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1719
resultados
Última actualización
07/06/2025 [07:24:00]
Resultados 1250 a 1275 de 1719
Resumen de: AU2023384178A1
A Battery Pack The present invention relates to a battery pack (10). The battery pack (10) includes a casing (20) and a plurality of battery cells (12) disposed inside the casing (20). A plurality of conduits (60) is disposed on a bottom portion of the casing (20) and projecting externally of the casing (20). The plurality of conduits (60) is configured to enable a dielectric coolant (40) to flow through the plurality of conduits (60). The battery pack (10) also includes a pump (70) mounted to the casing (20). The pump (70) is configured to circulate the dielectric coolant (40) between the casing (20) and the plurality of conduits (60). The plurality of conduits (60) is configured to dissipate heat from the dielectric coolant (40) to a surrounding atmosphere.
Resumen de: AU2023367150A1
The battery pack according to the present invention comprises: at least one cell assembly comprising a plurality of battery cells; an outer case accommodating the at least one cell assembly and having insertion portions along the lengthwise direction thereof, the insertion portions being provided in a form in which the outer side surfaces of the outer case are recessed inwards; and bar-shaped reinforcement members inserted in the insertion portions.
Resumen de: AU2023360141A1
With the wide usage of Li-ion batteries (LIBs), recycling and reusing LIBs have attracted wide attention. However, due to the low added value and rigorous separation steps, recycling and recovering graphite anode materials are discarded. Although some direct physical recycling processes have been reported, all of them are limited by rigorous separation steps and lab scales. The present invention relates to a method for recovering highly pure graphite from leach residue of spent lithium ion batteries. The process is simple, easy and provides 99.9% pure graphite. Additionally, the method for recovering highly pure graphite is clean, green, environment friendly and commercially feasible.
Resumen de: AU2023379452A1
A power distribution system for an aircraft, comprising a plurality of electric propeller units (EPUs), includes a first paired battery pack unit comprising a first battery electrically connected to a second battery via a first high voltage bus. The first and second batteries are configured to provide power to respectively first and second sets of EPUs of the plurality of EPUs. The system includes a second paired battery pack unit comprising a third battery electrically connected to a fourth battery via a second high voltage bus. The third and fourth batteries are configured to provide power to respectively third and fourth sets of EPUs of the plurality of EPUs. The first high voltage bus and the second high voltage bus are electrically separate from one another.
Resumen de: US2025174722A1
The present application provides a battery, an energy storage device, an electrical system and an energy storage system. The battery of the present application includes a negative electrode sheet and an electrolyte. The negative electrode sheet includes a negative electrode material. When a state of charge of the battery ranges from 95% to 105%, a differential scanning calorimetry curve of a mixture of the negative electrode material and the electrolyte has a first exothermic peak, a second exothermic peak and a third exothermic peak. A peak temperature of the first exothermic peak is T1, a peak temperature of the second exothermic peak is T2, and a peak temperature of the third exothermic peak is T3. The battery satisfies a relationship: 2≤(T2−T1)/(T3−T2)≤4.5. The battery of the embodiments of the present application has good heat resistance and overcharge resistance.
Resumen de: US2025174700A1
A cylindrical battery winding apparatus comprises a pair of separator unwinding parts that unwind separators from separator rolls to separate a positive electrode material and a negative electrode material; a pair of alignment parts including grippers that pull and align one end of the positive electrode material and the negative electrode material respectively cut to a predetermined length; a winding part that stacks the positive electrode material/separator/negative electrode material and winds the stacked materials to form a jelly roll; and a cutting part that cuts the separator and cuts a fixing tape to secure the jelly roll.
Resumen de: US2025174701A1
A winding roll structure configured to implement edge bending of an electrode assembly according to one embodiment of the present disclosure, and wind the electrode assembly including a first electrode plate and a second electrode plate, and a separator disposed therebetween, includes an edge bending unit configured to bend both side edges in a longitudinal direction of the electrode assembly in one direction, and a winding unit configured to wind the electrode assembly that has passed through the edge bending unit, wherein the edge bending unit includes a pinch roller and an anvil roller each extending in a longitudinal direction and arranged in parallel, the pinch roller includes a roller main body, and a pair of enlarged diameter portions provided at both ends of the roller main body and having a larger diameter than the roller main body, the anvil roller is disposed adjacent to the pinch roller between the pair of enlarged diameter portions, and both side edges in the longitudinal direction of the electrode assembly are bent in one direction while the electrode assembly passes between the pinch roller and the anvil roller.
Resumen de: US2025174826A1
Examples of the present disclosure relate to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator includes a separator for a rechargeable lithium battery including a porous base and a coating layer located on at least one surface of the porous base. The coating layer includes a cross-linked product of a composition containing a binder and a cross-linking agent and a filler, the binder includes a (meth)acryl-based binder containing a first structural unit derived from (meth)acrylamide and a second structural unit containing a heterocyclic ketone group. The cross-linking agent includes an aziridine-based cross-linking agent, and the filler has a particle diameter D100 of about 1.0 μm or less.
