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PRESSURE SENSOR, BATTERY CELL, AND ELECTRICAL DEVICE

Resumen de: EP4600622A1

ABSTRACTA pressure sensor (400) including an electrode layer (40) and a sensitive layer (42). The sensitive layer (42) is provided with at least two types of protrusion structures (422) of different heights. Each type of the protrusion structure (422) includes at least one protrusion. Each protrusion is located on a side of a base layer (420) facing the electrode layer (40), and the area of contact between each protrusion and the electrode layer (40) is configured to vary with changes in pressure applied to the electrode layer (40). In this way, the pressure sensor (400) can adapt to detection environments under various pressures, thereby effectively increasing the detection range of the pressure sensor (400) and improving the detection sensitivity of the pressure sensor (400). Further provided is a battery cell (20) and an electrical device.

CATHODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, CATHODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY

Resumen de: EP4601038A1

The present disclosure relates to a positive electrode active material of a lithium-rich manganese-based oxide that exhibits improved capacity characteristics as well as excellent life characteristics and rolling characteristics, and a method for preparing the same. The positive electrode active material includes a lithium-rich manganese-based oxide represented by the following Chemical Formula 1, and having a structure in which a rock-salt-type lithium manganese oxide and a layered lithium transition metal oxide are mixed, wherein the lithium-rich manganese-based oxide may have a prescribed internal porosity.        Chemical Formula 1     LiaNibCocMndMeO2in Chemical Formula 1, 1.00

POLE PIECE, BATTERY CELL, ELECTRODE ASSEMBLY, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4601110A1

This application discloses an electrode plate, a battery cell, an electrode assembly, a battery, and an electrical device, and relates to the field of battery technology. The electrode plate includes a current collector. The current collector includes a main body and a plurality of tabs. The main body includes a first edge in a width direction of the main body. The tabs protrude from the first edge. The plurality of tabs are spaced apart along a length direction of the main body. The plurality of tabs include at least one first tab. The first tab includes a first sub-tab and a second sub-tab. A gap exists between the first sub-tab and the second sub-tab. This application weakens the bending strength of the first tab, reduces the difficulty of bending the first tab under pressure, and reduces the risk of excessive deformation of the main body caused by an excessive external force required for bending the first tab under pressure, thereby improving reliability of the battery cell.

METHOD FOR PRODUCING ELECTRODE LAYER

Resumen de: EP4601028A1

Provided is a manufacturing method of an electrode layer, including a step A of forming an electrode material film on a collector foil, where the collector foil is transported using a transport member in which a plurality of pallets are connected in one direction, along a connection direction of the pallets, a step B of spacing the connected pallets apart from each other to divide a laminate of the collector foil and the electrode material film for each one pallet, and a step C of transporting the pallet on which the divided laminate of the collector foil and the electrode material film is placed along the connection direction of the pallets, and measuring a density and a thickness of the electrode material film using an X-ray examination device.

BATTERY CELL AND BATTERY MODULE

Resumen de: EP4601111A1

A battery cell (100A) includes a positive electrode tab (110A). The positive electrode tab (110A) includes a first base part (111A), a first upper end part (112A) decreasing in thickness away from the first base part (111A), and a first upper projection part (114A) that is positioned between the first base part (111A) and the first upper end part (112A) and protrudes further outward than the first base part (111A).

ELECTRODE SHEET AND ELECTROCHEMICAL DEVICE

Resumen de: EP4601060A1

An electrode and an electrochemical apparatus are provided. The electrode includes a current collector, an active layer, and an insulation layer. The active layer is coated on at least one surface of the current collector. The insulation layer is coated on the at least one surface of the current collector and connected to a periphery of the active layer. The insulation layer includes a water-based binder and an inorganic material, and a peel strength of the insulation layer after being immersed in water for 1 minute at a preset temperature is less than or equal to 7N/m. During recycling process of the electrode and the electrochemical apparatus, by performing water immersion, the current collector and the insulation layer in the electrode have relatively low peel strength, so that the current collector may be fully and efficiently recycled, resulting in high recycling rate of the electrode and the electrochemical apparatus.

LITHIUM-ION BATTERY, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE

Resumen de: EP4601065A1

A lithium-ion battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte, where the electrolyte includes a first additive, and the first additive includes at least one of a compound represented by formula I-A or a compound represented by formula II-A as defined in the specification of this application. The lithium-ion battery satisfies: 0.05≤Cpositive/X≤1.5, where Cpositive mg/mm<2> represents a surface density of a positive electrode active substance layer of the positive electrode plate, and X% represents a mass percentage of the first additive in the electrolyte.

