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586
resultados
Última actualización
25/08/2026 [07:49:00]
Resultados 250 a 275 de 586
Resumen de: US20260246063A1
A membrane arrangement includes a bursting membrane and at least one reinforcing frame, wherein the reinforcing frame is connected to the bursting membrane, wherein the reinforcing frame connected to the bursting membrane is configured to be inserted into a cell housing on the inside and to be connected to the cell housing on the outside by a thermal joining process, and a related method includes connecting a bursting membrane to a battery cell housing and a battery cell with a membrane arrangement.
Resumen de: US20260243838A1
The method determines the degree of deterioration of an electrode to be recycled. The method includes: estimating characteristic parameters of the secondary battery subject to determination at the time of determination (step S1); obtaining the relationship between the electrolyte diffusion coefficient and the discharge capacity (step S2); based on the relationship between the electrolyte diffusion coefficient and the discharge capacity, determining a threshold value Dth of electrolyte diffusion coefficient (step S3); and comparing the threshold value Dth and a threshold value Dth0 of electrolyte diffusion coefficient before deterioration obtained in advance for the secondary battery subject to determination or a secondary battery of the same type as the secondary battery subject to determination, and, based on the difference between the threshold value Dth and the threshold value Dth0, ΔDth=Dth−Dth0, classifying the secondary battery subject to determination (step S4).
Resumen de: US20260245964A1
0000 The present disclosure relates to a lithium secondary battery electrolyte comprising a phosphorofluoridate compound represented by chemical formula 1 and a lithium secondary battery comprising same. The lithium secondary battery comprising the electrolyte according to one embodiment produces an output that does not degrade even under high voltage, and has excellent lifespan characteristics, a high capacity recovery rate at high temperature, and excellent storage stability. In addition, the lithium secondary battery comprising the electrolyte according to one embodiment has excellent output characteristics resulting from reduced internal resistance of the battery, and exhibits excellent cycle characteristics and stability even when charged under high temperature and high voltage.
Resumen de: US20260246035A1
A holding structure for a laminated body includes the laminated body in which a plurality of electrodes are laminated, and a holder that holds the laminated body to fix the plurality of electrodes to one another. The holder includes an upper cover that covers an upper surface of the laminated body and covers left and right side-surfaces of the laminated body, and a lower cover that covers a lower surface of the laminated body and covers the left and right side-surfaces of the laminated body. The upper cover and the lower cover are joined together on the left and right side-surfaces of the laminated body.
Resumen de: US20260246031A1
A power storage device is provided with an electrode body and an outer package in which the electrode body is sealed. The outer package includes an outer package film which enfolds the electrode body in such a manner that an opening is formed, and a cover member which is disposed at the position of the opening. The cover member has a first surface that faces the electrode body, a second surface that is on the reverse side of the first surface, and a projection that protrudes from the second surface.
Resumen de: US20260246034A1
Embodiments provide a laminate including a flame retardant layer and a fiber-reinforced resin layer; a case for a non-aqueous electrolyte secondary battery; and a non-aqueous electrolyte secondary battery including the same. The flame retardant layer contains 20% to 80% by mass of a thermoplastic resin based on the total mass of the flame retardant layer, 20% to 80% by mass of at least one flame retardant, such as a phosphorus-based, a bromine-based, and an inorganic hydrate-based flame retardant, based on the total mass of the flame retardant layer, and 0% to 20% by mass of reinforcing fibers based on the total mass of the flame retardant layer. The fiber-reinforced resin layer contains 30% to 90% by mass of a thermoplastic resin based on the total mass of the fiber-reinforced resin layer, and 10% to 70% by mass of reinforcing fibers based on the total mass of the fiber-reinforced resin layer.
