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POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND LITHIUM ION BATTERY

Resumen de: EP4718525A1

The present invention provides a positive electrode material and a preparation method thereof, and a lithium-ion battery. The positive electrode material includes a core, an oxygen-absorbing layer, and a passivation layer in sequence from inside to outside; the core includes an oxide composed of Ni, Li, a metal element M, and a non-metal element Q; the metal element M includes at least one of Mg, Al, Zr, Ca, Ti, Sr, Y, Nb, Mo, W, Ta, or Ce; the non-metal element Q includes at least one of F, B, P, or Si; the oxygen-absorbing layer is an unsaturated oxide including a coating element L; the coating element L includes at least one of V, Ga, In, Sn, Bi, Ce, Pr, or Sb; the passivation layer is a compound including element F. In the present invention, the effect of suppressing evolution of gaseous oxygen can be achieved by the functional design of different layered structures for the positive electrode material.

VEHICLE BATTERY HEAT TRANSFER MEMBER AND VEHICLE BATTERY MODULE

Resumen de: EP4718581A1

A vehicle battery heat transfer member according to one embodiment of the present invention, which is disposed between battery cells to transfer heat generated in the battery cells toward a cooling plate, may include a main plate in which cooling channels are formed such that an operating fluid passes through the cooling channels and cover plates coupled to both surfaces of the main plate, wherein a bridge part connecting the cooling channels in a width direction may be formed between the cooling channels in the main plate.

STORAGE BATTERY

Resumen de: EP4718673A1

Die Erfindung betrifft einen Akkumulator (1, 2), vorzugsweise Arbeitsgeräteakkumulator, Gartengeräteakkumulator und/oder Werkzeuggeräteakkumulator, insbesondere IoT-Arbeitsgeräteakkumulator,IoT-Gartengeräteakkumulator und/oder loT-Werkzeuggeräteakkumulator, mit zumindest einer Energiespeichereinheit (10) und mit zumindest einer Steuereinheit (5, 6) zum Steuern und/oder Überwachen des Akkumulators (1, 2) und/oder eines mit dem Akkumulator (1, 2) gekoppelten Endgeräts (3, 4). Ferner umfasst der Akkumulator (1, 2) zumindest eine, insbesondere bidirektionale, Akkudatenschnittstelle (7, 8) und die Steuereinheit (5, 6) derart ausgebildet und/oder eingerichtet ist, dass diese über die Akkudatenschnittstelle (7, 8) mit zumindest einer weiteren Steuereinheit (5, 6) zumindest eines weiteren Akkumulators (1, 2), insbesondere bidirektional, kommunizieren kann.

ACCUMULATOR AND METHOD FOR OPERATING AN ACCUMULATOR

Resumen de: EP4718677A1

Die vorliegende Erfindung betrifft einen Akkumulator (1), insbesondere loT-Akkumulator, mit wenigstens einer Akkumulatorzelle (2) zur Aufnahme, Speicherung und Abgabe von Energie, einer Energieschnittstelle (3) zur Verbindung des Akkumulators (1) mit einem Endgerät und/oder einer externen Energiequelle, und einer Steuerung (4) zum Steuern der wenigstens einen Akkumulatorzelle (2) und/oder der Energieschnittstelle (3). Außerdem betrifft die Erfindung ein Verfahren zum Betreiben eines Akkumulators (1). Es wird vorgeschlagen, dass der Akkumulator (1) eine loT-Steuereinheit (5) umfasst, wobei die loT-Steuereinheit (5) ausgebildet ist, Steuerbefehle für die Steuerung (4) und/oder Statusinformationen des Akkumulators (1) zu erzeugen.

ELECTROLYTE COATING, SOLID-STATE BATTERY AND ELECTRICAL DEVICE

Resumen de: EP4718558A1

Disclosed are an electrolyte coating, a solid-state battery and an electrical device. The electrolyte coating is coated on the surface of a solid-state electrolyte. The solid-state electrolyte includes one or both of a sulfide electrolyte and a halide electrolyte, wherein the electrolyte coating is a copolymer of tridecafluorooctyl methacrylate and n-butyl methacrylate. By coating the electrolyte coating on the surface of the sulfide electrolyte and the halide electrolyte, the present disclosure significantly increases the stability thereof in the air (even with high humidity) on the premise of not substantially affecting the conductivity thereof.

