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BATTERY CELL, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4546555A1

The present application provides a battery cell, a battery, and an electrical apparatus. The battery cell comprises a shell, an electrode assembly, an insulating member and a support member. The electrode assembly is accommodated in the shell and comprises an electrode main body and a tab, the tab being led out from an end of the electrode main body. The insulating member is accommodated in the shell and is attached to the peripheral side surface of the electrode main body, and the insulating member is provided with an opening. The support member is used for supporting the electrode assembly and covering the opening. The battery cell provided by the present application helps to improve the deformation consistency of parts in the electrode assembly, and reduces the risk of lithium plating of the electrode assembly, thus improving the safety performance of the battery cell.

IMPROVED BATTERY SEPARATOR FOR LITHIUM-ION BATTERIES

Resumen de: WO2024006790A2

Nonwoven battery separators, batteries comprising nonwoven battery separators, and methods of manufacturing nonwoven battery separators having improved durability and resilience for better in-service performance, more long-term durability, and safer battery products, wherein the nonwoven battery separator is coated with inorganic oxides.

METHOD AND APPARATUS FOR THE DRY, SOLVENT FREE MANUFACTURE OF ELECTRODES USING POWDERS

Resumen de: WO2024006763A2

A system for dry manufacturing an electrode for an energy storage device includes a substrate configured to move in a feed direction. In addition, the system includes a powder applicator configured to deposit a dry powder onto a surface of the substrate. Further, the system includes at least one pair of spreading rollers. The pair of spreading rollers includes an upper spreading roller and a lower spreading roller positioned below the upper spreading roller. The upper spreading roller and the lower spreading roller are positioned downstream of the powder applicator relative to the feed direction. Each spreading roller has a central axis of rotation and a radially outer surface. The radially outer surface of the upper spreading roller is configured to directly contact and spread the dry powder on the substrate. The upper spreading roller is configured to rotate in a rotational direction that is counter to the feed direction of the substrate proximal the substrate and dry powder and the lower spreading roller is configured to rotate in a rotational direction that is the same as the rotational direction of the upper spreading roller. Still further, the system includes at least one pair of compaction rollers. The pair of compaction rollers includes an upper compaction roller and a lower compaction roller positioned below the upper compaction roller. The at least one pair of spreading rollers are positioned downstream of the upper spreading roller and the lower spreading roller re

METHOD FOR MANUFACTURING BATTERY CELL, BATTERY CELL MANUFACTURED THEREBY, AND BATTERY MODULE INCLUDING SAME

Resumen de: EP4546520A1

The present invention provides: a method for manufacturing a battery cell, wherein a folding part is formed in a sealing part of the battery cell, an attachment member is closely attached, along a side face of a case body and a folding face located on the outermost portion of a side of the case body, to suppress the deformation of the sealing part and delay venting, and the cooling efficiency of the battery cell is improved; a battery cell manufactured by the method; and a battery module including the battery cell.

HEAT TRANSFER SUPPRESSION SHEET AND BATTERY PACK

Resumen de: EP4546512A1

There are provided a heat transfer suppression sheet which has excellent heat insulating properties and also prevents the infiltration of water, which makes it possible to prevent ignition and the like due to a short circuit between battery cells, and preferably makes it possible to prevent a decrease in heat insulating properties due to the infiltration of the electrolytic solution, and a battery pack having the heat transfer suppression sheet. A heat transfer suppression sheet (10) interposed between a plurality of battery cells contains at least one kind of fiber (glass fiber (1)) selected from an inorganic fiber and an organic fiber, and a liquid repellent substance (2) having a surface tension smaller than a surface tension of water.

BINDER COMPOSITION FOR ELECTROCHEMICAL ELEMENT, CONDUCTIVE MATERIAL DISPERSION FOR ELECTROCHEMICAL ELEMENT, SLURRY FOR ELECTROCHEMICAL ELEMENT ELECTRODE, ELECTRODE FOR ELECTROCHEMICAL ELEMENT, AND ELECTROCHEMICAL ELEMENT

Resumen de: EP4546468A1

A binder composition for an electrochemical device contains a polymer including a nitrile group-containing monomer unit, an alkylene structural unit, and a hydrophilic group-containing monomer unit, N-methyl-2-pyrrolidone, and triphenylphosphine sulfide. Content of the triphenylphosphine sulfide is not less than 2 mass ppm and not more than 100 mass ppm relative to content of the polymer. A relationship formula: 0.004(%) ≤ {(a)/(b)} × 100(%) ≤ 0.150(%) is satisfied when content of the triphenylphosphine sulfide relative to content of the polymer is taken to be (a) and content of the hydrophilic group-containing monomer unit relative to content of the polymer is taken to be (b).

