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1255
resultados
Última actualización
10/02/2026 [07:21:00]
Resultados 750 a 775 de 1255
Resumen de: US20260031396A1
A lithium-ion battery electrolyte, a lithium-ion battery, and an electrochemical apparatus are provided. The electrolyte includes a non-aqueous solvent, a lithium salt, and an additive including a first additive and a second additive. The first additive is selected from compounds represented by formula (I), and the second additive is lithium bis(oxyalyl)difluorophosphate, andwhere R1, R2, R3, and R4 are each independently a substituent having 1 to 3 carbon atoms, 0 to 4 unsaturations, and 0 to 3 heteroatoms, the heteroatoms are selected from at least one of nitrogen, phosphorus, or sulfur, and n is 0 to 2.
Resumen de: US20260031398A1
A sodium-ion battery electrolyte is disclosed, including a sodium salt, a non-aqueous organic solvent and an additive. The additive includes fluoroethylene carbonate, 1,3-propane sultone and 1,3-propene sultone, the sodium salt includes a primary sodium salt and sodium difluorophosphate. The sodium-ion battery electrolyte satisfies the following conditions: 0.3≤(a+b+c)*100/d≤7, and 1≤a≤5, 0.5≤b≤2, 1≤c≤3, 100≤d≤1000, where a represents a mass percentage of fluoroethylene carbonate in the sodium-ion battery electrolyte, in %; b represents a mass percentage of 1,3-propane sultone in the sodium-ion battery electrolyte, in %; c represents a mass percentage of 1,3-propene sultone in the sodium-ion battery electrolyte, in %; d represents a mass content of sodium difluorophosphate in the sodium-ion battery electrolyte, in ppm. Also disclosed is a sodium-ion battery including the sodium-ion battery electrolyte described above. The electrolyte can effectively improve high-temperature performance, reduce impedance, and mitigate adverse effects of the passivation film on the low-temperature performance and rate capability.
Resumen de: WO2026021416A1
The present application provides a self-moving device and a self-moving device system. The self-moving device comprises a device body, a driving assembly, and a first electrode assembly. The driving assembly comprises a first driving member and a second driving member; the first driving member and the second driving member are respectively arranged on two opposite sides of the device body; the first driving member and the device body define a first space; and the second driving member and the device body define a second space. The first electrode assembly comprises a first electrode member and a second electrode member; the first electrode member is disposed on the device body and exposed in the first space; and the second electrode member is disposed on the device body and exposed in the second space.
Resumen de: WO2026021256A1
Provided are an inter-chip communication circuit and method, a communication interval time determination circuit and method, and a chip. The inter-chip communication circuit may comprise: a receiving circuit, used for receiving data frames; a memory, used for storing the received data frames; a counter circuit, used for determining a frame reception duration for receiving a data frame; a decoder circuit, used for obtaining a negative feedback adjustment value on the basis of the amount of data to be transmitted, which is stored in the memory; an adder circuit, used for determining an interval time on the basis of the frame reception duration and the negative feedback adjustment value; and a transmission circuit, used for transmitting the data frames by using the determined interval time as a transmission interval between the data frames.
Resumen de: WO2026021287A1
Provided in the present application are a separator, and a preparation method therefor and the use thereof. The separator comprises a base membrane and a coating layer arranged on the surface of at least one side of the base membrane, wherein the coating layer comprises a three-dimensional skeleton formed by a layered bimetal hydroxide, which overlaps each other, and polymer microspheres disorderly distributed in the three-dimensional skeleton. Under the combined action of the three-dimensional skeleton and the polymer microspheres, the present application can both improve the interface adhesion between the separator and an electrode sheet, and enable the separator to have good air permeability and excellent electrolyte wettability and can improve the battery capacity and cycle stability.
Resumen de: WO2026021444A1
A three-phase composite sodium-storage material, and a preparation method therefor and the use thereof. The three-phase composite sodium-storage material is selected from any one of the structures represented by the following general formula: (FeS)x/(V3S4)y/C, where 0.2≤x≤5 and 0.2≤y≤5.