CHARGING/DISCHARGING TEST SYSTEM AND METHOD FOR CONTROLLING CHARGING/DISCHARGING TEST SYSTEM

Resumen de: EP4600674A1

A charge/discharge test system includes a bidirectional AC/DC converter (12) connected to an AC power supply (an AC power supply (9)), an isolated bidirectional DC/DC converter (22) that has one end connected to a first DC bus (14) and the other end connected to a second DC bus (24), a plurality of non-isolated bidirectional DC/DC converters (26) that have one ends connected to the second DC bus (24) and the other ends connected to charge/discharge targets (batteries (6)) different from each other, and a charge/discharge controlling unit (ET control unit (28)). The charge/discharge controlling unit charges power output from at least one of the charge/discharge targets via the non-isolated bidirectional DC/DC converter (26) into at least one of the charge/discharge targets via the second DC bus (24) and at least one of the non-isolated bidirectional DC/DC converters (26).

BATTERY CASE

Resumen de: EP4601091A1

The present disclosure relates to a battery box, including: a case, where a top portion of the case is provided with an opening; and a top cover including a cover body; where the top cover further includes a boss connected to an edge of the cover body, and the boss is welded to the case to co-seal the opening with the cover body; the boss has a first top portion and an opposite first bottom portion, the cover body has a second top portion and an opposite second bottom portion, a distance between the first top portion and the first bottom portion is greater than a distance between the second top portion and the second bottom portion, and the first bottom portion is provided with a guide portion.

POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4601033A1

The present disclosure relates to the technical field of the battery, and specifically to a cathode material and a preparation method therefor, and use thereof. The cathode material of the present disclosure has a core-shell structure, wherein a core layer includes elements Li, Ni, M, Q, and O; a shell layer includes elements X and A; the core layer has a transition layer with an oxygen vacancy; the oxygen vacancy can be detected by XPS; an XPS peak position is at 529~533 eV; and the transition layer is close to the shell layer, wherein the element M includes at least one of Co, Mn, and Al; the element Q includes at least one of Mo, Nb, W, Ta, and B; the element X includes at least one of Mo and B; and the element A includes at least one of C, S, and N. In the cathode material of the present disclosure, the shell layer on the surface can improve the electronic conductivity, and the transition layer has the oxygen vacancy defect, which can effectively reduce the trend of the oxygen release. Through the coordination and cooperation of each layer structure, the cathode material has excellent structure stability and high capacity.

BATTERY PACK MANAGEMENT DEVICE AND OPERATION METHOD THEREOF

Resumen de: EP4600677A1

A battery pack management apparatus according to an embodiment disclosed herein includes a communication unit configured to receive voltages of any one battery cell group of a plurality of battery cell groups from each of a plurality of sensors configured to measure voltages of the any one battery cell group and a controller configured to calculate a median of voltages of each of the plurality of battery cell groups, calculate a voltage deviation of a plurality of battery cells of the plurality of battery cell groups with respect to a median of the voltages of each of the plurality of battery cell groups and diagnose whether any one battery cell of the plurality of battery cells is abnormal by comparing the voltage deviation of each of the plurality of battery cells with a threshold value.

POSITIVE ELECTRODE FOR ELECTROLYSIS AND METHOD FOR PRODUCING SAME

Resumen de: EP4600408A1

An anode for electrolysis in which electrolysis performance is less likely to deteriorate even when electric power having a large output fluctuation, such as renewable energy, is used as a power source and in which excellent catalytic activity is stably maintained for a long period of time is provided. The anode for electrolysis 10 includes a conductive substrate 2 in which at least a surface of the conductive substrate 2 is formed of nickel or a nickel-based alloy; and a first layer 4 formed on the surface of the conductive substrate 2, the first layer 4 being capable of functioning as a catalyst layer containing a lithium-containing nickel cobalt oxide represented by a composition formula LixNiyCo2O4 (0.05 ≤ × ≤ 1.0, 1.0 ≤ y ≤ 2.0, 1.0 ≤ z ≤ 2.0, and x + y + z = 2 to 3).

CHARGING CONTROL METHOD AND APPARATUS, AND ELECTRONIC DEVICE

Resumen de: EP4601146A1

This application discloses a charging control method and apparatus, and an electronic device, and pertains to the field of communication technologies. The method includes: in a case that a charger is connected, detecting values of a first flag and a second flag of a charging chip register, where the first flag is used to indicate a charging status, and the second flag is used to indicate a magnitude relationship between a battery voltage and a system voltage; and changing a current charging stage based on a change in a value of at least one of the first flag and the second flag.

