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BATTERY DEVICE, ENERGY STORAGE APPARATUS AND POWER SYSTEM

Resumen de: WO2026081906A1

A battery device (100), an energy storage apparatus and a power system. The battery device (100) comprises a connection housing (10), a cover plate assembly (20), a first housing (31), a second housing (32) and a battery cell (50), wherein the first housing (31) and the second housing (32) are oppositely arranged and spaced apart from each other; the connection housing (10), the first housing (31), the second housing (32) and the cover plate jointly enclose a storage space (40); at least one of the first housing (31) and the second housing (32) comprises a frame (33) and a covering member (34), wherein the frame (33) is in the shape of an endless ring, and the frame (33) is connected to a bottom plate (11), a first plate (12), a second plate (13) and the cover plate; the frame (33) encloses a mounting space (331), and the covering member (34) is arranged in the mounting space (331); the frame (33) is provided with a circumferentially continuous accommodating groove (332), the opening direction of the accommodating groove (332) faces the mounting space (331), and a peripheral edge of the covering member (34) extends into the accommodating groove (332) and is connected to the frame (33); and the battery cell (50) is accommodated in the accommodating space (40), and the covering member (34) elastically abuts against a large surface of the battery cell (50).

CHARGING AND DISCHARGING SYSTEM AND CHARGING AND DISCHARGING METHOD

Resumen de: US20260112903A1

0000 A charging and discharging system and a charging and discharging method are provided. The charging and discharging system includes a battery module detection circuit, a charging and discharging controller, and a microcontroller. The battery module detection circuit receives a detection signal of a battery module and generates a battery type determination signal and a deep discharge detection signal based on the detection signal. The microcontroller controls the charge and discharge controller to perform a charging operation or a discharging operation on the battery module. When the microcontroller determines that the battery module is a first battery type based on the battery type determination signal, the microcontroller controls the charge and discharge controller to perform a deep discharge protection function based on the deep discharge detection signal. When the microcontroller determines that the battery module is a second battery type based on the battery type determination signal, the microcontroller controls the charge and discharge controller to stop the deep discharge protection function.

BATTERY SYSTEM AND OPERATING METHOD THEREOF

Resumen de: US20260110741A1

0000 A battery system and a method of operating the battery system are discussed. The battery system can include a plurality of Battery Management Systems (BMSs) with a hierarchical structure. In an example, the battery system includes a plurality of slave BMSs, and a master BMS linked with the plurality of slave BMSs. During an operation of the battery system, the master BMS identifies a target for application of an externally inputted control program for battery management, and the master BMS transmits a control program corresponding to the target for application to the target for application.

BATTERY PACK

Resumen de: US20260112740A1

A battery pack includes a cylindrical secondary battery and a heat absorbing member, and an exterior body of the heat absorbing member accommodates a heat absorbing agent between a first inner resin layer L1a and a second inner resin layer. A flange portion of the exterior body has an inner resin continuous portion in which the first inner resin layer and the second inner resin layer are continuous over the entire circumference. In a sectional shape of the heat absorbing member, the inner resin continuous portion includes a first continuous portion located inward of a first metal layer and a second metal layer, and a second continuous portion, a third continuous portion, and a fourth continuous portion each having a portion exposed to outside of the exterior body. The heat absorbing member is arranged in an orientation in which the first continuous portion is closer to an end of the secondary battery than the second continuous portion, the third continuous portion, and the fourth continuous portion in an axial direction of the secondary battery.

BATTERY MODULE AND ELECTRIC DEVICE

Resumen de: WO2026081870A1

The present application discloses a battery module and an electric device. The battery module comprises battery cells and a circuit board. Each battery cell comprises a battery cell casing, an electrode assembly, and electrode terminals. The battery cell casing has a top wall, a side wall, a first sealing portion, and a second sealing portion. The first sealing portion is connected to the top wall; the first sealing portion comprises a first section; the first section bends toward the top wall and is arranged opposite to the top wall in a first direction; the first direction is a direction perpendicular to the top wall; and one end of each electrode terminal is connected to the electrode assembly, and the other end of the electrode terminal extends from the first section. The second sealing portion is connected to the side wall; and the second sealing portion bends toward the side wall and is arranged opposite to the side wall in a second direction. The second sealing portion is connected to the first sealing portion to form a first protrusion; in the first direction, the first protrusion protrudes out of the top wall; and the first protrusion and the first section define a first space. The circuit board is connected to the electrode terminals; a part of the circuit board is disposed in the first space; and the thickness direction of the circuit board is perpendicular to the first direction. In this way, the space utilization rate and the energy density are improved.

