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1670
resultados
Última actualización
22/03/2026 [07:31:00]
Resultados 325 a 350 de 1670
Resumen de: US20260081175A1
A lithium secondary battery structure having a first electrode including a first conductive current collector having an active material layer formed on at least one surface; a second electrode including a second conductive current collector having an active material layer formed on at least one surface; and a plurality of battery units including a separator formed between active material layers of the first and second electrodes facing each other is provided. The first or second conductive current collector is a metal current collector, or a composite conductive current collector having a metal layer formed on a polymer substrate for each battery unit. The metal current collector to composite conductive current collector ratio within the total battery structure is in a range of 5:1 to 1:5.
Resumen de: US20260081180A1
The current collector includes: a first layer that includes Al; a second layer that is disposed on the first layer and includes a metal element M, the metal element M having an oxidation-reduction potential based on Li of 2.3V or more and not being an amphoteric element; and a third layer that is disposed on the second layer and includes a resin.
Resumen de: US20260081174A1
A secondary battery, a preparation method, and an electric device. The secondary battery includes a positive electrode plate, a separator, a negative electrode plate and an electrolyte, where the negative electrode plate includes a lithium metal sheet and a modification layer disposed on at least one surface of the lithium metal sheet, and the modification layer includes phosphate and lithium metal alloy. The surface of the lithium metal sheet is provided with the modification layer which can effectively conduct lithium ions, and the lithium metal alloy is able to achieve uniform deposition of lithium ions, prevent the growth of lithium dendrites, and improve the electrochemical and safety performance of the battery.
Resumen de: US20260081176A1
The present disclosure relates to an electrode assembly, a secondary battery, and a method for manufacturing the electrode assembly. The electrode assembly according to an embodiment of the present disclosure may include a first electrode, a second electrode, and a separator positioned between the first electrode or the second electrode. At least one of the first electrode and the second electrode may include an insulating layer, a first conductive layer, and a second conductive layer, where the first conductive layer and the second conductive layer are respectively positioned on opposite surfaces of the insulating layer, and one end of each of the first conductive layer and the second conductive layer may extend beyond the insulating layer in a longitudinal direction.
Resumen de: US20260081177A1
An electrode assembly includes a first electrode plate group and a second electrode plate group stacked along a first direction. Along a second direction, a length of the first electrode plate group is greater than a length of the second electrode plate group, the second direction is perpendicular to the first direction. The first electrode plate group includes a first electrode plate closest to the second electrode plate group, where the first electrode plate includes a current collector. The current collector includes a first region and a second region, both sides of the first region are provided with an active material layer, the second region is provided with the active material layer only on a side facing away from the second electrode plate group. The first region at least partially overlaps with the first electrode plate group.
Resumen de: WO2026059159A1
An electrode and a battery of the present invention comprise: an electrode current collector; an electrolyte layer disposed on one surface or both surfaces of the electrode current collector; an electrode active material layer disposed between the electrode current collector and the electrolyte layer; and a support layer disposed between the electrode active material layer and the electrolyte layer and including first inorganic particles and second inorganic particles, wherein the true density of the first inorganic particles may be less than or equal to the true density of the second inorganic particles.
Resumen de: WO2026059404A1
A method for manufacturing a secondary battery, of the present invention, comprises the steps of: forming an anode film by applying an anode slurry to one surface of a current collector and drying same; attaching, to the other surface of the current collector, a cathode film formed by a dry process; and forming a bipolar electrode by simultaneously rolling the cathode film and the anode film.
Resumen de: WO2026059213A1
A battery module according to an embodiment of the present invention includes a battery cell stack in which a plurality of battery cells are stacked; and a module case for accommodating the battery cell stack, the module case including a top plate disposed on the upper side of the battery cell stack. The top plate includes: a mounting hole; and a protruding wall disposed at the edge of one side of the mounting hole and protruding upward. Accordingly, the battery module according to the present embodiment can prevent bending of the top plate and prevent the loss of a wireless communication function of a cell monitoring unit.
