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1057
resultados
Última actualización
21/11/2025 [07:10:00]
Resultados 425 a 450 de 1057
Resumen de: WO2025234578A1
According to one embodiment, proposed are a polymer electrolyte and a lithium secondary battery, wherein the polymer electrolyte comprises: a negative electrolyte including a crosslinked polymer; and a positive electrolyte disposed on the negative electrolyte, wherein the crosslinked polymer includes: repeating units (A) derived from an ester-based monomer; and repeating units (B) derived from an alkylene oxide-based monomer. The polymer electrolyte and the lithium secondary battery comprising same can prevent the formation of lithium dendrites and improve lithium ion conductivity.
Resumen de: WO2025234592A1
The present invention provides a non-aqueous electrolyte comprising: a lithium salt; and an organic solvent, wherein the organic solvent comprises ethylene carbonate and a compound represented by chemical formula 1, and the volume ratio of the compound represented by chemical formula 1 to the ethylene carbonate is in the range of 0.20 to 3.0. Chemical Formula 1 The description of Chemical Formula 1 is as described in the description of the invention.
Resumen de: WO2025235353A1
A system and a method for electrodeposition of lithium metal are provided. The system includes a reservoir of electrolyte composition comprising a solvent, a hydrolytically stable lithium salt, a hydrolytically unstable salt, and water, a vessel containing additives, and a power source for electrodepositing a lithium metal. The method includes providing a counter-electrode, providing the electrolyte composition between a substrate and the counter-electrode, and applying a current between the substrate and the counter-electrode to electrodeposit a lithium metal film on the substrate. In various embodiments, the hydrolytically unstable salt, the water, and a second solvent are pre-mixed prior to combining with the hydrolytically stable lithium salt and the solvent to form the electrolyte composition. The additives may include a second hydrolytically unstable salt, a second solvent, and additional amount of water with a sufficient concentration to partially hydrolyze the second hydrolytically unstable salt.
Resumen de: WO2025234725A1
Disclosed are a lithium all-solid-state battery and a method for manufacturing same. The lithium all-solid-state battery comprises: a positive electrode; a negative electrode current collector; a solid electrolyte layer between the negative electrode current collector and the positive electrode; and a silicon-containing metal layer on the solid electrolyte layer-facing surface of the negative electrode current collector. Through charging, lithium metal ions move from the positive electrode to the silicon-containing metal layer on the surface of the negative electrode current collector to form lithium metal on the negative electrode current collector. The ratio (Ns/P) of the charging capacity (Ns) of the silicon-containing metal layer to the charging capacity (P) of the positive electrode is less than 0.3.
Resumen de: WO2025234775A1
The present disclosure provides an all-solid-state battery comprising: electrode assemblies each comprising an electrode stack which comprises a positive electrode, an electrolyte membrane, and a negative electrode, and a pair of protective layers which are positioned on the positive electrode side and the negative electrode side, respectively, of the electrode composite; and a separator zigzaggedly surrounding the electrode assemblies so that the electrode assemblies are positioned in the folded portions thereof.
Resumen de: WO2025234650A1
The present invention relates to a secondary battery having excellent discharge performance and a manufacturing method therefor, wherein the secondary battery comprises an asymmetric separator, the asymmetric separator comprises a porous support layer and an ion-exchangeable polymer layer coated on one surface of the porous support layer, and the ion-exchangeable polymer layer of the asymmetric separator is disposed to face a negative electrode. The secondary battery according to the present invention exhibits excellent discharge performance, can be particularly useful in models where battery charging and ESS preparation are performed constantly and slowly at low C-rates and rapid discharge is performed, and can be used in a UPS, an ESS for charger assistance, and the like. In addition, as the C-rate increases, the effect increases rapidly, and thus, effective power assistance is possible.
Resumen de: WO2025234673A1
The present invention relates to a separator for an electrochemical device, and a preparation method therefor. In particular, the separator according to one aspect of the present invention is prepared using electrospinning so as to have improved pore characteristics, and thus when the separator prepared using electrospinning is used in an electrochemical device, electrochemical performance is improved. The separator for an electrochemical device, according to the present invention, comprises a polymer composite film that includes polymer nanofibers and inorganic particles bound by the polymer nanofibers, wherein the polymer composite film includes a three-dimensional network structure formed by the polymer nanofibers and a pore structure formed by gaps between the polymer nanofibers, the inorganic particles have a fracture toughness of 0.8 MPa·m1/2 or more, and the thickness of the polymer composite film is 15 μm or less.