SECONDARY BATTERY, BATTERY PACK AND ELECTRIC DEVICE

Resumen de: WO2026082142A1

Disclosed in the present application are a secondary battery, a battery pack and an electric device. The secondary battery comprises a casing, an electrode assembly and a top cover assembly, wherein the casing has an accommodating cavity configured to accommodate the electrode assembly; the top cover assembly comprises a top cover plate and a lower insulating member, the top cover plate being connected to the casing and covering and sealing the accommodating cavity; the lower insulating member is connected between the top cover plate and the electrode assembly; the top cover plate is provided with a pressure relief member; the lower insulating member has a second recess, which is disposed on the side of the lower insulating member facing the electrode assembly and is in communication with the accommodating cavity; and the second recess has a second bottom wall, which is spaced apart from the pressure relief member, and the second bottom wall is configured to rupture when the internal pressure of the secondary battery reaches a threshold value, such that the internal pressure of the secondary battery directly acts on the pressure relief member. In the present application, the lower insulating member is provided with the second recess, the second bottom wall shields the top cover plate to reduce the exposed metal area of the top cover plate, and the second bottom wall ruptures to achieve normal pressure relief of the battery, thereby improving the safety of the secondary batter

CHARGING METHOD, CHARGING APPARATUS, AND ELECTRONIC DEVICE

Resumen de: US20260112914A1

Provided are a charging method, a charging apparatus, and an electronic device. The method includes: collecting a charging current and a battery voltage of the to-be-charged device in real time; according to the charging current and the battery voltage collected during a constant-current charging phase, increasing a charging voltage according to a preset step voltage and controlling an increasing speed of the charging voltage; according to the charging current and the battery voltage collected during a constant-voltage charging phase, decreasing the charging voltage according to the preset step voltage; and charging the to-be-charged device according to the charging voltage and the charging current. With this solution, high-efficiency charging is implemented through the reduction of an energy loss.

POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND BATTERY

Resumen de: WO2026081307A1

The present application provides a positive electrode material and a preparation method therefor, a positive electrode sheet, and a battery. The positive electrode material comprises a positive electrode active material, and the positive electrode active material comprises a ternary monocrystal material and lithium iron manganese phosphate. The lattice spacing of crystals of the ternary monocrystal material a1=b1, the lattice spacing a1 ranges from 2.7Å to 3.0Å, and a lattice spacing c1 ranges from 13.5Å to 15.0Å. The lattice spacing of crystals of lithium iron manganese phosphate a2=b2, the lattice spacing a2 ranges from 6.1Å to 6.4Å, and a lattice spacing c2 ranges from 4.6Å to 5.0Å.

EASY-TO-OPERATE SINGLE-SIDED ADHESIVE SUPER-SOFT HIGH-THERMAL-CONDUCTIVITY PAD AND PREPARATION METHOD THEREFOR

Resumen de: WO2026081477A1

The present invention relates to the technical field of thermally-conductive materials, and particularly relates to an easy-to-operate single-sided adhesive super-soft high-thermal-conductivity pad and a preparation method therefor. The pad comprises an ultrathin thermally-conductive film and a silicone-based thermally-conductive pad. Raw materials for preparing the ultrathin thermally-conductive film at least comprise, in parts by weight: 85-220 parts of a ceramic filler, 10-50 parts of vinyl silicone oil, 1-10 parts of a cross-linking agent, 0.5-5 parts of a modifier, 0.1-2 parts of an inhibitor, and 0.2-2 parts of a catalyst. By means of the design of a combination of the ultrathin thermally-conductive film and the thermally-conductive pad, the provided product has a good compressibility and resilience on the premise of ensuring a high thermal conductivity, also has a good operability, and meets actual use requirements.