Resumen de: WO2026020310A1
A battery cell (100), a battery device (1100), and an electric device (1000). The battery cell (100) comprises a casing (200) and an electrode assembly (101); the casing (200) is provided with an electrode lead-out portion (2011); the electrode assembly (101) is at least partially accommodated in the casing (200), and the electrode assembly (101) comprises a first electrode sheet (1) and an insulating member (40); the first electrode sheet (1) comprises a conductive member (30), a current collector (10) and an active material layer (20); the current collector (10) comprises an insulating substrate (11) and a metal layer (12); the conductive member (30) is connected to the electrode lead-out portion (2011) and the metal layer (12); the insulating substrate (11), the metal layer (12) and the active material layer (20) are stacked in the thickness direction of the current collector (10); at least part of the metal layer (12) is located between the insulating substrate (11) and the active material layer (20); the metal layer (12) comprises a main body portion (121) and at least one protruding portion (122); the protruding portion (122) extends outward from the end of the main body portion (121) in a first direction; the first direction is perpendicular to the thickness direction of the current collector (10); at least part of the main body portion (121) is covered with the active material layer (20), and at least part of the protruding portion (122) is not covered with the active
Resumen de: WO2026020313A1
A battery cell (100), a battery device (1100) and an electric device. The battery cell (100) comprises a casing (200) and an electrode assembly (101), wherein the casing (200) is provided with electrode lead-out portions (2011); the electrode assembly (101) is at least partially accommodated in the casing (200), the electrode assembly (101) comprises first electrode sheets (1), and each first electrode sheet (1) comprises electrically conductive members (30), a current collector (10) and an active material layer (20); the electrically conductive members (30) are connected to the electrode lead-out portions (2011); the current collector (10) comprises an insulating substrate (11) and a metal layer (12), and the insulating substrate (11), the metal layer (12) and the active material layer (20) are stacked in the direction of thickness of the current collector (10); the metal layer (12) comprises a main body portion (121) and at least one protruding portion (122), the protruding portions (122) extend outward from an end portion of the main body portion (121) in a first direction, and each protruding portion (122) is connected to the electrically conductive members (30); each protruding portion (122) comprises a first protruding sub-portion (1221) connected to the main body portion (121); and in a second direction, the sum of the dimensions of first protruding sub-portions (1221) of all the protruding portions (122) is 0.5 times or more the dimension of the main body portion (121
Resumen de: US20260031394A1
The present invention addresses the problem of providing: an electrolyte that can be used to produce a power storage device and has an excellent balance between solubility in organic solvents (non-aqueous solvents), charge/discharge efficiency, −10° C. resistance value, cycle characteristics (volume change rate, capacity retention rate, resistance change rate), and high-temperature characteristics; a reinforcing agent; an electrolyte solution; a power storage device produced using the same; and a method for producing a lithium boron fluoride complex compound and a lithium complex compound for an electrolyte or a reinforcing agent. This electrolyte for a power storage device contains a lithium boron fluoride complex compound having a specific substituent.
Resumen de: US20260031322A1
The present disclosure relates to a lithium-ion battery component and methods for manufacturing the lithium-ion battery component. The battery component, in some examples, includes a current collector, a porous deposit of first active material and first binder on the current collector, and a solvent-free electrode layer of second active material and second binder laminated with the porous deposit to at least partially occupy the pores of the porous deposit.
Resumen de: US20260031319A1
The electrode for a secondary battery includes an electrode current collector and an electrode mixture layer formed on at least one surface of the electrode current collector so that a portion of the electrode current collector is exposed to form an uncoated portion, wherein a retention rate of tensile strength of the uncoated portion, according to Equation 1 below, is 0.75 or greater,RTS=TSNC/TSMLEquation1where RTS is a retention rate of tensile strength of the uncoated portion, TSNC is the tensile strength of the uncoated portion in a region excluding region A, a portion of the uncoated portion set in the direction of the electrode mixture layer from the end of the uncoated portion, and TSML is the tensile strength of the electrode current collector having the electrode mixture layer formed on at least one surface thereof.
Resumen de: US20260031397A1
An electrochemical apparatus includes a positive electrode, a negative electrode, and an electrolyte, where the positive electrode includes a positive electrode active material, the positive electrode active material contains a manganese element and a cobalt element, and based on a total mass of the positive electrode active material, a mass percentage of the manganese element is B %; the electrolyte includes a sulfonyl imide lithium salt, and based on a total mass of the electrolyte, a mass percentage of the sulfonyl imide lithium salt is C %; where 0.1≤C≤15 and 0.02≤C/10B≤30.
Resumen de: US20260031384A1
An electrode assembly has a structure in which a first electrode, a second electrode, and a separator interposed therebetween are wound. An outermost coated portion is the coated portion of the first electrode. A winding end of the separator extends further from the winding end of the coated portion of the first electrode. A fixing member is attached to the winding end of the separator along the axial direction from a point spaced apart from the axial end of the separator. When the winding end corner of the separator is folded as much as possible with the axial end of the fixing member acting as a folding bias point so that its outer surface faces the outer circumference, the winding end corner of the coated portion of the first electrode is not exposed to the outside. A cylindrical battery may include the electrode assembly. A battery pack may include the cylindrical battery, and vehicle may include the battery pack.
