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1802
results.
Updated on
14/10/2025 [07:10:00]
Results 100 to 125 of 1802
Absstract of: US2025316766A1
A secondary battery, including a positive electrode plate and an electrolyte solution are disclosed. The positive electrode plate includes a current collector and a positive electrode material layer disposed on at least one side of the current collector. The positive electrode material layer includes a first lithium iron phosphate material and a second lithium iron phosphate material. Dv50 of the second lithium iron phosphate material is greater than Dv50 of the first lithium iron phosphate material. The Dv50 of the first lithium iron phosphate material is 0.05 μm to 6 μm. The electrolyte solution includes a solvent. The solvent includes a first solvent that is at least one selected from compounds represented by Formula I, where R1 and R2 each are independently selected from a C1 to C6 alkyl or a C1 to C6 haloalkyl. The secondary battery of this application exhibits good balanced overall performance.
Absstract of: US2025316751A1
A semi-solid rechargeable battery, comprising a positive electrode, a negative electrode, a composite electrolyte film comprising a solid-liquid composite electrolyte between the positive electrode and the negative electrode, and a SEI layer comprising LiF, Li3N and organic components on the surface of the negative electrode, wherein the solid-liquid composite electrolyte comprises a sulfide-based solid electrolyte and a liquid electrolyte including a salt and an organic solvent.
Absstract of: US2025316752A1
A solid-state battery including: a positive electrode layer containing a positive electrode active material containing Li and a solid electrolyte, wherein a thermal weight reduction starting temperature at which a weight of the positive electrode active material decreases by 0.67% or more is 220° C. or higher and lower than 485° C. in a state where a lithium desorption amount of the positive electrode active material is 40%, and the solid electrolyte contains lithium borosilicate glass.
Absstract of: US2025316749A1
The invention discloses a preparation and application method of a high ionic conductivity polymer-based composite solid electrolyte, and belongs to the technical field of lithium-ion battery electrolytes. The organic-inorganic composite solid electrolyte is prepared by compounding a carbonate-based polymer, a conductive lithium salt, a porous support material, a functionalized silane coupling agent and an inorganic ion conductor material. The polycarbonate-based polymer electrolyte has high ionic conductivity, a wide electrochemical window and a high ion transference number; the functionalized silane coupling agent can form chemical bonds and interact with the polymer and the inorganic material to play a bridge role between the polymer and the inorganic filler, so that the ionic conductivity of the polymer electrolyte is improved, the electrochemical window of the polymer electrolyte is widened, the interface contact between the solid electrolyte and positive and negative electrodes is improved, and the electrochemical performance of the solid electrolyte is improved. Therefore, the charge-discharge performance of the lithium-ion battery is improved. The method is suitable for a lithium-ion solid-state battery of a high-voltage positive electrode material.
Absstract of: US2025316750A1
Provided are a modified sulfide solid electrolyte containing a sulfide solid electrolyte having a BET specific surface area of 10 m2/g or more and containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom, and at least one compound selected from the particular compounds (1) to (6) that is excellent in coating suitability in coating as a paste, and can exhibit the excellent battery capabilities efficiently, irrespective of the large specific surface area of the sulfide solid electrolyte, and a method of producing the same, and also an electrode mixture and a lithium ion battery using the same.
Absstract of: US2025316748A1
A method for producing an accumulator, having at least one cell stack, which is formed by stacked single sheets. The cell stack is wrapped with a film using a device.
Absstract of: US2025316867A1
A liquid injection device comprises a vacuumizing air path, first-level and second-level cups, injection paths, and liquid flowing assemblies. The first-level cup is formed with a plurality of buffer cavities that are isolated from each other; the second-level cup is formed with a plurality of liquid injection cavities that are isolated from each other; the liquid injection cavities are all communicated with the vacuumizing air path; each injection path is communicated with one buffer cavity; the liquid flowing assemblies, the buffer cavities, and the liquid injection cavities are arranged in a one-to-one correspondence manner; each liquid flowing assembly comprises a liquid flowing channel and a first switch element; the liquid flowing channel is communicated with one buffer cavity and one liquid injection cavity; and the first switch element is arranged in the liquid flowing channel to selectively open or close the liquid flowing channel.
Absstract of: US2025316862A1
A secondary battery assembly includes an electrode assembly having mutually perpendicular transverse, longitudinal, and vertical axes corresponding to the X, Y and Z axes, respectively, of a three-dimensional Cartesian coordinate system. The electrode assembly defines a population of faces, each face defined by two of the transverse, longitudinal, and vertical axes. The secondary battery assembly also includes a population of first current collector tabs electrically coupled to a first bus bar extending along a first face of the electrode assembly, the first face extending in at least one of a Z-X plane defined by the Z and X axes or a Z-Y plane defined by the Z and Y axes. The second battery assembly also includes a reinforcement structure disposed over at least a portion of the first current collector tabs, the first current collector tabs extending along the first face. The reinforcement structure includes a polymer.
