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1000
results.
Updated on
16/07/2026 [07:55:00]
Results 425 to 450 of 1000
Absstract of: US20260196679A1
0000 A rechargeable battery includes an electrode assembly including a separation layer, electrode plates stacked interposing the separation layer, and electrode tabs extending from each of the electrode plates and having a bent portion. An electrode lead connected to the electrode tabs has a bent portion, and a case accommodates the electrode assembly. The electrode tabs may include a lower side adjacent to the electrode assembly, and an upper side that is a remaining portion, which are parallel to each other. The electrode assembly, the electrode lead, and the case satisfy a first equation E=B*(0.73 to 0.77) and a second equation C=D*0.5. B indicates thickness of the electrode assembly, C indicates height of the electrode tabs, D indicates distance from a coupled portion of the case and the electrode lead to the electrode assembly, and E indicates distance between the bent portions.
Absstract of: WO2026144703A1
The present disclosure provides a silicon-based material and a preparation method therefor, a lithium-ion battery cell, a battery apparatus, and an electrical apparatus. The silicon-based material comprises a porous carbon matrix and silicon nanoparticles located in pores of the porous carbon matrix. The surface of the silicon nanoparticles is provided with a silicon oxide passivation layer formed by means of a passivation reaction. The ratio of ID/IG in the silicon-based material to ID/IG in the porous carbon matrix before the passivation reaction is (0.95-1.05):1. The mass ratio of Si to C in the silicon-based material is denoted as A. The mass ratio of Si to C before the passivation reaction is denoted as B, and the ratio of A to B is (0.95-1.05):1. The present disclosure can improve the thermal safety performance, cycle performance, and rate performance of a lithium-ion battery cell.
Absstract of: US20260196690A1
Provided are a battery module information collection and connection system and a powered device. The system includes an insulating bracket, flexible circuit boards, a battery control member, a first conductive portion, a collection member and a battery module. The insulating bracket is disposed on the battery module. The flexible circuit boards include a first flexible circuit board and a second flexible circuit board. The flexible circuit board is connected to the battery control member, and the cell is connected to a flexible circuit board. The battery control member is connected to the battery module. The first conductive portion is disposed on a side of the insulating bracket. One end of the first conductive portion is connected to the battery control member, and the other end of the first conductive portion is connected to a high-voltage interface, and the high-voltage interface is communicatively connected to the battery control member.
Absstract of: WO2026144187A1
The present invention relates to an electrode preparation method, an electrode prepared thereby, an energy storage device comprising the electrode and an electrode production system for implementing the method. The preparation method comprises: (a) providing a free-standing electrode film, which comprises a first side and a second side opposite to the first side, wherein the second side comprises a region to be deposited, on which a metal is deposited when in contact with an electrolyte solution for an electrodeposition reaction; (b) providing an electrolyte solution containing a salt of a metal to be deposited; and (c) bringing at least the region to be deposited on the second side of the free-standing electrode film into contact with the electrolyte solution, and performing an electrodeposition reaction in the region to be deposited, thereby depositing, on the second side, a current collector of the metal to be deposited, wherein the electrodeposition temperature is 0°C to 70°C. The electrode prepared by the method of the present invention enables an active material therein to possess a good initial discharge specific capacity, initial Coulombic efficiency and cycling performance.
Absstract of: US20260194598A1
According to one embodiment, an information processing device according to the present embodiment includes a processing circuitry that calculates target transition data representing a transition of a value of an index regarding a state of a target storage battery based on measurement data regarding the target storage battery, and estimates a timing at which a target event occurs in the target storage battery based on the target transition data and at least one piece of reference transition data representing a reference transition of the value of the index regarding a state of a storage battery in a period from a first time to a second time at which the target event occurs in the storage battery.
Absstract of: WO2026147172A1
The present invention relates to an alkyl propionate solution of lithium bis(fluorosulfonyl)imide (LiFSI) and, specifically, to a storage-stabilizing composition for LiFSI, the composition comprising at least one solvent selected from the group consisting of 100 ppm by weight or less of moisture, LiFSI, and alkyl propionate. The composition of the present invention has the effect of enhancing the stability of LiFSI by suppressing moisture absorption during the storage and distribution of LiFSI. The alkyl propionate solvent included in the composition of the present invention can be used as an electrolyte for a secondary battery, and thus the composition can be directly added in the preparation of an electrolyte without risk of moisture absorption during the electrolyte preparation process.
Absstract of: AU2024432804A1
A battery mounting structure and a vehicle. The battery mounting structure comprises a mounting assembly, a battery cell assembly and two sill beams. The mounting assembly encloses a mounting cavity with openings at two ends, and the battery cell assembly is arranged in the mounting cavity. The two sill beams are arranged opposite each other and connected to the mounting assembly. Each sill beam corresponds to one opening, and each sill beam covers the corresponding opening.
