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593
resultados
Última actualización
26/08/2026 [07:22:00]
Resultados 450 a 475 de 593
Resumen de: EP4794112A1
0001 An electrolyte injection system (100) and an electrolyte injection method. The electrolyte injection system (100) comprises an electrolyte injection device (110), an upper computer (120), and a control device (130). The electrolyte injection device (110) is used for injecting an electrolyte into a battery cell in a battery cell electrolyte injection process. The upper computer (120) is used for: acquiring electrolyte injection data of the battery cell after battery cell electrolyte injection is completed, and locally recording the electrolyte injection data of the battery cell as historical electrolyte injection data; determining a first battery cell set placed in a battery cell tray that currently enters the electrolyte injection device (110); on the basis of the local historical electrolyte injection data, determining from among the first battery cell set a second battery cell set, electrolyte injection of which has not been completed; determining from among the second battery cell set a target battery cell set to be subjected to electrolyte injection; and sending to the control device (130) the position of each target battery cell in the target battery cell set in the battery cell tray. The control device (130) is used for controlling the electrolyte injection device (110) to perform electrolyte injection on the target battery cell set on the basis of the position corresponding to each target battery cell.
Resumen de: EP4792950A1
0001 A die-cutting machine (10), comprising an unwinding mechanism (11), a cutting mechanism (12), a visual detection system (13) and a winding mechanism (14), which are sequentially arranged in a conveying direction of an electrode sheet, wherein the visual detection system is used for collecting an image of the current electrode sheet that has been cut, and the cutting mechanism is used for cutting the next electrode sheet in a first marking mode when a detection result of the current electrode sheet indicates that the current electrode sheet has a defect, the detection result of the current electrode sheet is determined on the basis of the image of the current electrode sheet, a cutting position corresponding to the next electrode sheet is used as an end position of the current battery electrode sheet section and a starting position of the next battery electrode sheet section, and the length between the starting position of the next battery electrode sheet section and a starting position of the current battery electrode sheet section is less than the length of one battery electrode sheet section. Further provided is a die-cutting method. The die-cutting machine shortens the length of an electrode sheet that does not meet standards, reduces the possibility of electrode sheet waste, and achieves the aim of saving on electrode sheets, thereby reducing the manufacturing cost of batteries, and improving the productivity of the device.
Resumen de: EP4794052A1
This application provides a battery pack with a breaking protection function and an energy storage system. The battery pack includes a battery module including a plurality of single cells, a breaking device connected in series to the battery module, a current sensor, and a controller. A first end of the current sensor is connected to a positive output end of the battery pack, and a second end of the current sensor is connected to a negative output end of the battery pack, to detect a current difference between the positive output end and the negative output end of the battery pack. The controller is configured to: when the current difference detected by the current sensor is greater than a first threshold, control the breaking device to be turned off, to quickly cut off a fault when the short-circuit to ground fault occurs in the cell in the battery pack, so as to ensure safe operation of the entire energy storage system.
Resumen de: EP4794111A1
0001 A battery (100) and an electric device. The battery (100) comprises: a battery pack (10), comprising a first battery column (11) and a second battery column (12), which are arranged in a first direction (X), wherein the first battery column (11) and the second battery column (12) each comprise a plurality of battery cells (200) sequentially arranged in a second direction (Y), the first direction (X) intersecting the second direction (Y); a busbar assembly (20), comprising a first busbar member (21) and a second busbar member (22), wherein the first busbar member (21) is connected to the battery cells (200) of the first battery column (11), and the second busbar member (22) is connected to the battery cells (200) of the second battery column (12); and a separator (30), wherein in the first direction (X), at least part of the separator (30) is located between the first busbar member (21) and the second busbar member (22). The battery can improve its own reliability, thus reducing the risk of short circuits.
