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1802
resultados
Última actualización
14/10/2025 [07:10:00]
Resultados 650 a 675 de 1802
Resumen de: WO2025201022A1
Disclosed in the present application are a secondary battery and an electronic device. The secondary battery comprises a packaging bag, an electrode assembly, a first tab, a first insulating adhesive tape and a second insulating adhesive tape, wherein the electrode assembly is accommodated in the packaging bag; the first tab is electrically connected to the electrode assembly and extends out of the packaging bag in a first direction; the electrode assembly is of a wound structure and comprises a first end face, a first side surface, a first arc-shaped face and a second side surface, wherein the first side surface, the first arc-shaped face and the second side surface are arranged around a periphery of the first end face; the first insulating adhesive tape comprises an adhesive tape body and a first extension, wherein the adhesive tape body is bonded to the first side surface, the first arc-shaped face and the second side surface, respectively, the first extension extends beyond a negative electrode plate of the electrode assembly in the first direction, and the first extension comprises a first section and a second section; and the second insulating adhesive tape is bonded to the first end surface, the first section and the second section, respectively. In this way, the present application can increase the thermal chamber test pass rate of the secondary battery.
Resumen de: WO2025207019A1
Embodiments herein disclose methods and systems for dynamically regulating the power output of a battery in a vehicle based on the battery limits, wherein power utilization is used, thereby facilitating enhanced performance and efficiency in high-power vehicle operations.
Resumen de: WO2025204690A1
According to the present invention, a method for producing a recycled positive electrode active material includes the following steps. (1) A step of mixing a positive electrode mix containing a positive electrode active material and a carbon-containing material with an activation treatment agent containing one or more alkali metal compounds to obtain a mixture; (2) a step of heating the mixture in a heating space having a high-temperature region and a low-temperature region having a temperature lower than that of the high-temperature region, and having a carbon dioxide concentration in the high-temperature region lower than the carbon dioxide concentration in the low-temperature region, to obtain a heated mixture; and (3) a step of recovering the heated positive electrode active material from the heated mixture.
Resumen de: WO2025200151A1
The present invention belongs to the field of sodium ion batteries. Disclosed is a preparation method for a sodium-based modified phenolic resin. The method comprises: a phenolic compound and an aldehyde compound undergoing a condensation reaction under the action of an alkaline catalyst to obtain an amino phenolic resin; carrying out a neutralization reaction by using 5-amino-1,2,3-benzenetricarboxylic acid and a sodium hydroxide solution; and adding an organic solvent, the amino phenolic resin, triethylamine and glycidaldehyde diethyl acetal to carry out an addition reaction, so as to obtain the sodium-based modified phenolic resin. Also provided in the present invention is a preparation method for a sodium-based modified phenolic resin hard carbon negative electrode, comprising: carbonizing the sodium-based modified phenolic resin in an inert atmosphere, grinding same and screening same to obtain an active substance; uniformly mixing the active substance, a conductive agent and a binder, coating a copper foil with same, drying same and rolling same to obtain a sodium ion battery negative electrode sheet. The methods effectively improve the capacity and the initial coulombic efficiency of the hard carbon negative electrode, thereby effectively improving the electrochemical properties of sodium ion batteries.
Resumen de: WO2025207996A1
Electrochemical cells (e.g., batteries) that operate across extreme temperatures (e.g., greater than or equal to 50 °C and/or less than or equal to 0 °C), and related methods, are generally described.
Resumen de: WO2025205075A1
Disclosed is an electrochemical capacitor (10) comprising a first electrode (2), a second electrode (3), and an electrolytic solution. The electrolytic solution contains a lactone compound and a buffer that exhibits a buffering action in an acidic region of pH 3.0-5.0.
Resumen de: WO2025206467A1
The present invention relates to a negative electrode for an all-solid-state battery and an all-solid-state battery including same. The negative electrode for an all-solid-state battery includes: a current collector; and a negative electrode coating layer formed on the current collector and including a binder, a metal, and a carbon-based material, wherein the negative electrode coating layer includes a first region positioned on the current collector and a second region continuously or discontinuously positioned along an edge of the current collector, and the binder is contained at a higher content in the second region than in the first region.
