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1832
resultados
Última actualización
05/07/2025 [08:21:00]
Resultados 100 a 125 de 1832
Resumen de: US2025219170A1
The present disclosure relates to a battery manufacturing system including: a first rack and a second rack, each of which includes a charging and discharging room including an inlet on one surface and accommodating a plurality of battery cells through the inlet, and which are aligned in parallel with each other; and a transport crane, which is provided between the first rack and the second rack, introduces and withdraws a plurality of battery cells accommodated in a charging and discharging transport member into and out of the charging and discharging room through the inlets arranged to face each other, and is movable in the height direction of the first rack or the second rack and in a direction perpendicular to the height direction, and a controlling method thereof.
Resumen de: US2025219153A1
A cylindrical battery comprises an electrode body formed by winding a positive electrode and a negative electrode. The positive electrode includes: a positive electrode core on which a positive electrode tab is welded at a point along the winding direction; and a positive electrode mix layer which is formed on both surfaces of the positive electrode core. The positive electrode tab includes slit burrs which are formed at the ends in the width direction. In a state in which the positive electrode is wound, the positive electrode tab is welded so that the slit burrs are positioned outside the winding and on the side opposite the surface where the positive electrode tab is welded to the electrode core.
Resumen de: US2025214862A1
It is an object of the present invention to improve a volumetric energy density while maintaining a capacity retention rate of an active material that constitutes an electrode of a lithium-ion secondary battery. Provided is a method of producing a sulfur-based active material, the method comprising the steps of: (1) mixing an acrylic resin, sulfur, and an iron compound comprising a divalent or trivalent iron ion to obtain a raw material; and (2) baking the raw material; wherein the iron compound has a median diameter of 12.00 μm or less.
Resumen de: US2025215646A1
A separator for an electrochemical element is shown, in which at least 50% of the mass of the separator is formed by fibrillated regenerated cellulose fibers, wherein, including the fibrillated regenerated cellulose fibers, at least 70% and at most 100% of the mass of the separator is formed by cellulose fibers, and wherein the separator is calendered, and wherein under tensile load in the machine direction in accordance with ISO 1924-2:2008, the separator reaches its 0.1% yield point at an elongation of no less than 0.5% and no more than 2.0%. A method of manufacturing such a separator is also disclosed.
Resumen de: US2025216366A1
An inspection method of an elongated coated sheet including: (i) at a starting end position located at a position of a starting-end predetermined distance from a coating starting end, measuring a starting-end moisture amount and comparing the starting-end moisture amount with a starting-end specified value; (ii) at a terminal end position located at a position of a terminal-end predetermined distance from a coating terminal end, measuring a terminal-end moisture amount and comparing the terminal-end moisture amount with a terminal-end specified value; and (iii) when the starting-end moisture amount is smaller than the starting-end specified value and the terminal-end moisture amount is smaller than the terminal-end specified value, regarding the elongated coated sheet between the starting end position and the terminal end position as an acceptable product.
Resumen de: US2025215523A1
Black mass from disused lithium batteries is leached for recovery of various metals in a process that includes precipitation, solvent exchange, ion exchange, and salt splitting to create multiple product streams for recovery of pure value products. Most typically, the process is a closed-loop process and allows for production of metallic cobalt and nickel, EMD, and a high purity lithium hydroxide or carbonate product with minimal generation of waste streams.
Resumen de: US2025215527A1
This method for leaching an electrode material is a method for subjecting an electrode material of a lithium ion secondary battery to acid leaching, the method including a leaching step of reacting the electrode material of a lithium ion secondary battery with sulfuric acid to obtain a leachate in which metals contained in the electrode material are leached, in which the leaching step includes a sulfuric acid adding step of adding the sulfuric acid to the electrode material to obtain a sulfuric acid-added electrode material, a kneading step of kneading the sulfuric acid-added electrode material to form a leaching paste, and a diluting step of diluting the leaching paste with water.