Absstract of: US2025316765A1
Electrolyte compositions comprising electrolyte additives and/or solvents for reduction of thermal propagation in lithium-ion batteries are disclosed. Energy storage devices comprising the electrolyte compositions comprise a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode may be a Si-based electrode, a separator between the first electrode and the second electrode, and the electrolyte composition.
Absstract of: US2025316864A1
A battery module includes a cell stack, in which a plurality of cells are stacked, a body part configured to surround the cell stack, an endplate configured to block an opening of the body part and disposed on front and rear surfaces of the cell stack, and an insulating member disposed between the cell stack and the body part, wherein the insulating member includes a terminal cover having a shape extending to the outside of the body part.
Absstract of: US2025316857A1
A battery module with high impact resistance is provided. A battery module using an elastic body such as rubber for its exterior body covering a battery is provided. A bendable battery module is provided. As the exterior body covering a battery, an elastic body such as rubber is used, and the exterior body is molded in two steps. First, a first portion provided with a depression in which a battery is stored is molded using a first mold. Next, a battery is inserted into the first portion. Subsequently, second molding is performed using a second mold so as to fill an opening of the depression in the first portion, so that a second portion is formed. The second portion serves as a cover for closing the opening of the depression in the first portion. The second portion is formed in contact with part of the electrodes in the battery and part of an end portion of the second exterior body in the battery.
Absstract of: US2025316747A1
A secondary battery includes: a stacked-type electrode body that includes first electrode plates, second electrode plates, and a separator with a band-like shape; and an insulating sheet. The separator includes a zigzag-bent part that is bent in a zigzag manner, and a wound part that is wound to an outer periphery of a part where the first electrode plates, the second electrode plates, and the zigzag-bent part are stacked. The zigzag-bent part includes a first bent part that is disposed on one side in a direction perpendicular to a stacking direction of the first and second electrode plates, and a second bent part that is disposed on the other side in that direction. A separator overlap part where the wound part overlaps twice or more is provided outside the first bent part. The insulating sheet is disposed on an outer surface side of the separator overlap part.
Absstract of: US2025316739A1
A drying apparatus for manufacturing a rechargeable battery of the present disclosure includes: a hot air supply portion that supplies a hot air to an electrode plate; and a cold air supply portion that supplies a cold air to both sides along a width direction of the electrode plate.
Absstract of: US2025316746A1
A thermal composite laminated cell and a battery are disclosed. The thermal composite laminated cell is formed by folding a composite unit, and the composite unit includes a first separator, a second separator, first electrode plates and second electrode plates. Portions of the first separator and the second separator are fixedly connected to form pouch-like structures each with an opening. The first electrode plates are placed inside the respective pouch-like structures, and the second electrode plates are alternately arranged at a side of the first separator away from the first electrode plates and at a side of the second separator away from the first electrode plates along the length direction of the composite unit.
Absstract of: US2025316713A1
An electrochemical device includes a negative electrode plate. The negative electrode plate includes a negative current collector and a negative active material layer. The negative active material layer is located on the negative current collector. Along a thickness direction of the negative electrode plate, the negative active material layer includes a first layer and a second layer. The first layer is located between the negative current collector and the second layer. A porosity of the second layer is 5% to 20% higher than a porosity of the first layer. A thickness of the second layer is 5 μm to 20 μm.
Absstract of: US2025316743A1
A method for producing a storage cell for an electrical energy storage device includes providing an electrode winding having an electrode foil. A processing device is provided, having a base, which is rotatable about a base axis of rotation, and processing elements, which are each rotatable about an element axis of rotation relative to the base and which engage with a particular arcuate guide, assigned to the particular processing element, of the base. The base is rotated relative to the electrode winding, relative to the element axes of rotation and relative to the processing elements about the base axis of rotation, whereby the guides cause the processing elements to perform a particular pivoting movement about the element axes of rotation relative to the electrode winding, relative to the base and toward the base axis of rotation.
Absstract of: US2025316859A1
A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction. The end portion of each electrode current collector is bent in a direction orthogonal to the longitudinal direction, an electrode busbar is positioned extending in the stacking direction with a surface adjacent the end portions, and heat and pressure are applied to the electrode busbar to adhere the end portions to the busbar through an adhesive layer.
Absstract of: US2025316764A1
An electrolyte includes a salt, a first fluorinated diether having a degree of fluorination of 10% to 25%, and a second fluorinated ether having a degree of fluorination of 40% to 100%, wherein the degree of fluorination is determined by dividing a total number of carbon atoms in the first fluorinated diether or the second fluorinated ether, which is substituted with at least one fluoro by a total number of carbon atoms in the corresponding first fluorinated diether or the second fluorinated ether, and wherein the first fluorinated diether and the second fluorinated ether have a volume ratio of 1:4 to 4:1.