Resumen de: WO2025206581A1
The present invention relates to a sheet (100) for preventing thermal runaway of a battery, comprising a flame retardant composite sheet (110), wherein the flame retardant composite sheet (110) has an upper surface and a lower surface and includes a fiber reinforced core material and silica, and is manufactured by impregnating the fiber reinforced core material with an impregnation solution containing silica.
Resumen de: WO2025203225A1
The present invention makes it possible to efficiently recover valuable metal, including nickel, cobalt, or manganese, from a used secondary battery. A battery processing method according to the present invention is for processing a lithium ion battery or an all-solid battery that includes an electrode material that includes at least one of nickel, cobalt, and manganese. The battery processing method includes a deactivation step for deactivating the contents of the battery at 80°C or below, a separation step for adding water to the deactivated contents to extract the electrode material, and a magnetic separation step for using an electromagnet to recover the electrode material.
Resumen de: WO2025206148A1
The present invention provides: a polyether polymer capable of suppressing a side reaction with a sulfide-based solid electrolyte, and having high lithium ion conductivity; a polyether electrolyte for a lithium ion secondary battery using the polyether polymer; a composite solid electrolyte for a lithium ion secondary battery; and a lithium ion secondary battery. The present invention relates to a polyether polymer including 20 mol% or more of an X unit, which is a constituent unit derived from a specific alkylene oxide, in 100 mol% of constituent units.
Resumen de: WO2025204782A1
A battery 100 according to the present disclosure is a polar battery, and comprises a positive electrode 20, a negative electrode 30, and an electrolyte layer 40. The potential of the positive electrode 20 and the potential of the negative electrode 30 when the voltage of the battery is 0 V are more noble by 3.0 V or more on the basis of the equilibrium potential of Li/Li+. The negative electrode 30 includes a solid electrolyte, a first negative electrode active material, and a second negative electrode active material. The solid electrolyte contains lithium aluminum germanium phosphate. The first negative electrode active material contains at least one selected from the group consisting of Ti, Nb, and W, and the second negative electrode active material contains a material that is more noble than the first negative electrode active material.
Resumen de: WO2025203564A1
Provided is a method for manufacturing a sulfur mold, whereby it is possible to more reliably confirm that an inert gas-generating substance is suitably retained in the sulfur mold, and to more reliably and suitably manage the magnitude of the pressure in an anode space and a cathode space of a sodium-sulfur battery. The method for manufacturing a sulfur mold according to the present invention is for manufacturing a sulfur mold 1002 having a prescribed shape and obtained by impregnating a conductive material with sulfur which is an anode active material of a sodium-sulfur battery, the manufacturing method comprising: a step for arranging a conductive material together with an inert gas-generating substance 1012 in a mold cavity inside a mold, and then injecting molten sulfur into the mold cavity from an injector connected to the mold; and a step for imaging the sulfur mold 1002 after the injection of the molten sulfur into the mold cavity and detecting the inert gas-generating substance 1012 on the sulfur mold 1002 through image analysis.
Resumen de: WO2025204230A1
A battery pack (10) comprises: a battery module (100); a heat insulation sheet (400); and a protrusion (340) that at least partially locks the heat insulation sheet (400) in a state in which the heat insulation sheet (400) at least partially covers the battery module (100).
Resumen de: WO2025204229A1
A battery pack (10) is provided with: a battery module (100); a heat insulation sheet (400) at least partially freely disposed with respect to the battery module (100); and an upper plate (230) that restricts the movement of at least a portion of the heat insulation sheet (400).
Resumen de: WO2025203563A1
The present invention provides a sulfur molding production method which makes it possible to more reliably supply molten sulfur to an injector. The present invention provides a sulfur molding 1002 production method for producing a sulfur molding 1002 which has a prescribed shape and in which sulfur that is a positive electrode active material for a sodium-sulfur battery 1000 is impregnated in a conductive material 21, said production method comprising a step for, after disposing a conductive material 21 in a mold cavity 20 inside a mold 2, injecting molten sulfur 30 inside the mold cavity 20 from an injector 3 which is connected to the mold 2, wherein: the molten sulfur 30 flows through circulation piping 41 which has one end 41a and another end 41b that are connected to a melting furnace 40 that heats sulfur to generate the molten sulfur 30; and the injector 3 injects the molten sulfur 30 flowing through the circulation piping 41 into the mold cavity 20.
