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1255
resultados
Última actualización
10/02/2026 [07:21:00]
Resultados 725 a 750 de 1255
Resumen de: US20260031407A1
An electrode assembly includes a first electrode plate, a second electrode plate, and a separator that are wound to form a jelly-roll structure. The electrode assembly includes a first straight portion, a first curved portion, a second straight portion, and a second curved portion. The first straight portion and the second straight portion each include a first part, a second part, and a third part. Along a thickness direction of the first electrode plate, the first electrode plate is locally recessed in at least one of the first curved portion, the second curved portion, the first part, or the third part, so as to form a first recessed portion or portions. The first electrode plate at the first recessed portion is locally recessed to form a second recessed portion or portions. The first recessed portion and the second recessed portion are recessed in the same direction.
Resumen de: US20260031404A1
In an embodiment, a metal-ion battery cell comprises an anode electrode, a cathode electrode, a separator, and electrolyte ionically coupling the anode electrode and the cathode electrode. The anode electrode is a high-capacity electrode (e.g., in the range of about 2 mAh/cm2 to about 10 mAh/cm2). The electrolyte includes a solvent composition, the solvent composition including low-melting point (LMP) solvent(s) in the range from about 10 vol. % to about 80 vol. % of the solvent composition as well as regular-melting point (RMP) solvent(s) in the range from about 20 vol. % to about 90 vol. % of the solvent composition.
Resumen de: US20260031326A1
The present application relates to a lithium secondary battery, including comprising: a positive electrode, a silicon-based negative electrode, a separator provided between the positive electrode and the negative electrode, and an electrolyte. In the secondary battery according to the present application, the weight ratio of the silicon-based active material and the single-particle positive electrode active material is adjusted to solve the resistance problem, the cracking in high-voltage cells, and the gas generation issues.
Resumen de: US20260031409A1
Provided herein are phosphorus battery electrolyte additive chemicals for use in aqueous batteries that prevent self-discharge in the form of corrosion and hydrogen evolution, which increases the efficiency and extends the shelf-life of the batteries.
Resumen de: US20260031415A1
A secondary battery charging and discharging device includes: a first measurement part including: a first base portion; a first current probe joined to the first base portion, and to contact a first terminal of a secondary battery; and a temperature probe joined to the first base portion, spaced from the first current probe at an interval, and to measure a temperature of the secondary battery; and a second measurement part facing the first measurement part with the secondary battery therebetween, and including: a second base portion; and a second current probe joined to the second base portion, and to contact a second terminal of the secondary battery. The first current probe and the second current probe are to charge the secondary battery.
Resumen de: WO2026021530A1
The present application provides a positive electrode material and a preparation method therefor, a secondary battery, and an electric device. By optimizing the particle size of the positive electrode material to make the particle size and morphology distribution thereof meet the following condition: z=2.35+0.258*D150-0.121*D250-0.639*D3mo+0.3125*S+0.0142*n, where 2.3≤z≤2.79, the grading of large and small particles is facilitated, pores between the particles are filled, and the compaction density can be significantly improved, thereby solving the problems of relatively low energy density and relatively poor rate capability of batteries due to relatively low compaction density of electrode sheets caused by a relatively large number of pores between particles in existing lithium-iron-phosphate positive electrode materials.
Resumen de: WO2026021584A1
The present invention relates to a charging system and a temperature control apparatus. The charging system comprises a battery module; a charging device, which is configured to charge the battery module; a temperature regulation module, which is configured to regulate the temperature of the battery module; a temperature measurement module, which is configured to measure the temperature of the battery module; and a control module, which is configured to control and coordinate the operation of the temperature regulation module and the charging of the battery module on the basis of the temperature of the battery module. The temperature control apparatus comprises a housing; a battery pack mounting portion; a first vent, which is provided in the battery pack mounting portion, wherein when a battery pack is mounted to the battery pack mounting portion, the first vent is in communication with an air output hole of the battery pack; and a temperature control device, which comprises a temperature control element and an air suction fan, wherein when the battery pack is mounted to the battery pack mounting portion, the air suction fan is configured to drive an airflow passing through the temperature control element to flow into an air intake hole of the battery pack, pass through a battery cell in the battery pack, and then flow to the air output hole of the battery pack.
