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1719
resultados
Última actualización
07/06/2025 [07:24:00]
Resultados 450 a 475 de 1719
Resumen de: WO2025112403A1
Disclosed in the present application are a tab threading device for a battery, and an assembly apparatus and an assembly method. The battery comprises a case and an electrode assembly, wherein the case is provided with an accommodating cavity and through holes; and the electrode assembly is arranged in the accommodating cavity. The tab threading device is used for guiding tab parts of the electrode assembly to extend out through the through holes. The tab threading device comprises a guide member and a supporting mechanism, wherein the supporting mechanism is connected to the guide member; and the guide member is configured to extend into the accommodating cavity and guide the tab parts to extend from the accommodating cavity through the through holes. In this way, the present application can effectively reduce the assembly difficulty of the battery.
Resumen de: WO2025112251A1
Provided in the present application are a modified lithium-rich manganese-based positive electrode material, a preparation method therefor, and the use thereof. The preparation method comprises the following steps: (1) cocurrently injecting a mixed metal salt solution, a precipitant and a complexing agent into a base solution, and performing a primary coprecipitation reaction; (2) stopping injecting the mixed metal salt solution, cocurrently injecting a manganese salt solution, the precipitant and the complexing agent into the reaction solution, carrying out a secondary coprecipitation reaction, and performing low-temperature pre-sintering treatment on the obtained particles, so as to obtain a modified precursor; and (3) mixing the modified precursor with a lithium source, and performing sintering treatment to obtain the modified lithium-rich manganese-based positive electrode material. The present application can improve the structural stability of the interior of the material while ensuring a high specific surface area of the lithium-rich manganese-based positive electrode material. In addition, the spinel-phase manganese oxide can prevent performance deterioration of the material during charging and discharging processes.
Resumen de: WO2025112402A1
Disclosed in the present application are a tab threading apparatus, assembling device and assembling method for batteries. The battery comprises a casing and an electrode assembly, the casing being provided with an accommodation cavity, and a through hole being formed in the casing. The electrode assembly is arranged in the accommodation cavity, and the tab threading apparatus is used for guiding a tab portion of the electrode assembly to extend out of the through hole. The tab threading apparatus comprises a clamping mechanism and a driving mechanism, and the driving mechanism is configured to drive the clamping mechanism to clamp the tab portion located in the accommodation cavity to extend out of the accommodation cavity through the through hole. In this way, the present application can effectively reduce the assembly difficulty of batteries.
Resumen de: WO2025111852A1
Provided are a doped and coated sodium-ion positive electrode material, a preparation method therefor and a use thereof. The doped and coated sodium-ion positive electrode material comprises a core and a coating layer located on the surface of the core; the core comprises a nickel-iron-manganese sodium-ion positive electrode matrix and a titanium element doped in the nickel-iron-manganese sodium-ion positive electrode matrix; and the coating layer comprises a titanium-containing oxide. According to the provided sodium-ion positive electrode material, by synergistically combining bulk doping of titanium in the core with a titanium-containing oxide surface coating, the voltage decay is mitigated while the capacity is increased.
Resumen de: WO2025112306A1
Disclosed in the present application are a wrapping apparatus and wrapping method for an electrode assembly. The electrode assembly comprises an electrode main body and a tab portion, wherein the electrode main body has a first direction, a second direction and a third direction, and comprises two main surfaces, two end surfaces and two side surfaces, and the tab portion protrudes from the first one of the two end surfaces. The wrapping apparatus comprises a first wrapping assembly and a first positioning assembly. The first wrapping assembly is configured to position a wrapping film. The wrapping film comprises two main wrapping areas and a connecting area, with an opening being provided in the connecting area. The first positioning assembly is configured to position the electrode assembly and arrange the tab portion to face the connecting area. The first positioning assembly and the first wrapping assembly are configured to move relative to each other, such that the tab portion passes through the opening along with the relative movement of the first positioning assembly and the first wrapping assembly, and the connecting area wraps around the first one of the two end surfaces. In this way, the interference of the tab portion on the wrapping process can be reduced, and the wrapping effect is improved.
