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1890
resultados
Última actualización
30/06/2026 [12:07:00]
Resultados 1350 a 1375 de 1890
Resumen de: WO2026126011A1
The present disclosure relates to a cell assembly having varied coating thicknesses and a method for its preparation. The cell assembly of the present disclosure serves the purpose of corrosion resistance, enables the welding joint effectively, improves the quality by enabling the hardness, and reduces the overall cost of the cell.
Resumen de: US20260166491A1
0000 The disclosed subject matter relates to system and methods for electrochemical extractions of target ions, such as lithium.
Resumen de: WO2026126812A1
An electromotive force generating device 10 comprises: a power generation means 14 which has an electrolyte-containing body 11 containing an electrolytic solution, a positive electrode 12, and a negative electrode 13, and which generates an electromotive force when the positive electrode 12 and the negative electrode 13 come into contact with the electrolyte-containing body 11; and a container 16 in which the whole or a part of the electrolyte-containing body 11 is housed in a sealed state together with a liquid. Accordingly, in the electromotive force generating device 10, the humidity in the container 16 is kept at a certain level or higher, and a decrease in output current and output voltage due to a decrease in atmospheric humidity can be suppressed.
Resumen de: DE102024137854A1
Ein mehrlagiger Festelektrolytseparator (3) für eine Batteriezelle (1, 30) umfasst zumindest zwei Lagen (3a-h), wobei die zumindest zwei Lagen (3a-h) schichtweise mittels Aerosoldeposition abgeschieden sind, und wobei eine (3a) der zumindest zwei Lagen (3a-h) eine Ionenleitungsfunktion und eine Separationsfunktion umfasst.
Resumen de: WO2026123212A1
The present application provides a battery cell and an electric device. The battery cell comprises a first reinforcing member and a wound electrode assembly. The electrode assembly comprises a first electrode sheet; the first electrode sheet has a first tail segment; the first tail segment is the outermost turn of the electrode sheet in the electrode assembly; the first tail segment comprises a first straight section, a second straight section, a first bent section, and a second bent section; in the winding direction of the electrode assembly, the first straight section, the first bent section, and the second straight section are sequentially connected; the first reinforcing member is arranged on the first straight section. The problem of wrinkles occurring in the first straight section of the first electrode sheet after feeding tension of the first electrode sheet is released can be alleviated, and when wrinkles has occurred in the first straight section, the provision of the first reinforcing member on the first straight section can alleviate the risk of lithium plating or other interfacial problems occurring at the wrinkled part during the later stage of cycling of the battery cell, which may lead to puncture of the separator, thereby improving the safety performance of the battery cell.
Resumen de: US20260171500A1
An electrolyte for a lithium metal battery that includes a lithium salt, a non-aqueous organic solvent, and a thiophene additive, wherein the thiophene additive is included in an amount of 0.5 wt % to 3 wt % based on a total amount (100 wt %) of the electrolyte for a lithium metal battery.
Resumen de: US20260171502A1
An electrolyte for a lithium metal battery that includes a lithium salt; and a non-aqueous organic solvent where the non-aqueous organic solvent includes a main solvent and a cosolvent that is different from the main solvent.
Resumen de: US20260171611A1
Disclosed are an electrode assembly and a rechargeable lithium battery including the same, the electrode assembly including an electrode group stack including a plurality of positive electrodes and one or more negative electrodes alternately stacked in a thickness direction with a separator interposed therebetween, wherein the plurality of positive electrodes includes a first positive electrode and a second positive electrode, the first positive electrode is disposed on the inner side of the electrode group stack, the second positive electrode is disposed on the outer side of the electrode group stack, the first positive electrode includes a first positive electrode current collector and a first positive electrode active material layer, the second positive electrode includes a second positive electrode current collector, a second positive electrode active material layer, and a resin layer, the resin layer is disposed at the outermost portion of the electrode group stack.
Resumen de: US20260171484A1
A solid electrolyte includes a compound represented by LiaA1b1A2b2A3b3(Y)c(X)d. Li is lithium. A1, A2, and A3 are different from each other and A1, A2, and A3 each comprise antimony (Sb), tin (Sn), germanium (Ge), silicon (Si), or phosphorus (P). Y comprises oxygen (O), sulfur(S), selenium (Se), or tellurium (Te). X comprises chlorine (Cl), bromine (Br), iodine (I), or X1eX21-e. X1 and X2 are different from each other and X1 and X2 each comprise Cl, Br, or I. Further, a satisfies 5≤a≤8, b1, b2, and b3 each satisfy 0≤b1≤1, 0≤b2≤1, 0≤b3≤1, b1+b2+b3=1, c satisfies 4≤c≤6, d satisfies 0≤d≤2, and e satisfies 0
Resumen de: US20260171537A1
0000 An energy storage device is configured by stacking an electrically conductive current collector plate, a plurality of battery modules each including one or more battery cells, and a cooler configured to cool the battery modules. A groove is provided on a surface of the current collector plate that faces the battery module.
