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1452
resultados
Última actualización
04/05/2025 [07:15:00]
Resultados 1025 a 1050 de 1452
Resumen de: US2025132392A1
A lithium-ion secondary battery having improved coulombic efficiency. A lithium ion secondary battery comprises, a negative electrode active material layer, a separator layer, and a positive electrode active material layer in the order mentioned, wherein the negative electrode active material layer comprises a silicon-based negative electrode active material, and wherein the negative electrode active material layer, the separator layer, and the positive electrode active material layer are impregnated with an electrolyte solution, wherein the electrolyte solution comprises an ionic liquid and a lithium ion, wherein the ionic liquid comprises a phosphonium ion and a bis(fluorosulfonyl)imide ion.
Resumen de: US2025128446A1
A notching apparatus for a secondary battery includes a lower body configured to support an electrode plate which includes a first area coated with an active material and a second area not coated with the active material, the electrode plate to be transferred in a first direction, an upper body configured to vertically move above the lower body, a die on the lower body and arranged to face the second area, a punch hole passing through the die and including a first punch hole, a second punch hole, and a third punch hole sequentially arranged in the first direction, and a punch on the upper body, insertable into the punch hole as the upper body moves downward, and configured to cut the second area.
Resumen de: US2025128445A1
A secondary battery electrode notching apparatus, including a die configured to support a secondary battery electrode including a composite portion coated with an electrode active material and an uncoated portion not coated with the electrode active material; a composite portion stripper configured to move toward the die and press the composite portion into close contact with the die; an uncoated portion stripper configured to move toward the die, press the uncoated portion into close contact with the die, and including an elastic pad formed of an elastic material and configured to elastically deform to make surface contact with the uncoated portion; and a punch configured to move toward the die and cut the uncoated portion so that scrap for disposal is formed from the uncoated portion.
Resumen de: US2025129235A1
A curable composition and a use thereof. As the curable composition is applied to a product that generates heat during the driving or maintenance process, it is possible to provide a curable composition that can be used as a material capable of treating the heat. The curable composition is applied to a product in which a plurality of elements generating heat are integrated, whereby it can efficiently treat the heat generated by the element while maintaining a uniform temperature of the product. In addition, even when the abnormal heat, explosion or ignition occurs in any one of the plurality of elements, the curable composition is applied to such a product, so that the effect of such heat, explosion or ignition to other adjacent elements can be prevented or minimized. The curable composition of the present application can also stably perform such a function over a long period of time.
Resumen de: US2025128353A1
Discussed are a welding device and a welding method that may improve welding efficiency during a battery manufacturing process, and a battery manufacturing device and a vehicle manufacturing device including such a welding device. A welding device can include a laser irradiation unit configured to irradiate a laser; and a laser power control unit configured to control the laser irradiation unit to irradiate the laser with the peak power and the laser with the base power to a welding portion.
Resumen de: US2025128352A1
A method for laser welding a metal foil stack to a metal substrate includes clamping the foil stack against a support surface of a substrate and irradiating the stack with a beam of laser pulses to weld the foils to the substrate. The beam is a composite beam including a center beam and a surrounding annular beam. An initial series of the laser pulses are incident on the stack at mutually distinct locations on a top surface of the stack, and a subsequent series of the laser pulses are incident on the stack at mutually distinct locations on a side of the stack. The resulting weld nuggets penetrate deeply into the stack, with an average penetration depth that exceeds an average pitch between the weld nuggets. The method is capable of welding more than 100 foils to the substrate. Welded assemblies have been demonstrated to withstand large shear forces.
Resumen de: US2025132407A1
Testing device for testing segments that are suitable for forming a cell stack for the energy cell producing industry, wherein:a conveying apparatus with a plurality of receiving portions is provided for receiving and transporting a segment in each case, whereinthe receiving portions are movable relative to a stationary part of the testing device by a movement of the conveying apparatus, characterized in thatthe receiving portions each comprise at least two contact surfaces for contacting, electrically and/or by signal, a segment received in the respective receiving portion, whereinat least two of the contact surfaces of one of the receiving portions can be connected to at least one measuring device by means of a switching matrix.
Resumen de: US2025132420A1
The present disclosure relates to a thermally controlled energy storage device for electric vehicles, having high thermal evacuation capabilities.The device includes:a plurality of electrical cellsa first heat exchange device comprising a heat pipe in heat exchange capacity with one side of the cells and a cold source of a second heat exchange device, the cold source comprising at least two cold plates.The second heat exchange device comprises at least one pulsed heat pipe having:a first wing extending under a condensation part of the gravity heat pipe and in heat exchange capacity with part of the cell edgea second wing extending in exchange capacitywith at least one of the cold plates;a web connecting the wings.