Resumen de: WO2025112307A1
Disclosed in the present application are a wrapping apparatus and wrapping method for an electrode assembly. The electrode assembly comprises an electrode main body, wherein the electrode main body has a first direction, a second direction and a third direction that are orthogonal to each other, and comprises two main surfaces, two end surfaces and two side surfaces. The wrapping apparatus comprises a first positioning assembly and a first wrapping assembly. The first positioning assembly is configured to position the electrode assembly and keep the two main surfaces exposed. The first wrapping assembly is configured to position a wrapping film. The wrapping film comprises two main wrapping areas and a connecting area. At least one of the first positioning assembly and the first wrapping assembly is configured to be movable relative to the other, such that the connecting area contacts and wraps around the first one of the two end surfaces, and the two main wrapping areas respectively make contact with and wrap around the exposed portions of the corresponding ones of the two main surfaces. In this way, continuous wrapping of a plurality surfaces of the electrode assembly can be achieved.
Resumen de: WO2025115862A1
The electric power storage module (10) comprises: a plurality of electric power storage devices (20); a case (40) that holds a plurality of the electric power storage devices (20); a cooling liquid (50) that immerses a plurality of the electric power storage devices (20) in the case (40); and a positive electrode current collector plate (60) that connects the positive electrode terminals (26A) of the electric power storage devices (20) to each other. The positive electrode current collector plate (60) contains a residual part and a fuse link part (63) having a higher resistance than the residual part, and a heat insulation part is formed on the outer surface of the fuse link part (63).
Resumen de: WO2025116495A1
The present invention relates to a battery pack including: a battery cell stack composed of a plurality of battery cells; a pack frame body on which the battery cell stack is mounted; a top plate coupled to the upper portion of the pack frame body; and a first end plate and a second end plate which are respectively coupled to both ends of the coupled body of the pack frame body and the top plate, wherein mounting holes for assembly are formed in the first end plate and the second end plate. When a temporarily assembled battery pack is mounted on a jig for assembly, interference may be reduced, thereby preventing assembly defects.
Resumen de: WO2025116480A1
The present invention relates to a negative electrode for a lithium-free secondary battery, which can reduce galvanic corrosion and side reactions on the negative electrode while being lightweight and thin and enables uniform electrodeposition of lithium metal, and a manufacturing method therefor, wherein the negative electrode for a lithium-free secondary battery is characterized by comprising: a porous metal layer having a three-dimensional microstructure; and a conductive carbon nanostructure formed on the porous metal layer, wherein the porous metal layer comprises a metal mesh layer in which a fibrous metal having a micron-scale diameter forms a network structure, and a metal nanostructure formed on the fibrous metal, and at least some parts of the metal nanostructure are connected to each other to define a plurality of pores on the porous metal layer.
Resumen de: WO2025116452A1
Disclosed is a battery module having improved cycle performance, and the like. A battery module, according to one aspect of the present invention, comprises: a cell assembly having a plurality of battery cells, each of which has an electrode terminal and is mutually stacked in at least one direction; a module case accommodating the cell assembly in an internal space thereof; a cooling member positioned on at least one side of the cell assembly so as to discharge heat via a coolant; and a heat dissipation member disposed opposite at least one battery cell so as to transfer heat from the battery cell to the cooling member, and configured to partially protrude from the cooling member side.
Resumen de: WO2025113290A1
Embodiments of the present disclosure relate to a battery module and a battery pack. The battery module comprises a frame, a plurality of bare cells, a sealing assembly, and a cooling assembly. The frame is provided with an accommodating space. The plurality of bare cells are arranged in the accommodating space. The sealing assembly is connected to the frame and seals the accommodating space. The cooling assembly comprises a liquid inlet pipe, a liquid inlet connector, and a liquid outlet connector, wherein the liquid inlet connector and the liquid outlet connector are both arranged on the outer side of the frame and located on the same side of the frame, the liquid inlet pipe is arranged in the accommodating space, one end of the liquid inlet pipe is connected to the liquid inlet connector, and the other end of the liquid inlet pipe extends to the side of the accommodating space away from the liquid inlet connector. According to the battery module and the battery pack, the problem of being difficult to meet the requirement of thermal management required by the battery can be mitigated.
