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1394
resultados
Última actualización
04/12/2025 [07:14:00]
Resultados 25 a 50 de 1394
Resumen de: DE102024115495A1
Energiespeichersystem, wobei das Energiespeichersystem Folgendes aufweist: eine Energiespeicherzone, in der Energiespeicherelemente angeordnet sind, ein Temperierfluidführungssystem zur Temperierung der Energiespeicherelemente und eine bis an Enden der Energiespeicherelemente heranreichende Energiespeicher-Endzone, wobei es vorteilhaft sein kann, wenn in der Energiespeicher-Endzone Endabschnitte der Energiespeicherelemente oder eines Anteils der Energiespeicherelemente angeordnet sind, wobei das Temperierfluidführungssystem eine Temperierzone aufweist und die Temperierzone sich entlang der Energiespeicher-Endzone oder durch die Energiespeicher-Endzone erstreckt.
Resumen de: DE102024121528A1
Aspekte der Offenbarung umfassen eine anodenlos zusammengebaute, in-situ erzeugte Lithium-Metall-Zelle und Verfahren zur Herstellung dieser Zelle. Ein beispielhaftes Fahrzeug umfasst einen Elektromotor und ein Batteriepack, das mit dem Elektromotor elektrisch gekoppelt ist. Das Batteriepack umfasst eine Batteriezelle, die einen Anodenstromkollektor, eine Anodenaktivmaterialschicht in direktem Kontakt mit einer Oberfläche des Anodenstromkollektors, einen Kathodenstromkollektor und eine Kathodenaktivmaterialschicht in direktem Kontakt mit einer Oberfläche des Kathodenstromkollektors umfasst. Die Kathodenaktivmaterialschicht umfasst ein Kathodenaktivmaterial und ein Lithiierungsreagens. Die Anodenaktivmaterialschicht umfasst eine Lithium-Metall-Schicht, die in-situ auf der Oberfläche des Anodenstromkollektors durch Lithiierung eines Abschnitts des Lithiierungsreagens in der Kathodenaktivmaterialschicht abgeschieden wird.
Resumen de: DE102025121086A1
Eine Vorrichtung kann eine Wärmebarrierebaugruppe beinhalten, die zwischen einer ersten Batteriezelle und einer zweiten Batteriezelle angeordnet ist. Eine Vorrichtung kann eine Wärmeisolierschicht der Wärmebarrierebaugruppe beinhalten, die dazu konfiguriert ist, eine Wärmeenergieübertragung zwischen der ersten Batteriezelle und der zweiten Batteriezelle zu reduzieren. Eine Vorrichtung kann eine erste Wärmespreizerrippe und eine zweite Wärmespreizerrippe beinhalten, die jeweils dazu konfiguriert sind, einen Weg zum Leiten von Wärmeenergie von der ersten Batteriezelle oder der zweiten Batteriezelle weg von der Wärmeisolierschicht festzulegen.
Resumen de: DE102024205043A1
Die Erfindung betrifft eine Batteriezelle (1), zumindest umfassend• ein, ein Volumen (2) umschließendes Gehäuse (3) und in dem Volumen (2) angeordnet• zumindest eine Kathode, eine Anode sowie einen Separator als erste Komponenten (4) einer ersten Teilzelle (5);• zumindest eine Kathode, eine Anode sowie einen Separator als zweite Komponenten (6) einer zweiten Teilzelle (7); sowie• mindestens einen Abstandshalter (8) zwischen den Teilzellen (5, 7); wobei die erste Teilzelle (5) benachbart zu einer ersten Seitenwand (9) des Gehäuses (3) und die zweite Teilzelle (7) benachbart zu einer, der ersten Seitenwand (9) gegenüberliegenden zweiten Seitenwand (10) des Gehäuses (3) angeordnet ist, wobei durch den Abstandshalter (8) ein für ein Gas (11) durchströmbarer Zwischenraum (12) zwischen den Teilzellen (5, 7) gebildet ist.
Resumen de: EP4657557A1
Provided is an electrical device, comprising a secondary battery. The secondary battery comprises a positive electrode sheet, the positive electrode sheet comprising a positive electrode composite material. The positive electrode composite material comprises a first active material and a second active material. The first active material and the second active material satisfy Equation 1, wherein r<sub>1</sub> is the primary-particle average particle size of the first active material, r<sub>2</sub> is the primary-particle average particle size of the second active material, r<sub>1</sub> and r<sub>2</sub> being calculated in a same unit, D<sub>1</sub> is the active-ion diffusion coefficient of the first active material, D<sub>2</sub> is the active-ion diffusion coefficient of the second active material, D<sub>1</sub> and D<sub>2</sub> being calculated in a same unit, r1 and r2 are unequal, and/or D<sub>1</sub> and D<sub>2</sub> are unequal.