Electrolyte Additive, Electrolyte for Lithium Secondary Battery Including the Same and Lithium Secondary Battery

Resumen de: US20260112697A1

0000 Provided are an electrolyte additive, an electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. Such electrolyte may achieve excellent high-temperature storage characteristics and high-temperature cycle characteristics by including an electrolyte additive including a compound represented by Formula 1 capable of effectively suppressing the deterioration of a positive electrode, and of being not easily decomposed on a negative electrode: 0000 in Formula 1, A is a nitrogen-containing heteroaryl group having 3 to 10 carbon atoms.

VEHICLE BATTERY PROTECTION DEVICE, AND METHOD FOR THERMAL MANAGEMENT OF SAME

Resumen de: US20260112882A1

0000 A vehicle battery protection device for preserving the charge of the vehicle battery is electrically connectable between a vehicle battery and a vehicle electrical system. The device includes a solid-state switch commandable between an on state and an off state. A thermal safety algorithm executable by the device may include a switch derating process, a thermal analysis calibration, a vehicle profile function, and a data reconciliation function. The device employs hardware and software solutions to reduce the risk of thermal runaways and component failures in the device, while maximizing its useful operating envelope. The software solutions may include predicting future thermal loads for the device based on vehicle usage patterns specific to the vehicle within which the device is installed. Those predictions may be used to generate risk datasets which influence whether and to what extent thermal mitigation measures will be employed by the device at any point in time.

ENERGY STORAGE DEVICE, ENERGY STORAGE SYSTEM, AND CHARGING NETWORK

Resumen de: WO2026081569A1

The present application relates to the technical field of batteries, and discloses an energy storage device, an energy storage system, and a charging network. The energy storage device comprises battery cell assemblies, an energy storage housing, and a frame. Each battery cell assembly comprises at least one battery cell. The energy storage housing has an accommodating cavity; the frame is accommodated in the accommodating cavity; the frame is provided with a plurality of first partitions arranged at intervals in a height direction; an accommodating space is formed between every two adjacent first partitions; each accommodating space accommodates a battery cell assembly; and the first partition located at the bottom of each accommodating space is used for supporting the corresponding battery cell assembly. At least one of two adjacent first partitions is a thermal management component, and the thermal management component is used for regulating the temperature of battery cells. The technical solution provided by the present application can improve the volumetric energy density of the energy storage device.

POLYACRYLATE BINDER AND USE THEREOF, ELECTRODE SHEET AND LITHIUM-ION BATTERY

Resumen de: WO2026081299A1

The present invention relates to the technical field of secondary battery materials. Disclosed are a polyacrylate binder and the use thereof, an electrode sheet and a lithium-ion battery. The polyacrylate binder provided by the present invention achieves good bonding performance by means of the regulation of the molecular weight of the binder and the contents of cyano groups, ester groups and carboxylate groups in the molecular chain of the binder, and the adjustment of the electrolyte absorption of the binder can also be achieved; and the binder is harmless to humans, and is environmentally friendly and inexpensive. The binder is introduced into an electrode sheet as a raw material for a water-borne safety coating; and on the basis of the good bonding performance of the binder, the water-borne safety coating can be firmly adhered onto the surface of a current collector of the electrode sheet, thereby reducing the surface contact resistance and improving the safety of a battery cell. Moreover, by limiting the contents of cyano groups, ester groups and carboxylate groups in the binder, the rate capability and high-temperature and low-temperature discharge performance of the battery cell can be significantly improved, thereby improving the safety performance and cycle performance of the battery.

LITHIUM IRON FLUOROSULFATE POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: WO2026082001A1

Provided are a lithium iron fluorosulfate positive electrode material, a preparation method therefor, and a use thereof. The positive electrode material comprises lithium iron fluorosulfate, and carbon nanotubes coated on the lithium iron fluorosulfate. The positive electrode material is secondary particles, and the particle size of the secondary particles is 2-10 μm. The secondary particles are composed of nanoscale primary particles, and the particle size of the primary particles is 20-200 nm. The preparation method comprises the following steps: 1) grinding lithium fluoride to a particle size of 10 μm or less; 2) ball milling and mixing the ground lithium fluoride with ferrous sulfate and carbon nanotubes, to obtain a mixture; and 3) performing calcining on the mixture, to obtain a lithium iron fluorosulfate positive electrode material. The positive electrode material has better electronic conductivity and ionic conductivity, a higher specific capacity, and better cycle performance, as well as excellent high-temperature performance and low-temperature performance.

