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955
resultados
Última actualización
19/07/2025 [07:29:00]
Resultados 125 a 150 de 955
Resumen de: US2025233148A1
Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery. The negative electrode includes a current collector; and a negative active material layer, wherein the negative active material layer includes a first active material layer on the current collector and including a first crystalline carbon, a Si—C composite, and a first binder; and a second active material layer on the first active material layer and including a second crystalline carbon, a Si—C composite, and a second binder, a particle diameter of the first crystalline carbon is smaller than a particle diameter of the second crystalline carbon, and based on the total negative active material layer, an amount of the first binder is larger than an amount of the second binder, an amount of the Si is about 3 wt % or more based on 100 wt % of the negative active material layer.
Resumen de: US2025233121A1
An electrode coating device includes a front surface coating part, which is provided on a traveling path of a current collector, for coating a slurry on the front surface of the current collector, a back surface coating part, which is provided on the traveling path, for coating the slurry on the back surface of the current collector passing through the front surface coating part, and a guide roll including a core part having a rotating shaft, and a surface part surrounding the core part and formed of a material different from that of the core part, and transferring the current collector in a state where the back surface of the current collector faces the back surface coating part. A guide roll is also provided.
Resumen de: US2025233133A1
A positive electrode active material including core particles including layered lithium nickel-manganese-based composite oxide, wherein each core particle is a secondary particle formed by agglomerating a plurality of primary particles, and a crystal size of the primary particle is about 105 nm to about 115 nm.
Resumen de: AU2024287128A1
Abstract The present application relates to a composition for forming a hydrogel as a reinforcement for a cellulose paper battery separator. The composition contains a monomer, a cross-linking reagent, an initiator, and a zinc salt. The monomer is selected from acrylamide, vinyl alcohol, ethylene glycol or chitosan. The cross- linking reagent is selected from N,N’- methylenebis(acrylamide) or glutaraldehyde. The initiator is selected from potassium persulfate, ammonium persulfate or azobisisobutyronitrile. The zinc salt may be selected from zinc sulfate, zinc acetate and zinc chloride. The separator may be fabricated by placing a cellulose paper into a mold, preparing the hydrogel composition by combining the monomer, cross-linking reagent, initiator and a zinc salt in deionized water, applying the hydrogel composition into the mold, covering the lid of the mold with a clipper to prevent air entering, and curing at a controlled temperature and pressure to form the separator. Abstract The present application relates to a composition for forming a hydrogel as a reinforcement for a cellulose paper battery separator. The composition contains a monomer, a cross-linking reagent, an initiator, and a zinc salt. The monomer is selected from acrylamide, vinyl alcohol, ethylene glycol or chitosan. The cross- linking reagent is selected from N,N'- methylenebis(acrylamide) or glutaraldehyde. The initiator is selected from potassium persulfate, ammonium persulfate or azobisisobutyronitri
Resumen de: US2025230050A1
Embodiments described herein relate to anode particles produced in part from discarded graphite particles, and methods of producing the same. In some aspects, a method of forming carbon-coated anode particles can include mixing a first plurality of particles, a second plurality of particles, and a plurality of graphene particles to form a dry powder, the first plurality of graphite particles including particles rejected from a graphite spheronization process, the second plurality of graphite particles including particles rejected from a graphite micronization process, mixing the dry powder with water and a carbon-containing liquid to form a slurry, spray-drying the slurry to form an agglomerated mix, and heating the agglomerated mix to form carbon-coated anode particles. In some embodiments, the spray-drying includes atomizing the slurry to form droplets. In some embodiments, the spray-drying can include heating the droplets in a heated chamber to form dried particles.