Absstract of: US20260196850A1
There is provided a power storage system including: a DC bus; a plurality of batteries which are connected to the DC bus, and which are connected to each other in parallel; a plurality of diagnosis units each of which is provided for each of the plurality of batteries and measures a degradation state of a battery that is included in the plurality of batteries, by causing the battery to be discharged at a constant current or constant power; and a power conditioner which is connected to the DC bus, and which performs conversion between DC power and AC power, in which at least a part of power discharged from a battery under test among the plurality of batteries, the degradation state of which is being measured by the diagnosis unit, is charged into another at least one battery among the plurality of batteries, or is supplied to the power conditioner.
Absstract of: WO2026144948A1
The present present application provides a battery apparatus, a battery cabinet, and an energy storage system. The battery apparatus (100) comprises at least two battery cell units (210), wherein each battery cell unit (210) comprises a single battery cell (211); and support members (131), wherein the support members (131) are fixedly connected to the battery cell units (210), and the respective support members (131) corresponding to two adjacent battery cell units (210) abut against each other to achieve stacking of said battery cell units (210).
Absstract of: WO2026145707A1
The present application discloses a battery, an electric device, a filler structure, and a preparation method for a filler structure. The battery comprises a case, and further comprises the filler structure. The filler structure is arranged in at least one of a space between the case and an electrode core, and the interior of the electrode core; and the filler structure comprises a skeleton matrix and an adaptive material arranged on the skeleton matrix, the skeleton matrix supports the adaptive material, and the adaptive material can expand upon absorbing an electrolyte solution so as to generate a constraint force on the electrode core.
Absstract of: WO2026145344A1
The present application provides a composite lithium replenishing agent and a preparation method therefor, a positive electrode sheet, a lithium-ion battery, and an electric device. The composite lithium replenishing agent comprises a lithium replenishing agent core and a carbon coating layer coated on the outer side of the lithium replenishing agent core, wherein the carbon coating layer is doped with a nitrogen element, the nitrogen element comprises a pyridinic nitrogen element, and the content of the pyridinic nitrogen element accounts for 50% or more of the content of the nitrogen element.
Absstract of: WO2026145779A1
Disclosed in the present application are a graphite material and a preparation method therefor, a negative electrode sheet, a battery, and an electric device. The graphite material comprises a graphite core and a coating layer, wherein the graphite core is filled with a filler.
Absstract of: US20260196503A1
0000 A positive electrode active material includes a primary particle, wherein the primary particle contains an olivine-type phosphate compound, the primary particle has a cross-section in at least part of which a streak structure is provided, the streak structure includes a first region and a second region, the second region contains an ion conductor containing phosphorus at a higher concentration as compared to the first region, the second region extends in a streaky manner, and the first region is divided into two or more by the second region.
Absstract of: WO2026144929A1
The present application relates to the technical field of overvoltage protection. Provided are an energy storage system direct-current unit with reliable overcurrent protection, and an energy storage system. The energy storage system direct-current unit comprises: a battery cluster, at least one fuse and an overvoltage protection apparatus, wherein the at least one fuse is connected in series in a direct-current circuit formed by the battery cluster; and the overvoltage protection apparatus is connected in parallel to the direct-current circuit, and is configured to suppress an overvoltage generated at the instant when the at least one fuse blows. In view of the problem that it may be difficult to interrupt a faulty overcurrent circuit due to an overvoltage at the instant when the fuse blows, the present application provides an overvoltage protection apparatus in an energy storage system direct-current unit. The overvoltage protection apparatus is connected in parallel to a direct-current circuit, and is configured to suppress an overvoltage generated at the instant when the fuse blows, thereby effectively reducing or even eliminating the risk of arc reignition leading to fusing failure after the fuse blows, and achieving reliable overcurrent protection of the direct-current unit.
Absstract of: WO2026144900A1
The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. At least two flow guide ribs protrude from the side of an insulating member of the battery cell facing away from a top cover piece; the flow guide ribs are spaced apart from each other along the outer periphery of a second liquid injection hole; and the flow guide ribs can enhance the structural strength of a region around the second liquid injection hole, thereby reducing the risk of deformation of the insulating member. Moreover, a flow guide channel communicated with the second liquid injection hole is formed between two adjacent flow guide ribs, thereby ensuring liquid injection efficiency. Additionally, in the radial direction of the second liquid injection hole, the flow guide ribs protrude toward the second liquid injection hole, and an included angle θ between a first straight line and a second straight line of each flow guide rib satisfies: 10°≤θ≤150°, such that it is ensured that the flow guide channel between two adjacent flow guide ribs has a sufficient liquid passing area, thereby ensuring liquid injection efficiency and reducing the risk of blockage of a first liquid injection hole and the second liquid injection hole, and the manufacturing difficulty of the flow guide ribs can also be reduced, thereby reducing manufacturing costs of the battery cell.
