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738
resultados
Última actualización
02/11/2026 [10:25:00]
Resultados 75 a 100 de 738
Resumen de: WO2026222705A1
The present application provides a lithium iron phosphate composite material and a preparation method therefor, a positive electrode sheet, and a secondary battery. The lithium iron phosphate composite material comprises a core layer, wherein the core layer comprises an inner core, a coating layer coating the inner core, and an interdiffusion layer located between the coating layer and the inner core. The material of the inner core comprises lithium iron phosphate, the material of the coating layer comprises sodium vanadium fluorophosphate, and the material of the interdiffusion layer comprises vanadium-doped lithium iron phosphate. The core layer of the lithium iron phosphate composite material uses the lithium iron phosphate as the inner core, the sodium vanadium fluorophosphate coats the inner core, and the interdiffusion layer structure is provided between the inner core and the coating layer, such that the lithium iron phosphate composite material has excellent ion diffusion efficiency, a high theoretical specific capacity, a high voltage platform, a low powder resistivity, a stable charge-discharge platform, and excellent cycle performance while realizing mixed migration of Li/Na ions, and the electrochemical performance of the composite material, such as energy density and cycle performance, is effectively improved.
Resumen de: US20260341857A1
A top cover assembly, a battery and an electricity-consumption device. The top cover assembly includes a terminal post, a top cover, a upper plastic member, a pressing ring and a limiting body; the terminal post is connected to the top cover; the upper plastic member is sleeved on the terminal post, and is located between the top cover and the terminal post; the upper plastic member includes an upper plastic body and a positioning hole, the positioning hole passes through the upper plastic body; the pressing ring is sleeved on the terminal post; the limiting body is inserted through the positioning hole. A portion of the outer surface of the limiting body is interference-fitted to a portion of the inner surface of the positioning hole.
Resumen de: WO2026222893A1
The present invention relates to the technical field of lithium batteries, and in particular to an electrolyte and a preparation method for an electrolytic copper foil for a lithium battery. The electrolyte comprises the following components at the following concentrations: sulfuric acid at 105-120 g/L, a brightener at 15-120 mg/L, gelatin at 10-60 mg/L, a tensile-strength enhancer at 3-50 mg/L, a stabilizer at 5-55 mg/L, a wetting agent at 1-15 mg/L, Cl- at 10-30 mg/L, with the balance being water. The present invention can significantly improve the tensile strength of a copper foil while reducing the thickness thereof, with the tensile strength being greater than 700 MPa and the elongation being greater than 5.0%.
Resumen de: WO2026226585A1
A method can include: receiving an electroactive metal; comminuting the electroactive metal; optionally comminuting a salt; optionally processing battery components; and optionally assembling a battery. The method preferably functions to process an electroactive metal used for producing active material for metal conversion batteries, molten salt batteries, or sodium metal halide batteries. The battery can include a housing, electrodes (e.g., cathode, anode, etc.) electrolyte (e.g., solid electrolyte, secondary electrolyte, etc.), separator, and/or any suitable materials and/or components. The electrodes can be made from a mixture of particles of a brittle iron alloy and a salt.
Resumen de: WO2026223919A1
The invention relates to an AI-assisted energy management system (2) for a low-voltage on-board electrical system of a vehicle (1). It comprises, as software agents (LMA, PCA, SOA, SA), a load management agent (LMA) for prioritizing critical systems, a predictive charging agent (PCA) for optimizing battery charging cycles of a low-voltage battery, a standby optimization agent (SOA) for minimizing energy consumption during parking, and a supervising agent (SA) for coordinating energy distribution on the basis of driving profiles and environmental conditions (UB). The energy management system (2) uses machine learning and real-time vehicle data to increase the service life of the low-voltage battery, to reduce the power consumption in standby mode and to optimize the energy efficiency. The invention furthermore relates to a vehicle (1) and to an energy management method for a vehicle (1).
Resumen de: AU2024466542A1
Disclosed in the present application are a cover plate assembly and a battery. The cover plate assembly comprises a cover plate body, a monitoring device, conductive members and fixing members; the monitoring device is mounted on a side of the cover plate body, and is located between a first post and a second post on the cover plate body; the conductive members are connected to the monitoring device, the first post and the second post, are located between the cover plate body and the fixing members, and are used for fixing the conductive members. In the present application, there is no need to provide an individual power supply to supply power to the monitoring device, thereby reducing the number of parts.