Resumen de: WO2025113185A1
An electrolyte for a secondary lithium battery. The electrolyte comprises a first solvent, a second solvent, a first lithium salt, and an optional second lithium salt. By formulating the electrolyte from specific solutes and solvents, the interaction between the electrolyte and a lithium-metal negative electrode can be improved, the formation of lithium dendrites and internal electrochemical reactions of a battery can be reduced, the ion conduction performance of the battery can be improved, and the cycle life of the battery can be prolonged, thereby facilitating the commercialization of a lithium-metal solid-state battery.
Resumen de: WO2025112806A1
The present application belongs to the technical field of batteries. Provided are a positive electrode material of a sodium-ion battery and a preparation method therefor, a positive electrode sheet, a battery and an electric device. The positive electrode material of a sodium-ion battery comprises: a sodium-containing positive electrode material substrate and a modification layer formed on at least part of the surface of the sodium-containing positive electrode material substrate, wherein the modification layer comprises a sodium-metal oxide salt and a carbon material, the sodium-metal oxide salt comprising an assistant metal element, phosphorus and boron.
Resumen de: WO2025113275A1
A multi-row coating device. The multi-row coating device comprises an unwinding device, a coating structure, a water washing device, an anti-oxidation device, and a winding device which are sequentially and linearly arranged in an electrode sheet conveying direction. The coating structure comprises multiple rows of coating tanks, multiple cathode rollers (1) and multiple anode rollers (2) are correspondingly arranged on each row of coating tanks in the electrode sheet conveying direction, and an effective coating width between a single cathode roller (1) and a single anode roller (2) which are correspondingly arranged is less than or equal to 800 mm.
Resumen de: WO2025112404A1
Disclosed in the present application are a tab threading device for a battery, and an assembly apparatus. The battery comprises a case and an electrode assembly, wherein the case is provided with an accommodating cavity and through holes. The tab threading device is used for guiding tab parts of the electrode assembly to extend out through the through holes. The tab threading device comprises a clamping mechanism and a driving mechanism, wherein the clamping mechanism comprises a first clamping member and a second clamping member; and the driving mechanism is configured to drive the first clamping member and/or the second clamping member to move, so that the first clamping member and the second clamping member can clamp the tab parts to pass through the through hole and extend from the accommodating cavity. In this way, the present application can effectively reduce the assembly difficulty of the battery.
Resumen de: WO2025112325A1
The present invention belongs to the technical field of battery separators, and provides a porous separator and a preparation method therefor, and a lithium-ion battery. The porous separator is mainly prepared from a polyamide material; and the pore structure of the porous separator is mainly elliptical or ellipse-like, and the relationship between the length a of a major axis and the length b of a minor axis in the pore structure satisfies a≥1.5b, wherein a is in the range of 0.3-6 μm, and b is in the range of 0.1-3 μm. The method for preparing the porous separator comprises the following step: subjecting a semi-solidified film to simultaneous drawing and pore-forming, wherein the semi-solidified film contains a polyamide material. By means of the process, a unique oriented microporous structure can be formed, which is conducive to improving the porosity and air permeability of the separator; moreover, the separator has a good thermal stability and is more suitable for a high-power lithium-ion battery.
Resumen de: WO2025112323A1
A battery separator and a preparation method, and a battery. The battery separator comprises a base membrane, a first bonding layer, a heat-resistant layer, and a second bonding layer. The first bonding layer has a first thickness H1 μm, and has a first coverage rate C1% for the base membrane, the heat-resistant layer has a second thickness H2 μm, the second bonding layer has a third thickness H3 μm, and has a second coverage rate C2 % for the heat-resistant layer, and it is satisfied that: H2>H1+H3, C2=(0.6-1.2)*(H1+H3)/H2%, and C1=(0.1-0.3)*H2/H1%.
Resumen de: WO2025112245A1
A current collector welding jig, comprising a pressing member (1) and an air inlet channel (2a). The pressing member is provided with an accommodation recess (1a) for accommodating a current collector (4). The pressing member is provided with an air passing channel (1b) and a plurality of clearance recesses (1c). The clearance recesses are distributed in the peripheral side of the air passing channel so as to expose areas to be welded on the current collector, each clearance recess communicating with the air passing channel. One end of the air inlet channel communicates with an air source, and the other end thereof communicates with the air passing channel, so that protective gas in the air inlet channel can flow to the clearance recesses through the air passing channel. The present invention further relates to a current collector welding device and a current collector welding method.
