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1408
resultados
Última actualización
17/12/2025 [07:14:00]
Resultados 550 a 575 de 1408
Resumen de: WO2025246570A1
The present application provides a secondary battery and an electronic device comprising same. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, a separator and an electrolyte solution. The negative electrode sheet comprises a negative electrode material layer, wherein the negative electrode material layer comprises a silicon-containing active material; the silicon-containing active material comprises silicon; and on the basis of the total mass of the negative electrode material layer, the mass percentage content of silicon is C%, and 1≤C≤20. The electrolyte solution comprises: (1) a first component, which is a boron-containing lithium salt, wherein on the basis of the total mass of the electrolyte solution, the mass percentage content of the first component is B%, and 0.1≤B≤5; and (2) a second component, which comprises at least one of a compound represented by formula I or a compound represented by formula II, wherein on the basis of the total mass of the electrolyte solution, the mass percentage content of the second component is A%, and 25≤A≤70. The secondary battery of the present application has good high-temperature and high-voltage cycling stability.
Resumen de: WO2025245953A1
An electrolyte and a lithium-ion battery using same. The electrolyte comprises a first additive; the mass ratio of the first additive in the electrolyte is 2.5-5.5%; the first additive comprises trimethyl phosphate and pentafluoro ethoxy cyclotriphosphazene; upon calculation, the mass ratio of trimethyl phosphate to pentafluoro ethoxy cyclotriphosphazene is equal to 0.5-2:2-3.5.
Resumen de: WO2025246134A1
A battery cell (20), a battery (100), and an electric device, relating to the technical field of batteries. The battery cell (20) comprises a casing (21), electrode assemblies (22), and a pressure relief mechanism (23). The casing (21) comprises a wall portion (211). The electrode assemblies (22) are accommodated in the casing (21). The pressure relief mechanism (23) is arranged on the wall portion (211), and the pressure relief mechanism (23) is configured to release the internal pressure from the battery cell (20). The wall portion (211) has a first surface (2111) facing the electrode assemblies (22); abutting portions (2112) protrude from the first surface (2111); along a thickness direction (X) of the wall portion (211), the abutting portions (2112) abut against the electrode assemblies (22), so that an exhaust channel (24) is formed between the electrode assemblies (22) and the first surface (2111); and the exhaust channel (24) is configured to guide the gas inside the casing (21) to the pressure relief mechanism (23). The battery cell (20) can mitigate the phenomenon of the electrode assemblies (22) blocking or clogging the pressure relief mechanism (23), so as to enhance the internal exhaust smoothness of the battery cell (20) during thermal runaway, such that the pressure relief rate of the battery cell (20) can be increased, thereby facilitating reduction of the risk of explosion or bursting of the battery cell (20) caused by untimely pressure relief, improving the o
Resumen de: WO2025246133A1
A battery (100) and an electrical device, relating to the technical field of batteries. The battery (100) comprises a fixing member (10) and battery cells (20). The fixing member (10) has a first surface (11). Each battery cell (20) comprises a housing (21) and an electrode assembly (22). The electrode assembly (22) is accommodated in the housing (21). The housing (21) has a wall portion (211). The wall portion (211) has a second surface (2111) facing away from the electrode assembly (22), and along a thickness direction (X) of the wall portion (211), the second surface (2111) and the first surface (11) are arranged to face each other. One of the first surface (11) and the second surface (2111) is provided with an engagement slot (2111a), and the other is provided with an engagement portion (111). The engagement portion (111) is inserted into and fitted with the engagement slot (2111a). The battery (100) can fasten the battery cells (20) onto the fixing member (10) to achieve fastening and positioning of the battery cells (20), thereby improving the structural stability and reliability of the battery cells (20) when assembled in the battery (100) and reducing phenomena such as shaking or displacement of the battery cells (20) during use. Accordingly, the risk of the battery cells (20) shifting or colliding with other components can be effectively reduced, improving the usage stability and service life of the battery (100).
