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A method of manufacturing porous silicon

Resumen de: GB2634526A

A method of manufacturing porous silicon comprising providing magnesium silicide with silica nanoparticles and silica microparticles, and heating the mixture at up to 500°C. The magnesium silicide may be formed by reacting magnesium with silica particles and heating the mixture at up to 500°C. The formation of magnesium silicide may occur immediately prior to, or simultaneously with, the method of manufacturing porous silicon, or it may be preformed remotely. A separate independent claim specifies a method of manufacturing porous silicon comprising providing magnesium with silica nanoparticles and silica microparticles and heating the mixture at up to 500°C. The silica nanoparticles may have a dimension between 1-75 nm and preferably less than 20nm, and the silica microparticles may have a dimension between 1-1000 microns. The method may further comprise forming a battery anode from the porous silicon. The silica nanoparticles and microparticles may be sourced from precipitated silica, silica gel, microsilica, organosilicas, bioinspired silicas, sand, rice husks, crushed glass, silicates, or mixtures thereof. The magnesium silicide may be in a 1:1 weight ratio with the combined weight of the silica nanoparticles and microparticles.

Graphite electrochemical cell

Resumen de: GB2634562A

An electrochemical cell with a graphite working electrode and counter electrode, the graphite particles having a D50 particle length by volume of D50w and the counter electrode active material, such as lithium cobalt oxide or lithium nickel manganese cobalt, or NCA, comprises particles having a D50 particle length by volume of D50c 6 or less times longer, preferably 1.4-2, preferably with a same such D10 and D90 relationship most preferably 1.5-2 and 1.2-2 times respectively. The graphite may have a particle length spread of 1.75 or more and preferably a D50 of 3.5-4 microns, D10 <2 microns, D90 <9 microns; the counter electrode particles having a particle length spread of 1.35 or less and a D50 of 5-10 microns, D10 <4 microns, D90 preferably 10-15 microns. The surface area, tap density, calendar density are also defined. The graphite particles may be bimodal. A binder of CMC, SBR, or PVDF or mixture may be used. The cell is designed for a C-rate of 20C or more with a specific discharge capacity retention of 90% or more at 1C after 1000 cycles and 80% or more after 2000 cycles at a charge of 6C and discharge of 1C.

AIR COOLING SYSTEM FOR AN ELECTRIC VEHICLE

Resumen de: EP4538078A1

A vehicle (10) includes a first battery housing (600) to house a plurality of first battery modules (61), a second battery housing (70) to house a plurality of second battery modules (71), and an air cooling system to cool the plurality of first battery modules and the plurality of second battery modules. The air cooling system includes a compressor (362), a condenser (531), a first evaporator coil (3551L) that includes a first side at which warm air is received and a second side at which cool air exits after having passed through the first evaporator coil, and a second evaporator coil (3551R) that includes a first side at which warm air is received and a second side at which cool air exits after having passed through the second evaporator coil.

APPARATUS FOR THE GEOMETRIC MEASUREMENT OF A TWO-DIMENSIONAL ELEMENT, CONVEYED ON A ROTARY CONVEYOR, OF THE ENERGY-CELL PRODUCING INDUSTRY

Resumen de: WO2023237548A1

An apparatus (10) for the geometric measurement of a two-dimensional element (50), conveyed on a rotary conveyor (40), of the energy-cell producing industry comprises at least one camera (11) which is arranged in a measuring relationship with respect to a lateral surface (41) of the rotary conveyor (40), and an electronic evaluation unit (60) which is designed to process data transmitted by the camera (11). The at least one camera (11) is designed to capture a plurality of single images (30) corresponding to mutually successive rotary positions of the rotary conveyor (40), and the data processing device (60) is designed to generate an overall image (31), comprising at least one two-dimensional element (50), from the plurality of single images (30) by image processing.

TESTING DEVICE AND TESTING METHOD FOR THE ENERGY CELL PRODUCTION INDUSTRY, AND METHOD FOR PRODUCING A TESTING DEVICE

Resumen de: CN119343782A

The invention relates to an inspection device (1) for the energy cell production industry, said inspection device (1) being provided for inspecting flat elements (2) suitable for forming a cell stack, said inspection device (1) comprising a plurality of inspection units (4) which can be moved relative to a stationary part (5) of the inspection device (1) by means of a conveying device (3), the inspection units (4) each comprise at least two contact surfaces (6, 7, 8) for electrically and/or signally contacting the flat element (2) to be inspected, and wherein the inspection units (4) each comprise a support (9) having an electrically insulating property, by means of which the contact surfaces (6, 7, 8) of the respective inspection units (4) are arranged in a predetermined position and orientation relative to one another, the support (9) of the inspection unit (4) is fastened on the conveying device (3).