Resumen de: US2025230059A1
The present disclosure provides the methods for preparing nickel-rich hydroxide precursor material and nickel-rich oxide cathode material having a homogeneous structure with an element concentration-gradient distribution by utilizing a continuous Taylor-flow reactor, comprising: (1) preparing an aqueous solution A with metal ion raw materials dissolved therein, an aqueous solution B with a manganese source dissolved therein, an aqueous solution C with a precipitant dissolved therein, and an aqueous solution D with a chelating agent dissolved therein; feeding the aqueous solution A, the aqueous solution C and the aqueous solution D into the continuous Taylor-flow reactor to perform a first co-precipitation reaction; (2) feeding the aqueous solution B into the continuous Taylor-flow reactor to perform a second co-precipitation reaction; (3) washing the precipitate obtained from the second co-precipitation reaction and putting the precipitate into an oven to dry the precipitate to fabricate the nickel-rich hydroxide precursor material. The nickel-rich hydroxide precursor material prepared with the method of the present disclosure exhibiting an element gradient distribution with the nickel-rich inner layer and the manganese-rich outer layer may reduce the diffusion impedance of the lithium ions and increase their migration paths, and the nickel-rich oxide cathode material prepared from the nickel-rich hydroxide precursor material may increase the electrochemical performances and
Resumen de: US2025230054A1
An object of the present disclosure is to provide a negative electrode active material for a fluoride-ion battery capable of improving battery capacity, and a method for manufacturing thereof. The negative electrode active material for a fluoride-ion battery of the present disclosure is represented by the following formula (1): Mg1−xMIIIxF2+x (1), wherein, MIII is a trivalent metal, and x is greater than 0 and less than 0.5. The method for the present disclosure for manufacturing a negative electrode active material comprises the following steps: providing raw materials comprising a magnesium fluoride and a fluoride of the trivalent metal, and applying mechanical impact to the raw materials to cause them to react.
Resumen de: US2025233437A1
A battery system according to embodiments of the present invention may include: a battery assembly including a plurality of battery cells; and a battery management apparatus comprising memory and one or more processors configured to collect state information on the battery assembly manage and control the battery assembly based on the collected state information. Here, the one or more processors may be configured to, in a charging mode of the battery assembly, check a charge rate of the battery assembly, and determine whether to initiate a balancing mode for balancing the plurality of battery cells based on the checked charge rate.
Resumen de: US2025233292A1
This application provides a battery and an electrical device. The battery includes a battery cell, a busbar, and an insulation piece. The battery cell includes a shell and an electrode terminal. The shell includes a first wall. The electrode terminal is disposed on the first wall. The busbar is electrically connected to the electrode terminal. The insulation piece is disposed on one side, facing the electrode terminal, of the busbar and covers at least a part of the first wall. The insulation piece includes a first groove recessed along a direction facing away from the first wall. In the battery and electrical device, the first groove is available for accommodating an electrolyte solution leaking from a battery cell.
Resumen de: US2025233233A1
A rechargeable energy storage system includes a housing including a tray and a sidewall structure. A plurality of beam assemblies extend in parallel across the housing, the plurality of beam assemblies each include a bottom cap having a base plate and pair of parallel ribs extending from the base plate. A coolant passage plate is sandwiched between a pair of undulating plates with a first end disposed between the pair of parallel ribs of the bottom cap. The coolant passage plate is connected to a coolant source. A plurality of battery cells are disposed in the housing and in contact with the undulating plates of adjacent beam assemblies.
Resumen de: US2025233293A1
A battery and an electric apparatus are disclosed. The battery includes a plurality of battery cells and a connecting piece, where the battery cells are sequentially stacked, the connecting piece extends in a stacking direction of the battery cells, and the connecting piece is bonded to the plurality of battery cells. The electric apparatus includes the battery described above.