Resumen de: WO2025245687A1
A secondary battery and an electronic device. The secondary battery comprises a metal case, a pole, an electrode assembly, a first tab lead and a first insulating member. The metal case comprises a top wall, and a first wall and a second wall which are connected to two sides of the top wall. The pole is provided on the top wall and insulated from the metal case. The electrode assembly comprises a main body, and a first tab and a second tab connected to the main body, the main body and the top wall are arranged opposite to each other in a second direction, and the first tab extends from the main body toward the top wall. The first tab lead comprises a first bending point, and a first segment and a second segment located on two sides of the first bending point. In a first direction, the first wall is closer to the first bending point than the second wall. The first insulating member is provided between the first wall and the first bending point. In the first direction, the projection of the first bending point is located within the projection of the first insulating member, and at least part of the projection of the main body overlaps the projection of the first insulating member. The safety performance of the secondary battery is improved.
Resumen de: WO2025245774A1
A battery safety control system based on single-line inert gas circulation, which belong to the technical field of the safety of energy storage batteries. The system comprises a safety monitoring subsystem, a safety management subsystem and a single circulation line subsystem. Both thermal management and fire-fighting processes are executed by means of the single circulation line subsystem, thereby avoiding the switching between a thermal management execution mechanism and a fire-fighting execution mechanism, and complex control; and the thermal management and fire-fighting processes are executed by a single line, thereby reducing the construction cost and economic cost and saving on a system mounting space; moreover, an inert gas is used as both a cooling medium to cool a battery pack and a fire suppression medium to perform fire-fighting on the battery pack, which is safe and reliable; and finally, being independent of the control of an energy management system, the safety monitoring subsystem and the safety management subsystem can immediately formulate a cooling or fire-fighting mode when the temperature of the internal environment of the battery pack is excessively high or thermal runaway occurs, and can dynamically adjust, on the basis of a change in the internal environment of the battery pack, the single circulation line subsystem so as to perform a cooling or fire-fighting action on the battery pack.
Resumen de: WO2025245866A1
A heat exchange member, a case, a battery, and an electric device. The heat exchange member (20) is used for a case (100) for a battery (1000), and comprises: a heat exchange plate (21); a back plate (22) provided on one side of the heat exchange plate (21) in a first direction (Z) and connected to the heat exchange plate (21), the first direction (Z) being the thickness direction of the heat exchange plate (21); and heat exchange tubes (23) provided between the heat exchange plate (21) and the back plate (22) and fixedly connected to the heat exchange plate (21) and/or the back plate (22).
Resumen de: WO2025246316A1
Disclosed in the present invention are an energy storage battery module box capable of automatic early-warning and ejection, and an operation method therefor. The structure comprises a battery cabinet, a battery module box main body, a battery management system, an early-warning and ejection apparatus, and a slide rail base, wherein the battery module box main body is slidably arranged in the battery cabinet by means of the slide rail base; and the early-warning and ejection apparatus is connected to the battery module box main body and the battery management system. In the present invention, the early-warning and ejection apparatus can detect an abnormality in the temperature of a battery, give an early-warning and eject a faulty battery module box out of the battery cabinet, such that the abnormal battery module box is no longer arranged close to normal battery module boxes, thereby enabling a fire-extinguishing coolant released by an existing fire-fighting system for an electrochemical energy storage system to be in full contact with the faulty battery module box, and thus improving the efficiency and effects of fire extinguishing and cooling; in addition, the faulty battery module is separated from the normal battery modules, such that thermal spreading can be effectively blocked, thereby realizing rapid disaster control in a targeted manner, and preventing thermal runaway from spreading between the battery modules.