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4601032A1

The present invention relates to a negative electrode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery comprising same. More specifically, the negative electrode active material comprises one selected from Li_1.1Ti_0.9O₂ and a mixture in which Li_1.1Ti_0.9O₂ and carbon nanotubes (CNTs) are mixed in a weight ratio of 8: 2 to 9: 1. The negative electrode active material for a lithium secondary battery, comprising the above-described components has an R-3m structure, and provided is a lithium secondary battery which exhibits high capacity and excellent lifespan characteristics, and in particular, exhibits high capacity during high-rate charging and discharging.

SOLID ELECTROLYTE COMPOSITION, SOLID ELECTROLYTE FORMED THEREFROM, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4601064A1

A solid electrolyte composition according to the present disclosure comprises an amine-based compound represented by the following Chemical Formula 1; a multifunctional isocyanate; and a lithium salt, wherein the content of the lithium salt is 40 to 80 parts by weight based on 100 parts by weight of the amine-based compound. Chemical Formula 1 In Chemical Formula 1, L₁ and L₂ are each independently selected from one or more of a C₁-C₁₂ alkylene group or heteroalkylene group, a C₃-C₁₆ cycloalkylene group or cycloheteroalkylene group, a C₆-C₁₆ arylene group or heteroarylene group, and Chemical Formula 2, wherein n is a natural number in the range of 1 to 5,000, and m is a natural number in the range of 1 to 200.

ANODE ACTIVE MATERIAL FOR SECONDARY BATTERIES AND SECONDARY BATTERY INCLUDING SAME

Resumen de: EP4601031A1

An anode active material for a lithium secondary battery according to exemplary embodiments includes a core particle; a crown ether coating formed on the core particle and including crown ether; and conductive particles formed on the crown ether coating or within the crown ether coating. Accordingly, the crown ether coating including the crown ether compound may improve stability and reduce resistance, while the conductive particles may enhance output characteristics.

Agencement de régulation de température permettant de réguler la température d’un composant, en particulier d’un véhicule électrique à batterie

Resumen de: FR3159051A1

L’invention concerne un agencement de régulation de température (20) permettant de réguler la température d’un composant (22). L’agencement de régulation de température (20) comprend un circuit de régulation de température (21) dans lequel un agent de régulation de température (T) peut circuler et dans lequel est disposé le composant (22) dont la température doit être régulée, de sorte que de la chaleur peut être transmise entre ledit composant (22) et l’agent de régulation de température (T). En outre, l’agencement de régulation de température (20) comprend un dispositif de transport (23) permettant d’entraîner l’agent de régulation de température (T) dans le circuit de régulation de température (21). En outre, l’agencement de régulation de température (20) comprend un récipient de stockage (1) disposé dans le circuit de régulation de température (21) et permettant le stockage intermédiaire de l’agent de régulation de température (T). Le récipient de stockage (1) comprend un boîtier (2) qui entoure un espace intérieur de boîtier (3) pouvant être traversé par l’agent de régulation de température (T) et permettant de recevoir l’agent de régulation de température (T). En outre, le récipient de stockage (1) comprend une entrée pour fluide (5) disposée sur le boîtier (2) et présentant une ouverture d’entrée (4), laquelle entrée pour fluide permet d’introduire l’agent de régulation de température dans

Vase d’expansion pour liquide

Resumen de: FR3159048A1

L’invention concerne un vase d’expansion pour liquide (1) comportant un espace de réception (3) permettant de recevoir le liquide de refroidissement et un espace de trop-plein (4) permettant de recevoir le liquide de refroidissement en excès provenant de l’espace de réception (3). L’espace de réception (3) et l’espace de trop-plein (4) sont alors reliés de manière fluidique par l’intermédiaire d’un canal de trop-plein (5). Figure pour l’abrégé : Fig. 1

Module d’alimentation

Resumen de: FR3159049A1

L’invention concerne un module d’alimentation (1) comportant un vase d’expansion pour liquide (2) et un vase d’expansion pour air (3). Le vase d’expansion pour li-quide (2) et le vase d’expansion pour air (3) sont formés dans un boîtier (4) commun. Figure pour l’abrégé : (Figure 1)

