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1812
resultados
Última actualización
21/06/2025 [07:12:00]
Resumen de: US2025201922A1
An electrolyte for a lithium secondary battery including an organic solvent, a lithium salt, and a phosphate-based additive including a compound represented by Formula 1. A lithium secondary battery according to embodiments of the present disclosure may include a cathode, an anode opposite to the cathode, and an electrolyte including the phosphate-based additive represented by Formula 1.
Resumen de: US2025201906A1
A polymer solid electrolyte and a preparation method thereof are provided. The polymer solid electrolyte comprises a polymer containing cross-linkable functional groups; a lithium salt; and a solvent including a first solvent and a second solvent, wherein the polymer solid electrolyte comprises a cross-linked structure and amorphous polymer chains containing the cross-linkable functional groups, and the cross-linked structure includes (a) cross-linkages between the cross-linkable functional groups, (b) cross-linkages between the cross-linkable functional groups and the first solvent, and (c) linkages between the cross-linkable functional groups and the lithium salt.
Resumen de: US2025201902A1
A lithium secondary battery includes a positive electrode including a positive electrode active material layer and a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material, and the negative electrode active material consists of silicon. In a graph of capacity-voltage measured by manufacturing a half-cell including the positive electrode and a lithium metal electrode and then discharging the half-cell at a constant current of 0.1 C, an inflection point appears in a region in which a voltage is 3.3 V to 3.7 V. The capacity of the positive electrode at the inflection point is from 3% to 25% of the capacity of the positive electrode at a final charge voltage.
Resumen de: US2025201837A1
A positive electrode for a nonaqueous electrolyte energy storage device according to one aspect of the present invention includes a positive active material layer containing: first positive active material particles having a Feret diameter of 5 μm or less in a projection image obtained by scanning electron microscope (SEM) observation; second positive active material particles having a Feret diameter of more than 5 μm in a projection image obtained by SEM observation; and a conductive agent, wherein a content of the conductive agent in the positive active material layer is less than 1.1% by mass, and the first positive active material particles are secondary particles having a ratio of an average secondary particle size to an average primary particle size of 3 or less, or primary particles which are not substantially aggregated.
Resumen de: US2025201836A1
The disclosure relates to a positive electrode active material. The positive electrode active material having a crystalline structure in which a transition metal layer containing nickel and a lithium layer are alternately arranged, wherein an a/b axial length ratio calculated by Rietveld analysis of a radiation XRD is 0.8 or more.
Resumen de: US2025201932A1
A non-aqueous electrolyte secondary battery including: a wound electrode assembly obtained by winding together a band-shaped positive electrode plate and a band-shaped negative electrode plate with a separator therebetween; and an outer housing can. A negative or positive electrode core is exposed at the outermost periphery of the assembly, and a portion at least one location on the wound-side end of the outermost peripheral surface is fixed by at least one piece of tape. When a region of the outermost peripheral surface where at least one piece of tape is affixed is a first region, a region thereof where no piece of tape has been affixed is a second region, and a region thereof that overlaps with the second region on the inner wound surface of the outermost peripheral section of the negative electrode plate is a third region, a spacer is provided on a portion of the third region.
Resumen de: US2025201825A1
An aluminum anode used in a nonaqueous electrolyte secondary battery is provided, including an anode body containing aluminum as a material, in which a resistance value in a case where a lithium intercalation capacity is 1 mAh/cm2 in a lithium intercalation reaction measured under predetermined measurement conditions is 6.5 kΩ·cm2 or less.
Resumen de: US2025201909A1
Provided is a method for producing a sulfide solid electrolyte containing mixing a raw material-containing substance containing lithium atoms, phosphorus atoms, sulfur atoms and halogen atoms and a complexing agent to obtain an electrolyte precursor-containing substance; and then heating in a solvent having a boiling point which is higher than the boiling point of the complexing agent, which efficiently produces a sulfide solid electrolyte having high ionic conductivity while using a liquid phase method, and which is easy to mass-produce.
Resumen de: US2025201969A1
A module for regulating a temperature of battery cells, the module comprising a main body, one or more additional bodies that are arranged and/or arrangeable on the main body, at least one temperature regulation medium inlet, at least one temperature regulation medium outlet, a sealing element, and receiving openings for receiving battery cells, wherein the sealing element is capable of sealing around some or around all of the receiving openings at surfaces of the battery cells which are arranged or arrangeable in the receiving openings, the main body and the one or more additional bodies as well as the battery cells which are arranged or arrangeable in the receiving openings constitute a temperature regulation circulation system for a temperature.