Resumen de: WO2026021610A1
A battery, comprising at least one battery cell (100), the battery cell (100) comprising an electrode sheet (10) and electrolyte sheets (130) which are stacked, wherein the electrode sheet (10) comprises a current collector (1), electrode material layers (2) and edge-coated structures (3), the electrode material layers (2) being disposed on the current collector (1) and falling within a region of the current collector (1), and the outer contour of the region where the electrode material layers (2) are located being at least partially spaced apart from the outer contour of the region where the current collector (1) is located and forming a support region (20); the edge-coated structures (3) are disposed in the support region (20); and the electrolyte sheets (130) cover at least part of the electrode material layers (2) and at least part of the edge-coated structures (3).
Resumen de: WO2026020551A1
A battery cell (100), a battery device (1100), and an electric device. The battery cell (100) comprises a casing (200) and an electrode assembly (101); the casing (200) is provided with electrode lead-out portions (2011); at least part of the electrode assembly (101) is provided in the casing (200); the electrode assembly (101) comprises a first electrode sheet (1); the first electrode sheet (1) comprises a current collector (10), a conductive member (30), and an active material layer (20); the conductive member (30) is electrically connected to the electrode lead-out portions (2011); the current collector (10) comprises an insulating substrate (11) and a metal layer (12); the insulating substrate (11), the metal layer (12), and the active material layer (20) are stacked in a thickness direction of the current collector (10); at least part of the metal layer (12) is located between the insulating substrate (11) and the active material layer (20); the metal layer (12) comprises a first metal portion (121) and a second metal portion (122) which are arranged in a first direction and connected to each other; the first direction is perpendicular to the thickness direction of the current collector (10); at least part of the first metal portion (121) is covered with the active material layer (20), and at least part of the second metal portion (122) is not covered with the active material layer (20); the conductive member (30) is welded to the surface of the second metal portion (122
Resumen de: WO2026020546A1
A battery cell (100), a battery device (1100) and an electric device. The battery cell (100) comprises a casing (200) and an electrode assembly (101). The casing (200) is provided with an electrode lead-out portion (2011). The electrode assembly (101) is accommodated in the casing (200); the electrode assembly (101) comprises a first electrode sheet (1) and a first insulating component (4). The first electrode sheet (1) comprises an electrically-conductive member (30), a current collector (10) and an active material layer (20). The current collector (10) comprises an insulating substrate (11) and a metal layer (12), wherein at least part of the metal layer (12) is located between the insulating substrate (11) and the active material layer (20); the electrically-conductive member (30) is used for electrically connecting the metal layer (12) and the electrode lead-out portion (2011). The electrically-conductive member (30) comprises a first connecting portion (31), wherein the first connecting portion (31) is located on the side of the metal layer (12) facing away from the insulating substrate (11) and is connected to the metal layer (12); the first insulating component (4) is attached to the first connecting portion (31). In the direction from the first connecting portion (31) to the active material layer (20), the first insulating component (4) protrudes beyond a first end face (31a) of the first connecting portion (31) facing the active material layer (20).
Resumen de: WO2026020547A1
The present disclosure provides a battery cell, a battery device, and an electric device. The length of the battery cell is L, and the width of the battery cell is H, wherein the value of L is four to ten times the value of H. The battery cell comprises an electrolyte, a first lithium salt additive in the electrolyte comprises at least one of fluoroborate and fluorophosphate, and the mass fraction of the first lithium salt additive is 0.01%-0.5%.
Resumen de: US20260031401A1
A battery that cycles lithium ions includes an electrolyte including an organic solvent and a lithium salt in the organic solvent. The organic solvent includes greater than or equal to 70 weight percent of a primary solvent including an alkyl alkanoate, ketone, nitrile, or a combination thereof. The electrolyte beneficially may be used in a battery that includes a positive electrode including an electroactive material including a layered nickel-rich lithium transitional metal oxide.
Resumen de: US20260031421A1
A manufacturing method for a recycled material that can easily obtain a copper foil as a recycled material from a lithium ion secondary battery is provided. The manufacturing method for a recycled material according to the present disclosure includes: a step of preparing a lithium ion secondary battery including a positive electrode, a negative electrode, and an electrolyte, the negative electrode including a copper foil and a negative electrode active material layer containing graphite as a negative electrode active material, in which a stage structure of the graphite is at least one stage selected from the group consisting of a stage 1, a stage 2, and a stage 3; a step of taking out the negative electrode from the lithium ion secondary battery; and a step of peeling the negative electrode active material layer from the copper foil by bringing the negative electrode and water into contact with each other.