Resumen de: WO2026021061A1
The present application relates to the technical field of batteries. Disclosed are a sodium metal battery and a preparation method therefor, and an electric device. The sodium metal battery comprises a gel electrolyte, wherein the gel electrolyte comprises a solvent, a sodium salt and a polyacrylate, with the solvent comprising an ether compound. In the sodium metal battery provided in the present application, a gel electrolyte combining the ether compound and the polyacrylate is used for replacing a traditional liquid electrolyte, so as to optimize the high-temperature storage performance of a battery cell. By means of selecting an ether compound, which does not easily react with sodium, and combining same with the polyacrylate, a gel electrolyte suitable for a sodium metal battery is obtained, thereby significantly reducing the chemical reaction between sodium and the electrolyte, and further improving the high-temperature storage performance of the sodium metal battery.
Resumen de: WO2026021234A1
The present disclosure relates to a battery pack, a battery apparatus, and an electrical device. The battery pack comprises a plurality of batteries arranged in sequence in a first direction. Each battery comprises a housing, a cell, and two pole assemblies; the cell is located in the housing of the battery; each pole assembly is used for being connected to the cell; in a second direction, the two pole assemblies are arranged on two sides of the cell, the second direction intersecting the first direction; the two pole assemblies extend away from each other and separately extend out of the housing; and the pole assemblies of the batteries located on a same side in the second direction are sequentially connected. In the battery pack of the present disclosure, the charging and discharging of the batteries are realized by means of two pole assemblies arranged on two sides, and the pole assemblies located on the two sides can shorten a conduction path of current and reduce a passing current, thereby reducing heat generated by the batteries and improving the charging and discharging capability of the batteries.
Resumen de: WO2026021228A1
The present application relates to the technical field of batteries, and discloses a battery electrode sheet deformation and damage testing method and apparatus. The battery electrode sheet deformation and damage testing method comprises: establishing a battery finite element model under a compression working condition, and layering an electrode assembly along the thickness direction on the basis of the battery finite element model, so as to form a plurality of unit electrode assemblies; performing composite material modeling on the unit electrode assemblies, so as to obtain a composite material model; acquiring stress-strain curve information of component materials in the unit electrode assemblies in a plurality of directions; and on the basis of the stress-strain curve information of the component materials in the unit electrode assemblies in the plurality of directions, the composite material model, and the battery finite element model, acquiring deformation contour maps of electrode sheets at different positions, so as to characterize deformation and damage of the electrode sheets by means of the deformation contour maps. The battery finite element model under the compression working condition and the composite material model are established to simulate a battery compression condition, and the deformation contour maps of the battery electrode sheets at different positions are calculated and outputted to characterize the deformation and damage conditions of the battery ele
Resumen de: WO2026020314A1
The present application relates to a battery cell (7), a battery apparatus and an electric apparatus (1). The battery cell (7) comprises an electrode assembly (10) and an electrolyte. The electrode assembly (10) comprises a cathode sheet and an anode sheet, wherein the cathode sheet comprises a cathode current collector and a cathode film layer, which is arranged on at least one surface of the cathode current collector and contains a cathode active material, the cathode active material comprises a lithium-containing phosphate of an olivine structure, and the single-sided coating weight of the cathode film layer ranges from 200 mg/1540.25 mm2 to 370 mg/1540.25 mm2; and the anode sheet comprises an anode current collector and an anode film layer, which is arranged on at least one surface of the anode current collector and contains an anode active material, and the anode active material comprises a carbon-based material. The conductivity of the electrolyte at room temperature ranges from 13 mS/cm to 20 mS/cm. In an external environment at 25°C, the battery cell (7) has a discharge plateau voltage V1 during a constant-current discharge process from a 100% state of charge to 2.0 V at a 0.33 C-rate, wherein V1 ranges from 3.19 V to 3.235 V. The fast-charge performance, energy density and cycle performance of the battery cell (7) can be improved.
Resumen de: WO2026020315A1
A battery cell (100), a battery device (1100), and an electrical device. The battery cell (100) comprises a housing (200) and an electrode assembly (101). The housing (200) is provided with an electrode lead-out portion (2011). The electrode assembly (101) is at least partially accommodated in the housing (200). The electrode assembly (101) comprises a first electrode plate (1). The first electrode plate (1) comprises a conductive member (30), a current collector (10), and an active material layer (20). The conductive member (30) is connected to the electrode lead-out portion (2011). The current collector (10) comprises an insulating substrate (11) and a metal layer (12). The insulating substrate (11), the metal layer (12), and the active material layer (20) are stacked in a thickness direction of the current collector (10). At least part of the metal layer (12) is located between the insulating substrate (11) and the active material layer (20). The metal layer (12) comprises a conductive portion (121) and an extension portion (122) extending outward from an end portion of the conductive portion (121) in a first direction, the first direction being perpendicular to the thickness direction of the current collector (10). The conductive portion (121) is covered with the active material layer (20), while the extension portion (122) is not covered with the active material layer (20). The conductive member (30) is welded to a surface of the extension portion (122) facing away from
Resumen de: US20260031385A1
A secondary battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The positive electrode plate includes a positive electrode current collector, and a positive electrode active material layer and an inorganic coating are provided on a surface of the positive electrode current collector. The electrolyte includes an additive, and the additive includes at least one of lithium difluorophosphate, succinonitrile, adiponitrile, 1,3,6-hexanetricarbonitrile, or 1,2,3-tris(2-oxyethoxy)propane. A mass per unit area of the inorganic coating is A g/m2, and based on a mass of the electrolyte, a mass percentage of the additive is B %, satisfying 0.01≤B/A≤5. Selection of the foregoing additives and control of B/A within the foregoing range are conducive to improving high-temperature safety performance of the secondary battery at high voltage.
