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ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US2025210710A1

Electrolytes and rechargeable lithium batteries including the same are disclosed. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive. The additive includes Compound 1 represented by Chemical Formula 1 and Compound 2 represented by Chemical Formula 2.

ELECTROLYTE ADDITIVE FOR LITHIUM ION BATTERY, ELECTROLYTE COMPRISING SAME, AND LITHIUM ION BATTERY COMPRISING SAME

Resumen de: US2025210713A1

The electrolyte additive for a lithium-ion battery has a minimum electrostatic potential (ESP) of −151 KJ mol-1 to −100 kJ mol-1.

ELECTROLYTE FOR LITHIUM METAL BATTERY, AND LITHIUM METAL BATTERY INCLUDING THE SAME

Resumen de: US2025210717A1

Described are an electrolyte for a lithium metal battery, and a lithium metal battery including the same, the electrolyte containing a first lithium salt containing a fluorosulfonyl group, a second lithium salt containing a trifluoromethanesulfonyl group, and a solvent containing a fluorosulfonyl group, wherein a molar ratio of the first lithium salt to the second lithium salt is 0.65:0.35 to 0.75:0.25.

Lithium Secondary Battery

Resumen de: US2025210651A1

A lithium secondary battery may include an electrode assembly including a positive electrode, an electrolyte, and a battery case including an internal space for accommodating the electrode assembly and the electrolyte. The positive electrode includes a positive electrode active material, and the positive electrode active material includes a lithium nickel-based oxide containing 50 mol % to 70 mol % of nickel among all metals excluding lithium. An electrolyte filling factor (EFF) index defined by Equation 1 is 1.52 to 1.88.EFF=RE×SUNCEquation⁢1In Equation 1, RE is a mass of residual electrolyte contained in the lithium secondary battery after activation, SU is a ratio (SE/SC) of the volume (SE) of the electrode assembly and the volume (SC) of the lithium secondary battery, and NC is a capacity when the lithium secondary battery is discharged from 4.4 V to 3.0 V at 0.33 C at 25° C.

COMPOSITE SOLID ELECTROLYTE LAYER, METHOD FOR PREPARING THE SAME, AND ALL-SOLID SECONDARY BATTERY

Resumen de: US2025210701A1

Provided is a composite solid electrolyte layer having excellent power performance and long-term cycle stability. An embodiment of the present invention provides a composite solid electrolyte layer including a solid electrolyte layer containing a solid electrolyte, an electron blocking layer disposed on at least one surface of the solid electrolyte layer, and a lithiophilic layer disposed on the electron blocking layer.

MODIFIED TERNARY POSITIVE ELECTRODE MATERIAL APPLIED TO ALL-SOLID-STATE BATTERY, PREPARATION METHOD THEREFOR, AND ALL-SOLID-STATE BATTERY

Resumen de: WO2025130682A1

A modified ternary positive electrode material applied to an all-solid-state battery. The modified ternary positive electrode material has a coated structure, comprising, in sequence from inside to outside, an inner core, an island-shaped inner coating layer, and a layered outer coating layer. The inner core is a ternary positive electrode material matrix, the island-shaped inner coating layer is crystalline LiaXbOc, and the layered outer coating layer is amorphous LiαYβOγ; the powder electronic conductivity of the material is 10-4-10-2S/cm. A preparation method for the modified ternary positive electrode material comprises: uniformly mixing the ternary positive electrode material matrix with an X-containing oxygen-containing compound, then performing high-temperature sintering processing, uniformly mixing the sintered product and a Y-containing oxygen-containing compound, and performing low-temperature sintering processing, to obtain a modified ternary positive electrode material which can be applied to an all-solid-state battery. Also disclosed is an all-solid-state battery. The inner coating layer and the outer coating layer of the modified ternary positive electrode material have ionic conductivity, which can promote the transmission of lithium ions between the positive electrode active material and a solid electrolyte, and reduce interface impedance.

POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2025131012A1

A positive electrode material, and a preparation method therefor and the use thereof. The positive electrode material comprises secondary particles formed by the agglomeration of primary particles, wherein the primary particles comprise an active material having a chemical formula of LiMz(MnxFe1-x)1-z(BO3)y(PO4)1-y, where M comprises at least one of Mg, Ti, Nb, Al, Ni and rare earth elements, 0.4≤x≤0.7, 0.0025≤y≤0.01, and 0≤z≤0.003; the mass percent of boron in the primary particles is 0.5-1%; and B-O bonds are present between adjacent primary particles. In the positive electrode material, an excess of boron is introduced into the active material, thereby resulting in the presence of B-O bonds between adjacent primary particles in the positive electrode material; and the fluxing effect of the B-O bonds can improve the compactness between the primary particles and reduce the distance between adjacent primary particles, which is beneficial for improving the compaction density of a positive electrode active layer prepared from the positive electrode material and enables the positive electrode material to have relatively high discharge capacity.

BATTERY PACK, LIQUID COOLING SYSTEM, VEHICLE AND ENERGY STORAGE SYSTEM

Resumen de: WO2025130647A1

Embodiments of the present application provide a battery pack, a liquid cooling system, a vehicle and an energy storage system. The battery pack comprises a case and a plurality of battery cells; the plurality of battery cells are accommodated in the case or a closed space is formed between the cells and the case; the battery cells each comprise a cell body and an electrical connector arranged on the cell body; a first flow channel is formed between two adjacent battery cells or between the battery cells and the inner wall of the case, and the first flow channel is used for accommodating a heat exchange working medium; at least part of each cell body is immersed in the heat exchange working medium; and the area of contact between each electrical connector and the heat exchange working medium is zero. Therefore, the risk of ionization of the heat exchange working medium can be reduced.

BATTERY MODULE AND BATTERY PACK

Resumen de: WO2025129827A1

The present application provides a battery module and a battery pack. The battery module comprises: a case provided with an accommodating space as well as a pressure relief opening and a first air inlet which are separately communicated with the accommodating space, wherein a pressure relief mechanism is arranged at the pressure relief opening, and an air inlet mechanism is arranged at the first air inlet; cells arranged in the accommodating space; and a first detection unit mounted on the case and used for implementing detection on a preset object, wherein the first detection unit is electrically connected to the pressure relief mechanism, the pressure relief mechanism opens the pressure relief opening when the first detection unit detects thermal runaway of the cells, and the air inlet mechanism opens the first air inlet when the pressure in the accommodating space is smaller than or equal to a pressure threshold.

STACKING MECHANISM, PRODUCTION LINE, AND STACKED CELL MANUFACTURING METHOD

Resumen de: WO2025129843A1

The present application discloses a stacking mechanism, a production line, and a stacked cell manufacturing method using the stacking mechanism. The stacking mechanism is used for stacking a stacking roll and electrode sheets to process same to form a cell. The stacking roll comprises a stacking section and a buffering section. The stacking mechanism comprises a stacking platform and a stretching assembly. The stacking platform is provided with a support surface for supporting the stacking section, and is configured to be capable of moving reciprocatingly in a first direction parallel to the support surface. The stretching assembly is used for guiding the buffering section to the stacking platform, and is configured to be capable of moving reciprocatingly in the first direction. The movement direction of stretching assembly is opposite to that of the stacking platform. The stacking mechanism and the production line of the present application can effectively increase the relative movement speed of the stacking platform and the stretching assembly, improve the stacking efficiency, ensure the quality of stacking, reduces the difficulty in motor model selection, and improve the stability of stacking operations.

BUSBAR PLATE AND BATTERY

Resumen de: WO2025130031A1

A busbar plate and a battery, which are used in the technical field of battery production and processing. The battery comprises the busbar plate. A plurality of welding traces (2) is formed on one side of the busbar plate so as to be combined with a winding core (3). The welding traces (2) are distributed in an array around the circumference of the busbar plate, and each welding trace (2) presents a smooth wavy curve.

DISTANCE MEASURING APPARATUS AND METHOD, AND BATTERY ASSEMBLING DEVICE AND METHOD

Resumen de: WO2025130036A1

Embodiments of the present application provide a distance measuring apparatus and method, and a battery assembling device and method. The distance measuring apparatus comprises a photographing device, a processor and a calibration assembly, wherein the photographing device is configured to photograph a picture of a gap appearing during battery assembly, the processor is configured to process the picture to obtain the width of the gap in a first direction, and the calibration assembly is configured to cooperate with the processor to correct photographing parameters of the photographing device and enable the difference between a measured value of the gap and an actual value of the gap to be smaller than a preset value, wherein the measured value of the gap is the width of the gap in the first direction derived from the picture taken by the corrected photographing device and processed by the processor. The battery assembling device comprises the distance measuring apparatus.