LITHIUM ION SECONDARY BATTERY

Resumen de: EP4546480A1

A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution, in which the negative electrode includes a current collector and a negative electrode active material layer disposed on at least one side of the current collector, the negative electrode active material layer includes a negative electrode active material including graphite particles and amorphous carbon fine particles, the electrolytic solution includes at least a non-aqueous solvent, an electrolyte salt, and an additive, and the additive includes a fluorosulfonate and a methoxysulfonate. Consequently, it is possible to achieve both an improvement in power characteristics and an improvement in high temperature storage characteristics in a low SOC range in the lithium ion secondary battery.

ENERGY STORAGE DEVICE, AND CONTROL SYSTEM FOR ENERGY STORAGE DEVICE

Resumen de: EP4546529A1

An energy storage device (100) and a control system (200) for an energy storage device. The energy storage device (100) comprises a case (10), a battery module (20), and at least one connecting piece (30). An accommodating cavity (11) is defined in the case (10); at least one opening (12) is formed on a side surface of the box body (10); the battery module (20) is arranged in the accommodating cavity (11); and the connecting piece (30) is connected between the side surface of the battery module (20), that is, adjacent to the opening (12) and the box body (10).

DIRECT COOLING PLATE, HEAT EXCHANGER, POWER BATTERY PACK AND VEHICLE

Resumen de: EP4545897A1

A direct cooling plate, a heat exchanger, a power battery pack and a vehicle. The direct cooling plate includes a plurality of heat exchange channels, which are arranged inside the direct cooling plate. Each heat exchange channel includes an inlet for a refrigerant to enter therein and an outlet for the refrigerant to flow out therefrom, wherein the at least one heat exchange channel is circumferentially arranged around the other heat exchange channels; and each heat exchange channel forms a heat exchange unit at the direct cooling plate, and the heat exchange unit is used for performing heat exchange in different temperature regions of a battery. The direct cooling plate can control the temperature of the refrigerant at the inlet of each heat exchange channel aimed at different temperature regions of the battery, such that the overall temperature difference of the battery is improved, and thereby prolonging the service life of the battery.

BATTERY LIFE PREDICTION DEVICE AND METHOD

Resumen de: EP4545988A1

The present invention relates to an apparatus for predicting battery lifetime that may predict battery time more accurately by removing errors due to a characteristic of recovering temporary capacity happening intermittently from charge/discharge test data of a battery and a method thereof.The apparatus for predicting battery lifetime in accordance with the present invention comprises: a capacity recovery section-determining unit for determining a temporary capacity recovery section by analyzing charge/discharge test data of a battery; a trend analysis unit for creating alternative data based on test data before and after the temporary capacity recovery section determined by the capacity recovery section-determining unit, and analyzing trend of the test data by reflecting the alternative data; and a lifetime predicting unit for predicting lifetime of the battery based on data outputted from the trend analysis unit.

BATTERY MANAGEMENT CHIP AND SYSTEM, AND VEHICLE

Resumen de: EP4546499A1

A vehicle, includes a battery management chip and a battery management system. The battery management chip comprises a battery cell data sampling module, a data processing module, a first communication module and a first power source module. The battery cell data sampling module is used for acquiring battery cell data of a battery cell; the data processing module is connected to the battery cell data sampling module, and is used for processing the battery cell data; the first communication module is connected to the data processing module, and is used for sending the processed battery cell data to a control module; and the first power source module is connected to the battery cell and the data processing module, and is used for receiving an initial voltage outputted by the battery cell, and performing boost processing on the initial voltage, so as to provide an operating voltage for the data processing module.

METHOD FOR PREPARING IRON PHOSPHATE FROM IRON PHOSPHORUS SLAG, IRON PHOSPHATE AND APPLICATION OF IRON PHOSPHATE

Resumen de: EP4545477A1

A method for preparing iron phosphate from an iron phosphorus slag includes: adding the iron phosphorus slag into an alkaline solution to carry out a reaction followed by a solid-liquid separation to obtain a residue and a first filtrate containing meta-aluminate ion and phosphate ion; adding an acid solution into the first filtrate to carry out an aluminum-removing reaction followed by a solid-liquid separation to obtain a second filtrate containing phosphate ion; mixing the residue with an acid solution to carry out a carbon-removing reaction followed by a solid-liquid separation to obtain a carbon residue and a third filtrate containing iron ion, titanium ion, and copper ion; adding metallic iron into the third filtrate to carry out a titanium and copper-removing reaction followed by a solid-liquid separation to obtain a fourth filtrate containing ferrous ion; mixing an oxidant, the second filtrate, and the fourth filtrate to carry out a reaction followed by a solid-liquid separation and a sintering process in sequence to obtain the iron phosphate.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING SAME

