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1603
resultados
Última actualización
10/11/2025 [07:13:00]
Resultados 1050 a 1075 de 1603
Resumen de: US2025334642A1
A battery system is provided having control, diagnostic, and safety features implemented at the battery cell level. By selectively bypassing one or more battery cells, a battery pack may function as a half-wave generator that produces a half-sine wave output voltage that can be converted into an alternating current using switching circuitry. Moreover, by applying a mixed signal to an individual battery cell, electrochemical impedance spectroscopy can be implemented without the need for bulky external equipment. Further still, safety features, such as battery strain sensors, may be implemented at the battery cell level to provide improved safety information.
Resumen de: US2025333880A1
A method is disclosed for producing carbon fibers with active components such as those for oxygen reduction reactions (ORR). The method includes electrospinning a solution of polyacrylonitrile (PAN) and a transition metal into composite fibers; and annealing the composite fibers in an inert/reducing atmosphere.
Resumen de: US2025333816A1
An object to be solved by the present invention is to provide a method for extracting aluminum from an acid dissolution solution without causing precipitation of aluminum. The method for extracting aluminum of the present invention includes an aluminum extraction step of mixing an acid dissolution solution containing aluminum with an organic solvent containing mono-2-ethylhexyl (2-ethylhexyl)phosphonate, and extracting aluminum from this acid dissolution solution under the condition of an equilibrium pH less than 1.8. If this acid dissolution solution further contains fluorine, the method for extracting aluminum of the present invention includes a fluorine separation and removal step of adjusting the aluminum concentration of the raffinate in an arbitrary range, and adjusting the equilibrium pH to 2 to 7 to generate aluminum hydroxide, thereby coprecipitating fluorine for solid-liquid separation.
Resumen de: US2025333876A1
The present disclosure relates to single-crystal spherical silicon nanoparticles which are monocrystalline are spherical and have an average particle diameter of 1 nm to 20 nm as well as a method of producing the same. The single-crystal spherical silicon nanoparticles of the present invention can produce fluorescence at a high fluorescence quantum efficiency upon excitation by light in a wide range of wavelengths from deep ultraviolet light having a wavelength of 200 nm to 300 nm to visible light, and can increase the conventionally known fluorescence quantum efficiency of silicon nanoparticles from around 1% to 10% or more.
Resumen de: US2025333871A1
An alloy includes an electrodeposited first metal and a second metal, the alloy material having crystal grains. At least 75% of the crystal grains comprise nanotwin boundaries. The first metal includes copper, and the second metal includes a metal includes at least one of cobalt (Co), iron (Fe), or Palladium (Pd).
Resumen de: US2025333842A1
Silicon-carbon composite materials and related processes that overcome the challenges for providing amorphous nano-sized silicon entrained within porous carbon. Agglomerated porous carbon is used during a composite creation process.
Resumen de: US2025337131A1
In a battery, a case has an outer surface and a gas-discharge valve, the outer surface including a first surface and a second surface, the first surface extending in a direction of a plane including a first direction, the second surface being connected to one end portion of the first surface in the first direction, the second surface being substantially orthogonal to the first surface, the gas-discharge valve being provided at the second surface. The electrode assembly and a current collector are joined at a first joining portion, the current collector and an electrode terminal are joined at a second joining portion, and at least one of the first joining portion and the second joining portion is eccentrically located on the second surface side in the first direction.
Resumen de: US2025337130A1
An electrode assembly and a rechargeable lithium battery including the same are disclosed. The electrode assembly can prevent generation of cracks between a current collector region provided with a tab and a current collector region without a tab, thereby improving reliability and lifespan. To this end, the electrode assembly has a structure in which a side surface of the tab is secured to the current collector by a thermoplastic resin.
Resumen de: US2025337128A1
The present disclosure relates to a secondary battery that enables injection of an electrolyte by including an injection port in a positive electrode, provides welding strength for welding the positive electrode terminal, and makes detecting defects easier. In an embodiment the secondary battery comprises a cylindrical can having a through-hole formed therein. An electrode assembly is accommodated in the can, with the electrode assembly including a first tab and a second tab. A current collector plate is accommodated in the can, connected to the first tab, and includes a current collector plate injection hole. A rivet terminal is coupled to the through-hole and electrically connected to the first tab. The rivet terminal includes a rivet injection hole through which an electrolyte may be injected.
