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1318
resultados
Última actualización
15/03/2026 [07:37:00]
Resultados 100 a 125 de 1318
Resumen de: US20260074299A1
An electrode precursor composition for an alkali metal ion secondary cell is described. The composition includes a polymer-solvent gel matrix phase and a dispersed phase containing an electrochemically active material. The electrochemically active material has a multimodal particle size distribution having a D150/D250 in the range 2 to 15. The electrode precursor composition can be processed into an electrode for an alkali metal ion secondary cell, for example a lithium ion secondary cell.
Resumen de: US20260074547A1
Embodiments of the present application provide a charging and discharging apparatus and a battery charging method, which are capable of ensuring security performance of a battery. The apparatus comprises a bi-directional DC/DC converter and a control unit, wherein the control unit is configured to: receive a first charging current transmitted by a battery management system (BMS) of a battery, control the bi-directional DC/DC converter based on the first charging current to charge the battery through an energy storage battery; receive a first discharging current transmitted by the BMS and control the bi-directional DC/DC converter based on the first discharging current to discharge a battery capacity of the battery to the energy storage battery; and receive a second charging current transmitted by the BMS and control the bi-directional DC/DC converter based on the second charging current to charge the battery through the energy storage battery.
Resumen de: US20260074401A1
A method of manufacturing a secondary battery, the method including providing a battery can with an opening and a terminal-side surface, the terminal-side surface including a terminal, providing a cover, the cover being bonded onto the opening of the battery can, assembling an electrode assembly, accommodating the electrode assembly in the battery can and mounting the same, such that the electrode assembly faces the opening, injecting an electrolyte into the battery can within which the electrode assembly is accommodated, pressurizing and precharging the electrode assembly, and bonding the cover onto the opening of the battery can.
Resumen de: US20260074542A1
The present application relates to a surgical instrument and an assembling method therefor. A power source discharging mechanism includes a circuit board and a sliding member. The circuit board includes a discharging circuit, a conductive sheet, and a conductive contact surface. A fixed terminal of the conductive sheet is fixed to the circuit board, and the conductive contact surface faces an extension section of the conductive sheet. The sliding member is opposite to the conductive sheet and can linearly move relative to the power source assembly. At a first position, at least a portion of the extension section of the conductive sheet is separated from the conductive contact surface. At a second position, at least a portion of the extension section of the conductive sheet is in contact with the conductive contact surface.
Resumen de: US20260074375A1
This application relates to the field of power batteries and provides a battery cell, a battery, and a power-consuming apparatus. The battery cell includes an adapter with a protruding welding point and a covering member connected to the adapter. An accommodating cavity is formed between the covering member and the adapter to house at least part of the welding point. The structure allows the covering member to fit more closely to the adapter around the welding point, reducing suspension or detachment of the covering member. As a result, adhesion between the covering member and the adapter is improved, enhancing structural reliability and performance of the battery cell.
Resumen de: US20260074342A1
A battery pack case according to an embodiment of the present disclosure includes a housing having an accommodation space therein, and a partition plate disposed in the accommodation space to partition the accommodation space, wherein the partition plate may include a first member forming an outer surface of the partition plate, and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member.
Resumen de: US20260074292A1
A lithium secondary battery 100 of the present disclosure includes: a positive electrode 5 including MnO2; a negative electrode 6 including a negative electrode active material with lithium ions occluded; and an electrolytic solution including a mixed solvent of a cyclic carbonate and a chain carbonate, the electrolytic solution being impregnated into the positive electrode 5 and the negative electrode 6. The negative electrode active material includes, for example, at least one selected from the group consisting of graphite and silicon. The cyclic carbonate includes, for example, at least one selected from the group consisting of ethylene carbonate and vinylene carbonate. The chain carbonate includes, for example, ethyl methyl carbonate.
Resumen de: US20260074291A1
An electrolyte including lithium bis(fluorosulfonyl)imide and lithium hexafluorophosphate, where based on a total weight of the electrolyte, a weight percentage of lithium bis(fluorosulfonyl)imide is a %, and a weight percentage of lithium hexafluorophosphate is b %, where 12<a+b<20 and 0.2<a/b<1.5. An electrochemical apparatus using the electrolyte described in this application can achieve high energy density while also ensuring rate performance at room temperature and high temperature and cycling stability at room temperature and high temperature.
Resumen de: US20260074289A1
An electrolyte for a thick LFP-Li battery system is provided. The electrolyte includes a low-viscosity main salt, at least one lithium-based functional salt, and a solvent including a low viscosity solvent mixed with a cyclic ether solvent. The low-viscosity main salt includes at least one of LiTFSI or a lithium salt.