Resumen de: WO2025203120A1
A battery module assembly system is disclosed The battery module comprises a plurality of battery cells 302 configured with respective positive cell tab 502 and negative cell tab 504. A first bus bar 506 and a second bus bar 508 are coupled to the respective cell tabs via welding. The battery cells 302 welded to the busbars form a subsystem. Further the battery cells 302 welded bus bars are loaded in a battery cell holder. Further a connector bus bar 304 is welded to the pre-welded bus bars of the battery cells 302 loaded in the cell holder, ensuring uniform current distribution and structural stability. The battery module assembly system optimizes electrical efficiency, minimizes voltage drop, and enhances thermal dissipation. Additionally, the battery module assembly system allows for early-stage inspection and defect detection, ensuring reliability and rework ability.
Resumen de: WO2025200720A1
The present invention relates to the technical field of batteries, and disclosed are a standard terminal, a cover plate, and a secondary battery. The standard terminal comprises: a lower aluminum ring; a seal ring, arranged on the lower aluminum ring; a pole, arranged at the top of the seal ring, wherein the pole comprises an upper end portion and a lower end portion, the outer diameter of an axial surface of the lower end portion is greater than the outer diameter of an axial surface of the upper end portion, and the axial surface of the lower end portion has a conical structure that converges from top to bottom; an upper aluminum ring, arranged on the lower aluminum ring and used for fixing the pole; and an injection molded layer, covering the outer surfaces of the upper aluminum ring and the pole and used for isolating the upper aluminum ring and the pole. The cover plate uses the standard terminal. The secondary battery uses the cover plate. By providing the standard terminal, the production process of a battery cover plate is simplified, the production efficiency is improved, and the actual production costs are reduced.
Resumen de: WO2025200150A1
A sodium ion battery electrolyte capable of reducing solvated sodium ions and an application of the electrolyte, relating to the technical field of sodium ion batteries. A low-cost halogen organic compound solution is used as a cosolvent to dilute an electrolyte having a conventional concentration, so that special complex processes are reduced, the present invention is suitable for large-scale industrial production, and the product performance is relatively good; a non-solvating solvent insoluble in sodium salt is used as a cosolvent to dilute an electrolyte having a conventional concentration, so that the solvation effect of sodium ions can be reduced, the migration of free sodium ions during the charging and discharging of sodium ions is improved, the ionic conductivity of sodium ions can be improved, the discharge capacity of the battery is increased, and the cycle life of the battery is prolonged.
Resumen de: WO2025200149A1
A sulfonate-based additive-containing electrolyte for a sodium-ion battery, and the use thereof in the technical field of sodium-ion batteries. The sulfonate-containing metal organic film-forming additive can form a compact and uniform SEI film on the surface of an electrode, so as to stabilize interfaces of a positive electrode and a negative electrode. In addition, an electrostatic shielding layer is formed under the action of manganese ions, such that the generation of sodium dendritic crystals can be effectively inhibited.
Resumen de: WO2025204327A1
Provided is a cooling heat exchanger having a novel structure and being capable of improving cooling performance while improving connection strength and deformation rigidity of a first member and a second member. In this cooling heat exchanger 10, a cooling flow path 66 in which a cooling heat medium flows is formed inside the cooling heat exchanger, and a to-be-cooled object 78 superimposed on a cooling surface 16 of a surface of the cooling heat exchanger is cooled. The cooling flow path 66 is formed between the overlapping surfaces of the first member 12 and the second member 14 provided with the cooling surface 16. The first member 12 and the second member 14 are fixed to each other at a support column part 46 protruding from the second member 14 toward the first member 12. The heat exchanger includes a diversion forming surface 49 in which a portion positioned on the upstream side of the cooling flow path 66 on the outer peripheral surface of the support column part 46 diverts the heat medium flowing in the cooling flow path 66 to both sides of the support column part 46. A diversion agitation protrusion 56 protruding from the second member 14 toward the cooling flow path 66 is positioned on the downstream side of the support column part 46 in the flow path of the heat medium branched and flowing to both sides of the support column part 46.