Absstract of: WO2026143843A1
Provided in the present application are a top cover assembly, a battery and a battery pack. The top cover assembly comprises a cover plate, a terminal post assembly and terminal assemblies, wherein the terminal post assembly and the terminal assemblies are arranged on the cover plate; the terminal assemblies are connected to the terminal post assembly; the material of the terminal assemblies comprises copper; and at least part of a surface of each terminal assembly is provided with a first protective layer.
Absstract of: WO2026144169A1
The present application relates to the technical field of battery production, and in particular to a battery top cover, a battery cell, and a battery module. The battery top cover of the present application comprises a top cover body and a monitoring module. A first connector is provided on the side wall of the monitoring module, the first connector is located on the outer side of the top cover body, and the first connector extends toward a corner position of the top cover body. In the present application, by arranging the positions of the monitoring module and the first connector, the first connector can be conveniently connected to an external connector such as a junction box of a battery module. Because the first connector extends toward the corner position of the top cover body, the first connector can be arranged at an edge of the battery top cover, so that the external connector can be conveniently connected to the first connector from the edge of the battery top cover. In addition, the first connector is prevented from being connected to a pole on the battery top cover, thereby ensuring circuit safety of the battery cell.
Absstract of: WO2026146470A1
An embodiment of the present invention provides a silicon-based negative electrode active material comprising: a silicon single phase; and a matrix positioned around the silicon single phase, wherein the matrix includes elemental Si, a lanthanide, and an element M, the element M includes one or more selected from the group consisting of Al, Fe, Ti, and Mn, the content of the lanthanide is 2-9 wt% with respect to 100 wt% of the total negative electrode active material, and the silicon single phase is refined to have an average diameter of less than 30 nm due to the inclusion of the lanthanide in the matrix.
Absstract of: WO2026144148A1
Disclosed in the present application are a battery device, an energy storage device, an energy storage system and a charging network. The battery device comprises a plurality of battery cells, an insulating member and a busbar component. Each battery cell is provided with an electrode terminal on one side in a first direction. The insulating member comprises an insulating main body, a first limiting portion and a second limiting portion, wherein the insulating main body is located on one side of the plurality of battery cells in the first direction, and the first limiting portion and the second limiting portion protrude from the side of the insulating main body that is away from the battery cells in the first direction. The second limiting portion and the busbar component are arranged in a second direction, so as to limit the range of rotation of the busbar component around the first limiting portion, thereby improving the stability of the busbar component, and improving the connection reliability between the busbar component and the electrode terminals. In addition, the second limiting portion and the corresponding insulating main body occupy less space on the side of the busbar component close to the electrode terminals in the first direction, or even require no corresponding space at all, thereby facilitating an increase in the connection area between the electrode terminals and the busbar component, further improving the connection reliability between the two.
Absstract of: US20260196645A1
An explosion-proof venting valve for a battery pack includes a top cover having a cover hole, a valve body removably mounted to the top cover, the valve body including a first mounting portion and a second mounting portion, a membrane being water-impermeable and gas-permeable, the membrane interposed between the valve body and the top cover, an intake valve assembly mounted into the first mounting portion in a first mounting direction, a venting valve assembly mounted into the second mounting portion in a second mounting direction opposite to the first mounting direction, and a filter assembly removably mounted to the valve body. A battery pack including a battery pack housing and the explosion-proof venting valve mounted to the battery housing is also provided.
Absstract of: WO2026144796A1
Disclosed in the present application are a pouch battery and a battery pack. The pouch battery comprises: a case, which comprises a body portion and a packaging portion; a battery cell, which comprises an electrode assembly, a positive tab and a negative tab, wherein the electrode assembly is arranged inside the body portion, the positive tab and the negative tab are both connected to the electrode assembly, the positive tab and the negative tab are located on the same side of the electrode assembly in a third direction, and the positive tab and the negative tab both pass through the packaging portion in the third direction and extend to the outside of the packaging portion; and a collection board, which is arranged on the packaging portion and has a collection module and a wireless transmission module, wherein the collection module is electrically connected to each of the positive tab and the negative tab, and the wireless transmission module is electrically connected to the collection module. Data information of the battery cell is collected by means of the collection module, and the collected data information is transmitted to an external device by means of the wireless transmission module, thereby providing strong data support for state evaluation, fault diagnosis and predictive maintenance of the battery cell, eliminating the provision of cables, simplifying the structure, reducing the weight, and reducing the occupied space.
