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1446
resultados
Última actualización
27/03/2026 [07:19:00]
Resultados 1050 a 1075 de 1446
Resumen de: US20260070469A1
A system for optimizing an operating state of a battery by using a cloud includes: a cloud unit configured to receive battery data; a first data collection unit configured to collect first data; a first data transmitter configured to transmit the first data to the cloud unit; a second data receiver configured to receive second data from the cloud unit; and a controller configured to control an operating state of a battery based on the second data and to perform any one of an update of first deterioration state information and an adjustment of a learning speed.
Resumen de: US20260074203A1
A lithium-metal secondary battery, which includes a highly reduction-resistant electrolytic solution, including 2 to 6 mol of electrolyte per L of solvent and also having a lithium deposition dissolution efficiency of 98.5% or more, which lithium deposition dissolution efficiency is the proportion of the amount of redissolution of lithium to the amount thereof deposited on the copper surface, wherein the relative density of a lithium metal layer in a negative electrode is 40 to 85%. In addition, a lithium-metal secondary battery, which includes a highly oxidation-resistant electrolytic solution, including 2 to 6 mol of electrolyte per L of solvent and also having a voltage of 5.5 V or more when the current density is 0.4 mA/cm2 using lithium as a counter electrode and platinum as a working electrode, wherein the relative density of a lithium metal layer in a negative electrode is 70 to 95%.
Resumen de: US20260074204A1
The present disclosure relates to an electrode active material and a battery. An electrode active material using a granulated body. The granulated body is a secondary particle provided by primary particles containing a Si element with use of a binder. In the electrode active material, a content of an organic solvent is 950 ppm or less.
Resumen de: US20260074194A1
Provided are a negative electrode active material which includes negative electrode active material particles which includes a silicon oxide (SiOx, 0
Resumen de: US20260074233A1
Electrodes for an electrochemical storage cell, including a conductor foil including an application zone for an electrode coating, the application zone including an outer region and a central region, are provided. The outer region of the application zone lies closer to an outer edge of the conductor foil than the central region. The application zone, in the outer region, has at least one electrolyte conduction region in which the diffusion rate of an electrolyte of the electrochemical storage cell is higher than in the application zone outside the electrolyte conduction region. Electrochemical storage cells including at least one electrode are further provided. Processes for producing an electrode for an electrochemical storage cell are further provided.
Resumen de: US20260074211A1
A positive electrode for a secondary battery including a positive electrode current collector, and a positive electrode active material layer supported on the positive electrode current collector. The positive electrode active material layer includes active material particles and an oxide film covering at least part of surfaces of the active material particles. The active material particles include a lithium-containing transition metal oxide, and the oxide film contains an oxide of a first element other than nonmetal elements. When a thickness of the positive electrode active material layer is denoted by TA, Tb<Tt is satisfied, where the Tb and the Tt are thicknesses of the oxide film at a position of 0.10TA and at a position of 0.90TA, respectively, from a surface of the positive electrode current collector in the positive electrode active material layer.
Resumen de: US20260074374A1
The disclosure provides a battery, including a first electrode plate and a separator, the first electrode plate including a first current collector and a first coating located on a surface of the first current collector. The first coating is connected to the separator, and a surface of the first coating is provided with a recess, and an air permeability S of the separator and a width L of the recess satisfy: 5000 μm·sec/100 cc≤S×L≤75,000 μm·sec/100 cc, where S is in sec/100 cc and L is in μm. The disclosure can improve the rate capability of the battery while reducing the voltage drop of the battery and reducing the risk of short circuit.
Resumen de: US20260074539A1
A battery control device includes: a first battery control unit configured to control an electrical connection between an external load and a first battery module, the first battery control unit including: a first switch connected between a positive terminal for the first battery module and the external load; a second switch connected between a negative terminal for the first battery module and the external load; and a first controller configured to control an open/closed state of the first and second switches. The first controller may be configured to detect a short-circuit between the external load and the first battery control unit, according to a voltage between both ends of the first switch detected with the first switch open and the second switch closed.
Resumen de: US20260074362A1
A secondary battery includes an electrode assembly, a pouch type case including an accommodation portion for accommodating the electrode assembly and a sealing portion for sealing the accommodation portion, an electrode lead connected to the electrode assembly and protruding to the outside of the pouch type case via the sealing portion, a lead film disposed between the electrode lead and the pouch type case, and a gas guide portion disposed between the electrode lead and the lead film. The gas guide portion includes a first layer having a modified polyolefin resin in contact with the electrode lead, and a second layer disposed on the first layer.