Resumen de: US2025201967A1
An expansion tank for a battery cooling system may include a tank housing having a first lid and a second lid, a dryer cartridge screwable onto a threaded nipple of the first lid, a vacuum valve arranged in the first lid, and a pressure relief valve arranged in the second lid. Fresh air from an environment may enter the expansion tank via the vacuum valve and the dryer cartridge when there is a vacuum in the expansion tank. Air may be released from the expansion tank into the environment via the pressure relief valve when there is excess pressure in the expansion tank.
Resumen de: US2025201981A1
An end plate for a cell housing of a battery cell includes: a first side and a second side, the second side arranged opposite the first side; a first groove that forms a first circular shape; and a second groove that forms a second circular shape is provided. A first aperture of the first groove or a second aperture of the second groove is on the first side or on the second side; the first groove and the second groove are mechanically coupled together; the first circular shape has a first radius r1; the second circular shape has a second radius r2; the first circular shape and the second circular shape have a common center; and the first radius r1 is at least 0.8 times as large as the second radius r2. A cell housing for a battery cell is further provided, including: a hollow cylinder; and an end plate, the end plate on an end face of the hollow cylinder. A battery cell is further provided, including a cell housing and an energy-storage device.
Resumen de: US2025201926A1
Liquid electrolyte compositions comprising a salt of the formula (I) which has an anionic complex comprising three bidentate ligands are provided. The complex comprises phosphorus as the central ion. Electrochemical cells comprising the liquid electrolyte composition are further provided. Salts of formula (I) are further provided.
Resumen de: US2025201896A1
The invention relates to an apparatus for forming and conveying cell stacks formed by segments for the energy cell producing industry, said apparatus comprising—at least two cell stacking devices which are designed to place the segments on top of each other to produce cell stacks, and—at least one feed device, each of which is designed to feed the segments to the cell stacking devices, wherein—a transport system having a plurality of individually movable transport units is provided, which are designed to convey the cell stacks produced by the cell stacking devices from a pick-up area into a delivery area that is spatially remote from the pick-up area, wherein—each of the cell stacking devices forms a cell stack in or on one of the transport units, and—the transport units in the pick-up area can be removed from the transport system in order to form the cell stack.
Resumen de: US2025201899A1
The present specification relates to an electrode assembly, in which a positive electrode, a negative electrode, and a separator provided between the positive electrode and the negative electrode are stacked and wound, a secondary battery including the same, a battery pack, and a transportation means.
Resumen de: US2025201892A1
A device for manufacturing a secondary battery includes: a pair of sealing blocks that are disposed at both sides, respectively, of a sealing part of a pouch from which an electrode lead is drawn out, the pair of sealing blocks being configured to compress and seal the sealing part at a seal temperature and pressure; and a preheating member that preheats each of the sealing part of the pouch and the pair of sealing blocks to a preheat temperature. The preheating member includes a first heating body that preheats to the preheat temperature a surface of the sealing part, on which each of the pair of sealing blocks is disposed, and a second heating body that preheats to the preheat temperature a surface of each of the pair of sealing blocks, which faces the sealing part.
Resumen de: US2025201897A1
An electrode lead alignment apparatus for manufacturing a battery includes: an alignment support configured to place an electrode lead thereon; a first-direction movement guide configured to push the electrode lead on the alignment support in a first direction to align the electrode lead; a first-direction movement member configured to be moved by a set first-direction movement stroke in the first direction, and connected to the first-direction movement guide to move the first-direction movement guide in the first direction; and a first-direction movement guide backward movement device configured to move the first-direction movement guide backward in a direction opposite in a direction in which the first-direction movement member is moved forward, when the electrode lead is stopped due to completion of alignment of the electrode lead by the first-direction movement guide during forward movement of the first-direction movement member in the first direction.
Resumen de: US2025201891A1
The present disclosure provides secondary battery-manufacturing equipment including a guide jig configured to be adjacent a lower portion of an electrode assembly at a position at which the electrode assembly is to be inserted into a case, and configured to descend together with the electrode assembly, a driving unit configured to drive the guide jig, and a control unit configured to control the driving unit.
Resumen de: US2025201852A1
A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The negative electrode for a rechargeable lithium battery includes a negative electrode active material layer including: an agglomerated product (e.g., a secondary particle) where at least one, e.g., two or more porous conductive material particle have pores, wherein pores of the adjacent porous conductive material particles in the agglomerated product (e.g., a secondary particle) are interconnected with each other.