Resumen de: WO2025246085A1
The present application relates to thermal insulation materials, and in particular to a thermal insulation material comprising a polyester fiber mesh fabric laminated with aluminum foils on both sides, and a preparation method therefor. The thermal insulation material comprising a polyester fiber mesh fabric laminated with aluminum foils on both sides consists of adhesive layers, a polyester fiber mesh fabric layer, and aluminum foil material layers; each aluminum foil material layer is formed by laminating an aluminum foil with PET and PE; the adhesive layers are formed by applying an adhesive to both the upper and lower surfaces of the polyester fiber mesh fabric layer and then curing and solidifying same; the aluminum foil material layers are bonded to the polyester fiber mesh fabric layer by means of the adhesive layers; the adhesive comprises a high molecular weight polyester resin, a curing agent, and ethyl acetate; the high molecular weight polyester resin has a molecular weight ranging from 25,000 to 30,000 and is prepared from raw materials comprising 2-chloro-1,3-propanediol and tetrahydrophthalic anhydride. In the present application, by means of the design of the unique composite structure, the optimized selection of the layers of materials and the accurate control in the preparation process, the factors work together, so that the coefficient of thermal conductivity of the prepared material satisfies the requirement of less than or equal to 0.038 W/(m.k), and the
Resumen de: WO2025246107A1
The present application provides a secondary battery and an electric device. The second battery comprises a positive electrode sheet. The positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer arranged on the surface of the positive electrode current collector. The positive electrode film layer comprises a positive electrode active material. The positive electrode active material comprises a lithium iron phosphate material doped with element M and element Q, wherein M comprises one or more of Mn, Ni, Co, Cr, Cu, Bi, and Sb, and Q comprises one or more of F, N, and Cl.
Resumen de: WO2025246208A1
The present application discloses a battery cell, a battery, an energy storage device and an electric device. The battery cell comprises a housing, a first electrically conductive member, a first terminal post, and a first deformable member, wherein the housing has a first wall; the first electrically conductive member is disposed on an outer side of the first wall and is insulated from the first wall; the first electrically conductive member comprises a first sub-component and a second sub-component connected to each other, the second sub-component being used for connection with a busbar component; the first terminal post is connected to the second sub-component; and the first deformable member is electrically connected to the first wall, the first deformable member being configured to deform to come into contact with the first sub-component, thereby electrically connecting the first terminal post to the first wall. The technical solution provided in the present application can improve the reliability of the battery.
Resumen de: WO2025246124A1
The present application relates to a winding apparatus and a battery production device. The winding apparatus comprises: a first slitting mechanism, which is configured to slit an electrode sheet to be slit into at least two electrode sheets in the length direction of the electrode sheet to be slit; a second slitting mechanism, which is configured to slit a separator to be slit into at least two separators in the length direction of the separator to be slit; and a winding mechanism, which is configured to wind the slit electrode sheets and the slit separators in a one-to-one correspondence mode to form at least two electrode assemblies. In the present application, a first slitting mechanism can slit an electrode sheet to be slit into at least two electrode sheets, and a second slitting mechanism can slit a separator to be slit into at least two separators, such that the electrode sheets and the separators can be stacked in a one-to-one correspondence mode, and then wound by a winding mechanism to simultaneously form at least two electrode assemblies, effectively improving the winding efficiency of the electrode assemblies, thereby improving the overall production efficiency of batteries.
Resumen de: WO2025245894A1
A battery cell (102) and a processing method therefor, a battery (100), and an electric device (1000), relating to the technical field of batteries. The battery cell (102) comprises a casing component (1), a pole component (2), and a cell component (3). The casing component (1) is provided with an accommodating cavity (13) and comprises a first casing wall (111) which participates in defining the accommodating cavity (13). The pole component (2) is mounted on the first casing wall (111), and the pole component (2) comprises a pole body (21). The cell component (3) comprises cell bodies (32) and an adapter (35). The cell bodies (32) are arranged in the accommodating cavity (13), and the ends of the cell bodies (3) are connected to a tab group (33). The tab group (33) is electrically connected to the pole body (21) by means of the adapter (35). The adapter (35) supports a free end (331) of the tab group (33).
Resumen de: WO2025245772A1
A high-safety battery operation management system and method, relating to the technical field of energy storage battery safety. The battery operation management system comprises a battery state monitoring subsystem, an energy management subsystem, and a safety control subsystem. The safety control subsystem is independent of the energy management subsystem, and controls a temperature control unit and a fire protection unit separately, avoiding complex control processes and raising the priority of control over temperature management and fire protection management by the safety control subsystem, thereby implementing rapid control and rapid response and ensuring the safety in battery operation; in addition, data interaction can be conducted between the energy management subsystem and the safety control subsystem, and intelligent preheating of the working environment of a battery is implemented, enabling the battery to be in an optimal operation state.
