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1603
resultados
Última actualización
10/11/2025 [07:13:00]
Resultados 1000 a 1025 de 1603
Resumen de: US2025336967A1
Provided are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and for example, a positive electrode for a rechargeable lithium battery, including a current collector, a first positive electrode active material layer on the current collector, and a second positive electrode active material layer on the first positive electrode active material layer. The first positive electrode active material layer includes a first particle having an olivine structure, and a second particle having a layered structure, and the second positive electrode active material layer includes a third particle having an olivine structure. The first particle is a single particle, the third particle is in the form of a secondary particle in which a plurality of third primary particles are aggregated, and the second particle has a greater average particle diameter than each of the first particle and the third particle.
Resumen de: US2025336966A1
The present specification relates to a method of preparing a positive electrode active material for a lithium secondary battery, and more particularly, to a positive electrode active material for a lithium secondary battery with excellent electrical conductivity and energy density, a preparation method thereof, and a positive electrode and a secondary battery including the same.
Resumen de: US2025337012A1
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery are disclosed. The electrolyte for a rechargeable lithium battery may include a non-aqueous organic solvent; a lithium salt; and an additive represented by Chemical Formula 1.R-L-N═C═O Chemical Formula 1
Resumen de: US2025336928A1
Disclosed are positive electrode active materials for a rechargeable battery, positive electrodes including the positive electrode active materials, and rechargeable lithium batteries including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, second particles comprising a compound having a spinel structure, and third particles comprising a compound having a layered structure. The first particles and the second particles constitute a main active material, and the amount of the main active material is about 80 parts by weight to about 90 parts by weight based on 100 parts by weight of the positive electrode active material.
Resumen de: US2025336915A1
The present disclosure relates to a positive electrode plate, in which a first active material layer has a depressed structure in which a plurality of depressions are formed on a side facing the second active material layer; a second active material layer has a protruded structure in which a plurality of protrusions are formed on a side facing the first active material layer; in a cross section in a thickness direction of the positive electrode active material layer, an interface at which the first active material layer and the second active material layer are in contact with each other has an uneven shape formed by a combination of the plurality of depressions and the plurality of protrusions; and a mass ratio of the second active material layer to the first active material layer in the positive electrode active material layer is from 1/9 to 3/7.
Resumen de: US2025336912A1
A method of applying uniform pressure to an all-solid-state battery during activation of the battery and preventing an interface contact surface from being separated as the result of gas generated in the all-solid-state battery is provided. This method increases the lifespan of the battery and an all-solid-state battery manufactured using the same method.
Resumen de: US2025336922A1
Positive electrode active materials for a rechargeable lithium battery, positive electrodes including the positive electrode active material, and rechargeable lithium batteries including the positive electrode active material are provided. The positive electrode active material comprises first particles comprising a compound of Lia1Mnz1Fex1Ay1PO4−c1 and second particles comprising a compound of Lia2Nix2Mnz2Xc2O2−b2. The cobalt (Co) content (e.g., amount) in the positive electrode active material is about 100 ppm or less.
Resumen de: US2025336933A1
The present disclosure relates to an electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the electrode. The electrode includes an active material layer for a rechargeable lithium battery, and an organic-inorganic composite layer integrated with the active material layer. The organic-inorganic composite layer includes nanofibers, the nanofibers include an inorganic material and a matrix, the inorganic material includes one or more of boron nitride nanosheets and boron nitride nanotubes, the matrix includes one or more of a polyimide-based polymer and a polyamic acid-based polymer, and the inorganic material is included in an amount of about 0.1 wt % to about 7 wt % in the nanofibers.
Resumen de: US2025337064A1
A battery cell, a battery, and an electrical apparatus are disclosed in the present application. The battery cell includes a shell and an end cover, where the shell has an opening; the end cover is welded at the opening to form a welding structure, the welding structure includes a plurality of first welding seams, the first welding seams are arranged corresponding to edge portions of the end cover, the plurality of first welding seams are connected to form a closed annular structure to be arranged surrounding the end cover; where two adjacent first welding seams are connected at a corresponding corner of the end cover in a laminated manner.