Resumen de: US2025218716A1
A protective element includes a fuse element having a cut portion between a first end portion and a second end portion and electrified in a first direction from the first end portion toward the second end portion; a movable member, having a projection portion, and a recessed member having a recessed portion allowing the projection portion to be inserted therein, which are disposed facing each other such that the cut portion is sandwiched therebetween; and a pressing means applying a force so as to shorten a relative distance in a direction in which the cut portion is sandwiched between the movable member and the recessed member. The cut portion is cut due to the force of the pressing means at a temperature equal to or higher than a softening temperature of the fuse element. The cut portion of the fuse element has one of or both a penetration hole and a thin portion in at least part thereof.
Resumen de: WO2025138407A1
An electric vehicle endurance system composed of battery formation and electrolyte injection, ventilation, and cooling systems, comprising a battery formation and electrolyte injection system, a battery case air filtration system and an annular battery cell cooling system which are arranged on an electric vehicle. When the electric vehicle is used, the temperature of an annular battery cell rises during operation of the annular battery cell, and the annular battery cell cooling system reduces the temperature of the annular battery cell. The battery case air filtration system is responsible for discharging and supplementing gas generated during the operation of the annular battery cell. The electrolyte lost during the operation of the annular battery cell is supplied by the battery formation and electrolyte injection system. The present application can simultaneously provide the following formation methods, i.e., low-temperature formation, small current formation and open formation; the formation process of the annular battery cell is delayed to the electric vehicle; and low-temperature formation, small current formation and open formation are realized on the electric vehicle. Battery cells and battery cases produced by means of the method are transported across countries and continents by air to designated locations for installation in electric vehicles before being formed.
Resumen de: WO2025138431A1
A positive electrode active material and a lithium-ion battery. The positive electrode active material is lithium iron phosphate coated with a carbon layer, and the ID/IG value of the positive electrode active material is 0.75-1.2. In the Raman spectrum of the positive electrode active material, the peak intensity at a wave number of 1360 cm-1 is used as ID, and the peak intensity at a wave number of 1580 cm-1 is IG.
Resumen de: WO2025138412A1
A balloon lamp power quick-release structure, comprising: a lamp base (100) supported on the ground; a battery module (200) sliding in a direction perpendicular to the ground and detachably connected to the lamp base (100), wherein the battery module (200) comprises a pole (201) and a plurality of batteries provided in the pole (201); and a locking assembly (300) fixing the pole (201) on the lamp base (100). By means of the motion of a handle (450), the apparatus can control the closure and output power magnitude of the batteries, which means that a user can regulate the degree of closure and brightness level of a light bulb by means of a simple mechanical mode, that is, the movement of the handle (450). A mechanical control switch structure is more durable and reliable, and easier to maintain, and may be more durable in some environments.
Resumen de: WO2025138925A1
The present application discloses a sealing performance testing device and a battery cell manufacturing apparatus. The sealing performance testing device comprises a test chamber, a negative pressure mechanism and a helium leak detection device. The test chamber comprises an accommodation compartment, and the accommodation compartment is used for accommodating battery cells. The negative pressure mechanism is communicated with the accommodation compartment, and the negative pressure mechanism is used for vacuumizing the accommodation compartment. The helium leak detection device is communicated with the accommodation compartment. Helium is contained in the battery cells, and the sealing performance testing device is used for detecting helium leaking into the accommodation compartment from the battery cells. The above structure allows for sealing performance testing of battery cells, reduces the impact of residual helium after a helium filling process on test results, and improves the testing efficiency and accuracy.
Resumen de: WO2025138116A1
The present disclosure provides an electrolytic method for valuable metal ions in waste lithium battery powder, comprising the following steps: obtaining n different types of waste positive electrode battery powder, wherein n is greater than or equal to 2, and n is a positive integer; classifying the n types of waste positive electrode battery powder to separately obtain anode treatment mixed powder and cathode treatment mixed powder; separately carrying out slurry preparation operation on the anode treatment mixed powder and the cathode treatment mixed powder to obtain an anode slurry and a cathode slurry; carrying out ionization operation on the anode slurry and the cathode slurry by means of an electrolytic device; and filtering the cathode slurry that has undergone the ionization operation to obtain a cathode post-electrolysis liquid, i.e., a valuable metal ion solution. Efficient and comprehensive ionization recovery of valuable metal ions in two or more types of waste positive electrode powder is achieved, and the operation is simple and environmentally-friendly.