SYSTEME DE TRACTION DE VEHICULE ELECTRIQUE OU HYBRIDE COMPRENANT DEUX BOUCLES DE FLUIDE DE RÉGULATION THERMIQUE

Resumen de: FR3158911A1

Système de traction de véhicule électrique ou hybride comprenant un circuit de régulation thermique comportant une première boucle de circulation (8) disposant d’une première pompe de circulation de fluide (20), d’au moins un refroidisseur (22) ou un réchauffeur (24), d’une batterie de traction (26) et d’une première vanne de distribution du fluide (6), comportant une deuxième boucle de circulation (12) disposant d’une deuxième pompe de circulation de fluide (32), de composants électriques (34) comprenant une machine de traction, d’un échangeur thermique vers l’extérieur (38) et d’une deuxième vanne de distribution du fluide (10), la première boucle (8) et la deuxième boucle (12) comportant des fluides qui sont différents, et une motorisation commune (16) actionnant en même temps les deux vannes de distribution (6, 10). Figure 1

Procédé de contrôle de la température d’au moins une capacité adaptée pour un chargeur embarqué.

Resumen de: FR3159047A1

L’invention concerne un procédé pour optimiser la durée de vie d’au moins une capacité d’un module de capacités (400) d’un dispositif électronique (100), ledit dispositif électronique (100) étant adapté pour charger une batterie haute tension (600) d’un véhicule électrique, ledit dispositif comportant un circuit correcteur de facteur de puissance (300), un convertisseur continu-continu DC/DC (500), un dispositif de refroidissement (700) adapté pour refroidir au moins une capacité du module de capacités (400), un second capteur de température (910) disposé sur au moins une capacité du module de capacités (400) et adapté pour mesurer une température réelle de ladite au moins une capacité, le procédé comportant les étapes suivantes : une première étape a1) consistant à activer le chargeur (100) pour charger la batterie haute tension (600),une deuxième étape a2), consistant à charger la batterie haute tension (600) par le chargeur (100) avec une première puissance de consigne (P1_cons). Figure pour l’abrégé : Fig 3.

Structure à circulation de fluide caloporteur

Resumen de: FR3159008A1

Titre : Structure à circulation de fluide caloporteur L’invention concerne une structure à circulation de fluide caloporteur (1) configurée notamment pour former un dispositif de régulation thermique (100) pour le refroidissement et/ou le chauffage de composants dont le fonctionnement est sensible à la température, ces composants étant notamment destinés au stockage d’énergie et pouvant être des cellules de batterie, la structure à circulation de fluide caloporteur (1) comportant au moins un canal de circulation de fluide caloporteur (10) formé entre une première plaque (3) et une deuxième plaque (5) soudées entre elles, le long d’au moins une ligne de soudure laser (4), le canal (10) présentant au moins une zone morte (8) à une jonction entre les première plaque (3) et deuxième plaque (5), la zone morte (8) étant comblée par un matériau de comblement (20) distinct des matériaux des première plaque (3) et deuxième plaque (5). Figure pour l’abrégé : Figure 1

DALLE DE REFROIDISSEMENT POUR UN BAC DE BATTERIE À BARRETTES DE CONNEXION INTÉGRÉES

Resumen de: FR3159050A1

L'invention porte sur une dalle de refroidissement (5) pour un bac de batterie comportant : - une première plaque (14.1) de forme plane, - une deuxième plaque (14.2) ayant au moins une zone de forme ondulée destinée à définir au moins en partie des canaux de refroidissement, et - au moins une barrette de connexion (13) liée mécaniquement à la première plaque (14.1) par l'intermédiaire d'un élément intercalaire (16) électriquement isolant disposé entre la première plaque (14.1) et la barrette de connexion (13). Figure 5

ALL-SOLID-STATE BATTERY

Resumen de: WO2025165117A1

An all-solid-state battery according to present disclosure includes a cell stack including a solid electrolyte layer, a positive electrode layer, and a negative electrode layer, wherein the solid electrolyte layer is interposed between the positive electrode layer and the negative electrode layer, and a coating layer located on one or both surfaces in a stacking direction of the cell stack, or on one or both surfaces in a width direction of the cell stack, wherein the coating layer includes a silane-modified acrylic resin, and a surface energy of the coating layer is less than or equal to about 40 dyne/cm.

BATTERY CELL HEATING DEVICE

Nº publicación: WO2025165110A1 07/08/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
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Resumen de: WO2025165110A1

The present application can provide a battery cell heating device for heating a battery cell comprising a body portion and an electrode tab extending from the side surface of the body portion, the battery cell heating device comprising: a first jig plate for supporting one surface of the body portion; and a second jig plate for supporting the other surface of the body portion, wherein the first jig plate and/or the second jig plate surrounds the side surface of the body portion.