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185
results.
Updated on
20/08/2026 [07:53:00]
Results 125 to 150 of 185
Absstract of: EP4794156A1
The present application provides an energy storage system and a control method for the energy storage system, applied to the technical field of energy storage. The energy storage system comprises a plurality of battery clusters and a plurality of control units, and the battery clusters are in one-to-one correspondence with the control units. Each control unit is used for: when a battery parameter is not lower than a first battery parameter, controlling the corresponding battery cluster to discharge at constant current; and when the battery parameter is lower than the first battery parameter, controlling the corresponding battery cluster to charge at constant current, wherein the first battery parameter is a battery parameter when the capacity of the battery cluster reaches a safe capacity lower limit. By controlling the battery clusters meeting conditions in the energy storage system to charge or discharge at the same constant current, the output power or input power of the energy storage system reaches the maximum power that the energy storage system can currently reach.
Absstract of: EP4794159A1
0001 Disclosed in the present invention is an energy storage system switching management method, comprising: determining a working state of each battery system on the basis of the current of each battery system, wherein the working state includes a static state, a charging state and a discharging state; for the battery systems in the static state, carrying out static open-circuit voltage calibration on the battery systems; for the battery systems in the charging state, carrying out switching management on the charging process of each battery system on the basis of the total battery voltage or the state of charge of each battery system; and for the battery systems in the discharging state, carrying out switching management on the discharging process of each battery system on the basis of the total battery voltage or the state of charge of each battery system. Therefore, according to the present invention, different working states can be accurately distinguished, and then corresponding switching management is carried out on the basis of different working conditions, so that the efficiency is relatively high, and the effect of switching management is good.
Absstract of: EP4794064A1
0001 Some embodiments of this application provide a secondary battery and an electrochemical device. The secondary battery includes an electrode assembly and a shell. The shell is configured to accommodate the electrode assembly. The shell includes a first wall and a second wall opposite to each other along a thickness direction of the electrode assembly. The first wall is provided with a first protruding portion that protrudes toward an inside of the shell. The shell further includes a third wall. The third wall connects the first wall and the second wall. The third wall is spaced apart from the electrode assembly along a first direction. The first direction is perpendicular to a thickness direction of the electrode assembly. Along the thickness direction of the electrode assembly, a dimension of an inner surface of the third wall is L<1>, a thickness of the electrode assembly is L<2>, and a height by which the first protruding portion protrudes beyond an inner surface of the first wall is L<3>, satisfying: L<3> > L<1> - L<2>. The technical solutions provided herein can improve the reliability and safety performance of the secondary battery.
Absstract of: EP4794053A1
0001 An immersion-type energy storage device includes, a housing having an accommodation space therein, one or more battery cells accommodated in the accommodation space of the housing, insulating oil that fills the accommodation space to immerse the battery cells and cool the battery cells, a temperature sensor array including a plurality of temperature sensors installed at different locations that are vertically spaced apart in the accommodation space to detect temperature, and a battery management apparatus configured to determine whether a defect has occurred in the insulating oil based on whether a pattern of a temperature signal detected by the plurality of temperature sensors has changed over time.
Absstract of: EP4794042A2
0001 The present application discloses a secondary battery (100) and an electronic device. A first current collector (211) is provided with a first foil-free zone (211a). A first tab (30) includes a first portion (31) and a second portion (32) that are connected to each other. The first portion (31) is disposed on the first foil-free zone (211a). The second portion (32) extends out of a first electrode sheet (21). A first adhesive layer (50) is bonded between the first foil-free zone (211a) and the first portion (31). The first tab (30) includes a first surface (30a) and a second surface (30b) that are oppositely arranged. The first surface (30a) of the first portion (31) is provided with a plurality of first protrusions (30c). The first adhesive layer (50) is partially embedded between two adjacent first protrusions (30c). The second surface (30b) of the first portion (31) is provided with a plurality of second protrusions (30d). Along a first direction (Z), projections of at least one of the second protrusions (30d) at least partially overlap with projections of the first protrusions (30c), and/or projections of at least one of the second protrusions (30d) are located between projections of two adjacent first protrusions (30c). The connection process between the first tab (30) and the first current collector (211) can be simplified, energy density can be increased, and the connection strength between the first tab (30) and the first current collector (211) can be improve
Absstract of: EP4794098A1
0001 Battery pack (1) comprising a housing (2) defining a space (S) for housing at least a battery module (3), the battery module (3) comprising a support system (4) defining a space (S') for housing a plurality of battery cells (10) and a venting system (4) defining a venting channel (V) fluidly connected to the space (S'), the housing (2) comprising venting means (23) configured to allow selectively communication between said space (S) and the environment, the battery pack (1) comprising a labyrinthic system (30) fluidly connecting the venting channel (V) to venting means (23), the labyrinthic system (30) providing an obliged path for a flow (F) for gas/flames igniting from any among the battery cells (10) towards the venting means (23) of a predetermined length.