Resumen de: EP4794091A1
The embodiments of the present disclosure belong to the technical field of batteries. Provided are an explosion-proof valve patch, a cover plate assembly, a battery cell, a battery and an electric device. The explosion-proof valve patch comprises a patch body; a first rubber ring arranged on a first surface of the patch body and provided with a first gap; and a second rubber ring arranged on the first surface of the patch body, located on an inner side of the first rubber ring, and provided with a second gap, the first gap and the second gap being staggered.
Resumen de: EP4794080A1
0001 A casing, a battery and an electric device, which relate to the technical field of batteries. The casing comprises a casing wall (1), load-bearing members (3) and connecting members (4), wherein an accommodating cavity (2) is formed by the casing wall (1) by means of enclosure, and is provided with first connecting holes (111); the first connecting holes (111) penetrate the casing wall (1) in the direction of thickness of the casing wall (1); the load-bearing members (3) are provided in the accommodating cavity (2); the connecting members (4) extend into the accommodating cavity (2) by means of the first connecting holes (111) so as to be detachably connected to the load-bearing members (3) to fix the casing wall (1) and the load-bearing members (3); and a connecting structure is provided on the side of each connecting member (4) facing the outside of the accommodating cavity (2), and is configured to be connected to a target device.
Resumen de: 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.
Resumen de: 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.
Resumen de: EP4792942A1
Provided in the present application are a coating mechanism and a coating device. The coating mechanism comprises a coating head and an acceleration mechanism, the coating head being provided with an accommodating cavity, and the cavity wall of the accommodating cavity being provided with a feeding opening and a discharging opening. At least part of the acceleration mechanism is located in the accommodating cavity. The acceleration mechanism is configured to split in the first direction a slurry stream entering from the feeding opening, the first direction intersecting with a discharging direction of the discharging opening. The slurry enters the accommodating cavity of the coating head through the feeding opening and is coated onto an electrode sheet by means of the discharging opening. Using the part of the acceleration mechanism inside the accommodating cavity can raise the flow speed of the slurry in the accommodating cavity, i.e. using an active mode to raise the flow speed of the slurry in the accommodating cavity, thereby solving the problem of slurry accumulation in accommodating cavities.
Resumen de: EP4794003A1
A negative electrode sheet, a battery cell and an electric device. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector; the negative electrode film layer comprises at least one negative electrode active material layer containing a negative electrode active material, one of the at least one negative electrode active material layer comprises a first area and a second area, and in the thickness direction of the negative electrode sheet, the first area at least covers the two ends of the negative electrode current collector in a first direction; the thickness direction is perpendicular to the first direction; the second area and the first area are continuously arranged in the first direction, the second area is sandwiched in the first area, and the second area covers part of the negative electrode current collector in the thickness direction; the compaction density of the negative electrode active material located in the first area is Ag/cm3, the compaction density of the negative electrode active material located in the second area is Bg/cm3, and B/A<1.
Resumen de: EP4793232A1
Provided are a preparation method for lithium iron phosphate, a positive electrode active material, a positive electrode plate, a battery, and a power-consuming device. The preparation method for lithium iron phosphate comprises: dissolving a first iron source, a second iron source, a lithium source and a phosphorus source in a solvent to obtain a mixed slurry; and sintering the mixed slurry to obtain lithium iron phosphate, wherein the first iron source comprises at least one of iron oxide or first iron phosphate, and the second iron source comprises at least one of second iron phosphate or ferrous oxalate, the first iron phosphate has an iron to phosphorus ratio of 0.97-0.985, and the second iron phosphate has an iron to phosphorus ratio of 0.93-0.96. The primary particles of lithium iron phosphate, which have different particle sizes, can be mixed and matched, thus improving the compaction density of lithium iron phosphate and the energy density of the battery.