MOTOR WINDING-BASED BATTERY PACK HEATING METHOD, APPARATUS, AND DEVICE, AND STORAGE MEDIUM

Resumen de: WO2026081286A1

The present application relates to the technical field of battery thermal management, and discloses a motor winding-based battery pack heating method, apparatus, and device, and a storage medium. Disclosed is a motor winding-based battery pack heating method, comprising: detecting a rotor temperature by means of a rotor operating state temperature model; upon receiving a heating instruction, separately turning on at least two of bridge arm switches of a first phase, a second phase and a third phase of a power device on the basis of the rotor temperature and a switch-on strategy, so as to perform winding heating between different phases; transferring, to a battery pack, heat generated during the heating of the windings; and stopping the heating of the windings on the basis of a temperature protection strategy, so as to complete heating of the battery pack.

METHOD FOR PRODUCING SOLID ELECTROLYTE MATERIAL

Resumen de: US20260112690A1

0000 A method for producing a solid electrolyte material of the present disclosure is a method for producing a solid electrolyte material including Li, Ti, Al, and F, the method including pulverizing a mixture including one or more compounds each having composition different from that of the solid electrolyte material and including Li, Ti, Al, and F, and a solvent, and drying a pulverized product obtained through the pulverization. The one or more compounds include Li<2>TiF<6>.

ULTRAFINE NANO-SILICON-BASED NEGATIVE ELECTRODE MATERIAL PREPARED ON BASIS OF IN-SITU HIGH-TEMPERATURE PHASE CHANGE IN CONFINEMENT MICROCAVITY, AND PREPARATION METHOD THEREFOR

Resumen de: WO2026081918A1

The present invention provides an ultrafine nano-silicon-based negative electrode material prepared on the basis of in-situ high-temperature phase change in a specific confinement microcavity, and a preparation method therefor. In the method, silicon and a conductive porous material are mixed in a solvent, then sanding is performed, solid particles are formed by means of reforming granulation, and a confinement microcavity is constructed by means of coating treatment. By means of transient heating and cooling, the silicon source is sublimated and desublimated into particles having a size of 10 nm or less, and the particles are embedded in the porous material, thereby achieving extreme nanometerization of silicon. The method effectively solves the problems such as volume expansion, low conductivity, and poor cycle stability when silicon is used as a negative electrode material of a lithium-ion battery, improves electron transport, prolongs cycle life, simplifies the process, reduces costs, and has good commercial prospects.

POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260109620A1

A positive electrode active material, a preparation method thereof, a positive electrode plate, a battery, and an electric device are provided. The positive electrode active material includes a core and a coating layer. The core includes a sodium-ion transition metal oxide containing the iron element and/or nickel element. In the sodium-ion transition metal oxide, a molar amount of the iron element is denoted as b, a molar amount of the nickel is denoted as c, 0≤b≤0.4, and 0≤c≤0.4. The coating layer is disposed on at least a portion of a surface of the core, the coating layer contains an alkaline sodium compound, and based on a total mass of the positive electrode active material, a mass proportion of the alkaline sodium compound is w %, which satisfies:0.1≤(b+c)/w≤0.5.

CATHODE MATERIAL, PREPARATION METHOD THEREOF, CATHODE PLATE, AND SECONDARY BATTERY

Resumen de: US20260109604A1

A cathode material, including a core and a first carbon layer. The first carbon layer is a multi-carbon intercalated layer including a main skeleton carbon and a modified carbon, the main skeleton carbon is bonded to a surface of the core, and the modified carbon grows within the main skeleton carbon in an intercalated manner. In this way, the generation of pores is reduced, making the porosity of the multi-carbon intercalated layer lower than the porosity of the existing in-situ carbon coating layer. The pore structure in the multi-carbon intercalated layer is reduced, such that the time for the solvent to infiltrate the pores during the slurry preparation process is shortened, and the volume of solvent required to infiltrate the pores is reduced. This is beneficial to reduce the generation of slurry bubbles, making it easy to prepare a slurry with good rheology and uniformity.

