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1455
resultados
Última actualización
14/08/2025 [07:17:00]
Resultados 175 a 200 de 1455
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
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
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.
Resumen de: WO2025165093A1
An anode active material according to the present application comprises a silicon-based active material having a grain size of about 300 nm or less. The silicon-based active material has a value of about 2.00 or less as defined by the formula of (D90-D10)/D50, and the silicon-based active material includes one or more selected from SiOx (x=0) and SiOx (0
Resumen de: WO2025165090A1
The present invention relates to a negative electrode slurry, a negative electrode, a lithium secondary battery, a battery module, and a battery pack comprising: a silicon carbon composite having a pH of 6 to 8 and a silicon content of 40 parts by weight to 60 parts by weight with respect to 100 parts by weight in total of the silicon carbon composite; a cellulose-based binder; and a conductive material.
Resumen de: WO2025165091A1
Disclosed are a heat exchanger, a manufacturing method therefor, and an apparatus including the heat exchanger. The disclosed heat exchanger comprises at least one heat exchange channel that performs heat exchange with a heat exchange object in a predetermined heat exchange area. The heat resistance between the at least one heat exchange channel and the heat exchange object in a first region of the heat exchange area is different from the heat resistance between the at least one heat exchange channel and the heat exchange object in a second region of the heat exchange area.
Resumen de: WO2025165038A1
Disclosed are: a solid electrolyte for an all-solid-state battery, which can be protected from moisture by chemically reacting a sulfide-containing solid electrolyte with an amphiphilic compound, for example, a material such as a surfactant; and an all-solid-state battery comprising such a solid electrolyte. The solid electrolyte for an all-solid-state battery is surface-modified with an amphiphilic compound having both hydrophilic and hydrophobic groups.
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.
Resumen de: WO2025162359A1
The present application relates to the technical field of secondary batteries, and in particular to an electrode assembly, a battery cell and a secondary battery. The electrode assembly comprises a first electrode sheet, a second electrode sheet and a separator. The first electrode sheet comprises a first electrode material and a second electrode material, the expansion rate of the first electrode material being greater than that of the second electrode material. The first electrode sheet has differently stressed positions, the greater the stress on a position, the greater the mass proportion of the first electrode material at the position.
Resumen de: WO2025162385A1
The present invention relates to the field of batteries, and in particular to a battery. The battery of the present invention comprises a positive electrode sheet and a negative electrode sheet, wherein the positive electrode sheet comprises a first carbon nanotube, a recessed portion is formed on the surface of the negative electrode sheet, and a ratio of the depth of the recessed portion to the tube diameter of the first carbon nanotube is (300-5,000):1. The battery of the present invention can effectively mitigate the lithium precipitation problem of a negative electrode sheet, and has both high energy density and fast charging capability.
Resumen de: WO2025162272A1
A battery cell. At least one end of a battery cell casing (100) forms an opening, and the inner wall surface of the battery cell casing (100) comprises an interlocking section (111) located on the side close to the opening. The interlocking section (111) is welded to the body (210) of a cover plate (200), the depth of the interlocking section (111) is d, and the thickness L2 of the body (210) satisfies: L2-0.5≤d≤L2+0.5, wherein L2≥0.5 mm. By using the described assembly size relationship, the matching degree between the body (210) of the cover plate (200) and the battery cell casing (100) is high, and the welding strength and the welding yield are high.
Resumen de: WO2025162335A1
A battery protection plate, comprising a first continuous fiber reinforced resin layer, a fiber reinforced resin layer, and a second continuous fiber reinforced resin layer which are sequentially stacked. A metal plate and a foam layer are present between the first continuous fiber reinforced resin layer and the fiber reinforced resin layer; the fiber reinforced resin layer is a short fiber reinforced resin layer or a fiber mat reinforced resin layer; and the thickness ratio of the metal plate, the foam layer, and the fiber reinforced resin layer is (0.25-5):(0.6-8):(1-12). The fiber reinforced resin layer and the foam layer provided in the battery protection plate can achieve an excellent buffering and energy absorption effect, further improving the impact resistance of the battery protection plate. When the battery protection plate is in use, the applied stress can be evenly distributed, and no excessively high or low local impact force is caused, thereby preventing breakage or failure of the battery protection plate. In addition, the fiber reinforced resin layer and the foam layer can also achieve a weight reduction effect, thereby achieving a lightweight and high-strength technical effect.