Absstract of: EP4794164A1
System zum Versorgen von Akkumulatoren, insbesondere als Energiespeicher einer Werkzeugmaschine, mit elektrischer Energie.Erfindungsgemäß enthält das System wenigstens eine Regel- und Steuereinheit mit wenigstens einer Eingangsschnittstelle zur Aufnahme elektrischer Energie, wenigstens einer Ausgabeschnittstelle zur Abgabe elektrischer Energie, wenigstens einen Gleichrichter, wenigstens eine erste mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens eines ersten und zweiten Akkumulators mit elektrischer Energie sowie eine zweite mit der Regel- und Steuereinheit wenigstens elektrisch verbindbaren Anschlusseinrichtung zum Versorgen wenigstens einer Aufbewahrungseinheit mit elektrischer Energie, wobei jede Aufbewahrungseinheit wenigstens eine Akku-Schnittstelle zum Versorgen wenigstens eines Akkumulators mit elektrischer Energie enthält.Verfahren zum Steuern und Regeln des Systems zum Versorgen von Akkumulatoren mit elektrischer Energie.
Absstract of: EP4793034A1
0001 The present invention relates to a composite material (1), in particular for thermal insulation of a rechargeable battery and/or for preventing damage in case of a thermal runaway of a rechargeable battery, preferably a traction battery of an electric vehicle. The composite material (1) has two textile layers (2,3), wherein one of the layers a nonwoven fabric (2), in particular a veil, and one of the textile layers is a woven fabric (3), and wherein the nonwoven fabric layer (2) is completely penetrated with a ceramic penetration medium (4), whereby the woven fabric layer (3) is partly penetrated with the ceramic penetration medium (4). 0002 According to a further aspect, the present invention relates to a method for producing the composite material.
Absstract of: EP4793082A1
A control system includes: a communication device that acquires information indicating the step currently being performed in a vehicle in the manufacturing process of the vehicle; a server that determines the mode of ripple heating control based on the information acquired by the communication device; and a vehicle control unit that performs ripple heating based on the mode determined by the server.
Absstract of: EP4794063A1
0001 The present disclosure refers to a battery pack, including a battery pack housing; a battery cell stack including a plurality of rechargeable battery cells, wherein the battery cell stack is accommodated within the battery pack housing; a liquid release system positioned above the rechargeable battery cells, wherein the liquid release system is configured to release a liquid toward the rechargeable battery cells when a release condition is detected; and a retention structure being configured for retaining the liquid released by the liquid release system, wherein the retention structure is in direct contact with an outer surface of the rechargeable battery cells.
Absstract of: EP4794051A1
Die Erfindung betrifft eine Akkumulatorzelle für einen Bleiakkumulator, mit einem Zellengehäuse (2) und einem das Zellengehäuse (2) fluiddicht verschließenden Zellendeckel (3), wobei innerhalb des Zellengehäuses (2) einander abwechselnd positive und negative Elektrodenplatten (5, 4) sowie ein die Elektrodenplatten (5, 4) umgebender Elektrolyt angeordnet sind, wobei die positiven und die negativen Elektrodenplatten (5, 4) jeweils an wenigstens einen gemeinsamen Pol (10, 11; 8, 9) mittels jeweiliger Polbrücke (7, 6) elektrisch angeschlossen sind und wobei der positive Pol (10, 11), der über die zugehörige Polbrücke (7) mit den positiven Elektrodenplatten (5) verbunden ist, aus einer Bleilegierung in Form von Hartblei gebildet ist, dadurch gekennzeichnet, dass die Polbrücke (7), die die positiven Elektrodenplatten (5) mit dem positiven Pol (10, 11) verbindet, aus Reinblei gebildet ist, und dadurch, dass eine Rückhalteeinrichtung vorgesehen ist, die dazu eingerichtet ist, vom positiven Pol (10, 11) abgeplatzte Partikel aufzufangen und so einen Kontakt der Partikel mit den Elektrodenplatten (5, 4) zu verhindern.