Resumen de: EP4794026A1
0001 The present application relates to a positive electrode active material and a preparation method therefor, a positive electrode sheet, a secondary battery, and an electric device. The positive electrode active material comprises an active substance; the active substance comprises a lithium nickel manganese oxide; the lithium nickel manganese oxide comprises a spinel phase; in an X-ray diffraction analysis pattern of the lithium nickel manganese oxide, there is a first diffraction peak at a diffraction angle 2θ of 18° to 19° and a second diffraction peak at a diffraction angle 20 of 44° to 45°; the first diffraction peak corresponds to a crystal face (111), and the second diffraction peak corresponds to a crystal face (400); the peak intensity of the first diffraction peak is I<(111)>, the peak intensity of the second diffraction peak is I<(400)>, and I<(111)> and I<(400)> satisfy: 2.5 ≤ I<(111)>/I<(400)> ≤ 4.0; and the lithium nickel manganese oxide satisfies the chemical formula Li
Resumen de: EP4794002A1
An electrode sheet, a secondary battery, an electric device, a preparation method, and a reuse method. The electrode sheet comprises a current collector and multiple active material layers located on at least one side of the current collector; the multiple active material layers comprise a first active material layer and a second active material layer, wherein the second active material layer is the active material layer farthest from the current collector, and the first active material layer is located between the second active material layer and the current collector, and comprises current collector particles.
Resumen de: EP4794082A1
0001 A lower case (10) and a case (100) having same, a battery pack (1000), and an electric device (10000), The lower case (10) is used for the battery pack (1000), and the lower case (10) comprises: a bottom plate (11) extending in a first direction within a horizontal plane, wherein two side edges of the bottom plate (11) in a second direction within the horizontal plane are provided with first connecting portions, the first connecting portions are used for connecting an upper case (20) of the battery pack (1000), and the first direction intersects with the second direction; and first side plates (12), wherein there are two first side plates (12) respectively arranged at two ends of the bottom plate (11) in the first direction, the first side plates (12) are vertically arranged, and the lower ends of the first side plates (12) are fully welded to the bottom plate (11).
Resumen de: EP4794017A1
In order to provide a secondary battery quality control system and a secondary battery quality control method that allow performance of a completed secondary battery to be predicted on the basis of structure information of an electrode mixture sheet produced during manufacturing steps, the following configuration is provided. There are provided the quality control system for a secondary battery includes: a storage unit that stores a performance prediction model obtained by formulating correlation between structure information of an electrode mixture sheet and performance information of the secondary battery manufactured by applying the electrode mixture sheet; and a performance prediction unit that inputs the structure information of the newly manufactured electrode mixture sheet to the performance prediction model to predict electrode performance of the secondary battery manufactured by applying the electrode mixture sheet, and the secondary battery quality control method.
Resumen de: EP4793239A1
The present invention relates to a method for manufacturing a positive electrode active material for a lithium secondary battery, the method comprising: preparing a manganese-excess transition metal precursor having a molar ratio (Mn/M) of manganese (Mn) to transition metal (M) of 0.5 to 0.75; oxidizing the transition metal precursor by performing a first calcination; and forming a lithium and manganese-excess lithium transition metal oxide by lithiating the oxidized transition metal precursor through a second calcination.
Resumen de: CN122070610A
An electrode for an energy storage device is disclosed, the electrode comprising a solvent-free electrode film. The solventless film includes a porous network of active material joined together by binder particles. The binder particles comprise a high density polyethylene polymer.
Resumen de: EP4794019A1
0001 A positive electrode active material includes a lithium nickel-based oxide having the content of nickel (Ni) ranging from about 50 mol% to 70 mol% among total transition metals, and a coating layer formed on a surface of the lithium nickel-based oxide and including cobalt (Co) and lithium (Li). The coating layer has a form including both dot-shaped and film-shaped phases, and the weight ratio of lithium (Li) to cobalt (Co) in the positive electrode active material ranges from about 5 to 20.