ADAPTIVE CONTROL METHOD AND DEVICE FOR BATTERY MANAGEMENT SYSTEM, MEDIUM, AND PROGRAM PRODUCT

Resumen de: WO2026082041A1

Provided in the present application are an adaptive control method and device for a battery management system, a medium, and a program product. The method comprises: by means of a cloud battery management system, acquiring real-time data of a target vehicle; analyzing the real-time data to determine the real-time operating condition of the target vehicle and a target control strategy; and adapting the target control strategy to a target cloud platform having a mapping relationship with the real-time operating condition, such that the target cloud platform controls battery systems of all vehicles in a vehicle set associated therewith.

METHOD FOR PRODUCING SOLID ELECTROLYTE, SOLID ELECTROLYTE, POSITIVE ELECTRODE MATERIAL, AND BATTERY

Resumen de: US20260112691A1

0000 A production method for a solid electrolyte of the present disclosure includes (A) performing fluorination treatment on a raw material including a composite oxide containing Li and Ti, to obtain a solid electrolyte including a crystal phase represented by a composition formula (1): Li<2>TiF<6>. A solid electrolyte of the present disclosure includes a crystal phase represented by the composition formula (1): Li<2>TiF<6 >and is substantially free of TiF<4>.

METHOD FOR PRODUCING FLUORIDE

Resumen de: US20260109650A1

A method for producing a fluoride of the present disclosure includes firing a mixture, which includes a first ammonium salt containing Ti and F, a second ammonium salt containing Al and F, and having composition different from that of the first ammonium salt, and a lithium-containing compound, in an inert gas atmosphere. The first ammonium salt is represented by (NH4)aTiFa+4, and a satisfies 0

COMPOSITE LITHIUM BATTERY SEPARATOR AND PREPARATION METHOD THEREFOR

Resumen de: WO2026082022A1

A composite lithium battery separator, comprising a polymer-based film and a coating that coats the polymer-based film, wherein the material of the coating comprises natural clay mineral nanotubes and polyphosphazene resin microspheres.

PRECURSOR FOR POLYANIONIC SODIUM-ION BATTERY POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR

Resumen de: WO2026081913A1

Disclosed in the present invention are a precursor for a polyanionic sodium-ion battery positive electrode material and a preparation method therefor. The chemical general formula of the precursor is NaxMyHzOa(POb)c·mH2O, wherein M is a transition metal element Fe and/or Mn. The relationship between x, y, z, a, b, and c is x+3y+z-2a+5c-2b×c=0, and m is greater than or equal to 0. The precursor for the polyanionic sodium-ion battery positive electrode material and the preparation method therefor of the present invention have the characteristics of high phase purity, high compaction density, excellent electrochemical performance, low costs, and wide system applicability.

ULTRA-FINE NANOPHOSPHORUS-CARBON NEGATIVE ELECTRODE MATERIAL PREPARED ON BASIS OF IN-SITU HIGH-TEMPERATURE PHASE CHANGE IN CONFINED MICROCAVITIES, AND PREPARATION METHOD THEREFOR

Nº publicación: WO2026082054A1 23/04/2026

Solicitante:

SUZHOU XRISE ADVANCED MATERIAL TECH CO LTD [CN]
\u82CF\u5DDE\u534F\u665F\u65B0\u6750\u6599\u6280\u672F\u6709\u9650\u516C\u53F8

Resumen de: WO2026082054A1

The present invention provides an ultra-fine nanophosphorus-carbon negative electrode material prepared on the basis of in-situ high-temperature phase change in confined microcavities, and a preparation method therefor. The method aims at solving the problems of large volume expansion, poor conductivity, poor cycle stability and the like when phosphorus is used as a negative electrode material of an alkali metal-ion battery. By constructing confined microcavities on the surface of a porous conductive material and using a transient high-temperature phase change technique, phosphorus can be uniformly distributed and nanocrystallized. The method comprises: mixing phosphorus and a conductive porous material in a solvent, and then performing sand milling; forming solid particles by means of reforming and granulation; constructing confined microcavities by means of coating treatment; performing transient heating in a high-temperature apparatus, so that a phosphorus source is rapidly sublimated and uniformly distributed; and finally, performing heat preservation and conversion in a sealed container. In this way, the stability of the material is improved. The method not only enhances the utilization rate of phosphorus and the conductivity of the material, but also prolongs the service life of a battery and enhances the energy density of the battery, and has the advantages of simplifying a production process and reducing the production costs.