Resumen de: US20260246078A1
0000 An end cover assembly, a battery, and an electric device are provided. The end cover assembly is applied to a battery and includes an end cover, a breather valve, and a protective patch. The end cover has a first side facing inside of the battery and a second side opposite the first side and includes a first channel in communication with the first side and the second side. The breather valve includes a gas-permeable membrane in gas communication with the first channel. The gas-permeable membrane includes a gas-permeable portion opened towards the second side of the end cover. The protective patch is provided on the second side of the end cover and covers the gas-permeable portion. The battery includes the end cover assembly. The electric device includes the battery.
Resumen de: US20260246181A1
A female terminal, a socket, a battery pack, a power tool and a power tool system are provided to improve a problem of limited discharge capacity between a conventional battery pack and a power tool. The female terminal is used for an electrical connection with a male terminal, and the female terminal includes: a first electrical connector and a second electrical connector. The first electrical connector is provided with a first resilient opening to be electrically connected and inserted into the male terminal. The second electrical connector is arranged inside the first electrical connector, and is provided with a second resilient opening to be electrically connected and inserted into the male terminal. Wherein, during an electrical connection, the male terminal sequentially enters the first resilient opening and the second resilient opening in sequence, and is electrically connected to the first electrical connector and the second electrical connector.
Resumen de: US20260245971A1
An energy storage cell includes a cylindrical housing closed in a liquid-tight manner and having a first housing end face, a second housing end face, and a housing shell. The energy storage cell further includes an electrode-separator assembly in the form of a cylindrical winding formed of electrode ribbons and at least one ribbon-shaped separator. The winding has a first terminal winding end face, a second terminal winding end face, and a winding shell. The electrode-separator assembly is arranged axially in the housing so that the first winding end face points in a direction of the first housing end face and the second winding end face points in a direction of the second housing end face. The housing shell of the energy storage cell is formed of at least one spirally wound foil and comprises at least two layers of the foil.
Resumen de: WO2026171225A1
The present application relates to the technical field of batteries. Disclosed are an electrode plate and a battery. The electrode plate comprises: an electrode plate body, wherein in the direction of thickness of the electrode plate body, a corner of the electrode plate body is cut to form a recess, and a corner line is formed at the corner of the electrode plate body, the corner line comprising at least one rounded corner structure, and the radius of the rounded corner structure ranging from 0.3 mm to 10 mm. In the present application, the corner of the electrode plate body is cut, so as to remove a right angle at the corner of the electrode plate body, and form the corner line having the rounded corner structure at the corner of the electrode plate body, such that the corner line is relatively gentle and smooth, thereby avoiding puncturing of a separator, avoiding short circuits, and ensuring the safety performance of the battery during stacking and hot pressing.
Resumen de: WO2026170834A1
The present application discloses a secondary battery and an electric device. The secondary battery comprises an electrode assembly and a pouch for accommodating the electrode assembly. The pouch comprises a pouch body and side seal flaps, and the electrode assembly is disposed in the pouch body. The pouch body comprises side walls, and in the extension direction of the side seal flaps, each side seal flap is connected to the corresponding side wall and fixed to the side of the side wall away from the accommodating cavity. Each side seal flap comprises a sealed region and an unsealed region. Each unsealed region is in communication with the accommodating cavity. When the electrode assembly expands, at least a part of each side seal flap can be expanded outward, thereby improving the stress distribution at a first end of each side seal flap and improving the capability of the pouch to withstand expansion of the electrode assembly. Each sealed region is connected to the corresponding unsealed region, and the sealed regions can also reduce the possibility of excessive outward expansion of the side seal flaps while sealing the accommodating cavity. In this way, after the expansion of the electrode assembly, the integrity of the pouch is maintained, thereby facilitating improvement in the safety performance of the secondary battery.