Resumen de: WO2025138906A1
An energy storage cabinet (1) and an energy storage electrical cabinet (10). The energy storage cabinet (1) comprises: a cabinet body (11); a barrier plate (13), which divides a converter compartment (115) into a cold air cavity (1151) and a hot air cavity (1152), the cold air cavity (1151) being in communication with air inlets (1111), and the hot air cavity (1152) being in communication with air outlets (1121); and an energy storage converter (14), which is provided with a heat dissipation air duct, air intake ports (141) being in communication with the cold air cavity (1151), and air discharge ports (142) being in communication with the hot air cavity (1152).
Resumen de: US2025214839A1
The present disclosure discloses a porous iron phosphate and a preparation method thereof. The preparation method includes the following steps: (1) mixing a phosphorus-iron solution with an aluminum-containing alkaline solution to allow a co-precipitation reaction; (2) subjecting a reaction system obtained in step (1) to solid-liquid separation (SLS) to obtain a precipitate; (3) subjecting the precipitate obtained in step (2) to a reaction with phosphine under heating; (4) after the reaction is completed, cooling a product obtained in step (3), and soaking the product in a weak acid solution; and (5) subjecting a system obtained in step (4) to SLS to obtain a solid, and subjecting the solid to aerobic calcination to obtain the porous iron phosphate.
Resumen de: US2025214484A1
A power supply control device has a charging/discharging unit and a control unit that controls the charging/discharging unit. The charging/discharging unit performs a discharging operation for supplying power to a load based on power from a power storage unit, a regeneration operation for supplying power to a power supply unit based on power from the power storage unit, and a charging operation for supplying power to the power storage unit based on power from the power supply unit. The control unit determines the degree of degradation of the power storage unit, based on the value of a voltage of the power storage unit and the value of a current flowing through the power storage unit during at least one of the regeneration operation and the charging operation performed after the regeneration operation.
Resumen de: US2025214840A1
Process for the manufacture of a fluoride doped cathode active material with olivine crystal structure wherein said process comprises the steps of (a) providing a source of phosphate, source of metal other than lithium selected from iron and, optionally, of at least one further element M1 selected from titanium, vanadium, nickel, yttrium, copper, magnesium, zinc, aluminum, cobalt and manganese, wherein at least 55 mol-% of said metal other than lithium is iron, and wherein said source may be formed from one or more compounds, (b) providing a source of lithium that contains 0.01 to 2.5% by weight of fluoride, uniformly dispersed within said source of lithium, wherein the source of lithium is selected from lithium hydroxide and lithium carbonate, (c) mixing said source of phosphate, of transition metal with said fluoride-containing source of lithium and with additional source of lithium containing less fluoride, and, optionally, with hydrocarbon, (d) optionally, performing a reaction between at least two components of the mixture from step (c), thereby obtaining an adduct, (e) treating the mixture obtained from step (c) or the adduct from step (d) at a temperature in the range of from 400 to 1000° C. under a reducing or inert atmosphere
Resumen de: US2025214838A1
One embodiment of the present disclosure includes a method of producing high-purity alkali metal sulfide including mixing an alkali metal sulfide salt precursor and a reducing agent to form a mixture, reducing the mixture to obtain alkali metal sulfide; and purifying the obtained alkali metal sulfide.