Resumen de: WO2026059211A1
The present invention relates to a positive electrode active material capable of improving the performance of a lithium secondary battery, and a positive electrode and a lithium secondary battery comprising same, wherein the positive electrode active material comprises a lithium iron manganese phosphate compound in which the content of manganese (Mn) is less than 50 mol% among all metals excluding lithium, and has an average particle diameter (D50) of 400 nm to 900 nm, the lithium iron manganese phosphate compound including magnesium (Mg) and a doping element (M), wherein the doping element (M) is one selected from the group consisting of aluminum (Al) and vanadium (V), and the content of magnesium (Mg) in the lithium iron manganese phosphate compound is 500 ppm to 1,500 ppm, with respect to the total weight of the lithium iron manganese phosphate compound.
Resumen de: WO2026059210A1
The present disclosure provides an electrode, an electrode assembly and a secondary battery comprising same. The electrode comprises: a substrate made of a metal material; and a mixture layer formed on a portion of the substrate so as to form an uncoated portion at an end portion of the substrate, wherein the uncoated portion can include: a first uncoated portion formed at the leading end of a winding; and a second uncoated portion, which extends from the first uncoated portion, is higher than the height of the first uncoated portion, and includes a plurality of bendable tabs.
Resumen de: WO2026059194A1
The present disclosure provides a secondary battery including a vent plate and a method for manufacturing the secondary battery. A secondary battery according to the present disclosure may comprise: an electrode assembly formed by winding a first electrode, a separator, and a second electrode; a case accommodating the electrode assembly; and a vent plate sealing an opening on one side of the case. The electrode assembly and the vent plate may be electrically insulated, and the center portion of the vent plate may protrude in a direction in which the electrode assembly accommodated in the case is located.
Resumen de: WO2026059429A1
The present disclosure provides a secondary battery and a secondary battery manufacturing method. The secondary battery according to the disclosure comprises: an electrode assembly formed by winding a first electrode, a separator and a second electrode; and a case for accommodating the electrode assembly, wherein: an uncoated portion of the first electrode includes a first core-side cutting section, a first core-side bending section, a first outer-side bending section, and a first outer-side cutting section; and an uncoated portion of the first core-side bending section can be bent in the centrifugal direction of the electrode assembly.
Resumen de: WO2026059192A1
The present disclosure provides a cap assembly and a secondary battery comprising same. The cap assembly may comprise: a base plate having a through-hole; a terminal part having a diameter smaller than that of the through-hole and disposed in the through-hole; and an insulating part disposed between the outer circumferential surface of the terminal part and the inner circumferential surface of the through-hole and coupling the terminal part and the base plate.
Resumen de: WO2026059260A1
The present invention relates to a bipolar electrode, a manufacturing method therefor, and a bipolar secondary battery comprising same, the bipolar electrode incurring reduced damage to an anode mixture layer during a rolling process and including an anode and a cathode that have uniform porosity and are formed on each of two sides of a metal current collector.
Resumen de: WO2026059259A1
An objective of the present disclosure is to provide a secondary battery comprising a vent plate and a method for manufacturing the secondary battery. The secondary battery according to the present disclosure comprises: an electrode assembly formed by winding a first electrode, a separator, and a second electrode; a case having the electrode assembly embedded therein; and a vent plate sealing one side opening of the case, wherein the vent plate may comprise a welding portion where the outer boundary of the vent plate extends in a direction in which the case extends and is coupled to the opening; a first planarization portion connected to the welding portion and formed perpendicularly to the direction in which the case extends; and a second planarization portion which is located at the center of the vent plate and has a step with respect to the first planarization portion.
Resumen de: WO2026059235A1
A secondary battery according to an embodiment of the present invention may comprise: an electrode assembly including a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate; a cylindrical can that accommodates the electrode assembly and is electrically connected to the second electrode plate; a terminal that is provided at one longitudinal end of the can and electrically connected to the first electrode plate; and a fire-extinguishing member provided inside at least one of the two longitudinal ends of the can. According to an embodiment of the present invention, the fire-extinguishing member having a fire-extinguishing function is provided inside the secondary battery, and thus the safety of the secondary battery may be improved.
Resumen de: WO2026059224A1
The present invention relates to a positive electrode slurry composition, a positive electrode, and a lithium secondary battery comprising same and relates specifically to: a positive electrode slurry composition for a lithium secondary battery, which includes a positive electrode active material, a film-forming additive, and a solvent, wherein the film-forming additive is a compound represented by chemical formula 1; a positive electrode for a lithium secondary battery; and a lithium secondary battery comprising same.