Resumen de: US2025337135A1
A bonding method disclosed herein includes: a laser welding step of irradiating a boundary portion between a first member made of a metal and a second member made of a metal with laser, thereby forming a welding bonding part; and an etching step of irradiating a surface of the welding bonding part and its peripheral part with an energy beam with lower output than an output in the laser welding step, thereby forming a plurality of concave parts with a substantially circular shape at the surface of the welding bonding part and its peripheral part.
Resumen de: US2025337136A1
The present disclosure provides a secondary battery, a battery pack, and an energy storage box. The secondary battery includes an end cover assembly. The end cover assembly includes a top cover, a top patch, and an electrode terminal. The end cover assembly is designed to have a more compact structure, which reduces a space occupied, thereby improving a capacity and energy density of the secondary battery.
Resumen de: US2025337101A1
A method for producing a monocell for a planar battery, the monocell including a first and second electrode, each electrode having a coated metal foil portion and a non-coated metal tab, the coated foil portions and the tabs having a predefined position relative to each other, as well as a predefined shape and surface area, wherein the first electrode is sandwiched between two separator sheets attached to each other along an attachment lane running along the perimeter of the coated foil portion of the first electrode except at the position of the tab of the first electrode, so that the separator sheets form a pocket with the coated foil portion of the first electrode inserted therein and a portion of the tab of the first electrode extending out of the pocket, and wherein the second electrode is attached to the pocket.
Resumen de: US2025337040A1
The present disclosure relates to a battery assembly comprising: a case; a cell stack in which a plurality of battery cells are stacked and accommodated inside the case; and a heat dissipation pad disposed between the cell stack and the case and comprising a metal foam layer and at least one insulating layer.
Resumen de: US2025337036A1
A battery pack includes: prismatic battery cells arranged in two linear rows; a cooling plate disposed vertically below the battery cells; a thermal interface material disposed between the battery cells and the cooling plate; a thermal insulation material disposed at vertical bottoms of a linear space between the two linear rows of battery cells; a first cooling fluid channel that is configured to receive a cooling fluid, that extends linearly in the direction of the linear space, and that is disposed vertically above the thermal insulation material; and a second cooling fluid channel that is configured to receive the cooling fluid, that extends linearly in the direction of the linear space and parallel to the first cooling fluid channel, and that is disposed vertically above the thermal insulation material.
Resumen de: US2025337046A1
Immersion cooling systems are provided for managing thermal energy levels within a traction battery pack system. An exemplary immersion cooling system may include an injection shield arranged to subdivide an interior volume of a battery enclosure assembly into a first interior volume section and a second interior volume section. The injection shield may include a plurality of injection holes configured to spray a cooling fluid (e.g., a dielectric fluid) onto portions of a battery module that is housed within the second interior volume section. The immersion cooling system may additionally include a fluid manifold extending outside of the interior volume of the battery enclosure assembly, and one or more runner pipes that fluidly connect the fluid manifold to the second interior volume section. Together, the fluid manifold and the runner pipe may establish a dedicated vent gas exit flow path for expelling battery vent byproducts from the enclosure assembly during a battery thermal event.
Resumen de: US2025337077A1
An assembly structure of a battery connector, a battery unit, and a support structure of a battery unit each including the following: a battery cover storing a battery pack and including a standing wall provided with an opened through-hole extending from the outer side to the inner side; a battery connector including a pilot hole at a position corresponding to the through-hole; a fastener including screw and head portions; and a plate including an outer surface to which the head portion is fixed at a position corresponding to the pilot hole. The battery connector is fastened to the outer side of the standing wall by the fastener with the screw portion passing through the through-hole and the pilot hole from the inner side to the outer side, and a waterproof section disposed between the battery cover and the plate so as to surround the through-hole is further included.
Resumen de: US2025337002A1
A material transferring apparatus for battery manufacturing includes a support unit having a support region for supporting a moving object and having a first contact surface, a moving unit having a second contact surface in contact with the support unit and moving the support unit, and coupling units provided on the support unit and the moving unit, respectively, and contacting each other before the first contact surface and the second contact surface come into contact with each other.