ANODE MATERIAL, NEGATIVE ELECTRODE PLATE AND SECONDARY BATTERY

Resumen de: EP4718521A1

Provided is an anode material, a negative electrode plate and a secondary battery. The anode material includes a core body and a carbon coating layer that coats at least a partial surface of the core body, and the core body includes a matrix and an active substance. A 10-day gas production A of the anode material is less than or equal to 100 mL/kg, and the 10-day gas production A is measured by a drainage method. A residual carbon rate of the anode material is γ=m3−m2m1×100%, which is less than or equal to 20%. The secondary battery based on the above anode material has lower electrode plate expansion rate, great capacity and cycle stability.

BATTERY BOX AND BATTERY PACK

Resumen de: EP4718604A1

A battery box and a battery pack, wherein the battery box comprises a box body (10) having a frame and a bottom plate (12), wherein the frame and the bottom plate (12) are enclosed to form an accommodating cavity (11), and the accommodating cavity (11) is used for accommodating cells (20); a bracket (30) disposed in the accommodating cavity (11), the bracket (30) is used for bearing the cells; and a supporting member for supporting the bracket (30), so as to form a pressure relief space (13) between the bracket (30) and the bottom plate (12).

ACCUMULATOR AND METHOD FOR OPERATING AN ACCUMULATOR

Resumen de: EP4718682A1

Die vorliegende Erfindung betrifft einen Akkumulator (1), insbesondere IoT-Akkumulator, mit wenigstens einer Akkumulatorzelle (2) zur Aufnahme, Speicherung und Abgabe von Energie, einer Energieschnittstelle (3) zur Verbindung des Akkumulators (1) mit einem Endgerät und/oder einer externen Energiequelle, und einer ersten Steuereinheit (4) zum Steuern der wenigstens einen Akkumulatorzelle (2) und/oder der Energieschnittstelle (3). Außerdem betrifft die Erfindung ein Verfahren zum Betreiben eines Akkumulators (1). Erfindungsgemäß zeichnet sich der Akkumulator (1) dadurch aus, dass die erste Steuereinheit (4) einen ersten Steuerkern (5) und einen zweiten Steuerkern (6) umfasst oder dass der Akkumulator (1) zusätzlich zur ersten Steuereinheit (4) eine zweite Steuereinheit (7) umfasst.

RECHARGEABLE BATTERY WITH A RECHARGEABLE BATTERY DATA INTERFACE

Resumen de: EP4718675A1

Die Erfindung betrifft Akkumulator (1), vorzugsweise einen Arbeitsgeräteakkumulator, insbesondere IoT-Akkumulator und/oder IoT-Arbeitsgeräteakkumulator,mit zumindest einer Energiespeichereinheit (2) und mit zumindest einer Steuereinheit (3) zum Steuern und/oder Überwachen des Akkumulators (1) und/oder eines mit dem Akkumulator (1) gekoppelten Endgeräts (4). Der Akkumulator (1) umfasst zumindest eine Akkudatenschnittstelle (5) zum Datenaustausch mit einer externen Einheit (9, 10, 11) und/oder dem Endgerät (4).

SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY INCLUDING SAME

Resumen de: EP4718511A1

A negative electrode for a secondary battery according to exemplary embodiments may include: a negative electrode current collector; a first negative electrode active material layer formed on at least one surface of the negative electrode current collector and including a first negative electrode active material which contains at least one of a first carbon-based active material or a first silicon-based active material; and a second negative electrode active material layer formed on the first negative electrode active material layer and including a second negative electrode active material, which contains at least one of a second carbon-based active material or a second silicon-based active material, and a conductive polymer. Accordingly, resistance can be reduced without increasing the content of a conductive material, and rapid charging performance can be improved.

LITHIUM SECONDARY BATTERY

Resumen de: EP4718526A1

A lithium secondary battery according to embodiments of the present disclosure comprises: a positive electrode containing a first positive electrode active material; and a negative electrode containing a silicon-based active material, wherein the first positive electrode active material comprises: lithium-nickel metal oxide particles; and a coating layer disposed on the surface of the lithium-nickel metal oxide particles and including at least one selected from the group consisting of a lithium-phosphorus-containing compound, a lithium-sulfur-containing compound, a lithium-tungsten-containing compound, and a lithium-aluminum-containing compound. The lithium secondary battery of the present disclosure can achieve improvements in high-temperature lifespan characteristics and rapid charge/discharge lifespan characteristics and a reduction in the amount of gas generated.