Resumen de: WO2025161609A1
An electrolyte, a lithium-ion battery, and an electric device. The electrolyte comprises a borate additive, and the mass fraction w1 of the borate additive in the electrolyte falls within the range: 0.01%≤w1≤2%. The electrolyte further comprises a sulfur-containing additive, and the mass fraction w2 of the sulfur-containing additive in the electrolyte falls within the range: 0.01%≤w2≤2%. A ratio of the mass fraction w2 of the sulfur-containing additive to the mass fraction w1 of the borate additive falls within the range: 0.5≤w2/w1≤1.2.
Resumen de: WO2025161411A1
A secondary battery and a preparation method therefor, and an electric device. The secondary battery comprises a positive electrode sheet and a negative electrode sheet; the positive electrode sheet and/or the negative electrode sheet comprise a current collector (10) and an active material layer (11); the active material layer (11) is provided on at least one side of the current collector (10); the active material layer (11) comprises an additive, and the additive is provided with through holes; and the tortuosity of the active material layer (11) is 1.9-5.68. In this way, the transmission path of an electrolyte can be shortened, and the transmission rate of the electrolyte on the positive electrode sheet and/or the negative electrode sheet can be increased, thereby improving the infiltration effect of the electrolyte on the electrode sheet, improving the exertion of a capacity per gram of the electrode sheet, and improving the rate performance and the energy density of batteries.
Resumen de: WO2025161622A1
Disclosed in the present application are a thermal management component, a battery, and an electric device. The thermal management component is provided with a liquid intake flow channel, a first main flow channel, a second main flow channel, and a first group of flow channels and a second group of flow channels arranged side by side in a first direction, wherein in a second direction, the first main flow channel is provided with a first inflow end, and the second main flow channel is provided with a second inflow end, the second direction intersecting with the first direction; the first group of flow channels includes at least one first sub-flow channel, the first inflow end being in communication with the liquid intake flow channel through the first group of flow channels; the second group of flow channels includes at least one second sub-flow channel, the second inflow end being in communication with the liquid intake flow channel through the second group of flow channels; and in the second direction, the projection of the first group of flow channels falls within the projection of the first inflow end, and the projection of the second group of flow channels falls within the projection of the second inflow end. In the direction of liquid flow in the liquid intake flow channel, the second group of flow channels is located downstream of the first group of flow channels, and the sum of the cross-sectional areas of the second group of flow channels is greater than the sum of t
Resumen de: WO2025165027A1
An apparatus for applying pressure to a battery cell, according to one embodiment of the present invention, comprises: a pressure applying unit applying pressure to a battery cell; and a pressure reducing member input unit providing a pressure reducing member to the pressure applying unit. The pressure applying unit comprises: a mounting part for mounting the battery cell or the pressure reducing member; and a pressure applying jig moving toward the mounting part and applying pressure to the battery cell or the pressure reducing member. The pressure reducing member input unit comprises at least one grip part automatically gripping and moving the pressure reducing member.
Resumen de: WO2025165054A1
A battery diagnostic apparatus according to an embodiment of the present invention includes: a profile obtaining unit configured to obtain a differential profile indicating a correspondence relationship between a differential capacity and a voltage of a battery; and a control unit configured to determine a target peak in the differential profile, calculate a first capacity and a second capacity of the differential profile on the basis of the target peak, calculate a capacity ratio between the first capacity and the second capacity, and diagnose the state of the battery by comparing the calculated capacity ratio with a pre-stored reference capacity ratio.
Resumen de: WO2025165051A1
A battery diagnosing apparatus according to an embodiment of the present invention includes: a profile acquisition unit configured to acquire a charging profile indicating a correspondence relationship between a voltage and a current of a battery measured in a charging process; and a control unit configured to calculate a first CC capacity and a first CV capacity from the charging profile, calculate a capacity change rate for the first CC capacity and the first CV capacity on the basis of a pre-stored second CC capacity and second CV capacity, diagnosis a state of the battery on the basis of the calculated capacity change rate and a preconfigured correction coefficient, and configure a use condition for the battery according to a diagnosis result.
Resumen de: WO2025165063A1
The present invention relates to a negative electrode, a secondary battery comprising same, and a secondary battery system for same. The negative electrode comprises, in a coating layer, aluminum-containing particles having specific components and a conductive material, and thus can implement a predetermined volume resistivity. Such negative electrodes allow a certain amount of current to leak, while implementing appropriate insulation on the surface of the negative electrode in the event of an internal short circuit, and thus can prevent the internal short circuit from causing a meltdown and/or rapid heat generation in a secondary battery.