PRODUCTION METHODS AND WORKING PRINCIPLE FOR THE PRE-EXPANSION OF CHALCOGENIDE-BASED ELECTRODES PRIOR TO THEIR REACTION WITH ALKALI/ALKALINE EARTH METALS

Resumen de: US2025206610A1

The present invention relates to the working principle and production methods for the pre-expansion of sulfur and/or other chalcogenides such as selenium or tellurium, and/or a mixture of any two or more. The present invention further relates an electrode/cathode comprising sulfur and/or a mixture of sulfur allotropes, for example, crystalline, glassy, amorphous, and/or polymeric (e.g., β-, γ-, and/or ω-phasic) sulfur and/or a mixture of any two or more sulfur allotropes, wherein the sulfur is photonically/electronically/thermally pre-expanded to a state where it has a density equivalent to a metal sulfide, such as Li2S. The expansion is carried out before electrode/cathode fabrication for the realization of alkali and/or alkali earth metal/ion batteries, such as LiS batteries. The resulting pre-expanded chalcogenides such as sulfur has an artificially generated internal cavities/porosity in addition to an open/external porosity, wherein the internal cavities limits and/or compensates the expansion of sulfur further or expansion partially/negligibly during chemical/electrochemical reactions, such as lithiation or sodiation, with mono, di, and trivalent metal ions. A thus fabricated electrode/cathode comprising pre-expanded sulfur and/or chalcogenides allows precise control over density and volume fluctuations and withstands the chemical and electrochemical reactions that occur during battery operation. Additionally, leads to improved performance, and longevity and offers s

METHOD FOR PREPARING LITHIUM-ION BATTERY CATHODE MATERIAL

Resumen de: US2025206635A1

A method for preparing a lithium-ion battery cathode material includes implementing a Couette-Taylor reaction operation and a calcining operation. The Couette-Taylor reaction operation includes feeding a first reaction liquid and a second reaction liquid into a Couette-Taylor reactor to form a product stream including a cathode material precursor. The first reaction liquid is a multi-metal solution containing a nickel compound, a cobalt compound, and a manganese compound. The second reaction liquid is a lithium source metal solution containing a lithium compound. The cathode material precursor contains lithium elements. The calcining operation includes using a high-temperature tubular furnace to calcine the cathode material precursor to obtain the lithium-ion battery cathode material.

PROCESS FOR MANUFACTURING BIS(FLUOROSULFONYL)IMIDE SALTS

Resumen de: US2025206612A1

The present invention relates to a process for preparing a salt of bis(fluorosulfonyl)imide, preferably lithium bi(fluorosulfonyl)imide (LiFSI).

POSITIVE ACTIVE MATERIALS, PREPARATION METHODS THEREOF, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US2025206636A1

A method of preparing a positive electrode active material, a positive electrode and a rechargeable lithium battery are provided. The method of preparing the positive electrode active material includes mixing nickel-manganese-based composite hydroxide and a lithium raw material and subjecting them to primary heat treatment at about 200° C. to about 350° C. and secondary heat treatment at about 800° C. to about 1000° C.

POLYMER ELECTROLYTES AND METHODS TO PRODUCE THEM

Resumen de: US2025210707A1

A polymer electrolyte for a battery cell. The polymer electrolyte includes or substantially consists of a polymaleimide copolymer. The polymaleimide copolymer includes or substantially consists of first polymaleimide repeat units and second polymaleimide repeat units, wherein the first polymaleimide repeat units and the second polymaleimide repeat units are covalently bonded to one another.

BATTERY PACK

Resumen de: US2025210740A1

A battery pack has a temperature detection unit that detects the temperature of a battery cell. The temperature detection unit is provided with a first temperature sensor that is attached to a central battery cell disposed at the center in a first direction among a plurality of battery cells, and a second temperature sensor that is attached to an end battery cell disposed at one end in the first direction among the plurality of battery cells. No temperature sensor is attached to an end battery cell disposed at the other end in the first direction among the plurality of battery cells.