Resumen de: WO2025235164A1
Disclosed herein is an electrolyte comprising an asymmetric F-ether (AFE) and a cosolvent and batteries comprising the same. In some embodiments, the AFE has a formula of R1OR2, wherein R1 includes at least one fluorine atom (F), and R2 is free of F. In some embodiments, the co-solvent is an ether and is not an AFE. An electrochemical device comprising the electrolyte exhibits an improved cycling performance and fast charging performance.
Resumen de: WO2025234651A1
The present invention relates to a secondary battery and a manufacturing method therefor, and provides a secondary battery and a manufacturing method therefor, the secondary battery comprising a first cell and a second cell, wherein each of the first cell and the second cell comprises a positive electrode, a negative electrode, an electrolyte, and a separator, the separator comprises a porous support layer and an ion-exchangeable polymer layer coated on one surface of the porous support layer, the ion-exchangeable polymer layer of the separator of the first cell is disposed toward the positive electrode of the first cell, and the ion-exchangeable polymer layer of the separator of the second cell is disposed toward the negative electrode of the second cell, and the first cell and the second cell are connected in parallel. The secondary battery according to the present invention exhibits excellent charge/discharge performance, energy efficiency, and voltage stability, and thus can be advantageously used in a general power system that requires all of these performances.
Resumen de: WO2025234728A1
The present invention relates to: a cathode active material; and a cathode and a lithium secondary battery which comprise same, the cathode active material capable of improving the performance of a lithium secondary battery and comprising a lithium iron phosphate manganese-based compound having a manganese (Mn) content of less than 50 mol% among all metals excluding lithium, wherein the lithium iron phosphate manganese-based compound includes doping elements (M), and the doping elements (M) are at least three selected from the group consisting of Al, B, Co, Mg, and Ni.
Resumen de: WO2025234177A1
This treatment system for a waste lithium ion battery comprises: a pyrolysis system for roasting a waste lithium ion battery at a first temperature to generate a roasted product; a first dissolution tank for immersing the roasted product in water; a first separator for performing first solid-liquid separation on an aqueous solution after immersion in the first dissolution tank; a first crystallization machine for performing first crystallization for precipitating lithium carbonate from the aqueous solution separated by the first solid-liquid separation; a second separator for performing second solid-liquid separation on a slurry containing the lithium carbonate precipitated by the first crystallization to recover the lithium carbonate; and a polishing machine for polishing the roasted product so as to have a predetermined average particle diameter or less before introducing the roasted product into the first dissolution tank.
Resumen de: WO2025234698A1
The present invention provides a battery device comprising: a housing including a base frame and a top frame; a plurality of battery cells disposed on the base frame; a top pad covering the plurality of battery cells and in contact with the plurality of battery cells; and a flame blocking cover attached to the top pad and spaced apart from the top frame with a venting space therebetween.
Resumen de: WO2025234686A1
The present invention provides a structure of an electrode stacking device having a tension compensation unit for applying a compensatory tension to a widthwise central portion of a separator in order to prevent a phenomenon in which the central portion and both end portions of the separator are non-uniformly tensioned and deformed in a zigzag stacking process.
Resumen de: WO2025234649A1
The present invention relates to a secondary battery with improved charging performance and a manufacturing method therefor, and provides a secondary battery with improved charging performance and a manufacturing method therefor, the secondary battery comprising an asymmetric separator comprising: a porous support layer; and an ion-exchangeable polymer layer coated on one surface of the porous support layer, wherein the ion-exchangeable polymer layer of the asymmetric separator is disposed to face a positive electrode. According to the present invention, the separator enables the smooth flow of hydrogen ions from the positive electrode to the negative electrode, thereby reducing energy loss during charging and allowing a high amount of charge energy even under severe charging conditions, so that the present invention can be advantageously used in various fields, particularly, fields requiring fast charging.