UNDERRIDE GUARD WITH AT LEAST ONE DEGASSING CHANNEL, AND TRACTION BATTERY ARRANGEMENT WITH SUCH AN UNDERRIDE GUARD

Resumen de: CN119343819A

The invention relates to a bottom protection device (100) for a power battery (200), comprising a protective base module (110) which can be arranged below the power battery while forming a venting space. The base module (110) has at least one shell-shaped element (130) which is arranged on the top side of the base module and which forms an exhaust channel (140) which extends on the top side and has a closed cross-section for discharging the hot gas (H) from the exhaust space, the shell-shaped element (130) is designed as a plastic-metal composite component and has at least one gas-permeable overflow region (132) within which the hot gas (H) can overflow from the exhaust space into the exhaust duct (140). The invention also relates to a power battery assembly with such a bottom protection device (100).

Enhanced imaging analysis for three-dimensional scan acquisition and fiber/wire separation

Resumen de: GB2634621A

A method of analysing a three-dimension volumetric scan or volume with two perpendicular orientations, each having a discrete data set 1202. The method comprises determining the surfaces 1204, making a selection of markers 1206, aligning the volumes 1208, measuring and normalising distances between the markers 1210, 1212, then using the normalized measurement to update alignment 1214 and merge the discrete data sets into a single one 1216. Through sampling this data set 1218, an orientation, correlation and position of wires can be determined 1220, inclusive of a winding direction 1222 and if the wires are separated, indicating a flaw or failure 1224. The markers may be geometric elements or reference points for alignment, and alignment may result in superposition of the volumes. Sampling may increate signal to noise ratio. The wires may be a winding for an electrical component.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4539228A1

Some embodiments of this application disclose a battery cell, a battery, and an electrical device. The battery cell includes: a shell; an electrode assembly, where the electrode assembly is disposed in the shell; an electrolyte solution, where the electrolyte solution fills the shell; and a cushion, where the cushion is accommodated in the shell and attached to the electrode assembly. The cushion includes a sealed bag and a cushion pad. The sealed bag covers a surface of the cushion pad. The cushion inside the battery cell according to this application achieves good chemical stability and cushioning performance, and increases the energy density and cycle life of the battery while ensuring stability of the electrode assembly in the battery cell.

POUCH BATTERY

Resumen de: EP4539219A1

In order to provide a pouch battery having improved lifespan performance, an embodiment of the present disclosure provides a pouch battery comprising: a pouch case including an accommodation part in which an electrode assembly comprising a cathode and an anode is accommodated and a cover part which covers the accommodation part; and the electrode assembly accommodated and sealed in the pouch case, wherein: the pouch battery includes a body part in which the electrode assembly is located and a sealing part where the accommodation part and the cover part are sealed; and a gas storage part and an isolation part which isolates the gas storage part from the body part are included in at least a portion of the sealing part.

ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Resumen de: EP4539192A1

According to exemplary embodiments, an electrolyte for a lithium secondary battery which includes an additive including a compound represented by a specific formula; an organic solvent; and a lithium salt may be provided. Thereby, the lithium secondary battery including the electrolyte for a lithium secondary battery may provide excellent high-temperature characteristics and other performances (e.g., initial resistance, rapid charge performance, room-temperature capacity characteristics, etc.).

CARBONATE COMPOUNDS FOR ENERGY STORAGE DEVICE ELECTROLYTE COMPOSITIONS, AND METHODS THEREOF

Resumen de: CN119343795A

The present invention provides electrolyte solvents, co-solvents and formulations for energy storage devices with improved performance. The improved performance may be achieved as improved cycling stability, as well as coulombic efficiency, capacity, or conductivity at very high temperatures (e.g., at least about 70 DEG C or about 70-85 DEG C). Such electrolyte formulations may comprise compounds of formula (I), such as dimethyl 2, 5-dioxaadipate (DMOHC) and diethyl 2, 5-dioxaadipate (DEOHC): # imgabs0 #

METHOD OF MANUFACTURING AN ELECTRODE FOR A LITHIUM BATTERY USING A SOLVENT-FREE PROCESS

Resumen de: EP4539132A1

The manufacturing method is intended to manufacture an electrode (28) comprising a substrate (26) and at least one film (22, 24) coating the substrate (26). The method comprises calendering a dry powder mixture (12) in a first calendering device (14) including at least two cylinders comprising a first cylinder (18a) having a first rotation speed V1 and a second cylinder (18b) having a second rotation speed V2, the dry powder mixture (12) being supplied between the first (18a) and second (18b) cylinders. The percentage difference V1−V2V1 between the first rotation speed V1 and the second rotation speed V2 is comprised between 1% and 40%.

