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1452
resultados
Última actualización
06/05/2025 [07:23:00]
Resultados 1350 a 1375 de 1452
Resumen de: EP4542730A1
A battery pack includes a battery housing having a battery cell accommodating space portion accommodating a plurality of battery cells, a lower space portion under the battery cell accommodating space portion, and a battery cell base portion between the lower space portion and the battery cell accommodating space portion and supporting the plurality of battery cells. The battery cell base portion includes: a base melting portion configured to melt if an adjacent one of the battery cells is heated to a reference temperature or greater; and a base non-melting portion configured to not melt if the adjacent one of the battery cells is heated to the reference temperature or greater.
Resumen de: EP4542676A1
The present application relates to a negative electrode composition, a negative electrode for a lithium secondary battery, and a lithium secondary battery including the negative electrode.
Resumen de: EP4542675A1
The present application relates to a method for manufacturing an electrode for a lithium secondary battery, an electrode intermediate, and a lithium secondary battery including an electrode.
Resumen de: EP4542684A1
An additive represented by Chemical Formula 1, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery are disclosed:The description of Chemical Formula 1 follows the specification.
Resumen de: EP4542699A1
A separator clamping device includes a body portion including a vacuum passage, the vacuum passage being connected to a vacuum device, a first separator fixing portion on an upper surface of the body portion, the first separator fixing portion being connected to the vacuum passage and being configured to fix a separator onto the upper surface of the body portion by a vacuum suction, and a second separator fixing portion on a side surface of the body portion, the second separator fixing portion being connected to the vacuum passage and being configured to fix the separator onto the side surface of the body portion by a vacuum suction.
Resumen de: EP4542715A1
This application discloses a nonaqueous electrolyte solution, a secondary battery containing the nonaqueous electrolyte solution, and an electrical device. The nonaqueous electrolyte solution includes: a compound A including a saturated five-membered ring or six-membered ring and at least one fluorine-containing substituent, where the ring contains 1 or 2 oxygen atoms as ring atoms, and a ring carbon atom connected to the oxygen atom in the ring is not directly replaced by fluorine; and a compound B including a saturated five-membered ring or six-membered ring that contains 1 or 2 oxygen atoms as ring atoms, where at least one ring carbon atom connected to the oxygen atom in the ring is directly replaced by at least one fluorine atom. The nonaqueous electrolyte solution can improve cycle performance and low-temperature discharge capabilities of the secondary battery.
Resumen de: EP4542685A2
A positive electrode material, a positive electrode sheet, and a battery are provided in the disclosure. The positive electrode material includes multiple first particles. Each of the multiple first particles includes a core and a shell. The shell is wrapped around a periphery of the core. The core includes lithium iron phosphate. The shell includes lithium iron phosphate and a doping element. The doping element is a transition metal element, and a mass fraction of the transition metal element in the shell gradually increases in a direction from the core towards the shell. When the positive electrode material is applied to the positive electrode sheet and the positive electrode sheet is assembled in the battery, the battery has relatively high capacity utilization performance, energy efficiency, and rate performance.
Resumen de: EP4542704A2
The present invention provides a positive electrode active material, a positive electrode sheet and a lithium-ion battery. When the battery, which is formed by the positive electrode active material and a lithium metal negative electrode, is discharged to a discharge cut-off voltage of 3.0 V at a rate of less than 1 C after being charged to a SOC of 100% at a rate of less than 1 C with a charge cut-off voltage of 4.55 V to 4.65 V, the number N of discharge peaks in the capacity-voltage differential curve of the battery is not less than 4. Under high-voltage condition, the positive electrode active material not only has excellent specific capacity and cycling performance, but also has more prominent rate performance.