Resumen de: US20260074287A1
A lithium-ion secondary battery and an electric apparatus are provided. The lithium-ion secondary battery includes an electrolyte. The electrolyte includes alkali metal ions having an ionic radius greater than a radius of lithium ions and a film-forming additive. Based on a total mass of the electrolyte, a mass percentage A of the alkali metal ions and a mass percentage B of the additive satisfy 0.10≤B/A≤6×104.
Resumen de: US20260074285A1
An electrolyte for a lithium secondary battery according to exemplary embodiments includes an additive including a compound having a specific structure, an organic solvent and a lithium salt. Accordingly, a lithium secondary battery including the electrolyte for a lithium secondary battery exhibits improved low-temperature properties such as resistance and capacity retention, and high-temperature stability.
Resumen de: US20260074399A1
A secondary battery includes: an electrode assembly including a first electrode tab and a second electrode tab; a first current collector plate electrically connected to the first electrode tab; a case in which the first current collector plate and the electrode assembly are accommodated; a cap plate sealing an upper end of the case and including a coupling protrusion protruding downward; and an insulating member coupled to and fixed to the coupling protrusion at a lower portion of the cap plate, and the first current collector plate is coupled to a coupling hook located under the insulating member to be fixed.
Resumen de: US20260074384A1
In one exemplary embodiment, an electrode sheet is provided. The electrode sheet has a longitudinal direction and a lateral direction and constitutes an electrode of a secondary battery by being wound with the lateral direction as an axial direction. The electrode sheet includes a current collector that includes a resin layer, and a first current collecting layer and a second current collecting layer that are respectively provided on both surfaces of the resin layer; a first active material layer that is provided on a surface of the first current collecting layer on a side opposite to the resin layer; and a first metal sheet that is bonded to one end of the first current collecting layer in the lateral direction and has a first bonding mark formed along the longitudinal direction by the bonding, where the first metal sheet has a first extending part that extends from the first current collecting layer in the lateral direction.
Resumen de: US20260074372A1
A separator and a preparation method of separator, a battery cell including the separator, a battery including the battery cell, and an electric device including the battery, where the separator includes at least two base films and a functional layer interposed between two adjacent base films, and the base film includes at least two components.
Resumen de: US20260074398A1
An electric power storage module including: an electrode stack including a plurality of electrodes each including a current collector and a detection line joined to the current collector; and a sealing body provided on the electrode stack to surround the electrode stack and configured to seal an internal space between the current collectors adjacent to each other, in which the sealing body includes a plurality of sealing members made of a resin and welded to the plurality of electrodes, respectively, a plurality of spacers each of which is made of a resin, disposed between the sealing members adjacent to each other, and forms the internal space together with each of the sealing members, and an outer side face formed by welding the sealing members and the spacers to each other.
Resumen de: US20260074376A1
An electrode assembly comprises an active substance-coated part and a tab part. The tab part comprises a plurality of tab pieces, overlapping parts of the plurality of tab pieces forming an overlapping region, and misaligned parts of the plurality of tab pieces forming a misalignment region connected to the overlapping region. The misalignment region comprises a first connection part and a second connection part, the side of the first connection part in a first direction being connected to the active substance-coated part, and the second connection part being connected to the other side of the first connection part in the first direction. In a second direction, the end of the second connection part away from the overlapping region is closer to the overlapping region than the end of the first connection part away from the overlapping region.
Resumen de: US20260070003A1
Provided is an electrode slurry storage apparatus for a secondary battery, the apparatus comprising: a slurry storage tank storing an electrode slurry for a secondary battery; a degassing blade accommodated inside the slurry storage tank; and a negative pressure pump which is connected to the slurry storage tank and puts the inside of the slurry storage tank into a negative pressure state, wherein the degassing blade physically strikes air bubbles in the upper part of the slurry storage tank.
Resumen de: US20260070149A1
An ultrasonic welding method including arranging a pressing force measuring anvil including a pressing force measuring sensor under a horn, moving the horn downward, pressing the pressing force measuring anvil, and measuring a pressing force of the horn using the pressing force measuring sensor, comparing the measured pressing force of the horn with a preset pressing force range and controlling a down stroke of the horn so that the pressing force of the horn is within the preset pressing force range, changing the pressing force measuring anvil with a welding anvil and positioning the welding anvil under the horn after the down stroke of the horn is adjusted, supporting welding target members on the welding anvil, and moving the horn by the adjusted down stroke and ultrasonically welding the welding target members on the welding anvil.