METHOD FOR MANUFACTURING LEAD TERMINAL FOR POWER STORAGE DEVICE, AND LEAD TERMINAL FOR POWER STORAGE DEVICE

Resumen de: EP4718488A1

Provided is a method of manufacturing a lead terminal for a power storage device, the lead terminal including: an electrode terminal (2) formed of a wire material (100) mainly containing aluminum or copper; and a lead wire (3) connected to the electrode terminal through intermediation of a welded portion (4), the method including: a first step of aligning the wire material and the lead wire in a straight line, and holding the wire material and the lead wire under a state in which a distance between an end surface (100b) of the wire material on the lead wire side and an end surface (3b) of the lead wire on the wire material side is maintained at a predetermined distance; a second step of applying, by a laser irradiation machine (400), a laser beam to an end portion (100a) of the wire material on the lead wire side to melt the end portion; and a third step of pushing one of the wire material or the lead wire toward another one of the wire material or the lead wire in an axial direction after an elapse of a predetermined time from a time point of start of irradiation with the laser beam in the second step to form the welded portion.

EXTERIOR MATERIAL FOR POWER STORAGE DEVICE AND POWER STORAGE DEVICE

Resumen de: EP4718592A1

A power storage device packaging material at least includes a substrate layer, a barrier layer including a metal layer, an adhesive layer, and a sealant layer in this order. The adhesive layer contains a hydrophobic insulating inorganic filler. The content of the hydrophobic insulating inorganic filler in the adhesive layer may be 0.5 to 20 mass%.

ELECTRODE FOR SECONDARY BATTERIES, AND SECONDARY BATTERY

Resumen de: EP4718508A1

Provided is an electrode for secondary batteries, which is capable of suppressing deterioration of rapid charge and discharge characteristics. An electrode (30) for secondary batteries constitutes a winding-type electrode body provided with a band-like core body (32) and a mixture layer (34) disposed on the core body (32), and is characterized in that: a longitudinal-direction-side first exposed portion (36), in which the mixture layer (34) is not disposed, is provided at one end part in the longitudinal direction of the core body (32); the longitudinal-direction-side first exposed portion (36) is covered with a first insulating portion (38); and a short-direction-side first exposed portion (44), in which the mixture layer (34) is not disposed, is provided at a position separated from both end parts in the longitudinal direction of the core body (32) at one end part in the short direction of the core body (32).

VANADIUM OXIDE COMPOSITE AND BATTERY USING SAME

Resumen de: EP4718533A1

A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide; and an electrically conductive material at least partially coating a surface of the particle. A surface coverage of the particle by the electrically conductive material is 30% or more. The vanadium oxide composite has an average particle size of 0.5 µm or more and 5.0 µm or less.

ELECTROLYTE WITH HIGH LIFSI CONCENTRATION

Resumen de: CN121175838A

The present invention relates to an electrolyte composition comprising:-5% to 70% by weight of a lithium salt of bis (fluorosulfonyl) imide; -20-85% by weight of at least one organic solvent. The invention also relates to an electrochemical cell and a battery using such an electrolyte composition.

BATTERY SYSTEM WITH EMBEDDED CHARGING COIL

Resumen de: US2024396106A1

A battery system for an electronic device includes a rechargeable battery component, an induction coil, circuitry, a ferrite layer, and a cover. The induction coil is mounted on a side of the rechargeable battery component and electrically connected to a charging terminal of the battery. The circuitry is connected to the induction coil and the charging terminal of the rechargeable battery component and is configured to manage current flow and voltage levels between the induction coil and the rechargeable battery component. The cover is formed of a dielectric material and encapsulates the rechargeable battery component, the induction coil, and the circuitry. A ferrite layer is optionally interposed between the induction coil and the rechargeable battery component.

VANADIUM OXIDE COMPOSITE AND BATTERY USING SAME

Resumen de: EP4718531A1

A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide represented by a composition formula (1) Li3+x+aV1-xMxO4+a/2; and an electrically conductive material at least partially coating a surface of the particle. In the composition formula (1), 0 < a < 1 and 0 ≤ x < 1 are satisfied, and M is at least one element selected from the group consisting of a tetravalent metal element and a tetravalent metalloid element.