Resumen de: US2025337104A1
A composite diaphragm and a lithium-ion battery. The composite diaphragm includes a porous substrate and a porous active layer. The porous active layer is arranged on at least one surface of the porous substrate; the porous active layer includes a base coating and a non-binder polymer C embedded in the base coating; the base coating includes inorganic particles A and a binder polymer B; D50 of the non-binder polymer C is greater than a thickness of the base coating; a tortuosity of the composite diaphragm T=√{square root over (σ1/σ2×P)}, where σ1 is an ionic conductivity of an electrolyte, σ2 is an ionic conductivity of the composite diaphragm, and P is a porosity of the composite diaphragm; the tortuosity T of the composite diaphragm is in a range of 1.1 to 1.7.
Resumen de: US2025337045A1
A battery heat exchanger comprises; an upper plate which dissipates heat from a battery; a lower plate having a bonded body portion bonded to the bottom surface of the upper plate and a flow path body portion forming a flow path through which a cooling fluid is guided; an inlet body which guides the cooling fluid to the flow path; an outlet body through which the cooling fluid after passing through the flow path is discharged; and a plurality of columns which protrude from at least one of the upper plate and the lower plate to be located in the flow path and each have the outer circumference spaced apart from the side wall of the flow path body portion, wherein the plurality of columns are formed along the flow path, at least one of the plurality of columns is an elliptical column having an elliptical cross-sectional shape, and the elliptical pillar is lengthily formed in the lengthwise direction of the flow path.
Resumen de: US2025337074A1
Disclosed is a battery module, which includes a module case having a predetermined accommodation space; a plurality of battery cells accommodated in the module case; a plurality of bus bar members provided at an upper side of the plurality of battery cells to electrically connect the plurality of battery cells; a support plate disposed between the plurality of battery cells and the plurality of bus bar members to support the plurality of bus bar members; and a foam member filled in a space between the plurality of battery cells at a bottom portion of the support plate.
Resumen de: US2025336963A1
A positive electrode active material for a secondary battery includes a lithium complex transition metal oxide and a surface coating portion. The lithium complex transition metal oxide includes nickel (Ni), cobalt (Co), and at least one selected from the group consisting of manganese (Mn) and aluminum (Al). The surface coating portion is formed on surfaces of the lithium complex transition metal oxide particles and the surface coating portion includes a cobalt-rich layer, which has a higher cobalt content than the lithium complex transition metal oxide, and a lithium boron oxide.
Resumen de: US2025336959A1
A negative electrode sheet, and a secondary battery and an electrical device including the same are described. The negative electrode sheet comprises a current collector and a negative electrode active layer stacked on surface of the current collector, and the negative electrode active layer comprises a first active layer and a second active layer which are stacked. The materials of the first active layer comprise, in percentage by mass based on the first active layer: 60%-94% of a silicon-based material, 0%-30% of a carbon-based material, and 5%-15% of a binder. The materials of the second active layer comprise, in percentage by mass based on the second active layer: 0%-5% of a second silicon-based material, 94%-99% of a second carbon-based material, and 1%-3% of a second binder. The negative electrode sheet has good cycle performance.
Resumen de: US2025337019A1
The present disclosure provides a non-aqueous electrolyte and a lithium secondary battery including the same. The non-aqueous electrolyte of the present disclosure includes a lithium salt; an organic solvent and an additive. The organic solvent includes a first organic solvent and a second organic solvent, the first organic solvent may be CFH2CFHCFH2, and the second organic solvent may be a cyclic carbonate-based organic solvent.
Resumen de: US2025337007A1
A solid polymer electrolyte includes a charge transfer complex polymer matrix with a polar ring polymer matrix and a halogen functionalized sulfone-based plasticizer molecule additive. In some variations, the halogen functionalized sulfone-based plasticizer molecule additive is selected from one or more CCS(═O)(═O), O═S(═O)(CCl)CCl, and O═S1(═O)CC(BR)Cl.
Resumen de: US2025336960A1
The present invention relates to a silicon anode for a solid-state battery including Si atoms of 99 wt % or more and composed of crystalline Si.