Resumen de: WO2025165065A1
The technical idea of the present invention provides a battery apparatus comprising: a base structure: a plurality of cell assemblies mounted on the base structure and each of the plurality of cell assemblies including a plurality of battery cells; and a top cover coupled to the base structure and including a pair of outer walls spaced apart from each other in a first direction and an upper plate covering the plurality of cell assemblies and having an upper cooling channel.
Resumen de: WO2025162255A1
An electric apparatus (200). The electric apparatus (200) comprises a bipolar battery (100), wherein the bipolar battery (100) comprises current collectors (10); and each current collector (10) comprises a support structure (11), and a first fixing structure (12) and a second fixing structure (13), which are respectively arranged on two sides of the support structure (11) that face away from each other. When at least two current collectors (10) are stacked, among two adjacent current collectors (10) of the bipolar battery (100), the first fixing structure (12) of one current collector (10) is detachably connected to the second fixing structure (13) of the other current collector (10), such that the two support structures (11) adjacent to each other, and the first fixing structure (12) and the second fixing structure (13), which are detachably connected to each other, jointly form an accommodating cavity (105) by means of enclosure, the accommodating cavity (105) being configured to accommodate an electrolytic solution.
Resumen de: WO2025162319A1
A battery sealing structure and a battery. The battery sealing structure comprises: a battery cell cover plate or a casing, provided with a liquid injection hole running through a main body thereof; and a sealing member, welded and connected to the liquid injection hole, so that a welding portion is formed between at least a portion of the circumferential side wall of the sealing member and at least a portion of the hole wall of the liquid injection hole, wherein the welding portion has a penetration depth L1=500-1000 μm and a weld width L2≥500 μm. The battery sealing structure ensures a reliable connection between the sealing member and the liquid injection hole by defining the sizes of the penetration depth L1 and the weld width L2 of the welding portion, thereby effectively preventing electrolyte leakage, meeting sealing requirements of battery electrolytes, improving the yield of batteries and prolonging the service life of the batteries, and ensuring usage safety of the batteries.
Resumen de: WO2025162240A1
The present application relates to a casing, a battery cell, a battery, and an electrical apparatus. The casing comprises a casing body and a phase change cooling member. The casing body has an individual cooling cavity and accommodating cavity, the accommodating cavity and the cooling cavity each having one end open, and the accommodating cavity being used for accommodating an electrode assembly. The phase change cooling member is located in the cooling cavity, a phase change material capable of absorbing heat of the casing body being sealed in the phase change cooling member.
Resumen de: WO2025162499A1
The present application belongs to the field of lithium-ion batteries. Provided in the present application are an electrode sheet, and a lithium-ion battery containing same. An active layer of the electrode sheet comprises a first layer and a second layer, wherein the first layer is arranged close to a current collector, the second layer is arranged on the side of the first layer that is away from the current collector, and the mass percentage content of a binder of the first layer is greater than that of the second layer. A binder is reallocated, such that the migration of the binder can be improved while ensuring the peel strength and adhesiveness, and the impact of the migration of the binder on the uniformity and the conductivity is reduced, thereby further improving the manufacturability of the electrode sheet and the electrical properties thereof such as the energy density. The present application is very suitable for the adaptation of a lithium manganese iron phosphate cathode having a small particle size and a large specific surface area, and a battery therefor.
Nº publicación: WO2025165076A1 07/08/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
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Resumen de: WO2025165076A1
The present invention relates to a lithium secondary battery comprising: an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode; an electrolyte; and a battery case including an inner space for accommodating the electrode assembly and the electrolyte, wherein the cathode includes a cathode active material, the cathode active material includes a lithium nickel-based oxide containing 50-70 mol% nickel from total metal content thereof excluding lithium, and the electrolyte filling factor (EFF) index (unit: g/Ah) defined by relation 1 is 1.82-2.06. Relation 1 In relation 1, RE unit: g represents the weight of the remaining electrolyte included in the lithium secondary battery after activation, SU represents the ratio (SA/SE) of the volume (SA) of the electrode assembly and the volume (SE) of the lithium secondary battery, and NC unit: Ah represents the capacity when the lithium secondary battery is discharged from 4.4 V to 2.5 V at 0.33 C at 25°C.
BOPI
Sede Electrónica