Resumen de: WO2025201349A1
The present application provides a battery box, a battery and an electric device. The battery box comprises a box body, a partition plate and support members, wherein the box body comprises a bottom plate and a cavity located above the bottom plate; the partition plate is located in the cavity and spaced apart from the bottom plate in a first direction, so as to divide the cavity into an electrical cavity and an exhaust cavity; the electrical cavity is located on the side of the partition plate away from the bottom plate, and the electrical cavity is used for containing a battery cell; the exhaust cavity is located on the side of the partition plate facing the bottom plate, and the exhaust cavity is used for collecting emissions from the battery cell; and the support members are provided in the exhaust cavity, and the support members are supported on the bottom plate and/or the partition plate in the first direction to improve the deformation resistance of the partition plate, so as to mitigate the problem that when thermal runaway occurs in the battery, the partition plate is bent and deformed under pressure, which leads to a reduction in the volume of the exhaust cavity, resulting in that some of high-temperature ejecta cannot enter the exhaust cavity, and other battery cells are damaged. The reliability of the battery box is improved.
Resumen de: WO2025204009A1
The present invention provides a carbon nanotube assembly which has excellent conductivity when used in the form of a carbon nanotube dispersion liquid, and applications thereof. The present invention provides a carbon nanotube assembly which satisfies the following conditions (1) and (2), and applications thereof. (1) The ratio of the pore volume to the BET specific surface area is 0.0100 μm to 0.0200 μm. (2) The ratio of the volume resistivity under the pressure of 20 kN to the volume resistivity under the pressure of 1 kN is 0.18 to 0.30 inclusive.
Resumen de: WO2025201144A1
A control circuit, comprising a first switch control unit (21), a second switch control unit (22), and an inductive device unit (23) arranged between the first switch control unit and the second switch control unit. A switching transistor of the first switch control unit and a switching transistor of the second switch control unit are alternately turned on and off according to a predetermined timing sequence, so as to perform self-heating of a battery (10) via charging and discharging of the inductive device unit. The control circuit enables self-heating of the battery via charging and discharging of the inductive device unit, thereby preventing the charging and discharging power of the battery from being affected in low-temperature environments. In addition, the invention further relates to a control method, a vehicle controller, and an electric vehicle.
Resumen de: WO2025199689A1
A secondary battery and an electronic device, belonging to the technical field of batteries. The secondary battery comprises a positive electrode sheet and an electrolyte, the electrolyte comprising a carboxylate compound and lithium difluorophosphate. The carboxylate compound comprises at least one of compounds of which the molecular formula is R1COOR2, where R1 and R2 are each independently selected from an alkyl group or halogenated alkyl group of C1 to C6. Using the electrolyte as a reference, the mass content of the carboxylate compound is a%, and the mass content of lithium difluorophosphate is b%, 2≤b≤8.8 and 6≤a/b≤28. The coordination between lithium difluorophosphate and the carboxylate compound improves the cycle performance and high-temperature storage performance of secondary batteries.
Nº publicación: WO2025200173A1 02/10/2025
Solicitante:
DYNESS DIGITAL ENERGY TECH CO LTD [CN]
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Resumen de: WO2025200173A1
The present application discloses a battery thermal runaway hidden danger recognizing method and device, a terminal, and a storage medium. A rigid mechanism is mounted on the side of a battery in an expansion direction, and a pressure sensor is mounted on the side of the rigid mechanism not in contact with the battery. The method comprises: acquiring a pressure value of the pressure sensor, establishing an initial pressure reference, and recording the current pressure value of the pressure sensor as an initial pressure value FP0; on the basis of the range of the pressure sensor and the initial pressure value FP0, determining whether the pressure sensor fails, and if yes, giving a pressure sensor failure alarm; and if not, acquiring a pressure value of the pressure sensor in real time on the basis of a measurement frequency f, and on the basis of the pressure value acquired in real time, recognizing whether a battery explosion-proof valve is turned on. The method, the device using the method, the terminal, and the storage medium improve the recognizing precision of battery thermal runaway hidden dangers.
BOPI
Sede Electrónica