Resumen de: US2025201904A1
A lithium secondary battery with a lithium metal and/or a lithium alloy as a negative electrode active material, in which the lithium secondary battery can be inhibited from being increased in resistance value in heat generation thereof is provided. A lithium secondary battery, wherein the lithium secondary battery comprises a negative electrode current collector layer, a metal layer, a negative electrode active material layer, an electrolyte layer, a positive electrode active material layer, and a positive electrode current collector layer in the listed order, the negative electrode active material layer contains a lithium metal or a lithium alloy, the thickness of the metal layer is 10 nm to 4000 nm, and the metal layer has a first metal that is taken with lithium to form an alloy, and a second metal contained in the negative electrode current collector layer.
Resumen de: US2025201905A1
A lithium secondary battery includes a lithium metal and/or a lithium alloy as a negative electrode active material, in which the lithium secondary battery can be enhanced in capacity retention rate and can be suppressed in generation of dendrite lithium. A lithium secondary battery comprises a negative electrode current collector layer, a metal layer, and a negative electrode active material layer, the negative electrode active material layer contains a lithium metal or a lithium alloy, the coverage of the negative electrode current collector layer with the metal layer is 50% or more and less than 95%, and the metal layer has a first metal that is taken with lithium to form an alloy, and a second metal contained in the negative electrode current collector layer.
Resumen de: US2025201830A1
An electrode mixture that can achieve both a low resistance and a high volumetric energy density, and a solid-state battery including such an electrode mixture. The electrode mixture includes a layered rock salt type electrode active material, a sulfide solid electrolyte, and a conductive aid. A D50 particle size of the layered rock salt type electrode active material is 2.5 μm or more and 4.5 μm or less, and a ratio of a mass of the conductive aid to a mass of the sulfide solid electrolyte is 2.0% by mass or more and 11.0% by mass or less.
Resumen de: US2025201903A1
An object of the present disclosure is then to provide a lithium secondary battery with a lithium alloy as a negative electrode active material, in which the lithium secondary battery is enhanced in capacity retention rate and reduced in resistance value. A lithium secondary battery, wherein the lithium secondary battery comprises a negative electrode current collector layer, a negative electrode active material layer, an electrolyte layer in the listed order, the negative electrode active material layer contains lithium, a first metal element that is taken with lithium to form an alloy, and a second metal element that is taken with lithium to form an alloy, the concentration (atomic %) of the first metal element in a surface facing the electrolyte layer is higher than the concentration (atomic %) of the first metal element in a surface facing the negative electrode current collector layer.
Resumen de: US2025201827A1
The disclosure relates to a battery having a positive electrode layer, an electrolyte layer and a negative electrode layer in that order, wherein the electrolyte layer contains dimethylsulfamoyl fluoride (MeFSA) and lithium bis(fluorosulfonyl)imide (LiFSI), and the negative electrode layer contains a Si-based active material as a negative electrode active material.
Resumen de: US2025201895A1
The invention relates to a cell-stacking system for stacking segments of energy cells, said system comprising: —a feed device which continuously feeds the segments at a feed speed, and —at least one cell-stacking unit which receives the segments from the feed device and stacks said segments one on top of the other to form stacks, wherein —the cell-stacking unit has at least one removal device and one depositing element, wherein —the removal device is driven to perform a repeating alternating movement consisting of an acceleration and a deceleration, and —the removal device receives the segments at the feed speed from the feed device and transfers said segments in a decelerated movement or at a standstill to the depositing element.
Nº publicación: US2025202260A1 19/06/2025
Solicitante:
ZHUHAI COSMX BATTERY CO LTD [CN]
ZHUHAI COSMX BATTERY CO., LTD
Resumen de: US2025202260A1
A charging method of a lithium battery includes: after reducing a charging upper limit voltage of the lithium battery according to a buck charging strategy, obtaining first index information during a process that the lithium battery adopts the buck charging strategy; when the first index information meets a first preset condition, shutting down the buck charging strategy of the lithium battery and starting a constant-capacity charging strategy. The constant-capacity charging strategy is a charging strategy based on a constant charging capacity of the lithium battery; and after the lithium battery recovers at least part of a capacity loss through the constant-capacity charging strategy, the constant-capacity charging strategy of the lithium battery is shut down. According to the embodiments of the present disclosure, the endurance capability of the lithium battery may be improved, and the service life of the lithium battery may be prolonged.
BOPI
Sede Electrónica