Resumen de: WO2026132690A1
The invention relates to a current collector (10) for a prismatic electric battery cell (1), the current collector comprising a lateral section (30) intended to be electrically connected to current-collecting tabs (55) of an assembly (50) of electrodes (51, 53) of the battery cell (1), the lateral section (30) extending between a proximal portion (31) and a free distal portion (35), the lateral section (30) comprising a generally planar main portion (33) connecting the proximal portion (31) and the distal portion (35), and forming a recess (d37) relative to the proximal portion (31) and the distal portion (35), to form a cavity (37) intended to receive the current-collecting tabs (55). The invention also relates to an assembly (5) and to a battery cell (1) comprising such a current collector (10).
Resumen de: EP4794093A1
0001 Disclosed is a battery module manufacturing method including (S1) a step of receiving a cell assembly including a plurality of secondary batteries in a module frame, (S2) a step of locating the module frame at a cover frame seated on a folding jig, and (S3) a step of folding the cover frame such that the cover frame wraps around a part of an outer surface of the module frame through the folding jig, wherein, in step (S2), a first protrusion and a second protrusion provided on edges of both sides of the folding jig are inserted into a first hole and a second hole formed in edges of both sides of the cover frame, respectively.
Resumen de: EP4794069A1
0001 A battery cell according to an embodiment of the present invention may include: an electrode assembly in which a positive electrode and a negative electrode are alternatingly interposed with a separator therebetween; and a pouch-type exterior including an accommodation portion that is recess-formed to accommodate the electrode assembly. The accommodation portion may include a center region; and a pair of end regions located on opposite sides of the center region, having a depth dimension smaller than a depth dimension of the center region, and being asymmetric to each other.
Resumen de: EP4794061A1
0001 According to exemplary embodiments of the present disclosure, there is provided a battery system. The battery system includes: a battery pack having a cooling flow path at an upper part and a venting passage at a lower part; and a battery pack stack in which a plurality of the battery packs are stacked vertically. Such a battery system can efficiently cool and then discharge high-temperature flammable gas, thereby preventing thermal runaway and thermal propagation between battery modules or between battery packs.
Resumen de: EP4794062A1
The present disclosure provides a battery unit including: a plurality of battery cells stacked in one direction; side plates disposed at both end sides in the stacking direction of the plurality of battery cells; a band member connected to at least one of mutual upper ends and mutual lower ends of the side plates; and a plurality of adhesive members positioned between the band member and the plurality of battery cells and bonded to the band member and the plurality of battery cells, wherein the plurality of adhesive members is formed spaced apart from each other, and a cooling flow path is formed between the spaced plurality of adhesive members.
Resumen de: WO2025078776A1
The invention relates to a battery (1) for storing electrical energy, comprising: at least one stack (7) of electrical cells (6); and a housing including a base (3) to which the stack (7) of cells of the battery (1) is attached. The battery (1) comprises: at least two compression plates (8) which are arranged on either side of the stack; means (10) for attaching the compression plates (8) to the base (3); at least one tie rod (12) which is capable of pressing the compression plates (8) against the cells (6) of the stack (7); and at least one elastic device (15) for compensating for gaps in the stack in a direction of dimensional variation of the stack, the device comprising at least one flat-wire wave spring.
Nº publicación: EP4792090A1 19/08/2026
Solicitante:
KOERBER TECH GMBH [DE]
K\u00F6rber Technologies GmbH
Resumen de: WO2025078694A1
The invention relates to a measuring device (10) for determining at least one property of a planar element (31) of the battery cell-producing industry, wherein the measuring device (10) is arranged in a measuring relationship to a surface (32) of a planar element (31) placed at the top of an element stack (30) and is configured to determine image data of the surface (32), comprising a data processing device (50) which is configured to process the determined image data and herefrom to determine at least one property of the planar element (31). The measuring device (10) has at least one laser measuring device (51) which is configured to measure the distance to the surface (32) of the planar element (31) by means of a laser beam (57) directed onto the planar element, wherein the data processing device (50) is configured to link the determined image data and the distance data from the at least one laser measuring device (51).
BOPI
Sede Electrónica