Resumen de: US20260074353A1
Examples of the disclosure include a spacer including a polymer matrix, and an endothermic flame retardant dispersed in the polymer matrix. The polymer matrix includes a fiberized polymer, and the endothermic flame retardant is included in a content in a range of about 60 wt % to about 98 wt % with respect to a total weight of the spacer.
Resumen de: US20260074378A1
A busbar holder includes: a bridge portion between a plurality of through holes through which a busbar is to be inserted; and a buffer portion extending inwardly from one side surface of a through hole from among the through holes, and having an upwardly bent shape, the one side surface facing the bridge portion.
Resumen de: US20260074368A1
Improved battery separators, batteries, and systems, as well as methods relating thereto are disclosed herein for use in various lead acid batteries such as valve-regulated lead acid (VRLA) batteries that include one or more AGM layers. The improved battery separators described herein may provide a battery system with an advantage of a significantly decreased acid filling time and a significantly increased acid filling speed. Various improved batteries, methods and systems are described herein using such improved battery separators that increase acid filling speed and decrease acid filling time for a VRLA battery.
Resumen de: US20260071945A1
Systems and methods that facilitate X-ray imaging of lithium-ion (Li-ion) batteries during mechanical, thermal, and/or electrical abuse are disclosed. In addition to facilitating X-ray imaging, the system also facilitates the simultaneous collection of thermal, electrical, force, and displacement data during the abuse-testing of Li-ion batteries. Materials that are within the field of view of X-ray imaging are highly transparent to X-rays. The system also contains a mechanical indentation apparatus that facilitates high force indentation, compression, or penetration tests of batteries to induce mechanical failure or thermal runaway within the Li-ion battery.
Resumen de: US20260072093A1
The disclosed method is a method for measuring the internal resistance of a battery. The measurement method includes a conduction step of charging or discharging the battery, a measurement step of measuring an open circuit voltage of the battery at the end time of the charging or discharging and thereafter, and a calculation step of individually calculating at least one resistance component included in the internal resistance, based on a voltage change of the open circuit voltage measured in the measurement step and a current value of current flowing through the battery for the charging or discharging at the end time. In the calculation step, the at least one resistance component is calculated based on a slope of a line obtained by plotting the voltage change in a graph in which a horizontal axis indicates a square root of an elapsed time from the end time and a vertical axis indicates the open circuit voltage.
Resumen de: US20260072085A1
A jig for measuring three electrode voltages includes: a jig body having a receiving portion for a secondary battery; a jig door for sealing the receiving portion; a positive electrode on the receiving portion, electrically connected to a positive electrode tab, and protruding outwardly; a negative electrode on the receiving portion of the jig body, being in contact with and electrically connected to a conductive member electrically connected to the secondary battery, and protruding outwardly; and a reference electrode inserted into a winding core of an electrode assembly of the secondary battery in the receiving portion while extending through a top plate of the jig body and protruding to an upper portion of the jig body. The reference electrode comprises a metal wire and a metal cap wrapping around the metal wire, and a length of the metal cap is in a range of 15 mm to 20 mm.
Resumen de: US20260072095A1
An electronic device obtains input data through a detection circuit, standardizes each of column vectors of the input data to obtain standardized data for the input data, obtains determination reference data based on the standardized data, and determines first state abnormality and/or second state abnormality of each of the M battery cells based on values indicated by the entries of respective row vectors of the determination reference data. The first state abnormality is determined based on a learning-based model, and the second state abnormality is determined based on a scheme other than the learning-based model.
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.
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: 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: US20260074397A1
A conductive module, a cover plate assembly, and a battery cell are provided. The conductive module includes a pole, where the pole includes a metal post and a metal layer bonded on a surface of the metal post. The metal layer includes a clamping portion; and a terminal pressing block connected to the pole. The clamping portion is clamped between the metal post and the terminal pressing block. The pole is provided to include the metal post and the metal layer, and the pole is connected to the terminal pressing block. A portion (i.e., the clamping portion) of the metal layer is clamped between the metal post and the terminal pressing block.
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.
Nº publicación: US20260074399A1 12/03/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
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.
BOPI
Sede Electrónica