Absstract of: US2025316763A1
An electrolyte includes a metal cation selected from Li+, Na+, Mg2+, Ca2+, and/or Zn2+, a boron cluster anion, and a solvent mixture that includes an aromatic compound and at least one solvent. The aromatic compound can include benzene, toluene, o-xylene, m-xylene, p-xylene, mesitylene, hexamethylbenzene, biphenyl, naphthalene, and a compounds with partial or full substitutions of hydrogen with fluorine for these aromatic compounds. And the at least one solvent can include an ether solvent, an ester solvent, a sulfone solvent, a carbonate solvent, poly(ethylene oxide), an ionic liquid, a nitrile solvent, and/or combinations thereof.
Absstract of: US2025316762A1
An electrolyte includes a Formula (I) compound and a fluorocarbonate compound. X is an oxygen atom or N—R8. R1, R2, R3, R4, R5, R6, and R5 are each independently H; a halogen; substituted or unsubstituted: C1 to C10 alkyl, C2 to C10 alkenyl, C2 to C10 alkynyl, C6 to C10 aryl, C1 to C10 alkoxy, C2 to C10 enyloxy, C2 to C10 alkynyloxy, C6 to C10 aryloxy, C1 to C10 alkoxyalkyl, C1 to C10 carboxyl, C2 to C10 carboxylate, or C2 to C10 carbonate, C1 to C10 nitrogen-containing group, C1 to C10 sulfur-containing group, C1 to C10 boron-containing group, C1 to C10 silicone-containing group, or C1 to C10 phosphorus-containing group; cyano, or amino. R7 is a substituted or unsubstituted: C1 to C10 alkylene, C3 to C10 cycloalkylene, C1 to C10 oxygen-containing group, or C1 to C10 nitrogen-containing group. Where substituent group is a halogen or cyano.
Absstract of: US2025316761A1
An electrolyte includes a carboxylate ester compound and a norbornene anhydride compound. Based on a mass of the electrolyte, a mass percentage of the carboxylate ester compound is A % satisfying 5≤A≤45.
Absstract of: WO2025208965A1
Disclosed in the present invention is a common bus-based series formation and capacity grading production testing system, which comprises an alternating-current power grid, a PCS device, a common direct-current bus, a capacity grading part direct-current bus, a formation part direct-current bus, a formation master control box, a capacity grading master control box, series capacity grading devices of a capacity grading line, and series formation devices of a formation line. The PCS device is separately connected to the alternating-current power grid and the common direct-current bus. The common direct-current bus is separately connected to the formation master control box and the capacity grading master control box. The series capacity grading devices of the capacity grading line are separately connected to the capacity grading master control box and the capacity grading part direct-current bus. The series formation devices of the formation line are separately connected to the formation master control box and the formation part direct-current bus. In the present invention, the whole production line uses one PCS, and each independent device is directly connected to the common direct-current bus, so that during operation, electric energy fed back by batteries undergoing formation and capacity grading is preferentially used by other formation and capacity grading devices on the common bus, thus reducing the number of electric energy conversions in charge-discharge cycles, improvi
Absstract of: WO2025208983A1
The present application discloses a battery and an electrical apparatus. The battery comprises: a positive electrode plate, the positive electrode plate comprising a lithium iron phosphate material; an electrolyte, the electrolyte comprising an additive, and the additive comprising: formula (1) as shown. In formula (1), X1, X2, X3, and X4 each independently comprise H, F, or a fluorine-substituted or unsubstituted alkyl having 1-3 carbon atoms; on the basis of the total mass of the electrolyte, the mass proportion of the compound represented by formula (1) is 2% to 10%. The battery of the present application can significantly improve capacity attenuation of the lithium iron phosphate battery at low temperatures.
Absstract of: WO2025208686A1
A positive electrode plate, and a lithium ion battery using same. The positive electrode plate comprises a current collector and a positive electrode active material layer. The positive electrode active material layer comprises a first active material layer and a second active material layer, which are arranged in a composite manner. The first active material layer comprises a spinel-type lithium-manganese oxide material and a ternary material composite material. The second active material layer comprises a phosphate material. Individual crystal sizes of the spinel-type lithium-manganese oxide and the ternary material are D1 and D2 respectively, and satisfy formula (I).
Nº publicación: US2025313489A1 09/10/2025
Applicant:
PACIFIC IND DEVELOPMENT CORPORATION [US]
Pacific Industrial Development Corporation
Absstract of: US2025313489A1
A method for preparing titanium dioxide that includes the steps of providing at least one titanium precursor: providing one or more potassium precursors: mixing the at least one titanium precursor with the one or more potassium precursors to form a mixture: wherein the mixture has a potassium to titanium (K/Ti) molar ratio of 2.0/4.0<K/Ti<2.0/2.4; sintering the mixture at a temperature in the range of 750° C. to 900° C. for a predetermined time to form a powder: soaking the heated powder in an acidic solution: collecting and drying the acid-soaked powder: and treating the collected powder thermally at a temperature in the range of 300° C. to 500° C. for a predetermined time to form the TiO2. The titanium oxide formed has a monoclinic crystal structure. TiO2(B), as its major crystal phase with a mass percentage that is >50% of the overall mas of the TiO2.
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