Resumen de: WO2026059168A1
A battery pack is provided according to exemplary embodiments of the present invention. The battery pack comprises: a pack housing comprising a base plate; cooling channels, in the base plate, comprising a first sub-channel and main channels supplying cooling water thereto; a first battery cell assembly, on the base plate, overlapping the first sub-channel in a first direction; and a cut-off member in the first sub-channel, wherein the cut-off member comprises a body portion including shape-memory alloy, and may lengthen in a second direction intersecting the first direction when the temperature of the first battery cell assembly rises.
Resumen de: WO2026059325A1
The present invention relates to a positive electrode active material comprising small-particle lithium iron manganese phosphate-based oxide and large-particle lithium iron phosphate-based oxide, wherein the small-particle lithium iron manganese phosphate-based oxide has an average particle diameter (D50) of 1 ㎛ or less and the large-particle lithium iron phosphate-based oxide has an average particle diameter (D50) of 4 ㎛ to 10 ㎛, with the weight ratio of the small-particle lithium iron manganese phosphate-based oxide to the large-particle lithium iron phosphate-based oxide ranging from 75: 25 to 98: 2.
Resumen de: WO2026059293A1
The present invention relates to a positive electrode active material, and a lithium secondary battery using a positive electrode comprising the positive electrode active material. More specifically, the present invention relates to a positive electrode active material, and a lithium secondary battery using a positive electrode comprising the positive electrode active material, the material having a coating part that includes barium (Ba) and sulfur (S), which is present on at least a portion of the surface of a lithium transition metal oxide, so that lithium impurities can be reduced without washing, and enabling conductivity to be improved and side reactions with an electrolyte solution to be suppressed by means of the coating part including barium (Ba) and sulfur (S).
Resumen de: WO2026059287A1
The present disclosure provides a secondary battery and a method for manufacturing same. The secondary battery according to the present disclosure may comprise: an electrode assembly in which a first electrode, a separator, and a second electrode are sequentially stacked; a case accommodating the electrode assembly and having an electrolyte injection hole formed through one side surface thereof; and a rivet for sealing the electrolyte injection hole, wherein the rivet may comprise: a body portion in contact with the outer surface of an area on the case where the electrolyte injection hole is formed, and a leg portion in contact with the inner surface of the area on the case where the electrolyte injection hole is formed.
Resumen de: WO2026059294A1
The present invention relates to a cathode active material and a lithium secondary battery using a cathode including the cathode active material. More particularly, the present invention relates to: a cathode active material in which barium (Ba) and sulfur (S) are included at predetermined contents, enabling lithium impurities to be reduced without a washing process, and furthermore enabling improvement in the conductivity of the cathode active material to enhance capacity per unit volume; and a lithium secondary battery using a cathode including the cathode active material.
Resumen de: WO2026059295A1
The present invention relates to a positive electrode active material, and a lithium secondary battery using a positive electrode comprising the positive electrode active material. More specifically, the present invention relates to a positive electrode active material, and a lithium secondary battery using a positive electrode comprising the positive electrode active material, the material comprising barium (Ba) and sulfur (S) so that lithium impurities can be reduced without washing, and enabling the conductivity of the positive electrode active material to be improved, thereby causing the capacity per unit volume to increase.
Resumen de: WO2026059178A1
The apparatus for treating a battery according to an embodiment of the present invention comprises: a jig having an inner space into which a battery is inserted; a punching unit for forming reaction holes in the battery by moving in a direction going toward the jig; and a driving unit for moving the jig and the punching unit, wherein the jig may be configured to restrict the movement of the battery submerged in a discharging material.
Nº publicación: WO2026059413A1 19/03/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
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Resumen de: WO2026059413A1
An anode composition according to an embodiment of the present invention comprises a silicon-based active material and a carbon-based active material, and simultaneously satisfies an optimal sphericity ratio represented by formula (1) and an optimal particle diameter ratio represented by formula (2). Formula (1): 0.7 ≤ X1/Y1 ≤ 1.5 Formula (2): 0.08 ≤ X2/Y2 ≤ 0.5. In formula (1), X1 denotes the sphericity of the silicon-based active material, and Y1 denotes the sphericity of the carbon-based active material, and in formula (2), X2 denotes an average particle diameter (D50) of the silicon-based active material, and Y2 denotes an average particle diameter (D50) of the carbon-based active material.
BOPI
Sede Electrónica