Resumen de: US20260031393A1
In one aspect of the disclosure, an electrode assembly is presented. The electrode assembly includes a positive electrode, a negative electrode, a separator positioned between the positive electrode and the negative electrode, and an electrolyte. The electrolyte includes lithium hexafluorophosphate, lithium bis(fluorosulfonyl)imide, fluoroethylene carbonate, vinylene carbonate, and an additive dissolved in a solvent of ethylene carbonate and ethyl methyl carbonate. This electrolyte saturates the negative electrode, the positive electrode, and the separator. The additive is (S)-N-(1-(2-((4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)methyl)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)-3-methyl-2-(2-oxo-1,3-diazaspiro4.5decan-1-yl)butanamide, contributing to improved performance and stability of the electrode assembly.
Resumen de: US20260031400A1
The present invention addresses the problem of providing: an electrolyte that can be used to produce a power storage device and has an excellent balance between solubility in organic solvents (non-aqueous solvents), charge/discharge efficiency, −10° C. resistance value, cycle characteristics (volume change rate, capacity retention rate, resistance change rate), and high-temperature characteristics; a reinforcing agent; an electrolyte solution; a power storage device produced using the same; and a method for producing a lithium boron fluoride complex compound and a lithium complex compound for an electrolyte or a reinforcing agent. This electrolyte for a power storage device contains a lithium boron fluoride complex compound having a specific substituent.
Resumen de: US20260031383A1
An apparatus for manufacturing secondary battery, which cuts an electrode tab of the secondary battery, a method for manufacturing a secondary battery using the same, and a secondary battery manufactured using the same are described.The secondary battery includes: an electrode assembly in which electrodes and separators are alternately stacked; and an electrode tab attached to each of the electrodes. The apparatus includes: a cutter disposed at one side of the electrode tab to move toward the electrode tab so as to cut a portion to be cut of the electrode tab; and a fixing die provided to cross the cutter at the other side of the electrode tab. The cutter includes: a pressing surface configured to press the electrode tab; and an inclined surface provided at a position corresponding to the portion to be cut and inclinedly extending away from the electrode tab from an end of the pressing surface.
Resumen de: WO2026023492A1
Provided is a solid state battery comprising a positive electrode layer, a negative electrode layer, a solid electrolyte layer, a positive terminal electrode electrically connected to the positive electrode layer, and a negative terminal electrode electrically connected to the negative electrode layer. At least each of the positive electrode layer and the positive terminal electrode contains a carbon-based conductive material. The content of the carbon-based conductive material in the positive terminal electrode is greater than 30 vol% and less than 95 vol%.
Resumen de: WO2026024228A1
There is provided a device for extracting a Group (I) metal from a spent battery, the device comprising: an anode comprising material from the spent battery, wherein the material comprises the Group (I) metal; a cathode; a first electrolyte; a second electrolyte; and an ion-selective membrane, selectively permeable to ions of the Group (I) metal. There is also provided a method of extracting a Group (I) metal from a spent battery, the method comprising: contacting an anode with a first electrolyte, the anode comprising material from the spent battery, wherein the material comprises the Group (I) metal; contacting a cathode with a second electrolyte; and applying an electrical potential between the anode and the cathode to obtain the Group (I) metal at the cathode, wherein the first electrolyte and the second electrolyte are separated with an ion-selective membrane, selectively permeable to ions of the Group (I) metal.
Nº publicación: WO2026025094A1 29/01/2026
Solicitante:
GEORGIA TECH RES CORPORATION [US]
GEORGIA TECH RESEARCH CORPORATION
Resumen de: WO2026025094A1
An exemplary embodiment of the present disclosure provides a method for making an electrolyte, comprising: providing a solid polymer electrolyte (SPE); incorporating boron nitride with the SPE to form a composite polymer electrolyte (CPE), wherein the boron nitride is at least one of exfoliated hexagonal boron nitride (ex-BN) or fluorine-fimctionalized hexagonal boron nitride (BN-F).
BOPI
Sede Electrónica
