least arrangement and features of the passageways across the battery cold plate, are optimized to achieve desirable pressure drop and temperature distribution across the cold plates, among other benefits.
Resumen de: EP4586364A2
Die Erfindung betrifft ein Akkupack (1) zum lösbaren Verbinden mit einem Elektrogerät mit einem Akkupackgehäuse (2), das eine Gehäuseaußenseite (3) aufweist, mit zumindest einem im Akkupackgehäuse (2) angeordneten Akkumulator (23), mit einer im Akkupackgehäuse (2) angeordneten Steuerungseinheit (24) und mit einer an der Gehäuseaußenseite (3) ausgebildeten Geräteschnittstelle (4) zum lösbaren Verbinden des Akkupacks (1) mit dem Elektrogerät. Erfindungsgemäß umfasst das Akkupackgehäuse (2) ein erstes Gehäuseteil (5) und ein zweites Gehäuseteil (6). Das erste Gehäuseteil (5) umfasst eine erste Innenschnittstelle (7) und das zweite Gehäuseteil (6) eine mit der ersten Innenschnittstelle (7) korrespondierende zweite Innenschnittstelle (8), über die das erste Gehäuseteil (5) und das zweite Gehäuseteil (6) mechanisch und elektrisch miteinander verbindbar sind.
Resumen de: EP4586363A1
A rechargeable battery module is provided. The rechargeable battery module includes a busbar holder for covering battery cells, a busbar in the busbar holder for electrically connecting the battery cells, a flexible printed circuit in the busbar holder for transmitting a detection signal of a temperature or a voltage of one of the battery cells, a battery management system for receiving a transmission signal from a wireless communicator connected to the flexible printed circuit, and a printed circuit board on the flexible printed circuit for accommodating a circuit element on the flexible printed circuit for the wireless communicator.
Resumen de: EP4586456A1
A battery management device, including a first pack terminal (P+) and a second pack terminal (P-), a first battery terminal (B+) and a second battery terminal (B-) to which a battery (110) including a plurality of battery cells is coupled, a charge control switch (C-FET) and a discharge control switch (D-FET) coupled in series between the first pack terminal (P+) and the first battery terminal (B+), a current sensor (Rs) coupled between the first pack terminal (P+) and the first battery terminal (B+) or between the second pack terminal (P-) and the second battery terminal (B-), and a battery controller (120) configured to control the discharge control switch (D-FET), based on a battery current (Ib) detected through the current sensor (Rs), wherein the battery controller (120) is configured to repeat a process of, when detecting a generation of an overdischarge current, temporarily turning off the discharge control switch (D-FET) for a preset delay time and then turning on the discharge control switch (D-FET) back.
Resumen de: EP4585566A1
A positive electrode active material for rechargeable lithium batteries, a method of preparing the same, and a rechargeable lithium battery including the same are disclosed. The positive electrode active material includes: a nickel-based active material; a cobalt-containing coating layer on a surface of the nickel-based active material; and a boron-containing coating layer on a surface of the cobalt-containing coating layer, wherein the positive electrode active material has a specific surface area of 0.45 m<sup>2</sup>/g to 0.60 m<sup>2</sup>/g.
Resumen de: EP4586345A2
Provided is an electrode plate (210, 220) comprising: an electrode plate layer (202); a current collector layer (201) comprising: a base layer (E); a first conductive layer (F1) and a second conductive layer (F2) respectively on an upper surface of the base layer (E) and a lower surface of the base layer (E); a current collector part (201a) having at least one surface on which the electrode plate layer (202) is located; an extension part (201b) extending outwardly from the current collector part (201a); and a bent part (201c) connected to the extension part (201b), and bent twice or more for the first conductive layer (F1) to contact the second conductive layer (F2).
Resumen de: EP4586362A2
A rechargeable battery module includes a bus bar holder covering battery cells; a bus bar on the bus bar holder to electrically connect the battery cells; and a flexible printed circuit on the bus bar holder to transmit a signal that detects a voltage of the battery cell connected to the bus bar. The bus bar includes an extension portion protruding in one direction, and the flexible printed circuit includes a main body portion, a branch portion extending from the main body portion, and an expansion portion having an expanded area on the branch portion that is soldered to the extension portion.
Resumen de: EP4586378A1
Provided are a frame structure and an energy storage system, which relates to the field of energy storage devices. The frame structure includes an outer frame body (1) and a battery rack (2) disposed within the outer frame body (1). The battery rack (2) includes at least two supporting frames (21). A flexible fixing member (3) and a battery bracket (22) for bearing a battery are disposed between two adjacent supporting frames (21). One end of the flexible fixing member (3) is connected to a top frame (11) of the outer frame body (1), a middle portion of each battery bracket (22) is provided with a through hole (221), and another end of the flexible fixing member (3), e.g. steel rope, extends in a vertical direction (z) through the through hole (221). A periphery of the flexible fixing member (3) is provided with a supporting member (4) which carries the battery bracket (22).
Resumen de: EP4586389A1
This application provides a battery cell, a battery, and an electric apparatus. The battery cell includes an electrode assembly, a housing, and a current collecting member. The electrode assembly includes a first tab; the housing is configured to accommodate the electrode assembly; and the current collecting member is accommodated in the housing, the current collecting member is electrically connected to the first tab, and the current collecting member is connected to the housing by welding.
Resumen de: EP4586329A1
A rolling apparatus for manufacturing an electrode according to one embodiment of the present invention includes: a rolling member that rolls an electrode substrate when the electrode substrate passes through; and a non-coated portion drawing member that additionally draws the non-coated portion of the electrode substrate that has passed through the rolling member, wherein the non-coated portion drawing member is configured such that the relative position of the non-coated portion drawing member relative to the electrode substrate is adjusted according to the state of the non-coated portion of the electrode substrate.
Resumen de: EP4585944A1
Disclosed is an energy storage system which may includes a plurality of batteries; one or more power conversion system (PCS) connected with the batteries; and a control apparatus configured to monitor whether a fire occurs in the plurality of batteries.Here, the control apparatus may determine one or more second batteries within a predetermined distance range from a first battery where a fire has occurred and controls the one or more PCSs so that power stored in the one or more second batteries is discharged.
Resumen de: EP4586341A1
Provided are a carbon fluoride modification method, modified carbon fluoride and a lithium/carbon fluoride battery. The modification method comprises: mixing carbon fluoride with a composite solvent, subjecting same to a modification treatment, and then performing solid-liquid separation, so as to obtain modified carbon fluoride, wherein the composite solvent comprises water and an ether solvent. The composite solvent is used to modify carbon fluoride; and under the synergistic effect of water and the ether solvent, unstable components in a carbon fluoride material can be removed by means of reaction, thereby improving the chemical stability of the carbon fluoride material and reducing side reactions of carbon fluoride with an electrolyte solution, and therefore the storage stability of a lithium/carbon fluoride battery is improved. The modification method is simple and feasible, does not need the step of pre-charging, and is easy to implement and suitable for large-scale production.
Nº publicación: EP4585947A1 16/07/2025
Solicitante:
EVE POWER CO LTD [CN]
Eve Power Co., Ltd
Resumen de: EP4585947A1
The present disclosure discloses a current detection method, a capacity prediction method, and a screening method for battery self-discharge, a device and a medium. In the current detection method for battery self-discharge, a battery is charged with a tiny current by a regulated power supply under a preset condition. During a charging process, a charging current provided by the regulated power supply is adjusted until a voltage of the battery remains stable. When the voltage of the battery to be tested remains stable, the charging current is determined as a self-discharge current of the battery under the preset condition.
BOPI
Sede Electrónica