Resumen de: EP4657609A1
This application provides a secondary battery and an electronic device. In the secondary battery, an electrode assembly is accommodated in a packaging bag. One end of an electrode terminal is electrically connected to the electrode assembly, and another end of the electrode terminal extends out of the packaging bag. A heating module includes an insulation layer as well as a body portion, a sealing portion, and an extension portion sequentially connected, where the body portion is disposed in the electrode assembly or between the electrode assembly and the packaging bag, the sealing portion is disposed in the packaging bag, the extension portion is disposed outside the packaging bag, and the insulation layer entirely covers an outer surface of the body portion. A sealing layer is at least partially disposed on a surface of the sealing portion and hermetically connected to the packaging bag. In a thickness direction of the heating module, an overlapping region is present between the insulation layer and the sealing layer. In the overlapping region, the insulation layer is hermetically connected to the sealing layer, and the insulation layer is located between the body portion and the sealing layer. Along a length direction of the electrode assembly, a length of the overlapping region is Δh, a length of the sealing layer is h, and 0.1 mm≤Δh≤h. The secondary battery in this application has good cycling performance.
Resumen de: EP4656597A1
This disclosure provides low-impurity ferric phosphate, and a preparation method and application thereof, and belongs to the field of preparation of high-purity ferric phosphate. The preparation method includes: mixing wet-process phosphoric acid and water to obtain a phosphoric acid solution, regulating a pH of the phosphoric acid solution, performing heating and aging to obtain an aged slurry, filtering the aged slurry to obtain a phosphate solution, and adding water and a first oxidant to obtain a phosphate aqueous solution containing the first oxidant; mixing a ferrous sulphate solution and the phosphate aqueous solution containing the first oxidant to obtain a first slurry; performing heating and aging, and adding a second oxidant to the first slurry after the first slurry changes color, so as to obtain a second slurry; and performing solid-liquid separation on the second slurry, and washing, drying, and sintering an obtained solid material in turn, so as to obtain the low-impurity ferric phosphate. In this disclosure, the wet-process phosphoric acid is used as a raw material, such that phosphorus utilization in the wet-process phosphoric acid is greatly increased, and the prepared anhydrous ferric phosphate has a low impurity content.
Resumen de: EP4657705A1
The present disclosure relates to a battery discharge control device and method. The device includes a battery (10), a discharge current sampling unit (30), an MCU (20), a DC-DC voltage step-down unit (40), a battery protection board (50), an indicator light (60) and a charging control unit (70). According to the present disclosure, the discharge current value, on-load voltage value and no-load voltage value of the battery are acquired by means of the MCU, the battery remaining capacity is calculated according to the above discharge current value, on-load voltage value and no-load voltage value, and finally, the output of the DC-DC voltage step-down unit is controlled according to the battery remaining capacity; and therefore, by adjusting the final power supply output of the device, the power supply output of the battery changes with the discharge trend of a lithium battery, electrical equipment can be enabled to obtain stable input, and the battery power can be accurately quantified.
Resumen de: EP4657600A1
The present disclosure provides a lithium-rich lithium ferrite material, a preparation method therefor and an application thereof, and belongs to the field of cathode materials. The lithium-rich lithium ferrite material includes core-shell structured particles, and a core-shell structured particle includes an inner core, a first coating layer coated outside the inner core and a second coating layer coated outside the first coating layer, where the inner core is Li<sub>5</sub>FeO<sub>4</sub>, the first coating layer is a carbon layer, and the second coating layer is a mixed layer containing polyethylene oxide and a lithium salt; and a mass ratio of the first coating layer to the inner core is (2:100)-(10:100), and a mass ratio of the second coating layer to the inner core is (3:100)-(13:100). According to the present disclosure, convenience is provided for improving the air stability of the lithium ferrite material, and meanwhile, the ionic conductivity of an overall electrode can be improved.
Resumen de: GB2641388A
A battery unit comprises a housing 110; a battery cell 120 inside the housing; and a thermally conductive layer arrangement 130 to conduct heat from the battery cell to the housing. The thermally conductive layer arrangement comprises a primary conduction layer 140 and a secondary conduction layer 150. A cross-plane thermal conductivity of the primary conduction layer is higher than an in-plane thermal conductivity of the primary conduction layer, and an in-plane thermal conductivity of the secondary conduction layer is higher than a cross-plane thermal conductivity of the secondary conduction layer. This arrangement results in enhanced transfer of heat away from the battery cell to the housing, by maximising flow of heat along both a primary heat flow direction 132 and secondary heat flow direction 134. The housing may comprise cooling fins arranged on its outer surface for dissipation of heat from the battery cell to ambient air. The battery unit may be used in a handheld vacuum cleaner.