Resumen de: WO2025232619A1
An electrode sheet embossing device, comprising a support (110), a front rolling mechanism (120), a rear rolling mechanism (130), a first connecting rod (140), a second connecting rod (142), and an adjustment mechanism (150). When electrode sheets with different widths are required to be embossed, adjustment can be performed by means of the adjustment mechanism (150), such that a distance between a first front embossing roller (121) and a second front embossing roller (122) and a distance between a first rear embossing roller (131) and a second rear embossing roller (132) are matched with the width of each electrode sheet, thereby embossing the electrode sheets with different widths. Moreover, the first front embossing roller (121) and the first rear embossing roller (131) can remain synchronized and maintain the relative position fixed under the action of the first connecting rod (140), and the second front embossing roller (122) and the second rear embossing roller (132) can also remain synchronized and maintain the relative position fixed under the action of the second connecting rod (142). In this way, the adjustment mechanism (150) can adjust the front rolling mechanism (120) and the rear rolling mechanism (130) at the same time, so that the number of operations can be reduced, and the operation difficulty can also be reduced.
Resumen de: WO2025232905A1
The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. The battery cell comprises: a casing provided with an opening; a cover plate arranged corresponding to the opening and connected to the casing to define an accommodating space; and an electrode assembly arranged in the accommodating space, wherein the electrode assembly comprises tabs, ultrasonic welding marks are provided on the tabs to connect the tabs arranged in layers, the tabs and the cover plate are laser-welded to form laser welding marks on the tabs, and the laser welding marks are located within the ultrasonic welding marks; distances from edges of each laser welding mark to corresponding edges of the corresponding ultrasonic welding mark are respectively a, b, c, and d, which satisfy a≥0.5 mm, b≥0.5 mm, c≥0.5 mm, and d≥0.5 mm. In the present application, the tabs of all electrode sheets are connected into an integral whole by means of ultrasonic welding, and the tabs are then connected to the cover plate by means of laser welding, so that components such as a connecting piece, a pole, and a lower plastic component are not required, thereby increasing the internal space utilization rate of batteries, improving the volumetric and gravimetric energy density of batteries, and preventing weld spatter.
Resumen de: WO2025232909A1
Disclosed in the present invention is a rechargeable portable battery control method, comprising a charging control method and a discharging control method. The charging control method comprises normal-temperature charging control; charging high-temperature protection; and charging low-temperature control. The discharging control method comprises: discharging high-temperature protection: during discharging, when a control circuit detects that a battery temperature has reached or exceeded a set high-temperature protection point, stopping discharging until the control circuit detects that the temperature has reached a set safety value, and then restarting discharging; discharging cut-off: during discharging, when the control circuit detects that an internal lithium ion cell voltage has reached a set discharging cut-off voltage of a lithium ion battery, the control circuit stopping output; and discharging recovery: when the control circuit detects that the internal lithium ion cell voltage has reached the set discharging recovery voltage, the control circuit recovering output. In the present invention, by using a segmented variable parameter control method, high flexibility is achieved, and output voltage drop slope can be adjusted on the basis of different applications, thereby better adapting to application requirements.
Resumen de: WO2025232566A1
The present application belongs to the technical field of battery packs. Disclosed are a battery pack and an electric device. The battery pack has a first direction, a second direction and a third direction which intersect in pairs. The battery pack comprises: a frame, the frame enclosing an accommodating cavity having an opening, and first mounting holes being provided in the frame and penetrating through the frame in the first direction; connecting sleeves, the connecting sleeves being embedded in the first mounting holes, and a first through hole being provided in each connecting sleeve; a cover, the cover fitting on the accommodating cavity in a covering manner and being provided with second through holes, and the second through holes being opposite the first through holes; and fasteners, the fasteners running through the first through holes and the second through holes and connecting the cover to the frame, and the fasteners protruding out of the cover in the first direction so as to connect the frame to an electric device.
Resumen de: WO2025232506A1
Disclosed are a coating device and a battery production line The coating device comprises a container (1) for storing a coating liquid, an injection pump (7), a coating die head (8), a conveying channel (6) and a degassing unit (2), wherein the container (1) is connected to the injection pump (7) via the conveying channel (6), the injection pump (7) is connected to the coating die head (8), and the degassing unit (2) is arranged on the conveying channel (6). Gas removal is performed on the coating liquid by means of the degassing unit (2), and the coating liquid is conveyed by using the injection pump (7), so that the gas content in the coating liquid is reduced, thus improving the uniformity for coating substrates with the coating liquid.