Resumen de: WO2026224966A1
The present invention is a negative electrode active material that has negative electrode active material particles, wherein the negative electrode active material is characterized in that: the negative electrode active material particles contain a porous carbon structure serving as a base material; an amorphous low-valence nanosilicon oxide is dispersed within the porous carbon structure; an Si-C bond is present in at least a portion of the low-valence nanosilicon oxide; and, in a negative electrode that uses this negative electrode active material, nanosilicon and the low-valence nanosilicon oxide absorb and desorb Li and the Si-C bond is exposed during Li absorption. As a result, the present invention provides a negative electrode active material that suppresses electrolyte solution decomposition and as a result can improve the battery cycle characteristics and increase the capacity.
Resumen de: AU2024446362A1
A battery cell, a battery and an electric device. The battery cell comprises a casing component, a terminal post component and an electrode component, wherein the casing component comprises a mounting wall; the terminal post component is mounted on the mounting wall and comprises a terminal post body; the electrode component is accommodated in an accommodating cavity and comprises an active material coating portion, an electrically conductive portion and an insulating member; the electrically conductive portion is connected between the active material coating portion and the terminal post body; at least part of the insulating member is arranged between the end of the active material coating portion connected to the electrically conductive portion and the terminal post body; the insulating member is provided with an avoidance hole; and the insulating member is blocked between the part of the electrically conductive portion passing through the insulating member and connected to the terminal post body and the active material coating portion. In the technical solutions of the embodiments of the present application, the insulating member can reduce the risk of the mounting wall of the casing component corroding due to the exposure of the active material coating portion, and can also reduce the probability of the electrically conductive portion being incorrectly inserted into the active material coating portion due to redundancy, thereby being conducive to improving the operational
Resumen de: US20260341851A1
A battery case having excellent durability and a secondary battery including the same are disclosed. The battery case includes: (1) a first polymer layer; (2) a second polymer layer; and (3) a gas barrier layer disposed between the first polymer layer and the second polymer layer. The battery case further includes at least one cup portion curved in one direction, wherein a K value according to a following Equation (1) as described herein is 63.0 or more.
Resumen de: WO2026222941A1
The present invention relates to a method for preparing a positive electrode material by means of two-step sintering, a material, an electrode and a battery. The preparation method comprises: subjecting a lithium-containing compound, iron phosphate and a solid-state first carbon source to high-speed ball milling with anhydrous lower alcohol as a medium, and drying same, so as to obtain a precursor; subjecting the precursor to a first instance of calcination in an inert atmosphere, so as to obtain a powder sample; and subjecting the powder sample to a second instance of calcination in an inert atmosphere, and while the temperature thereof is maintained, introducing a liquid second carbon source until the reaction is finished. By means of a method that uses a combination of the solid carbon source and the liquid carbon source, the carbon coating content and uniformity of the positive electrode material can be effectively improved, thereby improving the carbon coating effect and cycle performance of the positive electrode material. By using a liquid carbon source for carbon coating via chemical vapor deposition, the safety of experiments can be improved, and transportation and storage are facilitated. Compared with a gaseous carbon source, the liquid carbon source has lower costs and is beneficial for improving the economic benefits of a product.
Resumen de: DE102026116766A1
Eine elektronische Einrichtung weist eine erste Batterie, eine zweite Batterie, die eine kleinere Kapazität als die erste Batterie aufweist, eine Ladeschnittstelle, die dazu eingerichtet ist, mit einer externen Ladeeinrichtung verbunden zu werden, und einen Energieverwaltungschip auf, der dazu eingerichtet ist, auf Grundlage einer virtuellen Energiequellenvorrichtung, welche die erste Batterie und die zweite Batterie charakterisiert, die erste Batterie und die zweite Batterie unter Verwendung der externen Ladeeinrichtung zu laden und einen Systemschaltkreis unter Verwendung der ersten Batterie und der zweiten Batterie mit Strom zu versorgen.
Resumen de: US20260341693A1
One-dimensional lithium manganese oxide nanorods with controllable diameter, and a preparation method therefor and use thereof are provided. Manganese sulfate, potassium permanganate, a structure-directing agent, and a surfactant are dispersed in a solvent to perform a hydrothermal reaction, thereby obtaining a black precipitate. The black precipitate is subsequently calcined to obtain manganese dioxide nanorods. The manganese dioxide nanorods are then mixed with lithium hydroxide and subjected to a two-step calcination process to obtain one-dimensional lithium manganese oxide nanorods. The nanorods exhibit uniform diameter and very low surface energy. When used as cathode materials, the nanorods can effectively shorten lithium-ion transport paths, resist agglomeration, and possess good flexibility. During long-term operation under high current, the nanorods can maintain structural integrity, which is favorable for improving electrode rate capability and cycling performance.
