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1356
results.
Updated on
03/05/2026 [07:29:00]
Results 275 to 300 of 1356
Absstract of: US20260121220A1
An electrode assembly manufacturing apparatus includes: a wound separator in which two or more layers of separators are stacked and wound; a separator supply unit that individually separates and supplies the two or more layers of separators from the wound separator; a first electrode supply unit that supplies a first electrode; a second electrode supply unit that supplies a second electrode; and a winding unit that individually stacks and winds each separated separator, between the first electrode and the second electrode and on an outer side of the first electrode or the second electrode.
Absstract of: US20260121104A1
The present disclosure relates to the field of lithium-ion batteries and discloses a single crystal cathode material, a preparation method thereof, and a lithium-ion battery. The single crystal cathode material has a size distribution B90=(P90−P10)/P50 of single crystal particles satisfying 0.9≤B90≤1.4. A Young's modulus E of the cathode material, measured by Atomic Force Microscopy, satisfies 100 GPa≤E≤200 GPa. The single crystal particles of the single crystal cathode material have a specific particle size distribution, enabling the single crystal cathode material to have a high compaction density, and to have a higher Young's modulus allowing the single crystal cathode material to withstand a higher rolling force during the preparation of the battery, thereby improving the volume energy density of the lithium-ion battery including the cathode material.
Absstract of: WO2026089386A1
The present invention relates to a positive electrode active material comprising a lithium transition metal oxide in the form of single particles, wherein the lithium transition metal oxide contains 50 mol% or more of nickel in all transition metals excluding lithium, and shows a ratio of the rolling density (g/cm3) when rolled at 9 tons to the rolling density (g/cm3) when rolled at 2 tons (rolling density when rolled at 9 tons/rolling density when rolled at 2 tons) of greater than 2, fine particles having a particle diameter of 1 mu or less when rolled at 9 tons being contained in a content of 1 vol% or less.
Absstract of: US20260121145A1
Some embodiments are directed to systems and methods for direct recycling of batteries. In one aspect, a method includes obtaining spent cathode materials from spent batteries. The method includes wet milling the spent cathode materials in an aqueous medium to obtain deagglomerated particles. The method includes spray drying the deagglomerated particles to obtain a plurality of clusters of particles. The method further includes annealing the plurality of clusters of particles in a gaseous environment to obtain a plurality of single particles.
Absstract of: US20260121095A1
0000 Improved performance ion exchange membranes for use in PEM, AEM and DMFC fuel cells, buffered fuel cells, hydrolysis, other applications comprise a molecular matrix of homopolymers, di-monomer, heteropolymers, copolymers, or block-polymers of fluorocarbon and hydrocarbon compounds combined with (i) skeletal support grid to improve durability, handling, reduce membrane swelling, and sequester dopants and nanoparticles from leakage; (ii) microporous membrane formed using a sacrificial filler process enhancing conductivity and limiting fuel crossover; (iii) hetero-ionomeric matrix of two-or-more membrane-bound acids e.g. sulphonic and phosphonic acid expanding usable range; (iv) permanent fillers enhancing conductivity and porosity including nanoparticles, metal-oxides, zeolites, silicates, GOs, CNTs, MOFs, POSS, and others; (v) ionic liquid doping to enhance membrane conductivity; (vi) membrane nanocoating preventing H<2>O<2 >diffusion; and/or (vii) catalytic nanocoating with metals, metal-oxides, and MOFs preventing atmospheric toxin catalyst poisoning. Combined with a heterogenous GDL, the IEM is integrated into iBFC power blade and energy bank applications.
Absstract of: WO2026089402A1
A battery diagnosis apparatus and a battery diagnosis method are provided. The battery diagnosis method comprises the steps of: determining a reference temperature factor having a dependent relationship with the current operating mode of a battery, the mode corresponding to any one of a charging mode, a discharging mode and an idle mode; and diagnosing a temperature abnormality of the battery by using the reference temperature factor.
