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1452
resultados
Última actualización
04/05/2025 [07:15:00]
Resultados 225 a 250 de 1452
Resumen de: US2025141064A1
An electrode, an electrode assembly, and a battery are disclosed. An electrode includes a first coated portion including an active material on a first substrate, and a first electrode terminal which is formed by cutting a portion of a first uncoated portion of the first substrate on which the active material is not applied and has a shape of which an end portion is configured to be exposed or extend to an outside of a battery.
Resumen de: US2025140793A1
A positive electrode active material contains particles of compound A having a composition represented by LixNiaCobMncOy, and particles of compound B having a composition represented by MdOe, wherein, in the particles of compound B, an amount of an element having an ion radius α of 0.60 Å≤α≤1.38 Å is greater than or equal to 45 mol %, and surface area proportion X of the particles of compound B, with respect to a total of the particles of compound A and the particles of compound B, is 0.8%≤X≤19.6%. (Note that 0.1≤x≤1.5, 0.5≤a≤1.0, 0≤b≤0.3, 0≤c≤0.3, a+b+c=1.0, 1.5≤y≤2.1, 0.001≤d≤0.2 and 0.002≤e≤0.4, and M represents at least one element selected from the group consisting of Ti, Zr, Ta, Pr, K, La, Ba, Y, Sr, Ce, Se, Hf and Rh.)
Resumen de: US2025140809A1
The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, wherein through surface modification of the lithium manganese-based oxide, the surface resistance of the lithium manganese-based oxide is reduced, thereby improving the lifetime characteristics of the lithium secondary battery, which uses the lithium manganese-based oxide as a positive electrode active material, and a lithium secondary battery including the same.
Resumen de: US2025140786A1
The non-aqueous electrolyte secondary battery according to one aspect of the present disclosure comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein: the negative electrode has a negative electrode current collector and a negative electrode mixture layer formed on the surface of the negative electrode current collector; the negative electrode mixture layer has a first negative electrode mixture layer facing the negative electrode current collector and a second negative electrode mixture layer facing the positive electrode; the negative electrode mixture layer includes a particulate negative electrode active material; at least the second negative electrode mixture layer includes carbon nanotubes; and when the interparticle porosity of the negative electrode active material in the first negative electrode mixture layer is S1, and the interparticle porosity of the negative electrode active material in the second negative electrode mixture layer is S2, 3.5≤S2/S1≤5.0 is satisfied.
Resumen de: US2025140798A1
A cathode mixture, a cathode including the same, an all-solid-state secondary battery including the cathode, and a method of manufacturing the all-solid-state secondary battery are provided. The cathode mixture includes a lithium sulfide composite and a solid electrolyte, wherein, in an X-ray diffraction analysis spectrum, a first peak that appears (e.g., exists) at a diffraction angle 2θ of about 26° to about 27.5° has a first intensity (IA), a second peak that appears (e.g., exists) at a diffraction angle 2θ of about 30.02° to about 30.06° has a second intensity (IB), and an intensity ratio ((IB/IA) of the second intensity to the first intensity satisfies 1
Resumen de: US2025140779A1
A method for producing a first electrode of a battery cell including producing a main body of the first electrode having an active material of the first electrode and a copolymer and wetting the main body with a liquid electrolyte and forming a gel polymer electrolyte as a result of reaction of the copolymer with the liquid electrolyte and forming the first electrode.
Resumen de: US2025141050A1
An elastic sheet for an all-solid-state battery and an all-solid-state battery including the elastic sheet for an all-solid-state battery, the elastic sheet for an all-solid-state battery includes a (meth)acrylate copolymer; an aluminum hydroxide; and inorganic nanotubes, and the all-solid-state battery includes the elastic sheet; and an electrode assembly, wherein the electrode assembly includes a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode, and the elastic sheet is outside at least one of the positive electrode and the negative electrode.
Resumen de: US2025141056A1
A battery module includes a cell assembly, a first component, and a first conductive member. The cell assembly includes a plurality of cells, the cell includes a cell shell and an electrode terminal, and each electrode terminal includes a welding portion. The plurality of cells include a first cell and a second cell. The first component and the cell shell are arranged along a first direction. The first conductive member is disposed on a side of the first component, the side of the first component being a side oriented away from the cell shell. The first conductive member includes a first connection portion and a second connection portion. The first connection portion is welded to the electrode terminal of the first cell. Along the first direction, a projection of the welding portion of at least one second cell overlaps a projection of the first conductive member.