Resumen de: US2025336950A1
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 and the third particle are each in the form of a single particle, and the second particle has a greater average particle diameter than each of the first particle and the third particle.
Resumen de: US2025336949A1
A cathode active material for a lithium secondary battery according to the embodiments of the present disclosure includes composite particles including lithium-transition metal oxide particles, a carbon coating disposed on the lithium-transition metal oxide particles, and a carbon nanotube (CNT) coating formed on the carbon coating, wherein a content of the CNT coating measured through thermogravimetric analysis (TGA) is 0.8% by weight to 3.1% by weight based on the total weight of the composite particles.
Resumen de: US2025336945A1
A rechargeable lithium battery including a positive electrode, the positive electrode including a current collector, a first active material layer on the current collector, and a second active material layer on the first active material layer, wherein the first active material layer and the second active material layer each include a first particle, and the second active material layer further includes a second particle. The first particle is an olivine-based particle, and the second particle is a layered particle.
Resumen de: US2025337001A1
Some embodiments provide a secondary battery manufacturing equipment and secondary batteries manufactured using the same, in which tension of a separator may be maintained constant without compensating for the tension (e.g., with a separate device). When manufacturing an electrode assembly by stacking separators in a zigzag manner, the velocity of a driving roller and a final roller may be synchronized, so that the tension of the separator may be maintained constant without a separate separator tension compensation device. By controlling the design parameters of the secondary battery manufacturing equipment, the residual amount of the separators and the instantaneously required supply amount may be minimized and kept constant even if the size of the electrode assembly varies. Accordingly, there is no need for a separate tension compensation device or length compensation device to control the tension of the separator, thereby simplifying equipment and improving cell alignment precision during high-velocity stacking.
Resumen de: US2025333870A1
A method for the electrochemical recovery of a metal from a spent electrode is provided. The method comprises the steps of providing an electrochemical cell comprising a metal recovery electrode as a working electrode, the spent electrode as a counter-electrode, and an electrolyte between the working electrode and the counter-electrode, and performing cyclic voltammetry on the metal recovery electrode, thereby dissolving the metal from the spent electrode and adsorbing dissolved atoms of the metal on the metal recovery electrode, thereby recovering the metal and forming a composite electrode. The metal recovery electrode comprising a metal compound on a conducting support and the metal compound is made by a method comprising reacting a metal oxalate or an ammonium metal oxalate, wherein the metal is a group 4 to 6 metal, with a chalcogenide or an organochalcogenide.
Resumen de: US2025333375A1
The disclosure relates to the cyanocarbon compositions and processes for producing the same. The cyanocarbon compositions comprise tricyanohexane and one or more coproducts of the tricyanohexane production reaction. Exemplary coproducts include tetracyano compounds, cyanoalkenes, cyanooximes, cyanoamides, and combinations thereof.
Resumen de: US2025333875A1
The present disclosure relates to a method of producing single-crystal spherical silicon nanoparticles which are monocrystalline and spherical and has an average particle diameter of 1 nm to 20 nm. The method includes a step of mixing and reacting a raw material liquid containing silicon halide with a reduction liquid containing an anion of a condensed aromatic compound produced from lithium, sodium or potassium and the condensed aromatic compound. The anion of the condensed aromatic compound is prepared by mixing the lithium, sodium or potassium and the condensed aromatic compound at a temperature of less than 0° C. The single-crystal spherical silicon nanoparticles produced by the method of the present invention can produce fluorescence from blue to red upon excitation by light in a wide range of wavelengths from deep ultraviolet light having a wavelength of 200 nm to 300 nm to visible light, and can increase the conventionally known fluorescence quantum efficiency of silicon nanoparticles from around 1% to 10% or more.
Nº publicación: US2025333306A1 30/10/2025
Solicitante:
JS CHEM CORP [KR]
JS CHEM CORPORATION
Resumen de: US2025333306A1
The present invention relates to a method of preparing high-purity lithium sulfide through wet and dry processes. More particularly, the present invention provides a lithium sulfide preparation method including a wet process of reacting lithium hydroxide (LiOH) with hydrogen sulfide (H2S) gas in an organic solvent and a dry process of reacting a dried reaction product resulting from the wet process with hydrogen sulfide (H2S) gas. The lithium sulfide preparation method enables mass production of lithium sulfide.
BOPI
Sede Electrónica