Resumen de: US20260031327A1
The cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer disposed on the cathode current collector and including first cathode active material particles in the form of secondary particles and second cathode active material particles in the form of single particles. Each of the first cathode active material particles and the second cathode active material particles includes a lithium-manganese-containing oxide. A ratio of the number of moles of lithium to the number of moles of elements excluding lithium and oxygen in the lithium-manganese-containing oxide, represented by Li/Me, is 1.1 to 1.5. A weight ratio of the first cathode active material particles to the total weight of the first and second cathode active material particles is greater than 0.5 and less than 0.9.
Resumen de: US20260031317A1
Materials and methods for preparing dry cathode electrode film including reduced binder content are described. The cathode electrode film may be a self-supporting film including a single binder. The binder loading may be 3 weight % or less. In a first aspect, a method for preparing a dry free standing electrode film for an energy storage device is provided, comprising nondestructively mixing a cathode active material, a porous carbon, and optionally a conductive carbon to form an active material mixture, adding a single fibrillizable binder to the active material mixture, nondestructively mixing to form an electrode film mixture, and calendering the electrode film mixture to form a free standing electrode film.
Resumen de: WO2026021430A1
The present application relates to the technical field of mobile power supplies, and discloses a multifunctional power bank. The multifunctional power bank comprises a housing; a battery pack, a charging/discharging control circuit, and a laser drive circuit are provided inside the housing; a cigarette lighter port and a cigarette lighter cavity are provided on the housing; a semiconductor laser is provided inside the cigarette lighter cavity; window glass is provided between the semiconductor laser and the cigarette lighter port; a laser press switch is provided on the housing; the battery pack is electrically connected to the charging/discharging control circuit, the charging/discharging control circuit is electrically connected to the laser press switch, the laser press switch is electrically connected to the laser drive circuit, and the laser drive circuit is electrically connected to the semiconductor laser; the charging/discharging circuit comprises a mobile power supply charging/discharging chip, and the mobile power supply charging/discharging chip is separately electrically connected to the charging/discharging circuit and a status lamp display circuit. The stable operation of the semiconductor laser can be ensured, and the problem of poor operation stability of existing laser cigarette lighters integrated in power banks is solved.
Resumen de: WO2026021551A1
An end cover assembly (1), comprising: a first lead-out sheet (101) and a second lead-out sheet (102), the first lead-out sheet (101) extending in a first direction; the second lead-out sheet (102) is connected to the first lead-out sheet (101), and the second lead-out sheet (102) extends in a second direction, the first direction and the second direction being two intersecting directions.
Resumen de: WO2026021611A1
The present application provides a method for preparing a positive electrode slurry suitable for a battery cell of an electronic cigarette, a positive electrode sheet for an electronic cigarette, a battery cell, and a lithium-ion battery. The method for preparing a positive electrode slurry comprises the following steps: S1, stirring a binder and a first solvent at the speeds of W1 and V1 for t1 min to obtain a glue solution; S2, stirring the glue solution and a first conductive agent at the speeds of W2 and V2 for t2 min to obtain a first conductive slurry; S3, stirring the first conductive slurry and a second conductive agent at the speeds of W3 and V3 for t3 min to obtain a second conductive slurry; S4, stirring the second conductive slurry and a positive electrode active material at the speeds of W4 and V4 for t4 min to obtain a mixture; and S5, stirring the mixture and a second solvent at the speeds of W5 and V5 for t5 min to prepare a positive electrode slurry.
Resumen de: WO2026021330A1
The present application belongs to the technical field of lithium-ion battery preparation. Disclosed are an electrode sheet preparation device, an electrode sheet preparation method and an electrode sheet. The electrode sheet preparation device comprises a coating assembly and a magnetization assembly, wherein in the conveying direction of a substrate, the coating assembly is located upstream of the magnetization assembly; the coating assembly is configured to coat a coating surface of the substrate with a slurry; and the magnetization assembly is configured to magnetize particles in the slurry so as to change the arrangement direction of the particles in the slurry. The present application can change the arrangement direction of particles in a slurry on a substrate on the basis of ensuring the production efficiency of an electrode sheet, thereby ensuring the diffusion effect of lithium ions and improving the performance of a lithium-ion battery.