Resumen de: US2025141052A1
A bus bar 20 is a plate-shaped bus bar 20 that connects a plurality of power storage elements 11, and includes a plurality of connection portions 21 connected to electrode terminals 12A and 12B of the plurality of power storage elements, and one or more intermediate portion 22 that couples the adjacent connection portions 21, the connection portions 21 include electrode welding portion 23 disposed so as to respectively oppose the electrode terminals 12A and 12B and welded to the electrode terminals 12A and 12B, the intermediate portion 22 is provided with one or more slit 24, and the slit 24 has a shape elongated in an arrangement direction in which the connection portions 21 are arranged side by side and has a predetermined dimension in a width direction orthogonal to both the arrangement direction and an opposing direction in which the electrode welding portions 23 opposes the electrode terminals 12A and 12B.
Resumen de: US2025141045A1
A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. For example, in an embodiment, provided is a separator for a rechargeable lithium battery including a heat resistant layer and an adhesive layer which are sequentially formed on at least one surface of a substrate, wherein the heat resistant layer includes a ceramic, the adhesive layer includes an adhesive binder and an organic filler, and the adhesive binder includes a polymer having an interpenetrating polymer network (IPN) structure.
Resumen de: US2025141065A1
A battery includes a layer-type electrode body, a laminate exterior body, a positive electrode tab, and a negative electrode tab. In the electrode body, a positive electrode sheet and a negative electrode sheet are alternately layered in a layering direction via a separator sheet. The positive electrode tab protrudes from the laminate exterior body toward one side in a first direction orthogonal to the layering direction. The negative electrode tab protrudes from the laminate exterior body toward the one or another side in the first direction. The electrode body has an overlap region in which only plural separator sheets overlap at both edge regions in a second direction orthogonal to the layering direction and to the first direction. At least one of the two overlap regions has plural welded portions at which the plural separator sheets are welded. The plural welded portions are discretely formed along the first direction.
Resumen de: US2025141063A1
A battery cell includes a housing enclosing an anode and a cathode, and an electrode assembly disposed in the housing, the electrode assembly including a plurality of electrode layers, each of the plurality of electrode layers having a respective tab configured to electrically connect the plurality of electrode layers to one another. A first electrode layer includes a first tab, the first tab being offset from another tab of another electrode layer.
Resumen de: US2025141060A1
Provided are a pole piece, a core, and a cell. The cell includes the pole piece. The pole piece includes a pole piece body and tabs. Multiple tabs are disposed on an edge of the pole piece body and at intervals in a first direction. A notch is formed at the end of each tab facing away from the pole piece body.
Resumen de: US2025141059A1
An electrode assembly includes at least two electrode plates stacked on each other; the first electrode plate is provided with a first groove, and the first current collector is connected to a first tab in the first groove; the second electrode plate is provided with a first avoidance groove, and the first avoidance groove and the first groove are disposed opposite to each other along a stacking direction of the electrode plates; and the first tab is completely covered by a projection of the first avoidance groove on the first electrode plate. Due to arrangement of an avoidance groove, an increase in a thickness of an electrode assembly caused by a tab may be reduced, so that the thickness of the electrode assembly can be reduced, reducing a volume of the electrode assembly, and further improving an energy density of a battery.
Resumen de: US2025141072A1
A power storage device comprising: an electrode body that includes electrodes; a current collector that extends from the electrodes; an electrode terminal that is electrically connected to the electrode body via the current collector; an exterior film that is wrapped around the electrode body in such a manner as to have an opening; and a lid body that is disposed in the opening, wherein the lid body covers at least a part of the current collector.
Resumen de: US2025141068A1
An energy storage battery comprising: an electrochemical cell; an electrical collector which is coupled to an end of the electrochemical cell; a container which has a first wall and houses, on the inside, the electrochemical cell so that the electrical collector is arranged close to the first wall; an outer body, which constitutes an electrical pole of the battery and is arranged on an outer surface of the first wall; and a weld which establishes an electrical connection between the electrical collector and the outer body; wherein the weld is at least partially arranged on the outside of the container.
Resumen de: US2025140782A1
Method for restoration performances of aged nickel-rich NMC cathode material for lithium-ion secondary battery, the method including: forming a cathode with the aged nickel-rich NMC cathode material and carbon black; and exposing the cathode to diethyl phosphoramidate at an exposure temperature below 160° C. so as to obtain a lithium phosphate protective layer on the cathode.