Absstract of: EP4794088A1
A cell cover plate, a cell, and a battery pack are provided by the present disclosure. The cell cover plate includes a cover plate body. The cover plate body includes a top surface and a bottom surface opposite to each other. The cover plate body is provided with a liquid injection hole. The liquid injection hole penetrates through from the top surface to the bottom surface. The bottom surface is configured to face a cell pack, at least a partial region on the bottom surface is configured as a flow guiding surface. The flow guiding surface is adjacent to the liquid injection hole. The flow guiding surface is inclined from the liquid injection hole in a direction away from the top surface.
Absstract of: EP4794085A1
Provided in the present invention is a low-impedance storage battery, which comprises: an accommodation case, which is internally provided with an accommodation space; a first energy storage module, which is used for accumulating or supplying electric energy and is provided in the accommodation case; and a second energy storage module, which is used for storing or supplying a short-time large current and is provided in the accommodation case, the first energy storage module and the second energy storage module being electrically connected to each other. The second energy storage module at least comprises a circuit board, the circuit board having a second positive electrode and a second negative electrode. One side of the accommodation case is provided with a first electrical connector and a second electrical connector. One end of the first electrical connector and one end of the second electrical connector pass out of the accommodation case, and the other end of the first electrical connector and the other end of the second electrical connector are located in the accommodation case. The second positive electrode and the second negative electrode on the circuit board of the second energy storage module are respectively fixed at one end of the first electrical connector and one end of the second electrical connector in the accommodation case.
Absstract of: EP4794110A1
0001 This application provides a battery, a battery pack, and an energy storage system. The battery includes a housing, an electrode assembly, a Mylar film, an insulating porous film, and a bottom tray. The electrode assembly, the Mylar film, the insulating porous film, and the bottom tray are all accommodated in the housing. A bottom surface of the electrode assembly, the Mylar film, the insulating porous film, and the bottom tray are sequentially stacked, and the insulating porous film on the bottom surface includes a plurality of through holes. The through hole of the insulating porous film can reduce flow of dust that falls off from the electrode assembly between the electrode assembly and the housing, and reduce a possibility that a micro short circuit is formed between the bottom surface of the electrode assembly and the housing.
Absstract of: EP4794090A1
The present application relates to the technical field of new energy batteries, and in particular to a battery pack with multiple contact points for positive and negative terminals, which includes a battery pack housing, chutes are defined on two side walls of the battery pack housing, battery-side contact elements are located in the chutes, ribs for insertion into the chutes are arranged on a device housing of a charging and discharging device, and tool-side contact elements for cooperating with the battery-side contact elements are arranged on the ribs.
Absstract of: EP4794050A1
0001 This application discloses a cylindrical battery and an electronic device. The cylindrical battery includes a housing and an electrode assembly. The electrode assembly is disposed in the housing. The electrode assembly includes a first electrode plate. The first electrode plate includes a first blank foil portion. The first blank foil portion is formed of a first part and a second part. The first part extends along a winding direction of the electrode assembly. The second part is formed by bending the first blank foil portion toward such a direction that a terminating end of the first electrode plate is closer to a first end wall. The second part is connected to the first part and the first end wall of the housing. A region of connection between the second part and the first end wall is a first region. A first edge is formed at a junction between the first part and the second part. The first part includes a second edge and a third edge. The first edge intersects the third edge to form a first fold point. A minimum distance between the first end wall and the second end wall is H, an inner radius of a circumferential wall of the housing is R, and a minimum distance from the first fold point to the first region is L<1>, satisfying H + R ≤ L<1>. By providing the second part, this application improves the lifespan of the cylindrical battery.
Absstract of: EP4794084A1
The present application provides a protective plate, a battery box, a battery module, and a battery pack. The protective plate includes a first protective layer, a reinforcement layer, a buffer layer, and a second protective layer stacked along a first direction. The reinforcement layer and the buffer layer are stacked between the first protective layer and the second protective layer. The buffer layer includes multiple first buffer grooves and multiple second buffer grooves, the multiple first buffer grooves and the second buffer grooves are arranged on two opposite sides of the buffer layer, and the multiple first buffer grooves and the multiple second buffer grooves are distributed in a staggered manner.
Absstract of: EP4794070A1
Disclosed are a secondary battery (100), a battery pack (1002), and an electronic device (1000). The secondary battery (100) includes: a housing (200), including an end wall (111) and a side wall (109) surrounding the end wall (111), the end wall (111) having an opening portion (111V); an electrode assembly (120), including positive and negative electrode sheets (10, 20) and a separator (122); an electrode terminal (160), passing through the opening portion (111V) and fixed on the end wall (111); and a current collecting plate (202), disposed between the electrode assembly (120) and the end wall (111) and electrically connecting the electrode assembly (120) and the electrode terminal (160). Along a radial direction of the electrode assembly (120), the electrode assembly (120) includes a first region (Ra) and a second region (Rb). A minimum distance between a surface of the current collecting plate (202) facing the electrode assembly (120) and a first end (16u) of a negative electrode active material layer (16) along a first direction (D1) is LA mm, LA mm ≥1.5 mm.