Resumen de: WO2026171223A1
The present application relates to the technical field of batteries. Disclosed are a battery and a battery pack. The battery comprises: an electrode assembly, wherein the electrode assembly is provided with a negative tab, a welding region adapted to weld to a busbar is provided on the negative tab, embossments arranged in rows are provided at intervals on the welding region, and a projection area S 1 of a single embossment in the direction of thickness of the negative tab satisfies 0.1 mm 2≤S 1≤4 mm 2. In the present application, the embossments are arranged in rows in the welding region of the negative tab, and the projection area of the single embossment in the direction of thickness of the negative tab is defined, such that laser light can be scattered by means of textures of the embossments, and an incident angle of the laser light is changed, thereby making part of the light deviate from a direct reflection path, reducing the direct reflection of the light, reducing the light reflection effect, improving the welding quality and ensuring the production quality of the battery.
Resumen de: US20260245861A1
0000 The electrode plate laminating apparatus includes: a first laminating roller assembly, including a first laminating roller and a second laminating roller. The first laminating roller and the second laminating roller face each other. The first laminating roller and the second laminating roller are configured to sequentially stack and laminate a first separator, a first electrode plate, and a second separator; and a side separator laminating assembly, configured to laminate a portion of the first separator extending beyond a side edge of the first electrode plate with a portion of the second separator extending beyond the side edge of the first electrode plate. Embodiments solve the problem of overlapping of a first electrode plate and a second electrode plate caused by separator folding during a winding process of a first separator, the first electrode plate, a second separator, and the second electrode plate for preparing a bare cell.
Resumen de: US20260242171A1
A winding mechanism and a winding device. The winding mechanism includes at least two sets of unwinding mechanisms and a first clamping assembly. The unwinding mechanism is configured to unwind and convey an electrode sheet and is capable of independently conveying the electrode sheet, and the unwinding mechanism includes an electrode sheet starting end and an electrode sheet free end. The first clamping assembly is configured to enable the electrode sheet free end of any of the unwinding mechanisms to be conveyed to a next process. Each set of unwinding mechanism of the winding mechanism is capable of operating independently, and the electrode sheet free end of each unwinding mechanism is conveyed to a next process through the first clamping assembly.
Resumen de: US20260246020A1
0000 A battery pack according to an embodiment of the present disclosure comprises: a battery module including a battery cell stack in which a plurality of battery cells are stacked and a module frame in which the battery cell stack is housed; and a pack frame in which the battery module is housed, wherein a cooling path configured to receive a coolant is at a bottom part of the pack frame, and an opening at the bottom part of the pack frame is configured to allow a downside part of the module frame and the coolant to directly contact each other, and at least one protrusion part is on an outer surface of the downside part of the module frame.
Resumen de: US20260245908A1
Provided is a composite binder for an electrode sheet, and a preparation method for and a use of the composite binder. The composite binder for an electrode sheet uses both a fluorine-containing polymer and an aromatic polyamide. Compared with using a fluorine-containing polymer alone, the strength of the composite binder of the present application is enhanced, the peeling strength of the battery electrode sheet is higher, and the electrolyte infiltration effect is better. Compared with using aromatic polyamide alone, the moisture content of the battery electrode sheet is lower, the hygroscopicity is reduced, and the internal resistance of a battery cell is also lower. That is, the composite binder for an electrode sheet of the present application can have both the advantages of good electrochemical performance of the fluorine-containing polymer and high bonding strength of the aromatic polyamide, and the use cost of the binder is also reduced.
Resumen de: US20260246039A1
A gasket of a cylindrical battery comprises: a cylindrical portion having an annular groove provided on the outer circumferential surface thereof; and an annular portion extending radially inward from one end on one side in an axial direction of the cylindrical portion. If a sealing body of the cylindrical battery is attached to the gasket so as to abut the annular portion, in the axial direction of the cylindrical portion, the annular groove is provided in a range of the cylindrical portion extending from a first position, which corresponds to a surface on the other side of a peripheral portion of the sealing body, to a second position which is 1 mm apart on the other side in the axial direction.