Absstract of: US20260121190A1
0000 It is to provide an electricity storage device in which a strength of an outer case is enhanced. The electricity storage device disclosed herein includes an electrode assembly including a positive electrode and a negative electrode, and includes an outer case that is configured to accommodate the electrode assembly and that is made of a metal. On the outer case, a fiber is continuously wound to cover an outer periphery side surface, so as to be aligned along a predetermined direction.
Absstract of: US20260121142A1
A power storage device includes: a first power storage cell; a second power storage cell; and a wiring board. The wiring board includes a substrate, and a plurality of conductor members provided on a vertically upper surface of the substrate. The plurality of conductor members include a first conductor member and a second conductor member. The first power storage cell includes, on a vertically lower surface thereof, a first electrode terminal connected to the first conductor member. The second power storage cell includes, on a vertically lower surface thereof, a second electrode terminal connected to the second conductor member. At least one of a protrusion, a recess and a through hole is provided in a portion of the substrate between the first electrode terminal and the second electrode terminal.
Absstract of: WO2026085739A1
An energy storage device, comprising: a housing, a heat exchanger, a plurality of temperature sensors, a plurality of battery modules, and a controller, wherein the controller is respectively connected to the temperature sensors and the heat exchanger. The controller is configured to: acquire battery cell temperatures, calculate a first temperature difference between the battery cells, and determine a first rotational speed of a first fan on the basis of the first temperature difference; acquire an ambient temperature, calculate a second temperature difference between the battery cells and the ambient temperature, and determine a second rotational speed of the first fan and a third rotational speed of a second fan on the basis of the battery cell temperatures and the second temperature difference; and determine the rotational speed of the first fan to be max (the first rotational speed and the second rotational speed).
Absstract of: WO2026089938A1
The present disclosure relates to an electrochemical cell comprising a cathode, an electrolyte, and an anode with a laminated bi-layer structure. This bi-layer anode addresses interface instability challenges in lithium metal batteries through a protective first layer and high-capacity second layer that are mechanically integrated via rolling. The first layer comprises lithium-containing materials including lithium-magnesium alloy, lithium nitride, LLZO, or combinations thereof, providing interfacial stabilization and preventing polysulfide shuttling. The second layer comprises lithium-magnesium alloy, lithium titanate, or combinations thereof, contributing substantial capacity. This configuration eliminates interface resistance buildup, reduces costs through selective use of expensive protective materials, and enables practical utilization of high-magnesium content alloys.
Absstract of: WO2026089400A1
The present invention relates to a positive electrode active material and a lithium secondary battery comprising same. More specifically, the present invention relates to a positive electrode active material having a polycrystalline structure and a lithium secondary battery comprising same, in which surface resistance characteristics are stabilized and high-temperature cycle life characteristics are improved through surface modification of a lithium transition metal oxide containing 80 mol% or more of nickel (Ni) among transition metals.
Absstract of: WO2026089587A1
The present disclosure relates to a secondary battery. Specifically, the disclosure provides a secondary battery, comprising: an electrode assembly in which a first electrode plate, a second electrode plate and a separator interposed between the first electrode plate and the second electrode plate are stacked and wound, and which has a space portion formed at the center of winding; a core member inserted into the space portion; a case including an opening, and accommodating the electrode assembly and an electrolyte; and a cap assembly coupled to the opening so as to seal the case, wherein the core member moves the electrolyte accommodated in the case from the bottom to the top thereof.
Absstract of: US20260121099A1
Disclosed herein are an apparatus and method for stacking electrode plates. The apparatus for stacking the electrode plates includes an electrode plate movement unit configured to move the electrode plates, a slide unit having a sliding curved surface formed along its inner circumference and an electrode plate discharge port formed at its bottom, and configured to slide the electrode plates supplied from the electrode plate movement unit along the sliding curved surface for discharge through the electrode plate discharge port, and a stacking unit configured to sequentially stack the electrode plates discharged through the electrode plate discharge port.