Resumen de: US2025219248A1
Disclosed are a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the separator for a rechargeable lithium battery including a porous substrate; a heat resistant layer on one surface of the porous substrate; and an adhesive layer on the other surface of the porous substrate, wherein the heat resistant layer includes a first binder and inorganic particles, the first binder includes at least one selected from polyacrylate, polyacrylic acid, polyacrylonitrile, polyvinyl alcohol, polysulfonic acid, polyacrylamide, polyamide, polyurea, polyurethane, and a copolymer thereof, the adhesive layer includes a second binder and a third binder, the second binder includes a copolymer including a first unit derived from a vinyl aromatic monomer, a second unit derived from an alkyl acrylate, and a third unit derived from a phosphonate-based monomer, and the third binder includes a fluorine-based polymer.
Resumen de: US2025219173A1
This charge control device charges a lithium metal battery, which is a secondary battery in which lithium metal is used in a negative electrode, using a prescribed normal charge mode and a recovery charge/discharge mode. In the recovery charge/discharge mode, the lithium metal battery is temporarily discharged and then is charged for a longer time than in the normal charge mode. A detection unit detects a battery voltage, which is the voltage of the lithium metal battery. A calculation unit calculates the self-discharge rate of the lithium metal battery on the basis of a change in the battery voltage. A recording unit records a history of the self-discharge rate. An assessment unit assesses the need for charging by the recovery charge/discharge mode on the basis of a change in the self-discharge rate in time series in the history.
Resumen de: US2025219211A1
A secondary battery is disclosed. The secondary battery includes an electrode assembly, a case including an opening for insertion of the electrode assembly, and a cap plate including a bonding area welded to the case and closing the opening. The bonding area may include one or more support surfaces in contact with and supported by the case; and one or more chambers formed with a portion of the bonding area spaced apart from the case by the support surface.
Resumen de: US2025219151A1
A sodium secondary battery includes a positive electrode plate, a negative electrode plate, a first electrolyte located on the side of the positive electrode plate, and a second electrolyte located on the side of the negative electrode plate, where the first electrolyte and the second electrolyte contain different organic solvents, the first electrolyte contains an ester solvent, a sulfone solvent, or a fluoroether solvent, and the second electrolyte contains an ether solvent or an amide solvent. With different organic solvents matched with the positive/negative electrode plate respectively, the electrochemical stability window width of the battery is optimized while gas generation and swelling of the battery are alleviated.
Resumen de: US2025219164A1
A positive electrode plate includes a positive electrode current collector and a positive electrode active material layer. A safety coating is provided between the positive electrode current collector and the positive electrode active material layer, and the safety coating is disposed on a surface of the positive electrode current collector. The safety coating contains substance I, and the substance I is formed by dehydration of a first substance via a drying process of the positive electrode plate, where the first substance includes silica sol and/or alumina sol. The surface of the current collector of the positive electrode plate is provided with the safety coating, where the safety coating has good high-temperature resistance and can effectively protect the aluminum foil at high temperatures, thereby enhancing the thermal safety performance of the lithium-ion battery.
Resumen de: US2025219155A1
An electrochemical cell including: a first electrode including iron, wherein a density (D) of the iron in the first electrode is greater than 2.11 g/cm3 and less than 7.87 g/cm3, based on a total weight of the iron and a total volume of the first electrode; an alkaline electrolyte; a second electrode; and an additive comprising a metal M, wherein the additive is effective to facilitate oxidation of the iron to Fe3-xMxO4, wherein 0≤x<1, and wherein a specific discharge capacity (Q) of the first electrode in the first discharge plateau is represented by Formula 1:Q>((7.87/D)−1)*352 mAh/gram of iron, based on a total weight of iron in the first electrode (1).
Nº publicación: US2025219150A1 03/07/2025
Solicitante:
CONTEMPORARY AMPEREX TECH HONG KONG LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
Resumen de: US2025219150A1
A lithium-ion battery and an electric apparatus are disclosed. The lithium-ion battery includes: a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The separator is located between the positive electrode plate and the negative electrode plate. When the lithium-ion battery is charged at 1C to a state of charge of 80% SOC, a potential Panode of a negative electrode satisfies: 0.09 V (vs. Li+/Li)<Panode<0.15 V (vs. Li+/Li).
BOPI
Sede Electrónica
