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867
resultados
Última actualización
27/12/2025 [07:21:00]
Resultados 25 a 50 de 867
Resumen de: EP4668344A1
This application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery, and an electric apparatus including the same. The positive electrode active material includes a layered transition metal oxide represented by Formula (I), with parameters as defined herein. The positive electrode active material includes a K element, and an amount of the K element decreases from a particle surface to a particle interior of the positive electrode active material. NaxKyMaAbBcOmQn Formula (I)
Resumen de: EP4668460A1
Battery module (10) and battery pack are provided. Battery module (10) includes: body and second conductive sheet (2). Body has first conductive sheet (13) and electrode base. Second conductive sheet (2) has one end connected to first conductive sheet (13) and fixed to electrode base and other end configured to be connected to adjacent battery module (10). Second conductive sheet (2) is provided with first groove (21), first conductive sheet (13) extends into first groove (21), and conductive block (3) is further provided between first groove (21) and first conductive sheet (13). First conductive sheet (13) extends into first groove (21), which increases contact area between first and second conductive sheets, reduces resistance among battery modules, reduces amount of heat from second conductive sheet (2), and improves efficiency of transfer of current among battery modules (10). Conductive block (3) is provided between first groove (21) and first conductive sheet (13), which increases cross-sectional area at junction between second and first conductive sheets, and further reduces resistance among battery modules.
Resumen de: US2025087748A1
A composition for an electrolyte, in a precured state, can include polymeric precursor(s), salt(s), optional plasticizer(s), optional additive(s), optional inhibitor(s), and optional initiator(s). The salt(s), additive(s), inhibitor(s), and/or initiator(s) can additionally or alternatively act as plasticizers. The composition can be used to form a gel electrolyte (e.g., in the activated state) such as within a charge storage device (e.g., battery).
Resumen de: WO2024173731A1
An example embodiment includes a battery having a plurality of battery modules, each battery module comprising a plurality of battery cells; a pressure control system configured to provide fluid having a target fluid pressure that achieves a target pressure to be applied to respective battery cells of a battery module; and a thermal control system configured to supply coolant to the battery module to achieve a target temperature.
Resumen de: EP4668423A1
A secondary battery includes a cylindrical case, an electrode assembly accommodated in the cylindrical case, and a cap plate electrically connected to the electrode assembly and configured to seal the cylindrical case, wherein the cap plate includes a first flat portion at a center thereof, a second flat portion outside the first flat portion, and a connecting portion between the first flat portion and the second flat portion, and wherein a height of a top surface of the first flat portion is higher than a height of a top surface of the second flat portion.
Resumen de: EP4668406A1
Disclosed is an all-solid-state lithium-ion secondary battery in which a current collector contained in a lithium-free negative electrode is surface-treated with a lithium-friendly material, so that the surface-treated material induces a uniform lithium plating reaction on the current collector even during fast charging, thereby improving the performance. The all-solid-state lithium-ion secondary battery comprises a positive electrode, a solid electrolyte layer, a negative electrode current collector, and a negative electrode active material layer disposed between the solid electrolyte layer and the negative electrode current collector, wherein the negative electrode current collector comprises a base material; and a lithium-friendly layer located on a surface of the base material.
Resumen de: EP4667542A1
Provided are an aqueous coating composition, an aqueous pole piece, and an aqueous battery. The aqueous coating composition includes an aqueous binder and a solvent, the aqueous binder includes a first polymer, and the first polymer includes a structural unit represented by formula (1) and a structural unit represented by formula (2); in formula (1), R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub> are each independently hydrogen, a halogen, an alkyl, a hydroxyalkyl, an alkoxylate, a cycloalkyl, an alkenyl, an alkynyl, a heterocycloalkyl, an aryl, a heteroaryl, a hydroxyl, a cyano group or a nitro group, and L is a connecting bond or a C1-10 alkylene group; in formula (2), R<sub>4</sub>, R<sub>5</sub> and R<sub>6</sub> are each independently hydrogen, a halogen, an alkyl, a hydroxyalkyl, an alkoxy, a cycloalkyl, an alkenyl, an alkynyl, a heterocycloalkyl, an aryl, a heteroaryl, a hydroxyl, a cyano group or a nitro group, and n = 2-12. The aqueous coating composition can improve the adhesion and water resistance of an aqueous coating, thereby improving the safety performance and cycle performance of an aqueous battery.
Resumen de: EP4668462A1
Another embodiment of the present invention provides a lead tab comprising: a metal substrate including copper; a nickel-plated layer disposed on both sides of the metal substrate; and a metal layer on the nickel-plated layer, wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has an adhesive strength of 1.4 N/mm or more.