A BATTERY CHARGING SYSTEM

Resumen de: EP4539202A1

According to the present disclosure, there is provided a battery charging system 1000, 1000', 1000", comprising: a battery enclosure 102, 102' 102" defining an interior space 103 containing a battery storage medium, the interior space 103 configured to house one or more battery cells 101; a charging terminal 107a, 107b electrically coupled to the one or more battery cells 101 and configured to receive electrical power from a power source 104 to charge the one or more battery cells 101; wherein the interior space 103 is configured to be coupled to a pressurising device 106, 112 for applying pressure to the battery storage medium in the interior space 103; and wherein during charging of the one or more battery cells 101, the battery storage medium in the interior space 103 is pressurised to cause an isostatic pressure to be applied to the one or more battery cells 101. A method 500 of charging of charging one or more battery cells 101 is also provided.

Fire-proofed cover for battery units of vehicles

Resumen de: GB2634620A

A fire-proofed cover for a battery unit 12 of an electrically powered vehicle comprises a housing produced from a cloth or fabric material 10 impregnated with a solution containing an intumescent material and formed with one or more discrete openings 32 through which interconnecting cabling and the like can pass. The housing further includes at least one ventilation opening 16 which is closed automatically in the event of excessive heat through rapid expansion of the intumescent coating. The housing may also include a sealed tube that contains a fire extinguishing fluid or gas that is released in the event of a fire.

SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND ELECTRICAL APPARATUS

Resumen de: EP4539185A1

The present application provides a secondary battery, comprising a positive electrode plate, wherein the positive electrode plate comprising a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector, the positive electrode film layer comprising a conductive agent, where the conductive agent comprises a first conductive carbon black and a second conductive carbon black, and the specific surface area of the second conductive carbon black is greater than that of the first conductive carbon black. In addition, the present application further provides a method for preparing the secondary battery and a power consuming device. The secondary battery of the present application not only has a low internal resistance, but also has improved battery energy density and cycling performance.

MECHANICAL COOLING AND CAPACITY LOSS LIMITATION OF THE BATTERY PACK (BATTERY CELL)

Resumen de: EP4539207A1

The invention relates to stabilizing a battery cell package. The sealed casing should be filled with the gas Argon (Ar, Atomic Number 18). The gas in the airtight housing has an insulating effect, which limits the weather influences from the outside. Also, the gas Argon (Ar, Atomic Number 18) has added value to fire safety. The free space between each battery cell contains a metal pin that ensures that the heat from the surrounding battery cell is guided to the outside. There is a heat transfer from the battery cell to the metal pin. The battery cell will dissipate its excess heat. The metal pin that conducts the heat protrudes outside the enclosure. When greater cooling capacities are needed, there is the option of placing the metal pin to two sides along the battery cell. The cool surface of the metal pin increases. The heat falls outside the battery airtight casing preventing the battery cell from overheating. The heat emitted to the outside can possibly be reused to heat up an external room. The heat can be useful for a space elsewhere. By stabilizing the package and reusing the heat, there is the possibility of using fewer larger battery packages.

CURVED BATTERY AND ELECTRONIC DEVICE COMPRISING SAME

Resumen de: EP4539182A1

A curved battery according to an embodiment of the disclosure may include a battery cell having a curved cross-section, and a housing disposed outside the battery cell. The battery cell may include a positive electrode plate, a negative electrode plate, a separator disposed between the positive electrode plate and the negative electrode plate, a first electrode tab electrically connected to at least a portion of the positive electrode plate, and a second electrode tab electrically connected to at least a portion of the negative electrode plate. The positive electrode plate, the negative electrode plate, and the separator may be wound and disposed. At least one of the first electrode tab and the second electrode tab may be arranged to correspond to the length of the battery cell. Various other embodiments may be possible.

ELECTRICAL MODULE AND BATTERY PACK

Resumen de: EP4539200A2

The present disclosure provides an electric module (1) and a battery pack (100). The electric module (1) includes a cells contact system (11), a battery managing unit (12), and a cell supervision circuit (13). The cells contact system (11) collects one or more voltage signals and/or one or more temperature signals of the cell groups (21) in a battery module (2). The cell supervision circuit (13) includes one or more analog front ends (131) configured to convert one or more analog signals of the battery module (2) collected by the cells contact system (11) into one or more digital signals. The analog front ends (131) are communicatively connected to the battery management unit (12). The cell supervision circuit (13) is connected directly with the cells contact system (11).

CATHODE FOR ALL SOLID SECONDARY BATTERY, AND ALL SOLID SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4539150A1

A cathode for all solid secondary batteries and an all solid secondary battery including the cathode, an anode, and a solid electrolyte between the cathode and the anode are provided. The cathode includes a cathode current collector, an adhesion binder layer on the cathode current collector and including an adhesion polymer, and a cathode active material layer on the adhesion binder layer and including a composite cathode active material and a cohesion binder, wherein the composite cathode active material includes a Li₂S-containing composite.

