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1358
results.
Updated on
24/12/2025 [07:24:00]
Results 375 to 400 of 1358
Absstract of: EP4664598A1
Provided is a secondary battery having improved structural stability. The electrode assembly includes a plurality of negative electrodes each including a negative electrode tab and a plurality of positive electrodes arranged alternately with the negative electrodes and each including a positive electrode tab, a first current collector electrically connected to the negative electrodes, and a first insulator disposed below the first current collector, wherein negative electrode tabs of at least some of the plurality of negative electrodes overlap in a first position to form a first negative electrode tab stack and negative electrode tabs of the others of the plurality of negative electrodes overlap in a second position, different from the first position, to form a second negative electrode tab stack, and the first insulator is disposed adjacent to the first negative electrode tab stack and the second negative electrode tab stack simultaneously.
Absstract of: EP4664620A1
The present disclosure relates to the technical field of batteries, and more particularly relates to a battery, a battery device and electric equipment. The battery includes a battery housing (10), wherein a surface of the battery housing (10) is provided with an insulating coating (20), and at least a part of a surface area of the battery housing (10) has a single-layer insulating coating, with a unit average size in the single-layer insulating coating being 1 mm<sup>2</sup> to 10 mm<sup>2</sup>.
Absstract of: EP4664588A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being W1, a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4664587A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being W1, a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4664586A2
Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and at least one electrode assembly. The electrode assembly is accommodated within the housing. The housing is a right parallelepiped, a size of the housing in a first direction being a size of the housing in a second direction being T1, a size of the housing in a third direction being H1, and the first direction, the second direction, and the third direction being mutually perpendicular. The housing includes a first wall and a second wall disposed opposite each other along the first direction, a third wall and a fourth wall disposed opposite each other along the second direction, and a fifth wall and a sixth wall disposed opposite each other along the third direction, a sum of thicknesses of the first wall and the second wall being a, a sum of thicknesses of the third wall and the fourth wall being b, a sum of thicknesses of the fifth wall and the sixth wall being c, and (W1-a)*(T1-b)*(H1-c)/(W1*T1*H1)≥90%. This allows the volumetric energy density of the battery cell to be increased under the same chemical material system.
Absstract of: EP4663779A1
A method for producing a steel strip for a battery case is provided. The steel strip for a battery case includes the following chemical composition in percentage by mass: carbon: 0.003-0.006%, silicon: ≤0.03%, manganese: 0.35-0.45%, titanium: 0.040-0.050%, aluminum: 0.040-0.060%, phosphorus: ≤0.020%, sulfur: ≤0.012%, nitrogen: ≤0.0040%, and the balance of iron and other inevitable impurities, wherein 7>Ti/(C+N)>5. The process flow of the production is as follows: hot metal pretreatment→ converter smelting → LF refining → RH treatment → continuous pouring → hot rolling → acid pickling → cold rolling → continuous annealing → finishing. By means of designing the chemical composition, the Δr value of strip steel is reduced, and the isotropy and processability of the strip steel are improved; and by means of the process, precise control over steel composition and effective control over the amount and size of inclusions in the steel are achieved, the amount of inclusions in a shallow surface layer of a slab is reduced, the peeling depth is reduced or peeling is avoided, and the yield is increased.
Absstract of: EP4664552A1
Embodiments of the present application relate to the field of batteries, and provide a positive electrode sheet, a battery, and an electrical device. The positive electrode sheet comprises a current collector and an active material layer disposed on at least one side surface of the current collector. In the mixed active material layer, a positive electrode active material comprises a first positive electrode active material and a second positive electrode active material, wherein the average particle size R2 of the second positive electrode active material is greater than the average particle size R1 of the first positive electrode active material, R2/R1 ≥ 2, and the first positive electrode active material or the second positive electrode active material accounts for 55%-95% of the total mass of the positive electrode active material in the mixed active material layer. The positive electrode sheet can not only improve the energy density of the battery, but also ameliorate the impedance deterioration and improve the dynamic performance of the battery.
Absstract of: EP4664631A1
This application provides an energy storage container and an energy storage container system. The energy storage container includes a container body. The container body has accommodation space. The accommodation space includes a plurality of battery compartments and one temperature control compartment. The plurality of battery compartments are sequentially arranged in a first direction to form a battery region. The temperature control compartment is located between two adjacent battery compartments, or the temperature control compartment is located at an end part that is of the battery region and that is in the first direction. Each of the battery compartments is provided with a door plate, and all of door plates are located on a same side of the container body. The energy storage container provided in this application has high space utilization, high energy density, low levelized costs of storage, and high system efficiency, and is designed with a single door. Therefore, self-stacking may be implemented to form an energy storage container system for transport, and a high-density side-by-side arrangement may be further implemented to form an energy storage container system for an application scenario.
Absstract of: EP4664605A1
The present invention provides a structure of A battery pack comprising: a pack frame; and a plurality of battery modules arranged in the pack frame along a widthwise direction of the pack frame and spaced apart from each other, wherein the pack frame comprises: a bottom plate; a side plate; a cavity is provided in the bottom plate and filled with a coolant without empty space; and an outlet port communicating an inside of the cavity with an outside of the pack frame.