Resumen de: US2025335841A1
Proposed is an apparatus and a method for preventing parts supply errors. The method includes inputting a recipe for a battery module into assembly equipment, supplying a part to the assembly equipment, reading a code displayed on the part supplied to the assembly equipment, determining, by the assembly equipment in the first determination step, whether the recipe stored in the assembly equipment matches the supplied part on the basis of the read code, determining, by an equipment management system in the second determination step, whether a recipe stored in the equipment management system matches the supplied part on the basis of the read code, and stopping operation of the assembly equipment and outputting an alarm when at least one result of the first determination step or the second determination step comes out as mismatch.
Resumen de: US2025334637A1
A system and method for detecting and classifying outlier battery cells operating abnormally in a storage battery of a battery energy storage system (BESS). A controller controls the operation of the BESS, and a battery management system (BMS) collects battery operational data from the storage battery and stores the battery data in a data repository. A prognostic agent coupled to the battery data repository uses the stored battery data to train a prognostics and fault detection model that is loaded in the controller and used to detect at least one outlier battery cell. Detected outlier battery cell and their operational data are classified using a data classification neural network to one of a plurality of fault types.
Resumen de: US2025334643A1
A battery managing apparatus according to one embodiment of the present disclosure includes: a profile acquisition unit configured to obtain a battery profile representing the relationship between voltage and capacity of the battery; a profile determination unit configured to adjust a preset reference positive electrode profile and reference negative electrode profile to correspond to the battery profile and determine the positive electrode profile and negative electrode profile of the battery; and a control unit configured to calculate the lithium loss rate of the battery based on the positive electrode profile, calculate the negative electrode side-reaction rate of the battery based on the battery profile, and calculate the positive electrode side-reaction rate of the battery based on the lithium loss rate and the negative electrode side-reaction rate.
Resumen de: US2025334638A1
For each cell in a plurality of cells from a same manufacturing run, a first and a second cell characteristic are received in order to obtain a plurality of cell characteristics. For each cell, a batch compatibility number that is associated with a number of compatible cells that that cell is compatible with is determined based at least in part on the plurality of cell characteristics. The plurality of cells is sorted according to the batch compatibility numbers to obtain a sorted list of cells. A plurality of compatible cells to include in a battery is selected from the plurality of cells, including by evaluating the plurality of cells according to the order of the sorted list of cells and beginning with the lowest batch compatibility number.
Resumen de: US2025337108A1
The present disclosure relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate. The coating layer includes a heat-resistant layer including a binder and a filler, and an adhesive layer including an adhesive binder on the heat-resistant layer. The binder includes a (meth)acryl-based binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof. The filler includes a filler having a particle diameter D50 ranging from about 250 nm to about 350 nm. The adhesive binder includes a fluorine-based homopolymer, and an interpenetrating polymer network (IPN) binder mixture of a fluorine-based cross-linked polymer and an acrylate-based cross-linked polymer.
Resumen de: US2025337113A1
The present disclosure relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate. The coating layer includes a heat-resistant layer including a binder and a filler, and an adhesive layer including an adhesive binder on the heat-resistant layer. The binder includes a (meth)acryl-based binder including a first structural unit derived from (meth)acrylic acid or a derivative of (meth)acrylic acid, a hydroxyl group-containing second structural unit, and a sulfonate group-containing third structural unit. The filler includes a cubic filler having a particle diameter D50 ranging from about 50 nm to about 250 nm. The adhesive binder includes a fluorine-based adhesive binder having a carbonyl (C═O) functional group.
Resumen de: US2025337043A1
An embodiment battery cooling system for a vehicle includes a battery pack and a plurality of battery cells disposed in the battery pack, wherein the battery pack includes a first air inlet and a second air inlet disposed in both ends in a width direction, respectively, and a first air outlet and a second air outlet disposed inside in the width direction, respectively.
Nº publicación: US2025337049A1 30/10/2025
Solicitante:
URBIX INC [US]
Urbix Inc
Resumen de: US2025337049A1
Battery packs, systems, and methods of implementing improved thermal management are described. A battery pack may include a cell holder, an inlet disposed proximate to a first end of the cell holder, an outlet disposed proximate to a second end of the cell holder, and a fluid flowing between the inlet and the outlet. A first battery cell may be disposed adjacent to a second battery cell in the cell holder. A structure may be disposed in a gap between the first battery cell and the second battery cell. The structure may direct the fluid towards a first circumferential edge of the first battery cell and a second circumferential edge of the second battery cell.
BOPI
Sede Electrónica