Resumen de: EP4546453A1

This application relates to an electrochemical device, including a positive electrode plate, a negative electrode plate, and an electrolyte. The negative electrode plate includes a negative electrode active layer, the positive electrode plate includes a positive electrode active layer, the positive electrode active layer includes a positive electrode active material, the positive electrode active layer includes element aluminum, an amount A (mmol) of the element aluminum in the positive electrode active layer and a total area B (m<2>) of the negative electrode active layer satisfy 3≤A/B≤25, and the positive electrode active material includes lithium manganese oxide and a manganese-containing compound.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING SAME

Resumen de: EP4546465A1

This application relates to an electrochemical device, including a positive electrode plate, a negative electrode plate, and an electrolyte. The positive electrode plate includes a positive electrode active layer, the positive electrode active layer includes a positive electrode active material, and the positive electrode active material includes an additive. During charge/discharge the electrochemical device, when the electrochemical device is in a fully discharged state, an X-ray diffraction pattern of the positive electrode plate has a characteristic diffraction peak 1 at a diffraction angle 2θ ranging from 17.5° to 19.5°, and the additive includes manganese element. This application can significantly increase a charge-discharge capacity of the positive electrode active material and improve the cycling performance and high-temperature storage performance of the electrochemical device.

SINGLE BATTERY, BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4546518A1

A single battery (100) includes a casing (110), a first cover plate (150), a first terminal (160), an electrode assembly (120), and a first insulating member (20). The casing (110) includes a first opening (111). The first cover plate (150) seals and is installed on the first opening (111). The first terminal (160) is installed on the first cover plate (150). The electrode assembly (120) is arranged in the casing (110) and has a first tab (121) extending from a side close to the first cover plate (150). The first tab (121) is fixedly connected to the first terminal (160) and is formed with a first tab free end (1211). The first insulating member (20) is installed on a side of the first cover plate (150) close to the electrode assembly (120). The first insulating member (20) is provided with a tab blocked structure (170). A side of the first terminal (160) close to the electrode assembly (120) and the tab blocked structure (170) form a first accommodating space (190).

A sensor assembly

Resumen de: GB2634915A

A sensor assembly 100 with a measurement bed or tray 110, vertical supporting member or frame 120 with a magnetic-field sensor 130 attached thereto, a motor 140 and a controller 150 allowing movement of the sensor over the measurement bed along at least one axis to perform a scan. The supporting member may comprise a beam 122 across or above the bed to which the sensor is connected, or may form a gantry. The controller may actuate the motor to move the sensor relative to the member, a second axis, or the member relative to the bed, a third axis, and may comprise a three-axis motor to allow for 3D scanning. The sensor may be removably connected to the member and may comprise multiple probes (Fig.6 134a-c) to measure in different directions or be rotated (Fig.7 Position 1-3). The bed may be tiltable or removable and provide object securing means. A means to convey beds through the assembly may be provided (Fig.5). A second invention is included, being a battery with one or more magnetic field sensors.

Cell testing

Resumen de: GB2634888A

A cell test jig (200) for testing a battery. The jig (200) is arranged to place a cell (202) on test under compressive force. The jig comprises a first plate (204), a second plate (214), a cell carrier plate (208) and a clamp (234). The cell carrier plate (208) is between the first (204) and second (214) plates and is arranged to directly support the cell (202). The jig (200) is arranged to receive the cell (202) between the first plate (204) and the cell carrier plate (208) The clamp (234) is arranged to retain the first (204) and second (214) plates in a manner applying a compressive force to the cell (202). The jig (200) has a support formation arranged to support the cell carrier plate (208) in a manner allowing adjustment of the position of the cell carrier plate (208) with respect to the first (204) and second (214) plates when the compressive force is applied. The positional adjustment is in a plane substantially perpendicular to the direction of the compressive force. Pressure sensors may be provided (Figure 4, 218).