Resumen de: WO2026225785A1
A battery unit according to an embodiment of the present invention includes: an end plate including first and second end plates respectively covering both sides of a battery cell stack in which a plurality of battery cells are stacked; and a fixing strap having a first end connected to the first end plate and a second end connected to the second end plate to couple the battery cell stack and the end plate. Each of the first end and the second end of the fixing strap may include a fork-shaped locking part, and the end plate may include a reinforcing part engaged with the locking part.
Resumen de: AU2025374971A1
An integrated electrochemical cell and method for processing lithium brine to obtain recovered lithium and produce a lithium product in a single continuous process. The integrated cell has a catholyte chamber with an intercalating electrode for lithium recovery from a lithium brine streaming through the catholyte chamber. A first anion exchange membrane separates the catholyte chamber from a buffer chamber. The buffer chamber streams a salt of a brine-predominant anion (e.g., a chloride salt for lithium brine containing predominantly chloride salt, or a carbonate salt for lithium brine containing predominantly carbonate salt ) for removing the brine-predominant anion and thus preventing precipitation of salt species on first anion exchange membrane. An intermediate membrane separates the buffer chamber from a compatible anion chamber that streams a compatible salt that contains compatible or product anions desired for formation of the lithium product. A second anion exchange membrane separates compatible anion chamber from an anolyte chamber. The anolyte chamber has a lithium de-intercalating electrode for releasing lithium ions and it streams a lithium-bearing solution to obtain the lithium product through pairing of lithium ions with the product anions received from the compatible anion chamber via the second anion exchange membrane. A voltage source is provided for applying a potential difference between the electrodes to drive the process.
Resumen de: WO2026222917A1
Provided in the present disclosure are a sodium-ion battery and a preparation method therefor, an electric device, a carbon-based material and a secondary battery, wherein a negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, the negative electrode film layer comprises a carbon-based material, the carbon-based material comprises graphene sheets, and a space volume H1 between graphene sheets having an interlayer spacing of greater than 0.4 nm and the total space volume Htotal between all the graphene sheets satisfy: 40%≤H1/Htotal≤60%.
Resumen de: US20260341791A1
An electrolyte solution includes a Formula I compound, and based on a mass of the electrolyte solution, a mass percentage of the Formula I compound is W1%, where 2≤W1≤50. The negative electrode sheet includes a negative electrode current collector and a negative electrode material layer disposed on at least one surface of the negative electrode current collector. The negative electrode material layer contains silicon element, and based on a mass of the negative electrode material layer, a mass percentage of the silicon element is x %, where x≤25. A thickness of the negative electrode material layer is D μm, a surface of the negative electrode material layer is provided with a plurality of recesses, and a depth of the recess is d μm, where P=d/D, P≥0.1, and 0.4≤W1/(x×P)≤62.5.
Resumen de: WO2026223708A1
An end plate, comprising a tab support region and two electrode assembly support regions. The two electrode assembly support regions are respectively arranged on two sides of the tab support region. The midpoint of the end plate along a first direction protrudes in a direction facing away from an electrode assembly to form an arched structure.
Resumen de: US20260342124A1
An MCU of a module interface receives a detection signal of a cell voltage from a cell monitoring unit, and transmits a charge reduction signal for reducing charge power of a string to an MCU of a power converter when the cell voltage is equal to or larger than an upper limit threshold value. The MCU controls the power converter to bring the charge power of the string close to a charge power instruction value while a control signal is received from a string controller and a charge reduction signal is not received from the MCU, and controls the power converter to bring the charge power of the string close to the charge power instruction value while the control signal is received from the string controller and the charge reduction signal is received from the MCU.
Resumen de: US20260341826A1
The present invention relates to thermal management systems for batteries, particularly batteries used in electric vehicles (EVs), stationary generators, or other high-performance energy storage applications. An energy storage device including a major component that includes first and second major subcomponents configured to interconnect at a thermally isolable interface arranged therebetween. The first and second major subcomponents being constituent components of an electrochemical system that is configured to store energy for the energy storage device and cooled via fluid flow in a primary outlet direction across the thermally isolable interface. The first and second major subcomponents being arranged such that the first major subcomponent is thermally isolable from the second major subcomponent for a minimum isolation duration when the energy storage device experiences a detrimental thermal event.