Resumen de: GB2641355A
Use of a hydrometallurgically recycled graphite in a battery, for example use of an upgraded hydrometallurgically recycled graphite, and in particular a non-pyrometallurgically upgraded hydrometallurgically recycled graphite. The graphite may include 92% or more graphitic carbon and/or 5% or less aluminium oxide and/or 3% or less lithium nickel oxide. The graphite may be used in a battery anode, for example an anode of a lithium ion-battery which may be an EV battery. A method of upgrading a hydrometallurgically recycled graphite includes washing a hydrometallurgically recycled graphite and subsequently drying the washed graphite material, for example under vacuum. The method may include multiple washing cycles, for example including washing with one or more of water, an acid, and a base. Examples of acids which may be used include mineral acids, such as nitric acid, hydrochloric acid, hydrofluoric acid and sulphuric acid, and organic acids, such as citric acid, malonic acid and maleic acid. A base may be a metal hydroxide, such as sodium hydroxide. An upgraded hydrometallurgically recycled graphite includes 93% or more graphitic carbon. The graphite may include crystallites having a minimum ferret diameter of 5 microns or greater. The graphite may have a spherical morphology.
Resumen de: EP4657556A1
A positive electrode active material and a preparation method therefor, a positive electrode plate, a secondary battery, and a power consuming apparatus are disclosed. The positive electrode active material is a polyanionic compound/carbon composite, and the positive electrode active material has the following general formula: Na4-xR3-yMz(PO4)2P2O7/C, where R includes at least one of Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, W, and Pb, M includes at least one of Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, Si, W, and Pb, 0≤x≤0.5, 0≤y≤0.5, 0≤z
Resumen de: EP4657611A1
A battery package is disclosed. The battery package of the present invention includes: a pack case; a plurality of battery modules accommodated in an accommodating space of the pack case; a heat sink disposed on a lower plate of the pack case; and a thermal resin disposed between the plurality of battery modules and the heat sink to conduct heat from the plurality of battery modules to the heat sink and converted to an insulation layer by ceramicization during thermal runaway of the plurality of battery modules.
Resumen de: EP4657588A1
An electrolyte composition for a Zinc metal electrochemical device said electrolyte composition comprising water, a zinc salt, and an additive of formula (I), its use and an electrochemical device comprising said electrolyte.
Resumen de: EP4657589A1
An electrolyte composition for a Zn-MnO<sub>2</sub> electrochemical device said electrolyte composition comprising water, a zinc salt, and a combination of additives, wherein the combination of additives comprises an organic additive and an additive of formula (I), its use and an electrochemical device comprising said electrolyte.
Resumen de: EP4657619A1
A baffle plate for controlling fluid flow through a vent located on a wall section, the baffle plate comprising a back plate, a side wall extending from the back plate on at least two sides, and an outer rim at a distal portion of the side wall, wherein the baffle plate is arranged to connect to the wall section in such a way that the baffle plate at least partly covers the vent, and wherein the side wall is configured such that there is an opening between the outer rim and the wall section when a part of the outer rim connects to the wall section.
Resumen de: EP4657702A1
A battery control module, a battery pack, and a battery control system are provided. The battery control module includes a first circuit (L1), a second circuit (L2), and a third circuit (L3). The first circuit is connected to a positive electrode of a first battery module, the second circuit is connected to a positive electrode of a second battery module, and negative electrodes of the first battery module and the second battery module are both connected to the third circuit. The first circuit, the second circuit, and the third circuit are connected to a motor control circuit. Each circuit is a circuit with an adjustable on-off state, to switch a circuit connection relationship between the first battery module and the second battery module with the motor control circuit. Therefore, a connection loop in the battery control module is simply adjusted according to different battery grouping types, so that output requirements of battery modules of different grouping types can be satisfied, and the present application can be simply and flexibly applied to the battery modules of different grouping types.
Resumen de: EP4657571A1
A secondary battery and an electric apparatus including such secondary battery are provided. The secondary battery includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector, where the negative electrode film layer includes an additive capable of undergoing a nucleophilic reaction with a cyclic carbonate compound. The secondary battery exhibits high storage performance.