Resumen de: EP4668463A1
Another embodiment of the present invention provides a lead tab comprising: a metal substrate including copper; a nickel-plated layer disposed on both sides of the metal substrate; and a metal layer on the nickel-plated layer, wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has a welding strength of 48 kgf/mm<sup>2</sup> or more.
Resumen de: EP4668468A1
The present invention provides a lead tab including: a metal substrate including copper; a nickel-plated layer laminated on both sides of the metal substrate; and a metal layer on the nickel-plated layer, wherein the metal layer contains 70 to 99.9 wt% of chromium and wherein the lead tab has a gloss of 60 to 100 (Gs 60°), and has a water contact angle of 60 to 80°.
Resumen de: EP4668396A1
An electrolyte includes a compound represented by formula I, allowing for its reduction on a surface of a negative electrode plate to form a negative electrode interface protection layer, thereby reducing the side reactions between the negative electrode plate and the electrolyte. Moreover, a nitrogen atom in a pyridyl group of the compound represented by formula I is capable of stabilizing high-valence transition metal elements in a positive electrode plate, reducing the side reactions between the positive electrode plate and the electrolyte, and stabilizing an interface of the positive electrode plate.
Resumen de: EP4668369A1
Disclosed are a positive electrode, a preparation method thereof, and a rechargeable lithium battery including the same, the positive electrode including a positive electrode current collector; and a positive electrode active material layer located on the positive electrode current collector and including a positive electrode active material, a binder, and a conductive material; wherein the binder includes a first binder and a second binder, the first binder is a hydrogenated nitrile butadiene rubber, the second binder includes an imide-based binder, and the positive electrode active material layer includes about 300 to about 1,300 parts by weight of the second binder based on 100 parts by weight of the first binder.
Resumen de: WO2024173390A2
A lithium-ion battery cell includes an anode having a plurality of spaced apart lithium storage layer segments in electrical contact with the anode current collector, wherein the lithium storage layer segments include at least 40 atomic % silicon, tin, germanium; or a combination thereof. The cell includes a cathode having a cathode active material layer in electrical contact with a cathode current collector. The cell also includes a lithium-ion-containing solid-state electrolyte (SSE) that is i) interposed between the plurality of spaced apart lithium storage layer segments and the cathode active material, and ii) provided at least partially within gaps separating the spaced apart lithium storage layer segments. Methods of making the lithium-ion battery cell are also described.
Resumen de: WO2024173390A2
A lithium-ion battery cell includes an anode having a plurality of spaced apart lithium storage layer segments in electrical contact with the anode current collector, wherein the lithium storage layer segments include at least 40 atomic % silicon, tin, germanium; or a combination thereof. The cell includes a cathode having a cathode active material layer in electrical contact with a cathode current collector. The cell also includes a lithium-ion-containing solid-state electrolyte (SSE) that is i) interposed between the plurality of spaced apart lithium storage layer segments and the cathode active material, and ii) provided at least partially within gaps separating the spaced apart lithium storage layer segments. Methods of making the lithium-ion battery cell are also described.
Resumen de: EP4666885A1
An aerosol generating device includes a heater configured to heat an aerosol generating material, a battery that is rechargeable and configured to supply power to the heater, and a processor configured to control charge of the battery from an external power supply and configured to control an output of the battery to control a temperature of the heater, wherein the processor is further configured to monitor charge-discharge cycles of the battery and control a full charge voltage when charging the battery and the output of the battery, based on the charge-discharge cycles.
Resumen de: EP4668393A1
The present disclosure provides a nonaqueous lithium power storage element in which the positive electrode active substance layer contains lithium iron phosphate and a carbon material containing activated carbon as the positive electrode active substance. When the content of carbon material in the positive electrode active substance layer is X<sub>1</sub> (mass%) and the lithium iron phosphate content is X<sub>2</sub> (mass%), the lithium iron phosphate mass ratio (X<sub>2</sub>/(X<sub>1</sub>+X<sub>2</sub>)) is 0.40 to 0.85. The total pore volume of the positive electrode active substance layer is 0.29 cc/g to 0.70 cc/g, the void diameter D25 of the positive electrode active substance layer is 0.34 µm to 0.64 µm, the void diameter D75 of the positive electrode active substance layer is 0.10 µm to 0.20 µm, and the difference between the void diameter D25 and the void diameter D75 (D25-D75) is 0.20 µm to 0.45 µm.