Resumen de: US20260242244A1
Described herein is a process for making a particulate (oxy)hydroxide of TM where TM is a combination of nickel and at least one metal selected from Co and Mn. The process includes the steps of: (a) precipitating a hydroxide of TM by combining one or more aqueous solution(s) (α) containing sulfates of Ni and of at least one transition metal selected from Co and Mn, and an aqueous solution (β) containing sodium hydroxide in a stirred tank reactor,(b) separating the precipitated hydroxide of TM from a continuous phase by way of a filtration step,followed by washing the resultant filter cake with an aqueous medium, thereby obtaining a washed filter cake and a filtrate that contains sodium sulfate,(c) removing water from the filtrate, thereby obtaining a concentrated filtrate and water, and(d) at least partially recycling the water from step (d) and further using it.
Resumen de: US20260246117A1
A voltage detection device (20A) includes a plurality of voltage detection terminals (210) and a plurality of voltage detection lines (220) electrically connected to the plurality of voltage detection terminals (210). The voltage detection lines (220) electrically connected to adjacent voltage detection terminals (210) are drawn through a region between the adjacent voltage detection terminals (210).
Resumen de: US20260246019A1
0000 A coolant tank for a battery module is disclosed, wherein the coolant tank is configured to accommodate coolant in an inner volume delimited by a number of wall segments of the coolant tank, wherein one wall segment of the number of wall segments forms a number of recessed formations each comprising an outer surface delimiting the inner volume of the coolant tank and an inner surface delimiting a cell compartment for accommodating a battery cell. The present disclosure further relates to a battery module, a battery pack, and a vehicle.
Resumen de: US20260245988A1
0000 The present disclosure relates to a ceramic-carbon composite including a ceramic shell surrounding a hollow portion; and a carbon coating layer surrounding the ceramic shell, wherein the hollow portion is in a vacuum state, an electrode including the ceramic-carbon composite, and a secondary battery including the electrode. The ceramic-carbon composite of the present disclosure has excellent thermal barrier effect and electrical conductivity, and thus, when used in the electrode, non-ideal heat transfer between an electrode active material and an electrode current collector is blocked to prevent a thermal runaway phenomenon, to have an effect that can significantly improve safety of the secondary battery.
Resumen de: US20260242243A1
0000 The present invention relates to a precursor of a positive electrode active material for a lithium secondary battery, the precursor including a metal composite compound containing at least one metal element selected from the group consisting of Ni, Co, and Mn, and satisfying all of the following requirements (1) to (3): (1) An average particle strength is 10 MPa or more and less than 45 MPa; (2) An average particle diameter D<50 >is more than 4 μm and equal to or less than 20 μm; (3) Both a moisture content and a sulfate radical content are 1% by mass or less with respect to the total mass of the precursor.
Resumen de: US20260245983A1
0000 Disclosed are a sheet for a rechargeable lithium battery and a rechargeable lithium battery including the same. A sheet for a rechargeable lithium battery includes a tape including an adhesive surface on a first surface and a non-adhesive surface or an adhesive surface on a second surface; and a coating layer located on the second surface of the tape and including a metal organic framework.
Resumen de: US20260246094A1
0000 A battery pack includes a first intermediate connecting member that electrically connects: a harness which is electrically connected to a battery core pack; and a first connection terminal. The first intermediate connecting member includes: a harness connection portion to which an end of the harness is connected; and a terminal connection portion to which the first connection terminal is connected. A body portion of the first intermediate connecting member includes an offset portion. The offset portion connects: a first extension end extending from the harness connection portion; to a second extension end extending from the terminal connection portion.
Nº publicación: US20260246291A1 20/08/2026
Solicitante:
EVE POWER CO LTD [CN]
EVE POWER CO., LTD.
Resumen de: US20260246291A1
A current detection method, a loss capacity prediction method, and a battery screening method for battery self-discharge are provided. In the current detection method for battery self-discharge, a battery is charged with a tiny current by a regulated power supply under a preset condition. During a charging process of the battery by using the regulated power supply, a charging current provided by the regulated power supply is adjusted until a voltage of the battery remains stable. When the voltage of the battery remains stable, the charging current is determined as a self-discharge current of the battery under the preset condition.
BOPI
Sede Electrónica