Resumen de: WO2025232435A1
The present disclosure relates to the technical field of battery processing devices, and in particular to a die-cutting mechanism and a battery cell winding device. The die-cutting mechanism comprises: a material strip guide assembly used for guiding a material strip so that the material strip can be conveyed in a first direction by a preset distance and then be conveyed downstream in a second direction different from the first direction, the position where the material strip turns from the first direction to the second direction being a material strip turning position; a die-cutting assembly used for die-cutting a waste material on the material strip on the upstream of the material strip turning position, so that tabs are formed on the material strip; a waste material suction assembly opposite to the material strip to suction the waste material and the tabs; a waste material receiving assembly used for suctioning the waste material on the waste material suction assembly by means of a suction port; and a shielding member used for reducing the suction force of the suction port to the material strip. The die-cutting mechanism provided by the present disclosure can make tabs relatively flat, so that battery cells have good quality.
Resumen de: WO2025232434A1
The present disclosure relates to the technical field of battery processing apparatuses, in particular to a die cutting mechanism and a battery cell winding apparatus. The die cutting mechanism comprises: a material tape guide assembly, the material tape guide assembly being used for guiding a material tape such that the material tape can be conveyed for a preset distance in a first direction and then conveyed downstream in a second direction different from the first direction, wherein the position where the material tape changes from the first direction to the second direction is a material tape turning position; a die cutting assembly, the die cutting assembly being used for performing die cutting on a waste material on the material tape upstream of the material tape turning position, so as to form tabs on the material tape; and a waste material suction assembly, the waste material suction assembly comprising a linear section suction surface, the linear section suction surface being parallel to and opposite to the material tape conveyed in the first direction so as to vacuum-fix the waste material and the tabs, and the orthographic projection of the material tape turning position towards the linear section suction surface being at least partially located in the linear section suction surface. The die cutting mechanism provided by the present disclosure can enable tabs to be flatter, thus allowing the quality of battery cells to be better.
Resumen de: WO2025232446A1
A secondary battery and an electronic apparatus. The secondary battery comprises a positive electrode, a negative electrode and an electrolyte, wherein the positive electrode comprises a lithium cobalt oxide and a polymer P, the negative electrode comprises graphite and silicon-carbon, and the electrolyte comprises lithium difluorophosphate, 1,3,6-hexanetricarbonitrile and a nitrogen-containing lithium salt. The design not only can improve the cycle performance and the low-temperature rate performance of the secondary battery, but also can remarkedly improve the electrode swelling resistance after cycling.
Resumen de: WO2025232487A1
Provided in the embodiments of the present application are a power battery and an electric vehicle. The electric vehicle comprises a radiator, a first cooling loop, a second cooling loop and a power battery. The first cooling loop is connected to the radiator, and the second cooling loop is used for connecting to an out-of-vehicle cooling apparatus. The radiator comprises a filling port and a filling cap covering the filling port. During the period from receiving a coolant liquid output from the out-of-vehicle cooling apparatus to reconnecting to the out-of-vehicle cooling apparatus, the electric vehicle is used for: if the filling cap has not been opened, sending a message used for instructing the out-of-vehicle cooling apparatus to output the coolant liquid; or if the filling cap has been opened, not sending the message used for instructing the out-of-vehicle cooling apparatus to output the coolant liquid, or sending a message used for instructing the out-of-vehicle cooling apparatus not to output the coolant liquid. While allowing the second cooling loop of the electric vehicle to use the coolant liquid provided by the out-of-vehicle cooling apparatus to dissipate heat of the power battery, the embodiments of the present application can also prevent the contaminated coolant liquid in the radiator from spreading to the out-of-vehicle cooling apparatus.
Resumen de: WO2025234588A1
The present invention relates to a solid electrolyte for an all-solid-state lithium ion battery. The solid electrolyte for an all-solid-state lithium ion battery, according to one embodiment of the present invention, is composed of an oxide comprising Li, B, Al, Y, and Cl.
Nº publicación: WO2025234722A1 13/11/2025
Solicitante:
ANPOLY INC [KR]
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Resumen de: WO2025234722A1
Disclosed in the present invention is a binder composition for a lithium ion battery. The binder composition for a lithium ion battery comprises: a cellulose nanofiber; and a plurality of different types of aqueous binder compounds.
BOPI
Sede Electrónica