Resumen de: US2025174669A1
Disclosed is an electrochemical cell comprising: an anode electrode, wherein the anode electrode comprises a conductive host material having a layered or a porous structure and comprising an amount of at least one zinc-alloying metal, wherein the conductive host material is configured to accommodate zinc metal deposition during a plating cycle and wherein the deposited zinc metal is substantially free of dendrites; an aqueous electrolyte; and wherein the anode electrode exhibits at least 50% utilization.
Resumen de: US2025174672A1
Proposed is a method of manufacturing a laminated ceramic all-solid-state battery. The method may include sequentially laminating a first current collector layer, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and a second current collector layer to form a laminate sheet. The method may also include sintering the laminate sheet at a temperature of 500 to 600° C. under a reducing atmosphere. The anode active material layer may contain graphite, and the first and second current collector layers may contain a metal. The method can enable ceramic materials within a battery to be simultaneously sintered at a lower temperature than a conventional ceramic sintering temperature, thus preventing damage to the battery at high temperatures and diversifying the materials constituting the battery.
Resumen de: US2025174662A1
A non-aqueous secondary battery of the present disclosure includes a cathode, an anode, a separator disposed between the cathode and the anode, and a non-aqueous electrolyte solution. The anode is formed by laminating an anode current collector, a binder layer, and an anode mixture layer in this order. The binder layer contains a conductive aid. The ratio of the average length of the conductive aid to the average thickness of the binder layer is 1.8 or more.
Resumen de: US2025174664A1
A positive electrode layer for an all-solid secondary battery, an all-solid secondary battery including the positive electrode layer, a method of preparing the positive electrode layer, and a composition, the positive electrode layer including a positive electrode current collector and a positive active material layer on the positive electrode current collector, wherein the positive active material layer includes a positive active material, a binder, a conducting agent, a sulfide solid electrolyte, and a dispersion medium, the dispersion medium including a compound represented by Formula 1 and a compound represented by Formula 2,R1—C(═O)O—R2 Formula 1in Formula 1, R1 is a C1-C2 alkyl group and R2 is a C7-C9 alkyl group,R2′—OH Formula 2in Formula 2, R2′ is a C7-C9 alkyl group.
Resumen de: US2025174656A1
The present application relates to a negative electrode plate comprising a negative electrode material layer having a structure in which a high compaction region and a low compaction region are continuously and alternately arranged, and the low compaction region has an upper surface width and a lower surface width with a specific width difference. The present application further relates to a preparation method of the negative electrode plate, a secondary battery comprising a battery electrode plate composition of the negative electrode plate, a battery pack comprising the secondary battery and an electrical apparatus.
Resumen de: US2025174666A1
A secondary battery and an electric apparatus are disclosed. The secondary battery includes a negative electrode plate including a negative electrode current collector and a negative electrode film layer with a thickness of H; a first surface away from the negative electrode current collector; and a second surface opposite the first surface. A first region of the negative electrode film layer includes a first active material with a thickness range from the second surface of the negative electrode film layer to 0.3H. The first active material includes a first carbon-based material and a first silicon-based material. The first carbon-based material includes primary particles. The first silicon-based material includes secondary particles formed by aggregating the primary particles. A second region of the negative electrode film layer includes a second active material and has a thickness range from the first surface of the negative electrode film layer to 0.3H.
Resumen de: US2025174658A1
Dry process electrode films, and energy storage devices incorporating the same are described, including a silicon active material. The films may be free standing anode electrode films. Also provided are methods for fabricating such anode electrode films.
Resumen de: US2025174655A1
Disclosed is an anode active material slurry for coating an anode current collector for a secondary Li-ion battery, comprising:i) 80 to 98 wt. % of at least one anode active material;ii) 0 to 5 wt. % of at least one conductive material;iii) 0.1 to 5 wt. % of at least one alkali-swellable emulsion;iv) 0 to 5 wt. % of at least one latex binder;v) 0 to 5 wt. % of at least one further component selected from a specific group, andvi) at least one solvent, in particular water.wherein the at least one alkali-swellable emulsion is an emulsion- or suspension copolymerizate of a nonionic monomer comprising butadiene, styrene or at least one (meth)acrylate monomer, and optionally acrylonitrile, and an olefinically unsaturated carboxylic acid or olefinically unsaturated carboxylic acid salt, wherein the (meth)acrylate monomer is a C1- to C4-alkyl (meth)acrylate monomer, the alkali-swellable emulsion is not hydrophobically modified.
Resumen de: US2025174699A1
Disclosed herein is a sealing apparatus. The sealing apparatus may include a sealing block configured to seal a lead film covering a lead metal and a pouch covering the lead film. The sealing block may include a first sealing surface configured to seal a central portion of the lead film that overlaps the lead metal. The first sealing surface may include a center sealing surface, and a side sealing surface located at two sides of the center sealing surface and stepped with the center sealing surface. The side sealing surface may have a sealing protrusion that protrudes to a predetermined thickness in a direction in which the sealing block applies pressure to prevent the lead film from flowing in a width direction of the sealing surface.