Resumen de: WO2025245587A1
There is provided a method for producing a coated substrate, the method comprising: forming an aluminium (oxy) hydroxide slurry by simultaneously feeding streams of an aluminium nitrate solution and a basic solution, such as an ammonia solution, into a liquid over a reaction period, while maintaining an elevated temperature and a controlled pH; allowing a substrate to contact the slurry to thereby form an aluminium (oxy) hydroxide coating on the substrate; separating the coated substrate from the liquid.
Resumen de: WO2025245572A1
The present disclose relates to processes for producing layered transition metal oxide materials and electrodes comprising the same. In particular, the present application relates to processes for producing layered transition metal oxide materials comprising alkali metals and electrodes comprising the same.
Resumen de: WO2025245570A1
Disclosed herein are layered transition metal oxide materials. Also disclosed herein are electrodes comprising layered transition metal oxide materials. In addition, also disclosed herein is the use of such layered transition metal oxide materials in the manufacture of electrodes and electrochemical cells, and processes for making such layered transition metal oxide materials and electrodes.
Resumen de: WO2025245748A1
A battery cell (20), a battery (100), and an electric device. The battery cell (20) comprises a casing (1), an electrode terminal (2), an electrode assembly (3), and an insulating member (4). The electrode terminal (2) is arranged on a wall portion (11) of the casing (1). The electrode assembly (3) is accommodated in the casing (1). A first tab (32) of the electrode assembly (3) is electrically connected to the electrode terminal (2). A first insulating portion (41) of the insulating member (4) surrounds the outer side of the first tab (32). A second insulating portion (42) is connected to the first insulating portion (41) and located between the wall portion (11) and the first tab (32). In the structure, the first insulating portion (41) of the insulating member (4) surrounds the outer side of the first tab (32), and the second insulating portion (42) is located between the wall portion (11) and the first tab (32), such that the insulating member (4) can insulate and isolate the first tab (32) from the casing (1), thereby reducing an insulating treatment process such as applying an insulating adhesive to the first tab (32), and thus improving the production efficiency of the battery cell (20).
Resumen de: WO2025246065A1
A metal electrode sheet, a metal electrode sheet preparation method, an electrode sheet cutting device, a secondary battery, and an electrical apparatus. The metal electrode sheet comprises a main body part and an insulating part. The main body part comprises a metal layer. The insulating part comprises a side surface insulating layer. The side surface insulating layer is arranged on a side surface of the main body part. The side surface insulating layer arranged on the side surface of the main body part can effectively inhibit the deposition and growth of pulverized negative electrode metal material at the cutting position of the metal electrode sheet, thereby improving the safety performance of the secondary battery.
Resumen de: WO2025246523A1
The present application relates to a secondary battery and an electronic device. Specifically, the present application provides a secondary battery, which comprises a positive electrode, a negative electrode and an electrolyte, wherein the positive electrode comprises an insulating layer and a positive electrode active material layer, which are arranged on a current collector; the insulating layer comprises an inorganic additive; and the electrolyte does not contain a fluorine chain carboxylic ester, ethylene sulfate and lithium difluorophosphate. The secondary battery can not only improve the lithium-ion acceptability at low temperatures, but can also inhibit the increase of low-temperature direct-current resistance and improve low-temperature output characteristics.