ELECTROLYTE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERIES CONTAINING THE SAME

Resumen de: US2025210720A1

In an electrolyte for lithium secondary batteries that contains a lithium salt and 4-fluorotoluene (1F-substituted aromatic solvent, 1-FAS) as a lithium-salt-non-dissociable fluorinated ether solvent and a lithium-dissociable ether solvent, the 4-fluorotoluene solvent suppresses the reaction of lithium-dissociable ether with a lithium metal anode and thus exhibits high flame retardancy, excellent ionic conductivity, and superior lifespan characteristics, a method of preparing the same, and a lithium secondary battery including the same.

ALKALI METAL-CONTAINING POLYMER, AND ELECTROLYTE COMPOSITION AND BATTERY CONTAINING SAME

Resumen de: US2025210705A1

A polymer containing a structural unit (A) having an anion moiety with an alkali metal ion as a counter cation and a structural unit (B) having a functional group with a function as an anion receptor.

ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US2025210709A1

An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent; a lithium salt; a first additive represented by represented by Chemical Formula 1; and a second additive represented by represented by Chemical Formula 2:In addition, a rechargeable lithium battery including the electrolyte is also disclosed.

SOLID IONICALLY CONDUCTIVE COMPOSITE CONTAINING AN ARGYRODITE STRUCTURE, ELECTROCHEMICAL CELL COMPRISING SAME

Resumen de: US2025210698A1

Processes for making sulfide-based solid electrolyte composites include mixing a lithium-containing material, a phosphorus-containing material, a sulfur-containing material, and a halogen-containing material in a solvent, removing the solvent, and then heat-treating the materials to form the sulfide-based solid electrolyte composites. The composites include an argyrodite component and second component, wherein each component has a unique x-ray diffraction pattern. The electrolyte composites may be incorporated into electrochemical cells, including solid-state batteries.

ENERGY STORAGE CONTAINER AND ENERGY STORAGE SYSTEM

Resumen de: WO2025130636A1

An energy storage container (100) and an energy storage system (1000). The energy storage container (100) comprises a housing (10), wherein a battery compartment (20), an electrical compartment (30), and a liquid cooling unit (40) are arranged in the housing (10); and the electrical compartment (30) and the liquid cooling unit (40) are arranged on the same end side of the battery compartment (20) in a first direction (O). Such arrangement can effectively improve the space utilization ratio of the energy storage container (100); and additionally, a worker can inspect the electrical compartment (30) and the liquid cooling unit (40) on the same end side of the energy storage container (100), thereby effectively improving the convenience of on-site maintenance.

BOX AND BATTERY CELL MODULE WITH SAME

Resumen de: WO2025130864A1

A box and a battery cell module with same. The box is configured to store a battery cell, and the box comprises: a housing (10), wherein the housing (10) is provided with an accommodating cavity (11), a maintenance hole (12) is provided in the top of the housing (10), the maintenance hole (12) is in communication with the accommodating cavity (11), the accommodating cavity (11) is configured to store the battery cell, and the maintenance hole (12) is configured to correspond to the battery cell; and an upper cover (20) which is detachably arranged on the housing (10), wherein the upper cover (20) can cover the maintenance hole (12). Therefore, the problem of it being impossible to maintain a liquid cooling PACK and a battery cell module due to potting and adhesive bonding between a box lid and a box body is solved.

CYLINDRICAL BATTERY ASSEMBLY AND ENERGY STORAGE POWER SUPPLY

Nº publicación: WO2025130928A1 26/06/2025

Solicitante:

HAINAN XUNWEI TECH CO LTD [CN]
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Resumen de: WO2025130928A1

The present application belongs to the technical field of batteries. Disclosed are a cylindrical battery assembly and an energy storage power supply. The cylindrical battery assembly comprises a plurality of cylindrical batteries, at least one electrical connecting sheet and at least one first insulating member. Each of the plurality of cylindrical batteries comprises end faces including a first end face and a second end face; the plurality of cylindrical batteries are electrically connected by means of the at least one electrical connecting sheet; and a part or all of each first insulating member in the at least one first insulating member is arranged between a plane where the first end face is located and a plane where the corresponding electrical connecting sheet is located, and each first insulating member is provided with first through holes, the first through holes being configured to provide connection spaces for the cylindrical batteries and the corresponding electrical connecting sheet. The cylindrical battery assembly of the present application can effectively improve an insulation protection effect on the cylindrical batteries, thereby reducing the probability of short circuits occurring during the usage of the cylindrical batteries, and further enhancing the safety.