Resumen de: US2025174657A1
A negative electrode for a battery includes a first negative electrode active material layer containing a first graphite having an aspect ratio of 2 to 5 and a second graphite having an aspect ratio of 1 to 1.4, wherein a peak intensity ratio determined through X-ray diffraction (XRD) measurement is 0.03 or more, and a current collector.
Resumen de: US2025174696A1
Provided are a stacking device, a stacking production line and a stacking process, wherein the stacking device comprises a feeding assembly, a conveying assembly, a positioning assembly and a stacking station; the conveying assembly comprises a turntable and a plurality of manipulators arranged on the turntable; the turntable is used for controlling the manipulators to switch among the feeding assembly, the positioning assembly and the stacking station; the stacking production line comprises the high-speed stacking device; and the stacking process is achieved by the high-speed stacking device or the stacking production line, including electrode sheet feeding, electrode sheet positioning, electrode sheet feeding for the second time, stacking, stacking calibration, and unloading. It has the advantages of low device cost and small occupied space, with a reduced personnel cost, and can also realize the uniformity and consistency of stacking without the monitoring by operators.
Resumen de: US2025174646A1
In a nonaqueous electrolyte secondary battery (10) as an example embodiment, a positive electrode (11) includes a positive electrode core (30) and a positive electrode mixture layer (31) formed on the positive electrode core (30). The positive electrode mixture layer (31) contains a positive electrode active material, a polyacrylate, and a sulfated polysaccharide. Carrageenan is a preferable example of the sulfated polysaccharide.
Resumen de: US2025174650A1
A rechargeable lithium battery includes a positive electrode active material including a first positive electrode active material including a first lithium-manganese-rich composite oxide in which (i) a molar ratio of lithium to a total metal of the first lithium-manganese-rich composite oxide excluding lithium is about 1.06 to about 1.2 and (ii) a manganese content based on 100 mol % of the total metal content of the first lithium-manganese-rich composite oxide excluding lithium is greater than or equal to about 30 mol %. The rechargeable lithium battery also includes a second positive electrode active material including a second lithium-manganese-rich composite oxide (i) in which a molar ratio of lithium to a total metal of the second lithium-manganese-rich composite oxide excluding lithium is greater than about 1.2 and less than or equal to about 2, (ii) in which a manganese content based on 100 mol % of the total metal content of the second lithium-manganese-rich composite oxide excluding lithium is greater than or equal to about 30 mol %, and (iii) having an average particle diameter (D50) that is less than an average particle diameter (D50) of the first positive electrode active material.
Resumen de: US2025174697A1
A secondary battery manufacturing apparatus and a secondary battery manufacturing method using the same are disclosed. A secondary battery manufacturing apparatus includes a supply unit configured to supply an electrode plate, a stack table spaced apart from the supply unit and on which the electrode plate is configured to be stacked, a transfer unit movably arranged outside the supply unit and the stack table and configured to transfer the electrode plate supplied from the supply unit to the stack table, a sensing unit configured to sense defects in the electrode plate transferred by the transfer unit, a discharge unit between the supply unit and the stack table and configured to discharge the electrode plate from the transfer unit, and a controller configured to control operations of the transfer unit and the discharge unit based on information sensed by the sensing unit.
Resumen de: US2025174661A1
A positive electrode includes a first active material layer and a second active material layer sequentially laminated on a positive electrode current collector. A conductor contained in the first active material layer is a needle-type conductor and increases the adhesive strength between the positive electrode current collector and the positive electrode active material layer by increasing the content of the needle-type conductor contained in the first active material layer compared to the second active material layer. A lithium secondary battery including the same is also provided.
Resumen de: US2025174694A1
A method for forming an electrochemical device includes forming a first electrolyte layer on a first electrode. A second electrolyte layer is formed on the first electrode, the first electrode positioned between the first electrolyte layer and the second electrolyte layer. A chemical composition and a thickness of the first electrolyte layer and the second electrolyte layer are substantially the same. The method includes heating the first electrolyte layer and the second electrolyte layer and removing the first electrolyte layer. A second electrode is formed on the second electrolyte layer; and the second electrode is heated to form an electrochemical device.
Nº publicación: US2025174645A1 29/05/2025
Solicitante:
WILDCAT DISCOVERY TECH INC [US]
Wildcat Discovery Technologies, Inc
Resumen de: US2025174645A1
It has been discovered that improved disordered rocksalts comprise of Mn are made by method comprising mixing a lithium compound with a metal precursor compound comprised of Mn having an oxidation state of 2 to form a mixture and heating the mixture to a temperature to form a disordered rocksalt structure. The method may realize improved cycle life with altered metal and oxygen redox of the disordered rocksalt.
BOPI
Sede Electrónica