NEGATIVE ELECTRODE AND SECONDARY BATTERY

Resumen de: EP4539136A1

The present invention relates to a negative electrode for a secondary battery including: a current collector; and a negative electrode active material layer provided on the current collector and including a negative electrode active material and a conductive material, wherein the conductive material includes a linear conductive material and a planar conductive material, and wherein the negative electrode active material layer has an oriented structure, and a secondary battery including the negative electrode.

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4539221A1

This application relates to a battery (10) and an electric device (1). The battery (10) includes a battery module (20), where the battery module (20) includes at least one battery cell (21), and the battery module (20) is disposed in a first direction, the first direction being a length direction of the battery (10) or a moving direction of the electric device (1) with the battery (10). The battery cell (21) includes a plurality of surfaces, where the plurality of surfaces include a first surface (2111) with the largest area, and the plurality of surfaces further include two second surfaces (2121) opposite each other, the two second surfaces (2121) being both connected to the first surface (2111). The battery cell (21) further includes an electrode terminal (214), where the electrode terminal (214) is disposed on the first surface (2111) or at least one of the second surfaces (2121). When the electric device (1) experiences collision, the electrode terminal (214) is not prone to collision, thereby avoiding damage to the electrode terminal (214) and ensuring the normal power supply of the battery (10).

FABRICATION OF BATTERY CELLS USING ARRESTER EXTENSIONS

Resumen de: EP4539183A1

Die Erfindung betrifft ein Verfahren zum Herstellen einer Batteriezelle, mit zumindest zwei an gegenüberliegenden Seiten angeordneten Batteriepolen, wobei mindestens ein Elektrodenpaket mit einer Vielzahl von Anodenfolien und Kathodenfolien, welche durch Separatorfolien voneinander getrennt sind, bereitgestellt wird, wobei die Anodenfolien endseitig Anodenableiter und die Kathodenfolien endseitig Kathodenableiter aufweisen, wobei die Anodenableiter der Anodenfolien an einer ersten Seite und die Kathodenableiter der Kathodenfolien an einer zweiten Seite des Elektrodenpakets gebündelt werden, die gebündelten Anodenableiter und/oder Kathodenableiter zumindest bereichsweise mit mindestens einer Ableiterverlängerung elektrisch leitend verbunden werden, das mindestens eine mit mindestens einer Ableiterverlängerung versehene Elektrodenpaket in ein Zellgehäuse hineingesetzt wird, die Anodenableiter direkt oder indirekt über die mindestens eine Ableiterverlängerung mit einem Kollektor eines ersten Batteriepols und die Kathodenableiter direkt oder indirekt über die mindestens eine Ableiterverlängerung mit einem Kollektor eines zweiten Batteriepols elektrisch leitend verbunden werden, und wobei das Zellgehäuse durch den ersten Batteriepol und den zweiten Batteriepol verschlossen wird. Des Weiteren betrifft die Erfindung eine Batteriezelle.

A MODULE FRAME FOR A BATTERY MODULE

Resumen de: EP4539208A1

The present disclosure relates to a module frame (24) for a battery module (22), the module frame (24) being adapted to accommodate at least a first cell stack (26) comprising two or more battery cells (26', 26") and a second cell stack (28) comprising two or more battery cells (28', 28"), the module frame (24) comprising a partition member (30) adapted to at least partially partition the module frame (24) into a first module frame area (32), adapted to accommodate the first cell stack (26), and a second module frame area (34), adapted to accommodate the second cell stack (28), the partition member (30) comprising a partition member wall assembly (36) at least partially enclosing a closed partition member cavity (38), the module frame (24) comprising a heat absorbing agent (40) accommodated by the partition member cavity (38).

BUSBAR CONNECTOR AND METHOD FOR PROVIDING A BUSBAR CONNECTOR

Resumen de: EP4539239A1

The invention relates to a busbar connector for providing one or more electrical connections within or to a battery module or a battery pack, the battery module or battery pack comprising one or more battery cells, wherein the busbar connector comprises:- at least one electric connector for electrically contacting one or more battery cells,- an electrically insulating material at least partly surrounding said electric connector, and- at least one thermal management channel for thermal management of at least one battery cell and/or of said at least one electric connector,and wherein said at least one thermal management channel isc) co-extruded with said electrically insulating material and/or said at least one electric connector and/ord) provided by a fluid injection technique and/or projectile injection technique.

LITHIUM METAL BATTERY, AND METHOD OF MANUFACTURING LITHIUM METAL BATTERY

Nº publicación: EP4539158A2 16/04/2025

Solicitante:

SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD

Resumen de: EP4539158A2

A lithium metal battery and a method of manufacturing the same are described herein. The lithium metal battery includes a cathode, an anode, and an electrolyte layer between the cathode and the anode, wherein the anode includes an anode current collector and an electrodeposition inducing layer on the anode current collector, and the electrodeposition inducing layer includes chromium (Cr).