Resumen de: US2025233286A1
A secondary battery having higher reliability is provided. The secondary battery includes a first electrode current collector plate, a second electrode current collector plate, and an electrode wound body. The electrode wound body is disposed between the first electrode current collector plate and the second electrode current collector plate, and has a through hole extending in a height direction. The electrode wound body includes a stacked body that includes a first electrode, a second electrode, and a separator and is wound. The first electrode includes a first electrode current collector and a first electrode active material layer. The first electrode includes a first electrode covered region and a first electrode exposed region. At least a portion of the first electrode exposed region is coupled to the first electrode current collector plate. The second electrode includes a second electrode current collector and a second electrode active material layer. The second electrode includes a second electrode covered region and a second electrode exposed region. At least a portion of the second electrode exposed region is coupled to the second electrode current collector plate. The second electrode current collector plate includes a facing part and a band-shaped part. The band-shaped part includes a projection region including multiple projections, and a flat region. The flat region is positioned at a leading end part, of the band-shaped part, on an opposite side of the projectio
Resumen de: AU2024278623A1
Ref: 20-1485-US A portable medical device is disclosed. The portable medical device may comprise a display, a defibrillator port, a battery unit, and a processor. The processor may be configured to determine a cycle count of the battery unit, wherein the cycle count represents a number of times the battery unit has been charged and determine whether the cycle count satisfies a cycle count threshold. The processor may also be configured to, in response to determining that the cycle count satisfies the cycle count threshold, cause one or more graphical elements to be displayed on the display. Ref: 20-1485-US A portable medical device is disclosed. The portable medical device may comprise a display, a defibrillator port, a battery unit, and a processor. The processor may be configured to determine a cycle count of the battery unit, wherein the cycle count represents a number of times the battery unit has been charged and determine whether the cycle count satisfies a cycle count threshold. The processor may also be configured to, in response to determining that the cycle count satisfies the cycle count threshold, cause one or more graphical elements to be displayed on the display. ec e f : - - p o r t a b l e m e d i c a l d e v i c e i s d i s c l o s e d h e p o r t a b l e m e d i c a l d e v i c e m a y c o m p r i s e a e c d i s p l a y , a d e f i b r i l l a t o r p o r t , a b a t t e r y u n i t , a n d a p r o c e s s o r h e p r o c e s s o r m a y b e c o n f i g u r
Resumen de: AU2024278393A1
A high voltage box includes: a box, a cover plate, and electrical elements received in a receiving space inside the box. A top of the box defines an opening, and the cover plate covers the opening of the box. The box includes a first side panel and a second side panel opposite to the first side panel; the receiving space is defined between the first side panel and the second side panel; the electrical elements include a battery management system, a positive-electrode fuse arranged on a positive-electrode circuit and/or a negative-electrode fuse arranged on a negative-electrode circuit. The battery management system is located on a side of the receiving space near the first side panel; the positive-electrode fuse and/or the negative-electrode fuse is located on another side of the receiving space near the second side panel. A high voltage box includes: a box, a cover plate, and electrical elements received in a receiving space inside the box. A top of the box defines an opening, and the cover plate covers the opening of the box. The box includes a first side panel and a second side panel opposite to the first side panel; the receiving space is defined between the first side panel and the second side panel; the electrical elements include a battery management system, a positive-electrode fuse arranged on a positive-electrode circuit and/or a negative-electrode fuse arranged on a negative-electrode circuit. The battery management system is located on a side of the receiving spac
Resumen de: AU2024373823A1
A battery pack, a power tool, and a connecting device. The battery pack comprises a battery pack body and a battery connecting device. The battery connecting device comprises a device body and multiple battery connecting terminals. The multiple battery connecting terminals are arranged on the device body, and can at least transmit electrical energy; the battery connecting terminals are configured to have a cylindrical structure; and the battery connecting terminals are configured to withstand a maximum current of less than or equal to 400 A.
Resumen de: US2025230057A1
A method for treating a manganese-copper mixed solution is disclosed, including the following steps: adjusting a pH value of the manganese-copper mixed solution to 6.5 to 7 to obtain a solution defined as a first solution; adding an oxidant into the first solution to obtain a solution defined as a second solution, where the oxidant reacts with Mn2+ at a pH value of 6.5 to 7 to generate MnO2; and collecting a first precipitate. This method is time-saving in separating manganese ions, and can recover high-purity manganese ions. The recovered waste liquid is treated by a simple method and causes little pollution to the environment.
Resumen de: US2025230052A1
A silicon-based negative electrode active material, a method for preparing the silicon-based negative electrode active material, and a secondary battery including a negative electrode that includes the silicon-based negative electrode active material. The silicon-based negative electrode active material includes a silicate. The silicate contains an alkaline earth metal element, and the silicon-based negative electrode active material contains both the element K and the element Fe.