Absstract of: WO2025096234A1
A battery power station including a top panel, a base, and side panels which define a structure, and a first removable end panel and a second removable end panel. The battery power station includes an electronics compartment within the structure including at least one printed circuit board, and a battery compartment within the structure configured to receive a battery pack module. The base includes lateral protrusions having a hook structure configured to interdigitate with corresponding hook structure of the side panels forming a seal between the base and the side panels. The first and second removable end panels include a shell having protrusions extending from an inner surface of the shell and around a periphery of the shell, the protrusions configured to create a seal with the structure forming a seal between the structure and the first and second removable end panels.
Absstract of: US2025118756A1
A cathode electrode assembly is disclosed, the cathode electrode assembly comprising an active material, a current collector, a conductive additive substance, and a polynorbornene-based (PNB) polymer binder configured to bind the active material and the conductive additive substance and maintain electrical contact between the active material and the conductive additive substance with the current collector. An alternative cathode electrode assembly comprising active material, a current collector, a conductive additive substance, a PNB polymer binder, and at least one polyacrylic acid (PAA) side chain configured to interface with the PNB polymer binder is also disclosed. A functional group is further disclosed, the functional group being configured to interface with a binder in a cathode electrode assembly of an electric battery system, the functional group comprising at least one PAA side chain.
Absstract of: WO2025076568A2
The invention relates to an accumulator cover (3) for an accumulator (1). The accumulator cover (3) comprises: - a cover plate (9) with an outer side (11) and an inner side (13) and a through-opening (16) that penetrates the cover plate (9) between the outer side (11) and the inner side (13); - a rivet (17) that projects through the through-opening (16) of the cover plate (9); - a pole plate (18), wherein the pole plate (18) is arranged on the outer side (11) of the cover plate (9) and is electrically conductively coupled to the rivet (17); - a separating plate (19), wherein the separating plate (19) is arranged on the outer side (11) of the cover plate (9) between the pole plate (18) and the cover plate (9). A current collector (20) is designed as a component independent of the rivet (17), wherein the current collector (20) is electrically conductively coupled to the rivet (17).
Absstract of: EP4794046A1
0001 A separator includes a base film and an organic coating disposed on at least one surface of the base film. In a 10µm×5µm region of the organic coating, based on a mass of the organic coating, a mass percentage of a carbon element in the organic coating is W1, a mass percentage of a fluorine element in the organic coating is W2, and 0.45 ≤ W1/W2 ≤ 6. The separator further includes an inorganic coating, the inorganic coating is disposed between the base film and the organic coating, the inorganic coating has a thickness of d3, the base film has a maximum pore size of r1, and 0.01 ≤ r1/d3 ≤ 0.21.
Absstract of: EP4794105A1
An electrode sheet (100), a secondary battery (500), and an electronic device (1000) are provided. The electrode sheet (100) includes: an electrode sheet body (160), including a current collector (110) and an active material layer (130), the current collector (110) has two opposite surfaces, and the two surfaces are respectively coated with active material layers (130); and a tab (150), extending from the electrode sheet body (160), the tab (150) is provided with a second stiffener region (192) and a first stiffener region (191), the second stiffener region (192) is disposed between the first stiffener region (191) and the active material layer (130), a stiffener (190) is disposed in the first stiffener region (191) and the second stiffener region (192), a depth (H1) of the stiffener (190) in the first stiffener region (191) is greater than a depth (H2) of the stiffener (190) in the second stiffener region (192).
Nº publicación: EP4794057A1 19/08/2026
Applicant:
EVE ENERGY CO LTD [CN]
Eve Energy Co., Ltd.
Absstract of: EP4794057A1
A liquid cooling assembly and a battery pack are provided. The liquid cooling assembly includes a plurality of liquid cooling plates arranged at intervals and a main pipe. An installation space for mounting at least one heat-generating element is formed between two adjacent liquid cooling plates. Each of the liquid cooling plates includes a flow passage portion and a plurality of nozzles in communication with the flow passage portion. The main pipe includes a plurality of connectors, and the connectors are in one-to-one expansion connection to the nozzles and are inserted into the nozzles. An inner wall of each of the connectors is provided with a support ring that overlaps each of the nozzles (11).
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