Resumen de: US20260171535A1
0000 A first electrode sheet includes a first portion located on an outermost side and serving as one turn around a winding axis, a second portion located inward of the first portion and serving as one turn around the winding axis, and a third portion located inward of the second portion and serving as one turn around the winding axis. Multiple holes includes a first hole provided in the first portion, a second hole provided in the second portion, and a third hole provided in the third portion. The second hole is located away from a first facing portion of the second portion that faces the first hole in a direction perpendicular to a surface of the first portion. The third hole is located away from a second facing portion of the third portion that faces the second hole in a direction perpendicular to a surface of the second portion.
Resumen de: US20260171479A1
0000 An object of the present disclosure is to provide a thin film for a solid-state battery that is, due to low residual solvent content, less likely to adversely affect the performance of a solid-state battery and can be manufactured by a roll-to-roll continuous coating method. The present disclosure provides a thin film for a solid-state battery 100 including solid electrolyte particles 110 and crystalline fluororesin 120 and 130 binding the solid electrolyte particles 110 together, in which at least part 130 of the crystalline fluororesin has a fibrous shape, and the content of volatile components measured by a gas analysis means is 10 ppm by mass or less.
Resumen de: WO2026127503A1
A battery system for monitoring a state of a battery sub-pack can be provided. The battery system may comprise: a battery unit; a positive contactor which is electrically connected to a positive terminal of the battery unit, and which has a main positive contactor and an auxiliary positive contactor that includes a common (COM) pin, a normally closed (NC) pin and a normally open (NO) pin; a negative contactor electrically connected to a negative terminal of the battery unit; a microprocessor for controlling the positive contactor and the negative contactor; a COM control circuit for providing an electrical signal to COM pin; an NC sensing circuit for monitoring an electrical signal from the NC pin and transmitting first information related to the electrical signal from the NC pin to the microprocessor; and an NO sensing circuit for monitoring an electrical signal from the NO pin and transmitting second information related to the electrical signal from the NO pin to the microprocessor.
Resumen de: US20260171628A1
0000 The present invention provides a fixing structure for electrode tabs of battery cells in a pouch cell battery, comprising two bus structures with a battery cell module positioned therebetween. Each bus structure includes a support seat and multiple busbars, with each busbar forming a joining surface. Multiple first electrode tabs of the battery cell module pass through the support seat and are bent to form first bent tab portions contacting the respective joining surfaces, while multiple second electrode tabs pass through the support seat and are bent to form second bent tab portions contacting the respective first bent tab portions. Each first bent tab portion is positioned between the corresponding joining surface and second bent tab portion, with the sequentially contacting busbar, first bent tab portion, and second bent tab portion being welded together.
Resumen de: WO2026123215A1
Provided in the present application are a modified lithium-rich manganese-based material and a preparation method therefor, and a positive electrode sheet and a secondary battery. The modified lithium-rich manganese-based material comprises a matrix, and a first coating layer, a second coating layer and a third coating layer sequentially arranged on the matrix; the matrix comprises a lithium-rich manganese-based material doped with an element M; the first coating layer comprises a lithium oxide containing an element M; the second coating layer comprises a metal phosphate and a solid electrolyte; and the third coating layer comprises a nano metal oxide.
Resumen de: WO2026127430A1
A battery device according to embodiments comprises: a housing accommodating a plurality of battery cells; an end cover coupled to one side of the housing and having an opening for discharging a gas generated from at least one of the plurality of battery cells; and a heat-resistant cover provided on the outside of the end cover, wherein the heat-resistant cover may comprise: a heat-resistant body coupled to the housing or the end cover; a venting portion which is connected to the heat-resistant body and covers at least partial region of the opening; and a cut portion disposed between the heat-resistant body and the venting portion.
Resumen de: US20260171591A1
A secondary battery, including an electrode assembly, a case accommodating the electrode assembly, and a cap plate covering an open portion of the case, wherein one of the case and the cap plate includes a vent part on an outer surface thereof, the vent part including a notch, the notch includes a first notch and a second notch, the first notch extends from a central portion of the vent part in a first direction, the second notch includes a first area extending from the central portion in the first direction, and a second area extending from the first area in a direction different from the first direction, and the first notch is inside the first area.
Resumen de: WO2026123569A1
The present disclosure relates to a battery cell airtightness measurement method and system. The measurement method comprises: placing a battery cell to be tested in a first sealed environment, filling the first sealed environment with a reactive gas and a tracer gas, such that the battery cell is in a second sealed environment, and performing an immersion treatment; extracting an environmental medium from the second sealed environment, and measuring the mass content of a target substance in the environmental medium; and when the mass content of the target substance is less than a first preset threshold value, measuring the leakage rate of the tracer gas, wherein the airtightness of the battery cell is determined on the basis of the mass content of the target substance and the leakage rate of the tracer gas. The battery cell airtightness measurement method and system in the embodiments of the present disclosure can improve the efficiency of battery cell airtightness measurement.