TITLE OF THE INVENTION: A PLASMA PRINTING PROCESS TO MANUFACTURE AND PRODUCE BATTERY ELECTRODES AND ENHANCE CUNENT COLLECTORS

Resumen de: CN121399723A

Embodiments of the invention provide binderless electrodes for electrochemical devices fabricated using plasma printing processes. The process (100) includes depositing an electroactive material on a current collector to form an electrode in a continuous electrolytic plasma process. The invention does not depend on chemistry when the electroactive material is mechanically bonded to the surface of the current collector, and various materials can be deposited on the current collector. A solid state battery manufactured using the process is also disclosed.

CASING, BATTERY PACK AND VEHICLE

Resumen de: EP4718579A1

Provided are a casing, a battery pack and a vehicle. The casing comprises a liquid cooling plate and a side panel connected to the upper surface of the liquid cooling plate and arranged around the circumference of the liquid cooling plate; the liquid cooling plate comprises a body and an outer connecting plate surrounding the periphery of the body; the upper surface of the outer connecting plate is distant from the side panel relative to the upper surface of the body; the lower surface of the side panel comprises a first step surface and a second step surface; the first step surface is opposite to the upper surface of the body; the second step surface protrudes towards the outer connecting plate relative to the first step surface; a sealing member is provided between the first step surface and the upper surface of the body; and the second step surface is attached to and sealedly connected to the upper surface of the outer connecting plate.

VANADIUM OXIDE COMPOSITE AND BATTERY USING SAME

Resumen de: EP4718532A1

A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide represented by a composition formula (1) Li3+x+aV1-xMxO4+a/2; and an electrically conductive material at least partially coating a surface of the particle. In the composition formula (1), 0 < a < 1 and 0 ≤ x < 1 are satisfied, and M is at least one element selected from the group consisting of a tetravalent metal element and a tetravalent metalloid element. The vanadium oxide composite has an average particle size of 0.5 µm or more and 5.0 µm or less.

METHOD AND SYSTEM FOR PREDICTING A STATE OF HEALTH OF A BATTERY

Resumen de: WO2024240873A1

There is described a method for predicting a state of health, SOH, of a redox flow battery, the method comprising: receiving battery data of the redox flow battery; and performing, using a machine learning agent, an analysis of the battery data to predict the SOH of the redox flow battery.

APPLIANCE LEVEL BATTERY-BASED ENERGY STORAGE

Resumen de: EP4718672A2

A powered building system that includes an electric power distribution system configured to distribute electrical power to a plurality of receptacles; one or more load sources; and one or more battery systems associated with: a respective receptacle of the plurality of receptacles and a respective load source of the one or more load sources.

ELECTRODE ASSEMBLY

Resumen de: EP4718554A1

An electrode assembly includes a stack and a second separator. The stack includes first and second electrodes and a first separator folded in a zigzag configuration and including spacer sections and respective side sections between the spacer sections. The first and the second electrodes are alternately disposed between first separator spacer sections The second separator extends along an upper surface, a lower surface, and at least one pair of opposing side surfaces of the stack. The side sections of the first separator define portions of the side surfaces of the stack on which the first electrode and the second electrode are not disposed. The second separator is bonded to at least one of the side sections.

PHYSICAL MEASUREMENT ON THE CORE OF AN ELECTROCHEMICAL ACCUMULATOR

Nº publicación: EP4718097A1 01/04/2026

Solicitante:

COMMISSARIAT ENERGIE ATOMIQUE [FR]
Commissariat \u00E0 l'Energie Atomique et aux Energies Alternatives

Resumen de: EP4718097A1

La présente invention concerne un système (10) de mesure physique au coeur d'un accumulateur (12) présentant deux bornes de puissance distinctes (16,18) comprenant :- un capteur inductif (20) à l'intérieur dudit accumulateur ;- un ensemble (22) d'éléments électriques externes audit accumulateur de sorte à former, avec ledit au moins un capteur inductif, un circuit résonant dans une première plage de fréquence prédéterminée ;- un module de mesure (26), externe audit accumulateur, configuré pour:- exciter ledit circuit électrique résonant, via un balayage en fréquence en pilotant une tension d'alimentation sur une deuxième plage de fréquence prédéterminée étendue comprenant ladite première plage ;- mesurer au moins une fréquence de résonance résultant de ladite excitation ;- obtenir une valeur d'une grandeur physique interne dudit accumulateur à partir de ladite au moins une fréquence de résonance mesurée.