Resumen de: EP4542722A1
A state-monitoring-based fall-into-water protection method and a related device are provided in the present disclosure, are applied to an intelligent storage battery box. The method includes the following. An acceleration of the intelligent storage battery box and a humidity of an environment in which the intelligent storage battery box is located are detected first. A space occupation state of the intelligent storage battery box is determined according to the acceleration and the humidity. The space occupation state includes a non-fall-into-water state and a fall-into-water state. If the space occupancy state of the intelligent storage battery box is the fall-into-water state, a fall-into-water protection start instruction is generated, and a fall-into-water floatable apparatus is controlled to inflate a floatable airbag in a folded state according to the fall-into-water protection start instruction. Therefore, a fall-into-water protection measure can be taken by the intelligent storage battery box in time, thereby ensuring safety of a mobile power source built in the intelligent storage battery box, and improving comprehensiveness and intelligence of protecting the built-in mobile power source by the intelligent storage battery box.
Resumen de: EP4542721A1
The present invention relates to a negative electrode for a lithium secondary battery, a lithium secondary battery comprising the same, and a lithium secondary battery system for the same, wherein the negative electrode for the lithium secondary battery comprises certain components of silicon-containing particles and aluminium-containing particles, and is therefore capable of implementing a predetermined volume resistance. Accordingly, the lithium secondary battery comprising the negative electrode can allow a predetermined current to leak while implementing a suitable insulation on the surface of the negative electrode in the event of an internal short circuit, thereby preventing a meltdown phenomenon and/or rapid heating of the lithium secondary battery due to an internal short circuit.
Resumen de: EP4542757A1
A secondary battery (10) includes a case body (11), a sealing member (12) closing the case body (11), an electrode body (2) housed in the case body (11) and constituted of positive and negative electrode bodies (21, 22) stacked with separators (23) interposed therebetween, and positive and negative collector terminals (4) each including a base portion (41) located in end portions of the sealing member (12) and connected thereto via an insulating member (3), a base adjoining portion (42) adjacent to the base portion (41), separated from or separably in contact with the insulating member (3), and a lead portion (43) with a lead upper end portion (43a) connected to the base adjoining portion (42) and a lead lower end portion (43b) bonded to the electrode body (2). The base adjoining portion (42) or the lead upper end portion (43a) includes an easily-deformable portion (44) that can be deformed without melting with respect to the base portion (41) to allow displacement of the lead lower end portion (43b) in the long-side direction of the sealing member (12).
Resumen de: EP4542731A1
The present application discloses a heat management assembly, a battery, and an electrical apparatus. The heat management assembly has a liquid inlet and a liquid outlet and includes a heat exchange plate and a first partition plate. The heat exchange plate is formed with a plurality of heat exchange channels that are arranged in a first direction and allow a heat exchange medium to flow, the heat exchange channels extend in a second direction, and the first direction intersects with the second direction. The first partition plate is disposed at one end of the heat exchange plate in the second direction, and the first partition plate is to block a portion of the liquid inlet, so that at least part of the heat exchange channels are connected in series with one another, thereby mitigating uneven heating of battery cells, improving the temperature consistency of the battery cells, and enhancing the heat exchange effect of the battery.
Resumen de: EP4542679A2
An anode and a lithium battery including the same, wherein the anode includes an anode current collector, an electrodeposition induction layer on the anode current collector and including a first carbon-based material, and a protective layer on the electrodeposition induction layer, wherein the first carbon-based material is a nitrogen-containing amorphous carbon compound, and a content of the nitrogen element is more than or equal to about 1 wt% with respect to the total weight of the electrodeposition induction layer.
Resumen de: EP4542751A2
The present invention relates to a battery with no roll groove. The battery with no roll groove comprises a cap, an outer washer, a casing and a rolled core, wherein the rolled core is accommodated in the casing, and the cap is electrically connected to the rolled core; a top portion of the casing is bent inward and tightly presses the outer washer against the cap, thereby fixing the rolled core in the casing; the casing has no roll groove structure. The outer washer comprises an outer washer top portion, the outer washer top portion being an annular structure, and the cap being exposed through a central round opening; and an outer washer bottom portion, disposed between the cap and the casing. The present invention reduces the overall height of structures such as the cap while effectively fixing and sealing the battery rolled core, so as to increase the height of the rolled core and the amount of electrolyte injected, and thereby increase the total capacity of the battery, while also reducing production costs.