Resumen de: WO2026223528A1
The present application relates to the technical field of vehicles. Provided are a cooling plate, a cooling device, a heat exchanger, a battery pack and a vehicle. The cooling plate comprises a split flow channel, wherein the split flow channel comprises a main flow channel and a plurality of branch flow channels; and each branch flow channel comprises: a plurality of main flow channel portions, one end of each main flow channel portion being in communication with the main flow channel, and any two main flow channel portions and the main flow channel forming a Y-shaped topological structure; and a plurality of primary sub-flow channel portions, one end of each primary sub-flow channel portion being in communication with the other end of the corresponding main flow channel portion, and any two primary sub-flow channel portions and the communicated main flow channel portion forming a Y-shaped topological structure. In the cooling plate of the present application, by means of the hierarchically designed Y-shaped topological structures, the split flow channel reduces the deviation in the flow rates of each branch, improves the flow distribution uniformity of a refrigerant, and ensures the temperature uniformity of a battery cell assembly to the greatest possible extent.
Resumen de: AU2025271528A1
Provided in the embodiments of the present application is a battery transport protection device. The battery transport protection device comprises a case body, measurement members and a fire-fighting mechanism. The case body has a first accommodating cavity used for accommodating batteries. The measurement members are arranged in the case body, and are used for measuring environmental parameters in the first accommodating cavity. The fire-fighting mechanism is arranged in the case body, and is used for releasing a fire-fighting medium to the first accommodating cavity when the environmental parameters exceed threshold values. The measurement members are provided to measure the environmental parameters in the first accommodating cavity, and when the environmental parameters measured by the measurement members exceed the threshold values, the fire-fighting mechanism releases the fire-fighting medium to the first accommodating cavity, so as to perform firefighting (fire extinguishing, cooling, etc.) on the batteries, thus reducing the risk of loss (casualties, property loss) caused by battery fires, and helping to improve the reliability of the battery transport protection device during battery transportation.
Resumen de: US20260341719A1
Proposed are a polyamide polymer including a first monomer unit containing a diamine residue having at least one carbonyl group on a backbone or side chain thereof, and a slurry, an electrode, a separator, and a secondary battery including the same.
Resumen de: WO2026223018A1
The present application discloses a quasi-solid-state electrolyte and a preparation method therefor, a battery, and an electric device. The preparation method comprises: mixing an electrolyte salt with a carbonate solvent to prepare a base electrolyte solution; and adding a diluent and an initiator into the base electrolyte solution to perform a reaction so as to prepare a quasi-solid-state electrolyte, wherein the diluent includes a cyclic monomer diluent capable of undergoing ring-opening polymerization, and the mass ratio of the diluent to the initiator to the base electrolyte solution is (30-70):(0.1-0.5):(30-70). In the present application, during preparation of the quasi-solid-state electrolyte, a precursor solution containing a locally high-concentration solvation structure is formed, and in-situ polymerization technology is used to prepare the quasi-solid-state electrolyte having low impedance, high ionic conductivity, excellent rate capability, and good safety. A battery assembled with the quasi-solid-state electrolyte prepared in the present application has excellent charging-discharging performance, and excellent cycle stability under a high-rate condition.
Resumen de: WO2026223074A1
Embodiments of the present application relate to a positive electrode sheet, a lithium-ion secondary battery, and an electrical device. The embodiments of the present application construct a theoretical formula by establishing a physical model, and establish a relational expression between the true density and Dv50 of a phosphate material and a ternary material, as well as the surface density and mass percentages of a first active layer and a second active layer in an electrode sheet structure. In addition, the present application takes into account the influence of intrinsic material parameters and the structure of the electrode sheet on safety performance and fast-charging performance, thereby more objectively and accurately achieving regulation of battery performance.
Nº publicación: US20260336434A1 29/10/2026
Solicitante:
GM GLOBAL TECH OPERATIONS LLC [US]
GM Global Technology Operations LLC
Resumen de: US20260336434A1
A direct current (DC) fast charging station includes a power source. A bidirectional power converter is connected to the power source. The bidirectional power converter includes an alternating current (AC) to DC (AC-DC) inverter connected to the power source and a DC-DC converter connecting the AC-DC inverter to a charger port. A charge controller is communicatively coupled to the charger port and is controllably coupled to the bidirectional power converter. The charge controller includes a memory storing instructions configured to cause the charge controller to impose an AC ripple current on an output of the DC-DC converter.
BOPI
Sede Electrónica
