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771
resultados
Última actualización
27/08/2026 [09:35:00]
Resultados 625 a 650 de 771
Resumen de: EP4794083A1
0001 The present application relates to the technical field of batteries, and in particular to a battery assembly and an electrical apparatus. The battery assembly includes: a battery, including a top surface, a bottom surface, and side surfaces; and a separation structure wrapped around an outer side of the battery, the separation structure including a first conductive layer and an insulating separation layer. The first conductive layer covers at least part of the bottom surface of the battery and at least part of the side surfaces of the battery. The insulating separation layer includes a separation main body portion and a pulling portion connected to the separation main body portion. A tear guide structure is provided between the separation main body portion and the pulling portion, the separation main body portion covers the first conductive layer and is connected to the first conductive layer, and the pulling portion is bonded to the top surface of the battery. The pulling portion is configured such that, when a pulling force is applied to the pulling portion, the pulling portion is separated from the top surface of the battery, and the first conductive layer on the side surfaces of the battery is exposed at the battery. At least part of the insulating separation layer is formed of a conductive release adhesive. The technical solution provided in the present application can effectively solve the problem in the related art of the battery being difficult to remove from
Resumen de: EP4794462A1
0001 This application provides a heat dissipation system and an energy storage system. The heat dissipation system includes a container body and a heat management module, where the heat management module is disposed in the container body. A partition plate in the container body separates the container body into a temperature control chamber and a control chamber. The temperature control chamber is located above the control chamber. The heat management module includes at least two compressors, at least two water pumps, a plate heat exchanger component, and an electric control box that are located in the control chamber. The compressors and the electric control box are sequentially disposed in a width direction, the plate heat exchanger component and the water pumps are sequentially disposed in the width direction, and the electric control box and the water pumps are disposed sequentially in a length direction. The compressors and the water pumps are separately connected to the plate heat exchanger component, and the compressors and the water pumps are separately connected to the electric control box. The heat management module further includes a liquid cooling unit located in the temperature control chamber, and the plate heat exchanger component and the electric control box are separately connected to the liquid cooling unit. The heat dissipation system in this application can implement water-electricity isolation and a multi-heat management system, so that heat management
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: EP4793325A2
Intumescent coating compositions comprising TiO2 in an amount of 5-20 wt %, a phosphate source in an amount of 20-55 wt %, based on total solid weight and a borate source, aluminum source and/or silica source, are disclosed, as are methods for using such compositions and substrates coated with same.
Resumen de: EP4794282A2
0001 The present invention relates to battery system comprising a switching unit (14) configured to control a current flow for a battery; a battery pack (1) including a group of battery cells being monitored by a lower-level battery management system; an upper-level battery management system (100) for the battery pack; wherein the lower-level battery management system monitors a battery status by sensing temperature, voltage, or current of a battery module or cell and transmit monitored information to the upper-level battery management system; wherein the upper-level battery management system receives battery status information and transmit information to an upper-level control unit or transmit information obtained by determining a battery status based on the received information to the upper-level control unit; a channel change unit configured to handle wireless communication channels between the lower-level and the upper-level battery management systems; wherein, for maintaining continuity of communications through wireless communication channels, the channel change unit periodically changes wireless communication channels to perform communications through a second communication channel for a preset time period which is different from a first communication channel; a communication interface performs communications with the outside of the battery system; and a memory in which programs relating to battery management process are recorded.
Resumen de: EP4794103A2
0001 Disclosed is a battery module that reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.
Resumen de: EP4794169A2
A method for maintaining a power source (60) can include selecting, by a controller module (90), a rechargeable power storage device (62) from a set of power storage devices (62) arranged to selectively provide a summated output of the power source (60), and selectively enabling, by the controller module (90), the selected power storage device (62) to discharge its stored power at the output of the power source (60). The controller module (90) can compare a sensed voltage of the selected power storage device (62) with a minimum voltage threshold.
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: EP4794092A1
0001 A battery module according to exemplary embodiments may include battery cells, a module frame, and a first thermal barrier, wherein the module frame may accommodate the battery cells, and the module frame includes a top plate including vent holes, and the first thermal barrier may be disposed between the battery cells and the top plate.
Resumen de: EP4793997A1
0001 An electrode sheet (100, 100A, 100B), a secondary battery (500), and an electronic device (1000) are provided. The electrode sheet (100, 100A, 100B) includes: an electrode sheet body (160); and an electrode tab (150, 150') extending from the electrode sheet body (160) in a first direction (D1), where a stiffener (190) is disposed on a surface of the electrode tab (150, 150'), where the stiffener (190) at least includes a first portion (192) and a second portion (194), the first portion (192) and the second portion (194) are connected through a bending part (196). An angle formed by the first portion (192) and the second portion (194) is a, 28°≤a≤45°.
Resumen de: EP4794106A1
0001 The disclosure provides an electrode sheet (300), including: an electrode sheet body (310), and a tab (320) protruding from the electrode sheet body (310) along a first direction (F), the tab (320) is set with a reinforcing rib array (321), the reinforcing rib array (321) includes multiple first reinforcing ribs (322); wherein in the first direction (F), every two adjoining first reinforcing ribs (322) are separated from each other. The purpose of the disclosure lies in providing an electrode sheet (300), a secondary battery (100A/B) and an electronic device (1000), so as to at least strengthen the supporting force for the tab (320).
Resumen de: EP4794060A1
Embodiments of this application relate to the field of energy storage technologies, and a battery pack and an energy storage device are provided. A heating film is disposed in the battery pack, to increase a temperature of an operating environment of a cell in the battery pack. Wiring density of heating wires at different positions in the heating film is controlled, to control heating efficiency at the different positions in the heating film, and selectively heat cells at the different positions to different extents, so that different cells of the battery pack can be heated to a preset temperature range. In this way, temperatures of the different cells of the battery pack may be neither excessively low to result in low charging/discharging efficiency, and nor excessively high to affect a service life or safety performance of the cells. Therefore, a service life and safety performance of the battery pack are effectively improved while charging/discharging efficiency of the battery pack is ensured, thereby improving a service life and safety of the energy storage device.
Resumen de: EP4794007A1
0001 An electrode sheet, an electrode assembly, a battery cell and a preparation method therefor, a battery, and an electric device, relating to the technical field of batteries. A protective layer is provided on at least the surface of an end portion of the electrode sheet, and the protective layer comprises silicon oxide; and on the basis of the total mass of all elements of a first position of the electrode sheet, the mass content A of an Si element satisfies: A is less than 0.01 wt%, and the first position is a position 5 mm distant from the surface of the end portion.
Resumen de: EP4794038A1
The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device capable of effectively performing line balancing in a circulation manufacturing line.According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of automatically determining an appropriate quantity of carriers during circulation in a circulation manufacturing line through a master carrier distinguished from general carriers and a sensor sensing the master carrier.
Nº publicación: EP4794037A1 19/08/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: EP4794037A1
0001 The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of effectively performing line balancing in a circulation manufacturing line. 0002 According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which are characterized by comprising a plurality of sensors provided along a buffer line provided between preceding equipment and succeeding equipment, to calculate loading degrees of carriers step-by-step in the buffer line; and a controller adjusting process speeds of the preceding equipment and the succeeding equipment based on the step-by-step loading degrees calculated through combinations of outputs of the plurality of sensors, thereby balancing the process speeds of the preceding equipment and the succeeding equipment, and controlling to track the overall target process speed.
BOPI
Sede Electrónica