Absstract of: WO2026089289A1
The present specification relates to a sulfide-based solid electrolyte compound and a lithium secondary battery comprising same, and more specifically to a method for improving air stability and electrochemical performance of a sulfide-based solid electrolyte having an argyrodite-type crystal structure.
Absstract of: WO2026089290A1
The present specification relates to a method for producing a lithium-ion conductive sulfide-based compound and, more specifically, to a method in which particle size distribution is rapidly controlled during pulverization of a sulfide-based solid electrolyte having an argyrodite-type crystal structure.
Absstract of: WO2026090035A1
Embodiments relate to a sulfur-based cathode including a sulfurized hybrid polymer network configured to avoid soluble polysulfide formation, and to lithium-sulfur batteries include the sulfur-based cathode. The sulfurized hybrid polymer network includes a sulfurized inorganic polymer hybridized with a sulfurized organic polymer, specifically configured to interactively re-bond and/or adsorb dissociative sulfur species, thereby preventing soluble polysulfide formation.
Absstract of: WO2026089205A1
According the present disclosure, it is possible to provide a battery assembly comprising: a plurality of battery cells; a main frame accommodating the plurality of battery cells; an upper cover covering an upper portion of the main frame; and a flame-retardant sheet disposed between the plurality of battery cells and the upper cover, wherein the upper cover includes at least one venting hole, and the flame-retardant sheet includes: a flame-retardant laminate including a plurality of base sheets, which are stacked in a first direction and include a flame-retardant material, and an adhesive member interposed between the plurality of base sheets; and an insulating member comprising a heat-insulating material and provided to suppress heat transfer, the insulating member being disposed on at least one of the two outermost surfaces of the flame-retardant laminate in the first direction.
Absstract of: DE102024131606A1
Die Erfindung betrifft ein System (1) zum Kühlen und/oder Heizen für ein Fahrzeug. Das System (1) umfasst einen vom Kühlmittel durchströmbaren Kühlmittel-Kreislauf (13) mit zwei Teilkreisläufen (13a, 13b). In dem einem Teilkreislauf (13a) sind ein Chiller (2), ein luftdurchströmbarer Kabinen-Kühler (3) und ein regelbarer Bypass (19) und in dem anderen Teilkreislauf (13b) sind der Chiller (2) und ein Verteilungsventil (12) fluidisch angeschlossen. Die Teilkreisläufe (13a, 13b) sind stromauf des Chillers (2) miteinander fluidisch verbunden und stromab des Chillers (2) fluidisch voneinander getrennt. Die Erfindung betrifft auch ein Verfahren (23) zum Betreiben des Systems (1).
Absstract of: US20260121169A1
0000 Existing electric transportation equipment and its auxiliary facilities mostly rely on heating or insulation devices to cope with low-temperature environments, which is not only energy-intensive but also costly. Based on experimental findings, this invention discloses a cooling and life-extending device suitable for electric transportation equipment and its auxiliary facilities, including but not limited to functional units: battery module 405, cooling system 101, and air duct 102. This device actively maintains the battery module in a low-temperature range to extend battery life and improve economic efficiency throughout its life cycle. It incorporates a comprehensive strategy including multi-stage cooling, intelligent temperature control, and capacity redundancy, enabling the battery to operate stably at low-temperatures. This cooling and life-extending device transforms the scientific discovery of “low-temperature life-extending” into an engineeringable solution, significantly improving battery life and system efficiency while reducing energy consumption and operating costs for heat dissipation, demonstrating significant innovation and industrialization value.