Resumen de: WO2024173471A1
An iron anode employs an electrolyte for generating an anode reaction to convert between Iron II and Iron III ions, denoted by Fe(OH)2 and FeOOH, rather than tending towards formation of highly stable Fe3O4, which can tend to cause "dead" regions in the battery. A suitable battery chemistry includes iron-air and other iron metal batteries operable with an aqueous electrolyte and employing oxygen and water cathodes. The iron anode battery employs inexpensive available iron, rather than more expensive and/or volatile materials used in Li-ion and lead-acid batteries. An aqueous electrolyte formed from sodium hydroxide and silicates, optionally with potassium or chloride salts, forms an anode reaction with nanostructured iron oxide particles in a safe and stable battery chemistry which is readily scalable for grid storage.
Resumen de: EP4668398A1
The present application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery cell , a battery, and an electric device containing the same, where the positive electrode active material includes a matrix and a sodium-rich layer formed in situ on the surface of the matrix, the matrix includes a sodium-containing layered transition metal oxide, and the sodium-rich layer includes one or more of sodium salts represented by Formula (I) and Formula (II), where m represents an integer from 1 to 8, and n represents an integer from 2 to 20.
Resumen de: CN120677209A
The present disclosure relates to a flame retardant powder coating composition comprising: a) a film forming component; b) a source of phosphoric acid; and c) a filler material comprising clay, calcium carbonate, aluminum hydroxide or clay and silica. The present disclosure also discloses a substrate coated with the powder coating composition and a method of coating a substrate.
Resumen de: US2025360653A1
Set forth herein are materials, systems, and methods for sintering bilayers that include a layer of a metal and a layer of a ceramic.
Resumen de: CN120604314A
A separator for an electrochemical element is shown comprising fibrillated regenerated cellulose fibers wherein the fibrillated regenerated cellulose fibers constitute at least 75% of the mass of the separator. The quantity of the separator is at least 8 g/m2 and at most 17 g/m2, and the bulk of the separator is at least 12 mu m and at most 40 mu m. The membrane has uniformity in terms of its thickness and fibrous structure, characterized in that there are both the following features (i) and (ii): (i) the ratio of the bulk of the membrane to the monolithic thickness of the membrane is at least 0.88 and at most 1.04, and (ii) the contrast value C determined by image analysis is at least 1000 and at most 1600.
Resumen de: WO2024170765A1
A battery pack (30), related methods and to a transport refrigeration unit of a type configured to draw power from rechargeable batteries in cooling the interior of a mobile enclosure, such as in a trailer or lorry. The battery pack (30) comprises a framework (20) by which the pack is mounted in use and a battery compartment (40) for plural rechargeable battery cells (41). The framework may include at least one shelf for supporting the plural battery cells in the compartment, the shelf having at least one fluid flow channel (67) therein and the battery pack comprises at least one fluid movement device (62) arranged to move cooling fluid through the at least one channel to cool the battery cells in use. The framework may include plural vertically spaced shelves for supporting rows of the plural battery cells in the compartment, wherein the battery cells are orientated such that the terminals for connecting to the cells vertically on top.
Resumen de: WO2024170686A1
The invention relates to a battery housing cover (18) for covering at least one battery cell (10), comprising a main part (20), with at least one section (22) comprising a fibre composite with an oxide matrix being arranged on the main part (20). The invention also relates to a method for producing a battery housing cover (18), and an assembly comprising a battery cell (10) and a battery housing cover (18), the production of an assembly of this type, an electric vehicle and the use of a section (22) comprising a fibre composite with an oxide matrix for a battery housing cover (18).
Resumen de: WO2024170685A1
The invention relates to a battery housing cover (10) for covering at least one battery cell (26), wherein the battery housing cover (10) comprises a fibre composite with an oxide matrix. The invention also relates to a layer system (14) for a battery housing cover (10) with a first layer (16) made of a fibre composite with an oxide matrix and a second layer (18) made of a thermally insulating material. The invention further relates to the use of a fibre composite with an oxide matrix for a battery housing cover (10), a method for producing a layer system (14) and a method for producing a battery housing cover (10).
Nº publicación: EP4667867A1 24/12/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4667867A1
A weld step measurement apparatus according to an embodiment disclosed in this document includes a communication circuit, a processor, and a memory configured to store instructions, wherein the instructions may be executed by the processor for the weld step measurement apparatus to acquire 3-dimensional (3D) images of a predetermined area including electrodes stacked on a busbar of a battery from an image acquisition device via the communication circuit, identify step measurement points based on the 3D image, and determine the defectiveness of the battery based on depth values of each of the identified step measurement points.
BOPI
Sede Electrónica