Resumen de: WO2025246100A1
A gluing apparatus, comprising a battery conveying mechanism (1), a positioning mechanism (2), and a pickup and bonding mechanism (3). The battery conveying mechanism has a battery conveying path extending along a first direction, and the battery conveying path has a gluing position. The battery conveying mechanism is made to carry a battery cell (100) from one side in a second direction intersecting the first direction, and convey the battery cell along the battery conveying path. At least one of two opposite surfaces of the battery cell being conveyed on the battery conveying path is a surface (101) to be glued, the two opposite surfaces being along a third direction, and the third direction intersecting with both the first direction and the second direction. The positioning mechanism is made to be capable of positioning the battery cell to be conveyed to the gluing position at the gluing position. The pickup and bonding mechanism is made to be capable of picking up a sheet of adhesive (200) and bonding the sheet of adhesive to the surface of the battery cell to be glued. The gluing apparatus has a simple structure, and can improve the positional accuracy when stopping the battery cell, thereby improving gluing accuracy. Further comprised is a gluing method using the gluing apparatus.
Resumen de: WO2025245891A1
A battery cell, a battery and an electric device. The battery cell comprises: a casing component, which comprises a casing body, wherein an open end and a first casing wall are respectively formed at two opposite ends of the casing body, the first casing wall being provided with a mounting hole; a second casing wall is formed on at least one side of the casing body adjacent to the first casing wall; a guide portion is provided between the second casing wall and the first casing wall, the guide part comprising a guide face located in the casing body, and in the direction from the open end to the first casing wall, the distance between the guide face and an inner wall surface of the second casing wall gradually increasing; a terminal post component, which is mounted on the first casing wall and covers the mounting hole, wherein the terminal post component comprises a terminal post body arranged opposite the mounting hole; and a battery cell component, which is accommodated in an accommodating cavity of the casing body and is connected to the terminal post body.
Resumen de: WO2025245896A1
A battery cell (102), a battery (100), and an electrical apparatus, belonging to the technical field of batteries. The battery cell (102) comprises: a casing component (1), a pole component (2), and an electrode component (3), the casing component (1) having an accommodating cavity (13) and comprising a first casing wall (111) which participates in enclosingly forming the accommodating cavity (13). The electrode component (3) is accommodated in the accommodating cavity (13). The pole component (2) and the first casing wall (111) are located on the same side of the electrode component (3) and are mounted on the first casing wall (111). The electrode component (3) is connected to the pole component (2) by means of a conductive portion (4), an accommodating recess (5) in communication with the accommodating cavity (13) is formed at the pole component (2), the accommodating recess (5) is open in the direction facing the electrode component (3) and is at least partially surrounded by the pole component (2), and at least part of the conductive portion (4) is accommodated in the accommodating recess (5).
Resumen de: WO2025245889A1
A battery cell (102) and an assembling method therefor, a battery (100), and an electric device. The battery cell (102) comprises a casing component (1), a pole component (2), and an electrode component (3). The casing component (1) defines an accommodating cavity (13) and comprises a mounting wall (111). The pole component (2) is mounted to the mounting wall (111) and comprises a pole body (21). The electrode component (3) is accommodated in the accommodating cavity (13) and comprises an active substance coating portion (32) and a conductive portion (33). The conductive portion (33) is connected between the active substance coating portion (32) and the pole body (21). The conductive portion (33) is bent to form at least two opening slots (334), openings of two opening slots (334) face different directions, and the two opening slots (334) are spaced apart in the thickness direction of the mounting wall (111). The conductive portion (33) can play a better buffering role, and can also reduce the risk of short circuit of the battery cell (102), thereby alleviating mutual interference and scratching between tabs (311) in the conductive portion (33), and improving the reliability of the battery cell (102).
Nº publicación: WO2025247650A1 04/12/2025
Solicitante:
BASF SE [DE]
BASF SE
Resumen de: WO2025247650A1
This invention provides a method for producing a lithium-metal composite oxide using a two-stage firing process comprising a preliminary firing step for heating a precursor compound of a lithium-metal composite oxide and a lithium compound at a temperature of 500ºC to 650ºC to obtain a preliminary fired product; a pelletizing step for producing a pellet of the preliminary fired product; and a firing step for firing the pellet at a temperature of 700ºC to 1000ºC, such method is capable of minimizing the difference between a raw material metal ratio and the metal composition in a lithium-metal composite oxide, which occurs as a result of lithium element volatilization, and minimizing corrosion of a furnace body by lithium hydroxide.
BOPI
Sede Electrónica