Resumen de: WO2025112301A1
A composite current collector, a pole piece, a secondary battery and an electrical apparatus. The composite current collector comprises a supporting layer, and a bonding layer and a conductive layer which are sequentially stacked on at least one side surface of the supporting layer. The conductive layer comprises a conductive layer main body and first protruding parts. The first protruding parts protrude in the thickness direction of the conductive layer and are embedded into the bonding layer.
Resumen de: WO2025112300A1
An electrolyte, a lithium secondary battery and an electric device. The electrolyte comprises a first solvent, a silane compound containing a carbon-carbon double bond and a cyclic lithium borate compound, wherein the first solvent comprises a cyclic carbonate compound; and based on the total mass of the electrolyte, the mass content W3 of the cyclic carbonate compound, the mass content W1 of the silane compound containing a carbon-carbon double bond and the mass content W2 of the cyclic lithium borate compound satisfy: 0.001≤(W1+W2)/W3≤2.67. The silane compound containing a carbon-carbon double bond and the cyclic lithium borate compound are used in combination, and therefore the flexibility and thermal stability of an SEI film can be improved, thereby reducing the degrees of gas production of a lithium secondary battery during the processes of cycling and storage and improving the storage performance, fast-charging performance and cycle performance of the lithium secondary battery.
Resumen de: WO2025112155A1
Provided in the present application is a battery pack. The battery pack comprises: a case having an accommodating cavity; a battery module located in the accommodating cavity; an integrated busbar located in the accommodating cavity and connected to the battery module, the integrated busbar comprising buses and a plurality of insulating supports, the plurality of insulating supports being spaced apart, a slot portion being recessed from each insulating support in the first direction, and the buses being arranged in the slot portions; and heat-conducting portions located in the slot portions and connected to the side of the buses away from the battery module.
Resumen de: WO2025112291A1
The present application provides a battery separator, which is characterized by comprising a base film and a ceramic coating located on at least one side of the base film, wherein the difference between the contact angle of the base film and the contact angle of the ceramic coating is≤15 degrees. The battery separator of the present application has high adhesion, high liquid retention and high ionic conductivity, thereby improving the cycle characteristics and rate characteristics of batteries.
Resumen de: WO2025116491A1
The present invention relates to a cathode material and a preparation method therefor, the cathode material comprising: a first cathode active material, which is in the form of a secondary particle obtained by aggregation of a plurality of primary particles, contains nickel, cobalt, and manganese, with 70 mol% or more of nickel among the total metals, and has a first average particle diameter (D50); and a second cathode active material having a second average particle diameter (D50) different from the first average particle diameter (D50), wherein the first cathode active material has an average aspect ratio of 0.86-0.94, which is the arithmetic average value of the aspect ratio defined by Equation 1 below, and an average compactness of 0.89-0.96, which is the arithmetic average value of the compactness defined by Equation 2 below. Equation 1 Aspect ratio = ra / R; Equation 2 Compactness) = rc / R. In Equations 1 and 2, R represents the length of the long axis passing through the center of the first cathode active material particle, ra represents is the length of the short axis passing through the center of the first cathode active material particle, and rc represents the diameter of a circle having the same area as the area of the first cathode active material.
Resumen de: WO2025116415A1
Disclosed are an anode comprising a silicon-based anode active material, and a lithium secondary battery comprising the anode. Specifically, disclosed is a lithium secondary battery capable of improving the electrochemical performance of a battery comprising a silicon-based anode active material by using an electrolyte solvent including fluorine.
Nº publicación: WO2025116407A1 05/06/2025
Solicitante:
POSCO HOLDINGS INC [KR]
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Resumen de: WO2025116407A1
The present invention relates to a sulfide-based solid electrolyte comprising a sulfide-based compound which contains lithium (Li), phosphorus (P), sulfur (S), and a halogen element (D) and has an argyrodite-based crystal structure, wherein the compound further includes a basic functional group (E), the molar ratio (D/P) of the halogen element (D) to phosphorus (P) in the compound is 1-2, and the moisture stability of the compound is 75% or more.
BOPI
Sede Electrónica