Absstract of: CN120322883A
The invention relates to a solid electrolyte having improved dendritic stability (stability against dendritic formation), comprising a lithium ion conductive material, in particular a glass ceramic, and to the use and to a method for the production thereof.
Absstract of: EP4663378A1
The present invention relates to a method for manufacturing a pouch-type secondary battery, and more specifically, relates to a pouch forming device capable of preventing a curling phenomenon, and a secondary battery manufacturing method using the same.According to one example of the present invention, it may provide a pouch forming device for a secondary battery comprising: a grip module holding and fixing edge portions of the pouch film; a first press module disposed on one side of the pouch film and pressure-forming the pouch film in the other side direction to stretch the pouch film; and a second press module disposed on the other side of the pouch film and press-forming the pouch film in one side direction to form a stepped battery cell accommodating part with respect to the edge portions.
Absstract of: EP4664596A1
The present application provides a battery and an electrical apparatus; the battery includes a positive electrode plate and an electrolyte solution, in which, the positive electrode plate includes LixNi(1-y-z)CoyMzO2-b, and M includes at least one element from Mn, Al, Fe, Ti, Mg, Cr, Ga, Cu, Zn, Nb and Zr, 0
Absstract of: EP4664637A1
A battery pack and an electric device provided in the invention relate to the technical field of batteries. The battery pack includes a box body, a cross beam and a plurality of battery cell groups, the box body is provided with an accommodating chamber having an opening at an end, the box body includes a bottom plate and a frame body formed by a plurality of side plates in an enclosing manner, a direction perpendicular to the bottom plate is a first direction, and the plurality of side plates are fixedly connected to the bottom plate along the first direction; the cross beam is arranged in the accommodating chamber to divide the accommodating chamber into a plurality of accommodating units, a direction parallel to the bottom plate is a second direction, and the cross beam is perpendicular to the bottom plate and extends along the second direction; and the plurality of battery cell groups are arranged in the accommodating units along the second direction, a direction perpendicular to the cross beam is a third direction, and each battery cell group includes a plurality of battery cells stacked along the third direction, the cross beam abuts against at least one end surface of the battery cell group. In this way, the assembly of the battery cell groups is facilitated, and it is beneficial to fixing the battery cell groups.
Absstract of: EP4664604A1
The present application relates to the field of energy storage devices, and discloses a battery, including battery cells, first heat exchange plates and insulating and heat conducting layers, wherein the battery cell is provided with an electrode column, and the electrode column has a heat exchange surface; the insulating and heat conducting layer is disposed between the heat exchange surface and the first heat exchange plate; and the insulating and heat conducting layer has a first side surface and a second side surface that are opposite to each other, the first side surface is attached to the first heat exchange plate, and the second side surface is attached to the heat exchange surface or a metal part connected to the electrode column. The present application effectively improves the heat dissipation effect of the battery.
Absstract of: EP4664044A1
A drying method for a lithium battery and a lithium battery are provided, including: step 1: placing a cell to be dried in an oven; Step 2: performing the following drying processes for a plurality of rounds: adjusting a temperature and a vacuum level in the oven, where the temperature and vacuum level are readjusted in the oven when performing the drying processes for a next time, and compared to the drying processes in a previous time, the temperature in the oven is decreased in a stepwise manner, and the vacuum level in the oven is increased in a stepwise manner; and step 3: performing a moisture test on the cell to be dried.
Absstract of: EP4664549A1
Provided is a means capable of reducing resistance in an electrode for an all-solid-state battery including an active material layer containing an active material, a solid electrolyte, a fibrous conductive aid, and polytetrafluoroethylene and having sufficient dispersibility. Provided is a method for manufacturing an electrode for an all-solid-state battery including an active material layer containing an active material, a solid electrolyte, a fibrous conductive aid, and polytetrafluoroethylene, the method including: a first stirring step of placing the active material and the solid electrolyte in a first container and stirring them using a resonance acoustic mixer; and a second stirring step of placing a mixture obtained in the first stirring step and the fibrous conductive aid in a second container and stirring them using a resonance acoustic mixer, wherein the first stirring step and the second stirring step satisfy at least one of predetermined conditions (1) to (4).
Absstract of: EP4664624A1
In a manufacturing method of a battery of embodiments, a pair of terminals are attached to a lid, in which first and second edges along a first direction and third and fourth edges along a second direction intersecting the first direction form an outer periphery, while separating a second terminal from a first terminal to a side where the fourth edge is located. In the manufacturing method, a proximity portion closer to the first terminal than the third edge on the first edge is formed, and an outer periphery of the lid is welded to the outer container by performing laser welding a plurality of times. At least the proximity portion is welded by first laser welding, and one or more of start points and one or more of end points of the plurality of processes of laser welding are located in a range between the terminals.