Resumen de: WO2026020389A1
The present disclosure provides a battery cell and an electric device. The battery cell comprises an electrode assembly. In the width direction of a positive electrode main body portion, the total width of a positive electrode tab portion is 50%-100% of the total width of the positive electrode main body portion; and in the width direction of a negative electrode main body portion, the total width of a negative electrode tab portion is 50%-100% of the total width of the negative electrode main body portion. The coating weight of a single negative electrode active material layer ranges from 0.1 g/1540.25 mm2 to 0.145 g/1540.25 mm2. An electrolyte comprises an organic solvent; the organic solvent comprises a first solvent; the first solvent comprises at least one of dimethyl carbonate and a linear carboxylic acid ester; the structural formula of the linear carboxylic acid ester satisfies R1-COO-R2, wherein R1 and R2 are each independently selected from C1-C5 alkyl or haloalkyl; and based on the total mass of the organic solvent, the mass fraction of the first solvent is 4%-72%.
Resumen de: WO2026020509A1
The present application relates to the technical field of secondary batteries. Disclosed are an electrolyte and a secondary battery. The electrolyte comprises a lithium salt, an ether solvent, a fluorinated solvent and an ether-based functionalized ionic liquid. When the electrolyte provided in the embodiments of the present application is applied to a lithium metal secondary battery, uniform deposition of lithium can be effectively regulated and controlled to generate a stable SEI film, interface charge transfer in a low-temperature environment is improved, and the service life of the secondary battery in a low-temperature environment is prolonged.
Resumen de: WO2026020583A1
A graphene-coated V3S4@NC material and a preparation method therefor and the use thereof. The material is composed of V3S4@NC and graphene coated on the surface of V3S4@NC, wherein V3S4@NC is of a core-shell structured nanofiber composite material with a V3S4 core and an NC shell. The method comprises the following steps: step I: adding a sulfur powder, vanadyl acetylacetonate (VO(acac)2), polyacrylonitrile (PAN), and graphene oxide to N-N dimethylformamide (DMF), stirring same for 12 h, followed by ultrasonic oscillation to obtain a mixed solution; step II: filling a syringe with the mixed solution obtained in step I, performing electrostatic spinning at a flow rate of 0.4 mL/h under a voltage of 18 kV, and collecting a product, so as to obtain a precursor; and step III: placing the collected precursor in a protective atmosphere, and annealing same at 800 ºC for 3 h to obtain a graphene-coated V3S4@NC material. The product can enable the reduced transport distance of sodium ions, and improvement of the electrochemical performance thereof.
Resumen de: WO2026020358A1
A battery device (1000) and an electrical device (1A) having same. The battery device (1000) comprises: a main box (200), the main box (200) defining an accommodating cavity (201); battery cells (300), provided in the accommodating cavity (201); a mounting beam (600), mounted on a bottom wall (202) of the main box (200) and forming an clearance channel (203) together with the bottom wall (202); a first expansion beam (100), detachably mounted on the mounting beam (600) and engaging with the battery cells (300); and a thermal management member (400), provided in the accommodating cavity (201) and engaging in heat exchange with the battery cells (300), wherein the thermal management member (400) is provided with an inlet portion (411) and an outlet portion (412), and at least one of the inlet portion (411) and the outlet portion (412) passes through the clearance channel (203).
Resumen de: US20260031325A1
A positive electrode for the lithium ion secondary battery includes a positive electrode current collector, and a positive electrode active material layer laminated thereon. The positive electrode active material layer includes a positive electrode first active material layer laminated on the positive electrode current collector, and a positive electrode second active material layer laminated on the positive electrode first active material layer, the positive electrode first active material layer includes a positive electrode first active material containing a lithium-containing composite oxide containing Li and Ni, the positive electrode second active material layer includes a positive electrode second active material containing a lithium-containing composite oxide containing Li and Ni, and a molar fraction of Ni in the positive electrode second active material of the positive electrode second active material layer is smaller than that of Ni in the positive electrode first active material of the positive electrode first active material layer.
Nº publicación: US20260031402A1 29/01/2026
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Resumen de: US20260031402A1
This application provides an electrolyte solution, a battery cell, a battery, and a power consuming apparatus. The electrolyte solution includes a solvent. The solvent includes a first solvent. The first solvent is an organosiloxane compound. The content of the first solvent is greater than or equal to 20% of the total weight of the solvent.
BOPI
Sede Electrónica