Resumen de: US2025229672A1
Provided are a control method for a battery heating system, a battery heating system, and an electric vehicle. The battery heating system includes a supercapacitor and a pulse control unit. The control method includes: obtaining a temperature value and an SOC value of a power battery; and issuing a heating instruction to the pulse control unit when the temperature value is lower than a predetermined temperature threshold and the SOC value is higher than a predetermined charge threshold, to allow the pulse control unit to control, based on the heating instruction, bi-directional energy flow between the power battery and the supercapacitor by means of a pulse current, to heat the power battery.
Resumen de: US2025229650A1
The invention relates to an electrically operated vehicle containing an electrically rechargeable vehicle battery for supplying an electric drive for moving the vehicle; a tank for receiving a liquid or gaseous fuel; and a fuel cell which is operated using fuel from the tank for heating a passenger compartment, vehicle components, and/or the battery of the vehicle. The invention is characterized in that the tank and the fuel cell form modules with which the vehicle is retrofitted.
Resumen de: US2025229636A1
A method and apparatus for diagnosing battery abnormality of an ecofriendly vehicle may include incrementing a count value based on a cell balancing starting voltage deviation which is a voltage deviation of a plurality of cells forming a battery module of the vehicle when a cell balancing mode for adjusting the voltage deviation of the plurality of cells starts and a cell balancing ending voltage deviation which is a voltage deviation of the plurality of cells when the cell balancing mode ends, storing the count value and the identifier or the identification number of the cell having the minimum voltage among the plurality of cells, and detecting cell abnormality based on the count value and the identifier or the identification number of the cell having the minimum voltage.
Resumen de: US2025233242A1
This application discloses a box assembly, a battery, and an electric apparatus. The box assembly includes a frame, where the frame includes a bottom plate and side plates arranged around the bottom plate, and the bottom plate and the side plates jointly enclose an accommodating cavity; and at least one heat exchange beam, where the heat exchange beam is disposed in the accommodating cavity to divide the accommodating cavity into a plurality of accommodating sub-cavities, and a heat exchange passage is provided in the heat exchange beam for circulating a heat exchange medium. The heat exchange beam can improve the overall rigidity of the frame. In addition, the heat exchange passage is provided in the heat exchange beam for circulating the heat exchange medium, so that the heat exchange beam is integrated with the heat exchange function.
Resumen de: US2025233150A1
Provided are graphite particles which can use carbon dioxide as a raw material and can be used as an electrode material. As to graphite particles, an interplanar spacing d 002 based on a diffraction peak corresponding to a lattice plane (002) being measured by a powder X-ray diffraction method is 0.3355 nm or more and 0.3370 nm or less, a primary particle diameter is 50 nm or more and 500 nm or less, a value of 50% of an integrated value in number base particle diameter distribution (a mean particle diameter) is a secondary particle diameter (d50), the secondary particle diameter (d50) is 0.15 μm or more and 1.6 μm or less, and a specific surface area (BET) being calculated from a nitrogen-adsorption amount at 77 K is 10 m2/g or more and 400 m2/g or less.
Resumen de: US2025233152A1
An electrode assembly include a first electrode; a separator; and a second electrode. The first electrode includes a first substrate, a first active material layer including a first front surface active material layer and a first rear surface active material layer respectively formed on a front surface and a rear surface of the first substrate, a functional layer formed on the rear surface of the first substrate, a first finishing tape covering an end portion of the rear surface first active material layer and one end portion of the functional layer, a second finishing tape covering an end portion of the first front surface active material layer, and a third finishing tape covering an end portion of the second finishing tape. Another end portion of the functional layer overlaps the third finishing tape.
Resumen de: US2025233191A1
An electrode assembly includes a separator, a first electrode and a second electrode located with the separator therebetween and wound together with the separator. The first electrode includes a substrate including a body on which a composite layer and an insulating layer are located, and a plurality of tabs extending from one side of the body and contacting the insulating layer. A plurality of cut lines are located parallel to each other in at least one of the plurality of tabs. The plurality of cut lines are located at a distance from an edge of the tab.
Nº publicación: US2025233202A1 17/07/2025
Solicitante:
THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIV IAC [KR]
The Industry & Academic Cooperation in Chungnam National University (IAC)
Resumen de: US2025233202A1
Disclosed are a solid electrolyte for a lithium secondary battery including a substitution element such as gallium (Ga), etc. and a method of manufacturing the same.
BOPI
Sede Electrónica