Absstract of: WO2026088101A1
A fire prevention and extinguishing system for an electrochemical cell or a group of cells uses a compressor, a gas cooler, a high-pressure refrigerant tank, an expansion valve, a heat exchange structure, a direct injection structure, and solenoid valves as components. The compressor compresses the refrigerant, which is sent to the high-pressure tank after passing through the cooler, and then expands in the heat exchange structure when the expansion valve opens. After expansion, the refrigerant can either return to the compressor or be discharged near the cell as extinguishing gas via the direct injection structure.
Absstract of: DE102024130965A1
Die Offenbarung betrifft ein Verfahren zum Bestimmen einer Kühlleistung eines Kühlsystems (4) eines Batteriespeichers (2), mit den folgenden Schritten:- Bestimmen eines vordefinierten Kalibrierprofils (10);- Beaufschlagen des Batteriespeichers (2) mit dem Kalibrierprofil (10);- Bestimmen einer Referenztemperatur des Batteriespeichers (2);- Aktivieren des Kühlsystems (4);- Bestimmen einer Kühl-Sättigungstemperatur des Batteriespeichers (2);- Vergleichen der Kühl-Sättigungstemperatur und der Referenztemperatur zum Bestimmen der Kühlleistung. Ferner betrifft die Offenbarung ein Kühlsystem (4) eines Batteriespeichers (2) mit einer Steuereinheit (6), welche eingerichtet ist, das offenbarungsgemäße Verfahren auszuführen, und wenigstens eine Pumpeneinheit (8) ansteuert, um Kühlmittel innerhalb des Kühlsystems (4) zu fördern
Absstract of: DE102024130959A1
Die Offenbarung betrifft ein Temperiermodul (6) zum Temperieren wenigstens einer Batteriezelle (2) eines Batteriespeichers (1) mit einer flexiblen Außenhülle (8), welche bei Druck von außen, insbesondere bei einer Änderung des Volumens der wenigstens einen Batteriezelle (2), verformbar ist, einem im Inneren der Außenhülle (8) ausgebildeten Fluidkanal (10), innerhalb welchem ein Temperierfluid strömt, um mit der wenigstens einen Batteriezelle (2) Wärmeenergie auszutauschen, und wenigstens einer Ausgleichskammer (12), in welche Temperierfluid in Abhängigkeit von einem auf die Außenhülle (8) wirkenden Druck strömt. Ferner betrifft die Offenbarung eine Zellanordnung (20) sowie einen Batteriespeicher (1).
Absstract of: WO2026089021A1
A negative electrode 10 of the present disclosure comprises a negative electrode mixture layer 12. The negative electrode mixture layer 12 contains a negative electrode active material and a binder component. The negative electrode active material contains a silicon-containing material. The binder component contains a binder compound and a chelating agent, and the chelating agent has five or more chelating functional groups in one molecule. The negative electrode 10 is furthermore provided with a negative electrode current collector 11, for example. A non-aqueous electrolyte secondary battery of the present disclosure is provided with the negative electrode 10, a positive electrode, and a non-aqueous electrolyte.
Absstract of: US20260121265A1
0000 A method of manufacturing a secondary battery includes initially injecting an electrolyte into an internal space of a housing in which an electrode assembly is accommodated, extracting the electrolyte initially injected into the internal space of the housing to an outside of the housing, reinjecting the electrolyte into the internal space of the housing, and applying power to the electrode assembly to charge the electrode assembly after reinjecting the electrolyte.
Nº publicación: WO2026089076A1 30/04/2026
Applicant:
LIBEST INC [KR]
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Absstract of: WO2026089076A1
A method for manufacturing a secondary battery according to the present invention comprises the steps of: forming an electrode assembly comprising a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode so as to have a first radius of curvature; forming a cell comprising the electrode assembly and an exterior material by accommodating the electrode assembly in an exterior material having a curved surface corresponding to the first radius of curvature and sealing the exterior material; and activating the cell, wherein the step of forming the cell and the step of activating the cell are performed in a state in which the cell is curved so as to have a second radius of curvature equal to or less than the first radius of curvature.
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