Resumen de: US2025132591A1
A battery pack configured to be capable of supplying power to a power tool. The battery pack includes a housing assembly; multiple cells disposed in the housing assembly; a first interface configured to be connectable to a first charging device and configured to be capable of supplying power to the power tool; a second interface configured to be connectable to a second charging device; and a power control module configured to be connected to the second interface. The power control module is used for changing the charge power and/or discharge power of the second interface according to the temperature of the battery pack.
Resumen de: US2025132408A1
A temperature sensing member is located between two adjacent battery cells, and includes a main body part arranged in parallel to one surface of the battery cell, and a temperature measuring unit mounted on the main body part and measuring the temperature of the battery cell. The main body part has a plate shape. The temperature measuring unit is inserted into one side of the main body part.
Resumen de: US2025132456A1
A battery pack with a double cover includes a plurality of battery modules; and a case accommodating the battery modules, the case includes the double cover disposed at an upper portion of the case, and the double cover includes a first lid disposed above the battery module and having a through hole; and a second lid above the first lid and spaced apart from the first lid.
Resumen de: US2025132451A1
A power storage pack includes: at least one power storage block including at least one power storage device including an exhaust valve; pack case accommodating the at least one power storage block and including an exhaust port; hollow member interposed between pack case and the at least one power storage block, a part of the hollow member facing the exhaust valve of the at least one power storage device; and a resin filler interposed between the at least one power storage device and hollow member. Hollow member includes opening and an outer surface any of which is connected to exhaust port of pack case.
Resumen de: US2025132314A1
Object To provide a secondary battery material that is used in a lithium ion battery, a negative electrode active material including the secondary battery material, and a secondary battery including the negative electrode active material. The secondary battery material gives a secondary battery having high charge and discharge capacity, initial efficiency, and capacity retention rate as a whole and having an excellent balance of these characteristics.SolutionA secondary battery material contains Si (silicon), O (oxygen), and C (carbon), and the content ratio x of O to Si satisfies 0.1≤x≤2, and the content ratio y of C to Si satisfies 0.3≤y≤11.
Resumen de: US2025132307A1
The composite cathode active material particles for a lithium ion battery of the present disclosure have a cathode active material and lithium alloy particles having a lithium alloying potential of 0.5 V (vs Li/Li+) or more and/or metal particles generated by desorption of lithium from the lithium alloy particles, and the lithium alloy particles or the metal particles are dispersed in the cathode active material.
Resumen de: US2025132308A1
A negative electrode has an active material layer including active material particles, carbon nanotubes (CNTs), and a first binder. The active material particles include metal-based active material particles and carbon-based active material particles. An average length of the CNTs determined by analysis of a scanning transmission electron microscope image of the active material layer is 1.5 μm or more. At least part of the first binder is not mixed with the CNTs and covers at least part of a surface of the active material particle. The CNTs include first CNTs adhered to and lying over the first binder, and second CNTs each connecting a pair of the active material particles to each other.
Resumen de: US2025132303A1
A microstructure is upscaled to generate a coarsened heterogeneous spatial distribution of porosity and a set of porosity dependent constitutive relationships. A three dimensional (3D) microstructure model, bulk material properties, and/or porosity is received for anode, cathode, and separator battery components. A coarsened porosity model with emergent properties is calculated from the battery component microstructures as a function of the porosity. Bruggeman coefficients for each battery component sub region are calculated from the effective ionic conductivity, electric and thermal conductivity, and ionic diffusivity. A heterogeneous mesoscale 3D battery model is created by combining the anode, cathode, and separator materials into a single cell structure and separately partitioning each into coarse voxels to create a 3D model of porosity.
Resumen de: US2025132316A1
The invention relates to a secondary cell comprising an anode, a cathode, optionally a separator, and an electrolyte, characterized in that the anode comprises particles in multiple layers.
Resumen de: US2025132390A1
The present application provides an electrolytic solution for magnesium batteries, a method for preparing the same, and a magnesium battery, comprising a non-aqueous solvent and an electrolyte salt, wherein the non-aqueous solvent is selected from one or more of imidazole ionic liquids, pyrrole ionic liquids, piperidine ionic liquids, ether compounds, ester compounds, pyridine compounds, nitrile compounds, sulfone compounds, or ketone compounds; the electrolyte salt has a chemical formula MgmLinXo(HMDS)2m+m−oRp·Mq. The electrolytic solution for magnesium batteries provided by the present application is endowed with good stability, strong water resistance and impurity resistance, and excellent electrochemical performance under the mutual synergistic effect among the components, and excellent electrochemical performance under the mutual synergistic effect among the components, and at the same time, the electrolytic solution can promote reversible deposition-dissolution of magnesium, reduce the over-potential, inhibit formation of a passivation layer of magnesium salts on the surface of the anode, and increase the charging-discharging specific capacity and cycling stability of the magnesium battery.