Resumen de: US20260070301A1
A method and system for extruding multiple laminated flow streams using microlayer extrusion, and in particular to creating and forming products with electrical properties that are formed from layers and particles with dimensions in the micro to nanometer range.
Resumen de: US20260070268A1
An apparatus for molding a pouch, which includes: a transfer device configured to transfer a pouch film; a molding device configured to press a top surface of the pouch film to mold an accommodation part for accommodating an electrode assembly; and an inspection device configured to calculate a depth value of the accommodation part formed in the pouch film to detect defects. The inspection device includes: a distance measuring member configured to measure a first measurement value and a second measurement value, and an inspection member configured to calculate a depth value of the accommodation part by subtracting the first measurement value from the second measurement value, wherein if the calculated depth value is within a set input value range, it is determined as normal, and if the calculated depth value is out of the set input value range, it is determined as defective.
Resumen de: US20260074288A1
A lithium secondary battery and an electrical apparatus. The lithium secondary battery includes a positive electrode plate and an electrolyte solution, where the positive electrode plate includes a positive electrode active material layer containing a positive electrode active material, and the positive electrode active material includes at least one doping element selected from aluminum, zirconium, boron, magnesium, zinc, calcium and titanium; the electrolyte solution includes a silane-based first additive containing C2-C8 alkenyl and a second additive, and the second additive is selected from at least one of lithium fluorosulfonate, lithium bis(fluorosulfonyl)imide and lithium tetrafluoroborate; and the ratio of the mass percentage content W1 of the first additive in the electrolyte solution to the mass percentage content W2 of the second additive in the electrolyte solution to the mass percentage content W3 of the doping element in the positive electrode active material satisfies 1:(0.2-2):(0.1-0.5).
Resumen de: US20260074281A1
An electrolyte for a rechargeable lithium battery of exemplary embodiments includes: an organic solvent; a lithium salt; and a bisphosphate-based additive, thereby providing an electrolyte for a rechargeable lithium battery capable of imparting improved flame retardant characteristics and cell performance, for example, high-temperature storage characteristics and lifespan characteristics, and a rechargeable lithium battery including the same.
Resumen de: US20260074283A1
Provided is a lithium-ion battery, comprising a positive electrode plate, a negative electrode plate and a non-aqueous electrolyte. The positive electrode plate comprises a positive electrode current collector and a positive electrode material layer arranged on the positive electrode current collector, and the positive electrode plate has a resistivity less than or equal to 1500 Ω·cm. The non-aqueous electrolyte comprises a non-aqueous organic solvent, a lithium salt and an additive; the additive comprises at least one cyclic sulfonic acid ester selected from 1,3-propane sultone, 1,4-butane sultone, 1,3-propylene sultone and methylene methane disulfonate; the lithium-ion battery meets the following requirements: 0.3≤m*d/f≤20, 70≤d≤150, 3≤f≤30 and 0.01≤m≤3. The lithium-ion battery forms a relatively stable interfacial film during formation, which is beneficial to improving the structural stability of the positive electrode active material, inhibiting the dissolution of metal ions, and avoiding the consumption and decomposition of non-aqueous electrolyte in the cycle process.
Resumen de: US20260074282A1
Provided are a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same and having improved high-temperature storage characteristics and high-temperature cycle characteristics. Specifically, the non-aqueous electrolyte solution may comprise a lithium salt, an organic solvent and a compound represented by Formula 1 as a first additive:wherein Formula 1,Ar is a 5-membered or 6-membered nitrogen-containing ring,and R1 and R2 are each independently an alkyl group having 1 to 8 carbon atoms.
Nº publicación: US20260074365A1 12/03/2026
Solicitante:
KK TOYOTA JIDOSHOKKI [JP]
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Resumen de: US20260074365A1
A power storage module includes a module main body having an electrode stack in which a plurality of electrodes are stacked; and a pressure control valve attached to the module main body. The pressure control valve includes a housing having a first wall that has a communication hole, a second wall, and a first protrusion formed in the second wall, and a valve body accommodated in the housing so as to close the communication hole. The second wall has a first hole that is opened at an outer surface of the second wall, and a second hole that is opened at the outer surface, the second hole being positioned vertically above the first hole. The first protrusion protrudes outward from the outer surface along a first direction, and extends so as to partition between the first hole and the second hole, as viewed in the first direction.
BOPI
Sede Electrónica