Resumen de: WO2026125827A1
One aspect of the invention relates to a method (100) for cooling a traction battery of a vehicle, the vehicle comprising a first cooling circuit for the battery and a second cooling circuit for a traction electric machine, wherein, following detection of thermal runaway of the battery, the method (100) carries out the steps of: fluidically disconnecting (101) the first and second circuits; deactivating (102) operation of the traction battery and of the traction electric machine; activating (103) operation of a first pump of the first circuit and of a second pump of the second circuit; fluidically connecting (105) the first and second circuits when: the temperature of the first circuit increases until reaching a first temperature threshold; or the temperature of the second circuit decreases until reaching a second temperature threshold.
Resumen de: US20260171607A1
A separator assembly for use in energy storages devices comprising a separator layer and a supporting tape, and methods thereof are disclosed. Separator assemblies utilizing a supporting tape such as a barrier layer and/or a coil core layer provides additional support to prevent electrode buckling and to protect the separator layer from wear-related electrode buckling and puncture over the life of the energy storage device.
Resumen de: WO2026125340A1
The invention relates to a method for determining a temperature datum of an electrochemical cell of a storage battery, comprising steps of: - applying a sinusoidal or square-wave voltage at a predetermined frequency across the terminals of the electrochemical cell, - measuring the resulting voltage and current across the terminals of the electrochemical cell, - calculating a value (PR) relating to the impedance of the electrochemical cell, - determining the temperature datum on the basis of the calculated value.
Resumen de: WO2026124346A1
A negative electrode material and a secondary battery. The negative electrode material comprises a plurality of spherical graphite composite particles, wherein a section of each spherical graphite composite particle has an average porosity of φ, an inner layer region a of each spherical graphite composite particle has an average porosity of φa, and an outer layer b of each spherical graphite composite particle has an average porosity of φb b, wherein 1.2≤φa/φb≤2.0, and 1.9%≤φ≤5%. The negative electrode material has a tabletting Ol value of y, an upper-limit Ol value of y1, a lower-limit Ol value of y2 and a compaction density of x, wherein y1=6.89x-6.04, y2=8.9x-7.76, y1≤y≤y2, 4.3≤y≤10, and 1.5 g/cm3≤x≤2.0 g/cm3. The internal porosity φ of the negative electrode material is reduced, and the average porosity φa of the inner layer region a is greater than the average porosity φb in the outer layer region b, such that the powder compaction density is improved and the orientation property is reduced, thereby reducing Li+ consumed for forming an SEI film during initial charging and discharging, and improving the initial coulombic efficiency.
Resumen de: WO2026127490A1
The present invention relates to: a positive electrode material capable of improving the performance of a lithium secondary battery; a positive electrode; and a lithium secondary battery, the positive electrode and the lithium secondary battery including the positive electrode material. The positive electrode material comprises: a first positive electrode active material including a first lithium-rich manganese-based oxide having a composition represented by chemical formula 1 or 2 described in the present specification, and a first coating portion formed on the first lithium-rich manganese-based oxide; and a second positive electrode active material including a second lithium-rich manganese-based oxide having a composition represented by chemical formula 1 or 2 described in the present specification, and a second coating portion formed on the second lithium-rich manganese-based oxide, wherein the first coating portion and the second coating portion each independently include at least one coating element (R) selected from the group consisting of aluminum (Al) and niobium (Nb), and the second positive electrode active material has a smaller average particle diameter (D50) than the first positive electrode active material.
Resumen de: US20260171385A1
0000 A manufacturing apparatus of a fiber-kind of electrode, including: a tank containing an active material solution and a polymer solution separated into a lower layer and an upper layer, and not mixed with each other; a transport portion configured to transport a fibrous substrate including: a supply roll located outside the tank; a take-up roll installed inside the tank to be immersed in the active material solution; and a winding roll located outside of the tank; a tubular portion surrounding around a part of the fibrous substrate transported between the supply roll and the take-up roll, and installed inside the tank to have an outer surface in contact with the polymer solution; and a dryer installed between the tank and the winding roll, and to dry the fibrous substrate discharged from the tank.
Nº publicación: WO2026127312A1 18/06/2026
Solicitante:
POSCO HOLDINGS INC [KR]
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Resumen de: WO2026127312A1
The present invention relates to an apparatus used in a heat treatment process for obtaining purified lithium sulfide powder. Presented are a method and a system in which a lithium sulfide heat treatment process requiring significant cost and time is automated such that production costs can be lowered and yield of a product can be improved.
BOPI
Sede Electrónica