Resumen de: EP4542761A1
The present invention relates to an electrode tab for a secondary battery, the electrode tab including: a first member and a second member having different resistances, the second member being located in at least a portion of the electrode tab and having a resistance greater than that of the first member; and a cutoff part configured to be melted by its own resistance heat to interrupt current when an overcurrent of 10 A or higher flows.
Resumen de: EP4542743A1
Die Erfindung betriff Vorrichtung zum Handhaben von Bauteilen, insbesondere zylindrischen Batteriezellen, mit einer Magazineinrichtung (80), die ein Trägerelement (54) und zumindest zwei darauf angeordnete Magazine (40, 42) aufweist, wobei jedes Magazin verlagerbar, vorzugsweise drehbar, auf dem Trägerelement (54) gehalten ist und jeweils eine Aufnahmeeinheit (82) mit mehreren Aufnahmeplätzen (84) für jeweils ein Bauteil (16, 18) aufweist, einer ersten Antriebseinheit (98), die vorzugsweise mit dem Trägerelement (54) gekoppelt ist, um ein Magazin in eine erste Position (41), Befüllposition, und in eine zweite Position (43), Übergabeposition, zu bewegen; und einer Befülleinheit (36), die ausgelegt ist, ein Bauteil in einen Aufnahmeplatz (84) des in der Befüllposition positionierten Magazins (40) zu bringen; wobei jedem Aufnahmeplatz (84) ein erstes Element (86) zur seitlichen Abstützung eines Bauteils und ein zweites Element (88) zur senkrechten Abstützung des Bauteils (16, 18) zugeordnet ist; undwobei das erste Element (86) und das zweite Element (88) relativ zueinander verlagerbar sind, um das im Aufnahmeplatz (84) gehaltene Bauteil aus der Aufnahmeposition in eine Übernahmeposition zu bringen, in der das Bauteil von einer nachgeordneten Handhabungseinrichtung (46, 44) aufnehmbar ist. Die Erfindung betrifft ferner eine Vorrichtung zum Umsetzen von Bauteilen, ein Verfahren zum Handhaben von Bauteilen und ein Verfahren zum Umsetzen von Bauteilen.
Resumen de: EP4542740A2
The present utility model provides a battery current collector plate and a battery, the current collector plate comprising a current collector plate body and a weld zone, the current collector plate body having a first face for contacting a rolled core, and a second face opposite the first face; at least a portion of the second face is provided with the weld zone, and the weld zone has a lower laser reflectivity than the first face. In the present utility model, the weld zone of low laser reflectivity is provided on the current collector plate, such that a surface of the current collector plate absorbs laser energy more effectively, thereby increasing the efficiency and precision of welding. At the same time, the weld zone of low laser reflectivity can also reduce the temperature and the amount of heat generated during laser welding, thereby safeguarding the performance and stability of a rolled core assembly.
Resumen de: EP4542737A1
A secondary battery includes a unit cell including an electrode assembly provided with a tab bundle and having a round portion, and a cap member in the vicinity of the round portion of the electrode assembly. The cap member includes a pair of first surfaces which are parallel to an upper surface and a lower surface of the electrode assembly, a pair of second surfaces which are parallel to both side surfaces of the electrode assembly, one third surface which connects the pair of first surfaces and the pair of second surfaces, and a contact member provided in an internal space formed by the pair of first surfaces, the pair of second surfaces, and the one third surface and in contact with the round portion of the electrode assembly. The third surface is provided with a through hole through which the tab bundle passes.