Absstract of: WO2026144998A1
Disclosed in the present application are a secondary battery, a battery pack and an electric device. The secondary battery has a first direction and comprises a case, an electrode assembly and a top cover assembly, wherein the top cover assembly comprises a top cover plate and a lower insulating member, the top cover plate having a first liquid injection hole, and the lower insulating member being disposed on the side of the top cover plate facing the electrode assembly. The lower insulating member comprises a body, a side plate and a barrier plate, wherein the body is connected to the top cover plate, and the body is provided with a second liquid injection hole in communication with the first liquid injection hole; the side plate is connected to the side of the body away from the top cover plate, and is located on the outer peripheral side of the second liquid injection hole; the barrier plate is connected to the side of the side plate away from the body, and the barrier plate is arranged opposite the second liquid injection hole; the side plate has a liquid outlet in communication with the second liquid injection hole; in the first direction, the end of the side plate close to the body is inclined in a direction away from the axis of the second liquid injection hole; and the projection area, on the body, of the side of the barrier plate facing the first liquid injection hole is S1, the opening area of the first liquid injection hole is S2, and the projection area and the op
Absstract of: WO2026144665A1
The present application relates to the technical field of batteries, in particular to a battery cell, comprising a cover plate, posts and connection members. The posts are mounted on the cover plate; each post is formed with a mounting recess and a mounting through hole which are sequentially communicated in a first preset direction, the mounting recess passing through the inner side of the post, and the mounting through hole passing through the outer side of the post; each connection member comprises first connection portions, second connection portions and a mounting protrusion portion which are sequentially connected, the first connection portions being located on the inner side of the cover plate close to electrode groups and being configured to connect tab clusters of the electrode groups, the second connection portions being mounted in the mounting recess, the mounting protrusion portion being mounted in the mounting through hole, and in the first preset direction, each second connection portion being formed with a welding area located on the outer side of the mounting protrusion portion. In the battery cell provided by the present application, the structures of connection pieces and the posts are redesigned, which helps to observe whether the connection pieces and the posts are mounted in place, simplifies the welding operation with lower requirements on workers, and also prevents welding spatters from entering the interior of the battery cell.
Absstract of: WO2026144170A1
The present application relates to the technical field of battery production, and discloses a battery top cover and a battery. The battery top cover comprises a top cover body, a sensor module, a limiting member, and a sealing member. The top cover body is provided with a through hole. An accommodating cavity is formed between the limiting member and the top cover body. The limiting member is provided with a second limiting portion and an opening in communication with the accommodating cavity. The sensor module is provided with a sensor base and a first limiting portion provided on the sensor base. The sensor base is embedded into the accommodating cavity from the opening, so as to achieve a detachable connection between the sensor module and the top cover body, thereby facilitating subsequent implementation of maintenance and replacement. The first limiting portion and the second limiting portion cooperate with each other to prevent the sensor module and the limiting member from being easily loosened from each other. Furthermore, the sensor module is provided with an air intake hole in communication with the through hole, so as to acquire internal information of the battery. The sealing member is disposed between the sensor module and the top cover body.
Nº publicación: WO2026144570A1 09/07/2026
Applicant:
SUNWODA MOBILITY ENERGY TECH CO LTD [CN]
\u6B23\u65FA\u8FBE\u52A8\u529B\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
Absstract of: WO2026144570A1
The present application discloses a battery cell and a battery pack. The battery cell comprises: a casing, wherein the casing is internally provided with an accommodating cavity and has an opening on one side in the height direction; a first cover plate covering the opening; a second cover plate provided on the casing and located on the side of the casing away from the opening, wherein a pressure relief hole passing through the second cover plate in the height direction is formed on the second cover plate, the second cover plate is provided with a protruding portion surrounding the pressure relief hole, and the protruding portion protrudes towards the opening relative to the second cover plate; an explosion-proof valve hermetically mounted in the pressure relief hole; and an insulating spacer arranged in the accommodating cavity and located between the first cover plate and the second cover plate, wherein the insulating spacer is provided with an air guide groove and a clearance hole both passing through the insulating spacer in the height direction, the clearance hole and the pressure relief hole are arranged opposite to each other in the height direction, the protruding portion passes through the clearance hole and is in clearance fit with the clearance hole, and an effective gas channel is formed from the air guide groove, the clearance hole to the pressure relief hole, thereby ensuring that high-temperature gas generated during thermal runaway is smoothly discharged.
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