Absstract of: EP4664131A1
An object of the invention is to provide a technique capable of determining a state of a battery at high speed and in detail. A battery diagnosis device according to the invention determines whether a battery is in a first state based on a first difference in battery voltage within 4 msec from an end time point at which charging or discharging of the battery is ended, and further determines whether the battery is in a second state based on a second difference in battery voltage thereafter (see FIG. 3).
Absstract of: EP4664641A1
The disclosure relates to a protective cover (1) for protecting a battery cell top surface (21) of a battery cell (2), comprising:- a main protective wall (11) with an extension in a longitudinal direction (L) and a width direction (W), and a top surface (111) facing upwardly in the height direction (H) and a bottom surface (112) facing downwardly in the height direction (H),- at least one battery cell attachment portion (118) which is arranged to attach the protective cover (1) to the battery cell (2) such that the bottom surface (112) faces the battery cell top surface (21), wherein the at least one battery cell attachment portion (118) is configured to provide a snap-fit connection to the battery cell (2). The disclosure also relates to a battery cell assembly (2), an energy storage system (30), and a vehicle (6).
Absstract of: EP4664642A1
The disclosure relates to a protective cover (1) for protecting a battery cell top surface (21) of a battery cell (2), comprising a main protective wall (11) and a side wall (12) protruding downwardly from the main protective wall (11) and extending around an outer perimeter (115) of the main protective wall (11) such that an inner surface (121) of the side wall (12) and the bottom surface (112) of the main protective wall (11) defines a space (S) with a height corresponding to a height of the side wall (12). The disclosure also relates to a cover assembly (4), a battery cell assembly (5), and a vehicle (6).
Absstract of: EP4664132A1
Es wird ein Verfahren zur Ermittlung eines kalendarischen Kapazitätsverlusts ΔQ einer Batteriezelle über einen festgelegten Zeitbereich vorgeschlagen. Das Verfahren ist wenigstens gekennzeichnet durch folgende Schritte:- (S1) Bereitstellen eines ersten Ladezustands SOC1 zu einem Anfang des Zeitbereichs;- (S2) Ermitteln eines zweiten Ladezustands SOC2 zu einem Ende des Zeitbereichs;- (S3) Bereitstellen einer ladezustandsabhängigen Ausdehnungskennlinie DSOC(SOC) (40);- (S4) Bereitstellen einer vom Kapazitätsverlust ΔQ abhängigen Ausdehnungskennlinie Dloss(ΔQ) (41);- (S5) Erfassen einer Ausdehnungsänderung ΔD (42) der Batteriezelle zwischen Anfang und Ende des Zeitbereichs; und- (S6) Ermitteln des Kapazitätsverlusts ΔQ mittels des Zusammenhangs ΔD = DSOC(SOC2) - DSOC(SOC1) + Dloss(ΔQ).Weiterhin betrifft die Erfindung ein Herstellungsverfahren für eine Batteriezelle.
Absstract of: EP4663787A1
The present invention relates to a method for recovering metals from a black mass from spent lithium-ion batteries. In particular, it relates to a method for leaching Co, Ni and Li from a solid S obtainable from a black mass from spent Li-ion batteries, said solid S comprising Ni, Co, Mn and Li, said method comprising contacting the solid S with a sulfur-containing inorganic peracid, such as Caro's acid (peroxymonosulfuric acid), thereby obtaining a solution C comprising Co, Ni, and Li on the one hand, and a solid S" comprising Mn on the other hand.
Absstract of: EP4664602A1
The present disclosure refers to a battery module (100) with a simple connection structure enabling assembly with fewer steps, including a plurality of battery cells (10), a busbar (1) for contacting the plurality of battery cells (10), a thermally and electrically conducting bushing (2) thermally and electrically fixed to the busbar (1), and a circuit board (3) fixed to the bushing (2) by fixation means such that the bushing (2) spaces the circuit board (3) from the busbar (1), wherein the circuit board (3) includes a temperature sensor (5) configured for contacting the busbar (1) through the bushing (2) in a thermally conducting manner, and a voltage signal line (6) configured for contacting the busbar (1) through the bushing (2) in an electrically conducting manner.
Absstract of: EP4664635A1
The present disclosure provides a battery module comprising: a cell assembly including a plurality of battery cells; and a busbar assembly including a busbar electrically connected to at least one of the plurality of battery cells, and a busbar holder including a base located on the cell assembly and a protrusion part extending from the base and connected to the busbar. The plurality of battery cells may include a first battery cell and a second battery cell adjacent to the first battery cell. The busbar may include a first connection part connected to the first battery cell, a second connection part connected to the second battery cell, and a buffer part located between the first connection part and the second connection part. The protrusion part may be connected to the buffer part.
Nº publicación: EP4664218A1 17/12/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: EP4664218A1
Example embodiments provide a method of displaying an intermediate roll map. The method includes: transmitting an application programming interface (API) call to a server storing coordinate-related measurement data, in which the coordinate-related measurement data includes measurement data collected based on measurement of an electrode sheet and coordinates related to the measurement data; transmitting the coordinate-related measurement data in response to the API call; and displaying the coordinate-related measurement data.
BOPI
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