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

Resumen de: EP4546462A1

This application provides an electrochemical device and an electronic device. The electrochemical device includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive active material layer. The positive active material layer includes a first powder and a second powder. After the electrochemical device is fully discharged, an X-ray diffraction pattern of the positive active material layer exhibits a first diffraction peak in a diffraction angle 2θ range of 17.3° to 19.3°, and exhibits a second diffraction peak in a 2θ range of 19.8° to 21.8°. The electrochemical device disclosed herein achieves a high specific discharge capacity and a long cycle life concurrently.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

Resumen de: EP4546452A1

This application provides an electrochemical device and an electronic device. The electrochemical device includes a positive electrode, a negative electrode, and an electrolyte; where the positive electrode includes a positive electrode active material layer, the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes a first positive electrode active material and a second positive electrode active material; after the electrochemical device is fully discharged, a Raman spectrum of the positive electrode active material layer has a first characteristic peak at a wavelength ranging from 398 cm^-1 to 408 cm^-1 and a second characteristic peak at a wavelength ranging from 940 cm^-1 to 960 cm^-1; and the second positive electrode active material includes element aluminum. The electrochemical device provided in this application has both high energy density and good high-temperature cycling performance.

LIQUID DISCHARGE MECHANISM, BATTERY BOX BODY, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4546557A1

This application relates to a liquid discharge mechanism, a battery box, a battery, and an electric apparatus. The liquid discharge mechanism includes: a valve seat (141) having a mounting chamber (1411); a valve core (142) assembled on the valve seat (141) and at least partially accommodated in the mounting chamber (1411); and a deformation member (143) accommodated in the mounting chamber (1411) and connected between the valve seat (141) and the valve core (142). The deformation member (143) is configured to deform after contacting a target liquid, thus causing formation of a liquid discharge channel (144) between the valve core (142) and the valve seat (141).

SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL DEVICE

Resumen de: EP4546460A1

This application relates to a secondary battery. The secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode film layer disposed on at least one surface of the positive current collector. The positive electrode film layer includes a positive active material. The positive active material includes: S1) a lithium-containing compound of an olivine structure, and S2) a vanadium oxide represented by a general formula j(M2O)·kVOx, where M is one or more of alkali metals, 0 ≤ j ≤ 1, 1 ≤ k ≤ 5, 1 ≤ x ≤ 2.5, a difference of a discharge platform voltage between S1 and S2 is E, and 0.2 V ≤ E ≤ 2.8 V. The secondary battery exhibits excellent low-temperature performance while ensuring excellent cycle performance and gravimetric capacity, for example, maintains a very good low-temperature capacity retention rate even at a high discharge rate.

BATTERY OVERHAUL DEVICE

Resumen de: EP4545341A1

The application relates to a battery overhaul device 100 for monitoring one or more batteries and determining battery overhaul actions for the one or more batteries from a plurality of possible battery overhaul action candidates by using information of the one or more batteries.

HYBRID SOLID ELECTROLYTES AND METHOD OF PREPARATION THEREOF

Resumen de: EP4546484A1

The present invention refers to method for preparing a hybrid organic-inorganic solid electrolyte (HSE) based on in-situ synthesized inorganic phase in the presence of polymer. The described approach delivers flexible membranes with high ionic conductivity values (>10<-4> S/cm at room temperature) and excellent mechanical properties, especially in terms of yield stress (σy), which are suitable for electrochemical applications in solid-state lithium metal batteries.

BATTERY SYSTEM WITH CELL SPACERS BETWEEN BATTERY CELLS AND A METHOD OF MANUFACTURING THEREOF

Resumen de: EP4546504A1

The present disclosure refers to a battery system (100). The battery system (100) includes a plurality of battery cells (10, 12) including a first battery cell (10) and a second battery cell (12) accommodated in a housing. A cell spacer (S) among a plurality of cell spacers is positioned between the first battery cell (10) and the second battery cell (12). The cell spacer (S) includes a first insulating layer (20), a second insulating layer (40) and a metal fin (30) between the first insulating layer (20) and the second insulating layer (40). A gap filler layer (50) includes a first surface (51) facing the plurality of battery cells (10, 12) and a second surface (52) facing away from the plurality of battery cells (10, 12), wherein the plurality of battery cells (10, 12) are in contact with the first surface (51) of the gap filler layer (50). In addition, a cooling plate (60) including a surface (62) contacting the second surface (52) of the gap filler layer (50). The metal fin (30) at least partially penetrates the gap filler layer (50) so that an end portion (32) of the metal fin (30) extends toward the cooling plate (60).

PERMSELECTIVE INTERLAYER

Nº publicación: EP4544634A1 30/04/2025

Solicitante:

UNIV MONASH [AU]
Monash University

Resumen de: AU2023301653A1

An interlayer for a lithium sulfur battery is provided. The interlayer is produced from an elastic polyelectrolyte liquid (EPL) and a two dimensional conducting material, such as graphene oxide. The EPL is produced from polyphenol, cationic polymer and facilitated ion transport protein. The interlayers are characterised by ion selective transport behaviour and electrocatalytic properties, and separator substrates coated with the interlayer may be usefully incorporated into lithium sulfur batteries.