Resumen de: US2025132321A1
The present invention relates to a silicon composite anode material with controlled particle size distribution, a manufacturing method thereof, and a lithium-ion battery containing the same. More specifically, the present invention relates to a silicon composite anode material with controlled particle size distribution, which exhibits stress relaxation of each particle through distribution of various particle sizes and thus prevents mechanical destruction even under a high-pressure condition during a calendering process, a manufacturing method thereof, and a lithium-ion battery containing the same. The silicon composite anode material comprises a graphite mixture; a silicon nanolayer coated on the graphite mixture; and a carbon coating layer coated on the silicon nanolayer.
Resumen de: US2025132398A1
An aqueous iodine-based battery based on multi-electron transfer includes a positive electrode, a negative electrode, a current collector, an electrolyte, and a separator. A porous carbon felt is used as the electrode material on both sides of the positive and negative electrodes, and a polymer film is used as the membrane material. Both the positive and negative electrolytes are stored in the porous carbon felt electrodes. Both the positive and negative electrolytes are acidic mixed solutions containing I− and Cd−; during charging, I− at the positive electrode is charged to Cd(IO3)2, which realizes a electrochemical reaction of six-electron transfer, and the negative electrode involves the deposition of Cd− as a Cd metal; and the process is reversed during discharging. In order to improve the kinetics and reversibility of the multi-electron transfer process, additional additives are added to the solution to improve the electrochemical reversibility of the overall reaction.
Resumen de: US2025132318A1
Cathode materials, batteries, and methods of forming one or more electrodes for batteries are disclosed. In some embodiments, a coated lithium battery cathode material includes coated single crystalline primary particles, the coated single crystalline primary particles including single crystalline primary particles of a lithium transition metal oxide, a first sub-nanoscale lithium metal oxide coating on the single crystalline primary particles wherein the first sub-nanoscale lithium metal oxide is less than 1 nm thick, and a carbon coating disposed on the first sub-nanoscale lithium metal oxide coating to form coated single crystalline primary particles.
Resumen de: US2025128316A1
A material band riveting device includes a feeding structure, a riveting structure and a material pulling structure. The riveting structure is disposed to one end of the feeding structure. The riveting structure has a riveting mold, a plurality of locating pins, two first riveting pins, two second riveting pins and two pressing blocks. The plurality of the locating pins are partially disposed in the riveting mold. The two first riveting pins are partially disposed in the riveting mold. Each first riveting pin has a first riveting portion. The two second riveting pins are partially disposed in the riveting mold. Each second riveting pin has a second riveting portion. The material pulling structure is disposed under the feeding structure.
Resumen de: US2025128310A1
A device for manufacturing a battery, the device including a lower die configured to support an electrode, an upper die above the lower die and connected to the lower die while vertically spaced therefrom, a lift configured to move the upper die upward or downward, a punch on the upper die and inserted into the lower die to perform machining of the electrode, a sensor configured to detect a state of the punch, a controller configured to receive a detection signal of the sensor and monitor an insertion amount of the punch and a corrector configured to correct a height of the punch according to a control signal of the controller.
Resumen de: US2025128357A1
The present invention relates to an electrode plate manufacturing apparatus including a first laser radiation unit that radiates a first laser beam in a first direction perpendicular to an electrode film located between rollers of a transfer device to notch at least a portion of the electrode film and a second laser radiation unit that radiates a second laser beam to a notched area of the electrode film, which is notched by the first laser radiation unit, to remove a material of a surface of the electrode film melted by the first laser beam.
Nº publicación: US2025128373A1 24/04/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
Resumen de: US2025128373A1
A separator clamping device includes a body portion including a vacuum passage, the vacuum passage being connected to a vacuum device, a first separator fixing portion on an upper surface of the body portion, the first separator fixing portion being connected to the vacuum passage and being configured to fix a separator onto the upper surface of the body portion by a vacuum suction, and a second separator fixing portion on a side surface of the body portion, the second separator fixing portion being connected to the vacuum passage and being configured to fix the separator onto the side surface of the body portion by a vacuum suction.
BOPI
Sede Electrónica