Resumen de: US2025140796A1
An active material layer is provided with at least one first pore structure, and the active material layer satisfies the following conditions: (a) 0≤M/d≤0.5, where M is a mass percentage of the first active material in the active material layer, and d is a ratio of a depth of the first pore structure to a thickness of the active material layer; and (b) −1%≤0.2M−S≤3%, where S is a porosity of the active material layer. Adding the first active material with a larger gram capacity can increase the capacity of the electrochemical apparatus.
Resumen de: US2025140797A1
This application discloses a positive electrode plate, an electrode assembly, a battery cell, a battery, and an electric device. The positive electrode plate includes a positive electrode current collector and a positive electrode active substance layer located on a surface of the positive electrode current collector. The positive electrode active substance layer includes a Li-containing active material and a Na-containing active material, where a mass ratio of the Na-containing active material and the Li-containing active material is P1, satisfying 0.02≤P1≤50. Having a positive electrode active substance layer that employs a combination of Li-containing and Na-containing active materials, the positive electrode plate can have both high energy density and high low-temperature capacity retention rate.
Resumen de: US2025140799A1
A lithium metal battery may include an anode current collector, a protective film on the anode current collector, a separator, a gel polymer electrolyte, and a cathode, wherein the lithium metal battery may further include an anode active material layer between the anode current collector and the protective film or is free of the anode active material layer, the protective film includes boron nitride (BN) and a binder, and the gel polymer electrolytes contains a gel polymer, BN, a nitrile-based compound, and a liquid electrolyte.
Resumen de: US2025140807A1
A secondary cell comprising an anode, a cathode, an electrolyte, and optionally a separator, characterized in that the anode comprises a substrate and a lithium ion storage layer comprising particles, wherein the lithium ion storage layer is deposited on the substrate; a method for its manufacturing; and a vehicle comprising such secondary cell.
Resumen de: US2025141043A1
The composite diaphragm for a zinc secondary battery, including: a base diaphragm and a conductive film for the zinc secondary battery, the conductive film being connected to one end of the base diaphragm. The conductive film includes a porous polymer film, and pores of the porous polymer film are filled with conductive compositions, the conductive compositions including 1-10 parts by weight of a conductive agent and 0.1-1 part by weight of an additive. The conductive agent includes at least one of graphite, conductive carbon black, acetylene black, or a graphene carbon nanotube; and the additive includes at least one of a tin powder, a tin dioxide powder, a bismuth powder, a bismuth oxide powder, an indium powder, an indium oxide powder, a lead powder, a lead oxide powder, a cadmium powder, or a cadmium oxide powder.
Resumen de: US2025141051A1
A secondary battery includes a positive plate, a negative plate, a porous separator, and a non-aqueous electrolyte. In the secondary battery, lithium metal deposits on the negative plate during charging, and lithium metal dissolves in the non-aqueous electrolyte during discharge. The secondary battery includes: a spacer interposed between at least one of electrode plates of the negative plate and the positive plate and the separator to form a space between the electrode plate and the separator; and a low porosity portion that has a smaller porosity than the separator and that is fitted into the separator in an area where the separator and the spacer overlap when viewed from a laminating direction of the separator and the electrode plate.
Resumen de: US2025141042A1
Described herein is a lithium-ion battery comprising a cathode current collector, a cathode, a paper separator having a surface coated with an anti-shorting layer, an anode, and an anode current collector, wherein the cathode current collector is in contact with the cathode, the cathode is in contact with the paper separator, the paper separator is in contact with the anode, and the anode is in contact with the anode current collector. The lithium-ion battery can be fabricated by printing a cathode ink onto a first side of a paper separator having a surface coated with Al2O3, printing an anode ink onto a second side of said paper separator, printing a cathode current collector ink on the cathode, and printing an anode current collector ink on the anode.
Nº publicación: US2025141039A1 01/05/2025
Solicitante:
EAGLEPICHER TECH LLC [US]
EaglePicher Technologies, LLC
Resumen de: US2025141039A1
A venting system for a battery includes a venting material disposed proximate to each cell of a plurality of electrochemical cells of the battery, the venting material configured to allow materials ejected due to a thermal event to flow through the venting material. The system also includes a venting device disposed in a fixed position relative to the venting material and the plurality of cells, the venting device including a structure for each cell. The structure includes a wall surrounding an area corresponding to a respective cell and extending away from the respective cell, the wall defining a venting path configured to direct ejected materials away from the respective cell.
BOPI
Sede Electrónica