Resumen de: EP4542703A1
The present application provides a pole piece, and a battery cell, a battery and an electrical device related thereto. The pole piece comprises a current collector, and an active material layer disposed on at least one surface of the current collector. The active material layer comprises an active material and a polymer, the active material layer satisfies formulas (1) to (3). The polymer serves as a component of the active material layer, and can form a uniform high-infiltration point in the active material layer, uniformly increasing the infiltration performance of the active material layer. Accordingly, the overall liquid absorption speed of the active material layer is increased, and cycle performance of a battery cell is increased. λ=1−P1P2
Resumen de: EP4541639A1
Die Offenbarung betrifft ein stapelbares Batteriemodul für ein Batteriesystem eines batteriebetriebenen Fahrzeugs, umfassend: eine Mehrzahl von Batteriezellen; ein Batteriemodulgehäuse, welches um die Mehrzahl von Batteriezellen umlaufend angeordnet ist; wobei beim Stapeln mehrerer Batteriemodule zu einem Batteriemodulstapel die Batteriemodulgehäuse der jeweiligen Batteriemodule ineinandergreifen und den Batteriemodulstapel seitlich umschließen. Gemäß einem ersten Aspekt umfasst das Batteriemodul ein oder mehrere Zentrierelemente, die an einer oder mehreren Außenseiten des Batteriemodulgehäuses angeordnet sind. Die Zentrierelemente sind ausgebildet, das gestapelte Batteriemodul in einem Gehäuse des Batteriesystems zu befestigen und zu zentrieren. Gemäß einem weiteren Aspekt weist das Batteriemodulgehäuse ein seitlich umlaufendes Federelement und ein seitlich umlaufendes Nutelement auf, welches zu dem Federelement korrespondiert, wobei beim Stapeln des Batteriemoduls mit einem weiteren Batteriemodul zu einem Batteriemodulstapel das Federelement des Batteriemoduls in das Nutelement des weiteren Batteriemoduls eingreift und einen Kühlmittelkanal zwischen dem Batteriemodul und dem weiteren Batteriemodul ausformt.
Resumen de: EP4542689A2
Disclosed are an electrode material for a secondary battery and a method of manufacturing the electrode material, capable of reducing lithium side reactions, simplifying processes, and reducing cracks caused by external impact. The electrode material for a secondary battery includes a bonding sheet, an active material layer, and a current collector. The bonding sheet includes a plurality of through-holes penetrating first and second surfaces opposite to each other. The active material layer includes a first layer covering the first surface, a second layer covering the second surface, and a connecting layer formed inside the through-holes to connect the first layer and the second layer. The current collector is attached to the second layer.
Resumen de: EP4541772A1
The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material, in which low energy density per unit volume and low stability of an overlithiated lithium manganese-based oxide are improved, and a lithium secondary battery including the same.
Resumen de: EP4542729A1
Ein Batteriesystem, insbesondere für ein Fahrzeug, umfasst ein Batteriesystemgehäuse (12), wobei das Batteriesystemgehäuse (12) einen Lufteintrittsbereich (18) und einen Luftaustrittsbereich (22) für das Batteriesystemgehäuse (14) durchströmende Luft aufweist, sowie wenigstens eine Batterieeinheit (14), wobei die wenigstens eine Batterieeinheit (14) in dem Batteriesystemgehäuse (12) von das Batteriesystemgehäuse (12) durchströmender Luft umströmbar aufgenommen ist.
Resumen de: EP4542702A1
A device for holding and moving lithium battery cells (2), in particular during a forming step, comprising a supporting base (9) with a plurality of bays (11) for the cells, a holding member (10) which can be bound to the supporting base (9) above said bays (11) and an expansion circuit (25) configured to receive, in use, gaseous substances emitted from access ports (4) of the cells (2) when the holding member (10) is in the working configuration. The expansion circuit (25) comprises a connecting inlet (26) at each bay (11), configured to couple gas-tight to the access port (4) of the cell (2) located in the bay (11). The expansion circuit (25) also comprises one or more expansion chambers (29) and each connecting inlet (26) is fluidly connected with at least one of the expansion chambers (29).
Nº publicación: EP4542750A1 23/04/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4542750A1
A battery cell according to an embodiment of the present disclosure includes an electrode assembly including a first electrode, a second electrode, and a separator interposed therebetween, a battery housing configured to receive the electrode assembly through an opening formed on one side thereof, and a housing cover configured to cover the opening and having a venting portion configured to break when internal pressure of the battery housing increases to a predetermined level or more, wherein the venting portion includes an upper notched portion provided on the upper surface of the housing cover and a lower notched portion provided on the lower surface of the housing cover, and wherein the upper notched portion and the lower notched portion are provided in a staggered state.
BOPI
Sede Electrónica