Resumen de: EP4657575A1
The present application relates to the technical field of batteries. Provided are a current collector, a battery cell, a battery and an electric device. The current collector comprises a current collector body, provided with a first side and a second side which are oppositely arranged, an opening passing through the first side and the second side being formed in the current collector body; and a blocking structure, which is arranged at the opening and is used for preventing solid particles from passing through the opening from the first side to move to the second side. The blocking structure facilitates an electrolyte to enter, via the current collector, a space above or below the current collector inside a casing, thus ensuring that the electrolyte wets an end of an electrode assembly and increasing the internal space utilization of the casing, and additionally, the blocking structure can prevent metal particles generated during a welding process of the current collector from entering the electrode assembly.
Resumen de: EP4657558A1
The present application provides a positive electrode material and a preparation method thereof, a positive electrode plate and a secondary battery. The positive electrode material comprises a first lithium nickel oxide material, the first lithium nickel oxide material comprises a polycrystalline particle, and the porosity inside the polycrystalline particle is denoted as d, 2%≤d≤15%; in any CP cross-section of the polycrystalline particle, the distance between two adjacent pore edges inside the polycrystalline particle is 10nm to 100nm. Thus, the cracking ratio of the positive electrode material during the processing of the electrode plate can be reduced, and the initial stress and the stress accumulation of the new surface generated by the cracking during the cycle process can be significantly reduced, and the particle toughness and particle strength are improved. Meanwhile, sufficient support can be provided for the rigid structure of the material, and the collapse and crushing of the material particles can be reduced. Therefore, the stability of the bulk phase and the surface is improved at the material level, and the long-term cycle performance and safety performance of the material are improved.
Resumen de: EP4657100A1
A battery management apparatus, according to an embodiment disclosed in the present document, may comprise: a data management unit that calculates a plurality of average voltages of a plurality of batteries by using voltages of the plurality of batteries, which are measured over a certain period of time, respectively; and a controller that calculates a plurality of voltage deviations, which are deviations between the plurality of average voltages of the plurality of batteries, and diagnoses at least one battery from among the plurality of batteries by using cosine similarity between an average value of the plurality of voltage deviations of the plurality of batteries and the plurality of voltage deviations of the plurality of batteries.
Resumen de: EP4656914A1
This application provides a temperature control system, a vehicle, an energy storage system, and a multi-way valve. The temperature control system includes a plurality of liquid pipes and a multi-way valve. The multi-way valve includes a first valve body and a second valve body. The first valve body includes a first plane, the second valve body includes a second plane, and the first plane and the second plane are parallel and attached to each other. A driver drives the first plane and the second plane to rotate relative to each other around a rotation axis. The first plane includes a plurality of groups of first sector ring openings, the plurality of first sector ring openings are divided into a plurality of rings by using the rotation axis as a circle center and are spaced apart, and two first sector ring openings in each group of first sector ring openings communicate with each other by using an internal channel of the first valve body. The second plane includes a plurality of groups of second sector ring openings, each group of second sector ring openings is arranged in an annular manner by using the rotation axis as a circle center, and each second sector ring opening is configured to communicate with at least one first sector ring opening and connect to at least one liquid pipe by using an internal channel of the second valve body. In this technical solution, a leakage risk of the multi-way valve is relatively low.
Resumen de: GB2641427A
A conveying device, applied to a cooling furnace, including: a first bracket, a second bracket spaced apart opposite to the first bracket along a first direction and an adjustment component; the first bracket and the second bracket jointly form a limiting space for positioning cells; the first bracket and the second bracket are both slidably connected to the adjustment component, and the first bracket and the second bracket are both configured to slide relative to the adjustment component along the first direction to increase or decrease a size of the limiting space along the first direction.
Resumen de: EP4657608A1
A heat exchange device and a battery device are provided. The heat exchange component (200) is arranged adjacent to the battery bank (100) and has a first surface (210) facing the batteries (110), the heat insulation member (300) is at least partially located between the batteries (110) and the heat exchange component (200); wherein the battery bank (100) includes at least one target battery (120), the target battery (120) is closer to the medium inlet (210) than other batteries (110), a plane on which the first surface (210) is located is taken as a reference plane, and on the reference plane, an orthographic projection of the heat insulation member (300) is located within a range of an orthographic projection of the target battery (120) and occupies at least a partial area of the orthographic projection of the target battery (120).
Nº publicación: EP4657583A1 03/12/2025
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Resumen de: EP4657583A1
The present application provides a secondary battery, which comprises at least two electrode sheets, wherein at least one electrode sheet comprises an intra-sheet electrolyte, the intra-sheet electrolyte comprises an intra-sheet gel electrolyte and an intra-sheet electrolytic solution, and the ratio R<sub>W</sub> of the mass of an electrolyte salt in the intra-sheet gel electrolyte to the mass of an electrolyte salt in the intra-sheet electrolytic solution satisfies 1<R<sub>W</sub><9.
BOPI
Sede Electrónica
