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COMPOSITE NEGATIVE ELECTRODE SHEET, PREPARATION METHOD THEREFOR, AND LITHIUM ION BATTERY USING SAME

Resumen de: EP4679517A1

A composite negative electrode sheet, a preparation method thereof, and a lithium ion battery using the same are provided. The composite negative electrode sheet includes a current collector, an active coating and an insulation coating that are disposed in sequence. The insulation coating includes a polymer, an inorganic filler, and a fast ion conductor, the active coating includes a binder and an active material, and a solubility parameter difference between the polymer and the binder is expressed as |Δδ| that is greater than 0.5 (J/cm<3>)<1/2>.

BEADING DEVICE FOR CYLINDRICAL BATTERY ADDITIONALLY INCLUDING POSITION MEASUREMENT DEVICE

Resumen de: EP4679586A1

Disclosed is a beading apparatus for cylindrical batteries including: an individual beading unit including a beading knife configured to form a beading portion on a side surface of a cylindrical can; a backup roller configured to support the cylindrical can on the other side surface of the cylindrical can when the beading knife forms the beading portion on the cylindrical can; and an upper CFB having a bearing structure and a lower CFB having a bearing structure respectively disposed above and below; a cam structure on which the individual beading unit is provided, wherein the cam structure includes one or more wherein the cam structure includes one or more individual beading units disposed in a circle, and the cam structure is configured to rotate the individual beading unit about a circular central axis; and a position measurement unit configured to measure a position of at least one of the beading knife, the backup roller, the upper CFB, or the lower CFB. A beading method for cylindrical batteries using the same, a cylindrical can beaded using the beading apparatus for cylindrical batteries, a cylindrical battery including the same, and an electrical apparatus and transportation means including the same may be provided.

NEGATIVE ELECTRODE ACTIVE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4679522A1

A negative electrode active material, and a preparation method therefor and a use thereof. The negative electrode active material comprises a graphite material, and the graphite material comprises first graphite and second graphite. Two types of graphite having a certain pressure-relief rebound rate are selected, and are combined with a Dn10 range controlled and a distribution width limited. A negative electrode sheet can have high particle packing density and compaction level, so that good electrical contact between negative electrode active materials and sufficient infiltration of an electrolyte can both be ensured, thereby prolonging high-temperature cycle life while considering charging capability and energy density.

TEMPERATURE MANAGEMENT FOR BATTERIES

Resumen de: EP4678466A1

A computer system is disclosed for determining a target operating temperature for a battery, the computer system comprising processing circuitry configured to determine a first cost associated with a resistance of the battery, determine a second cost associated with a life expectancy of the battery, and determine a target operating temperature for the battery such that a sum of the first and second costs is below a threshold, wherein the first cost comprises a third cost associated with one or more of increasing a discharge power of the battery and decreasing a charging time of the battery. A computer-implemented method for determining a target operating temperature for a battery is also disclosed.

BATTERY LIQUID COOLING SYSTEM AND BATTERY PACK

Resumen de: EP4679566A1

Provided are a battery liquid cooling system and a battery pack. The system includes at least two liquid cooling flow path modules. All the liquid cooling flow path modules are sequentially arranged in a first direction (X). The liquid cooling flow path module includes multiple serpentine tubes (400) and multiple expanded-joint tubes (600). All the serpentine tubes (400) are disposed side by side at intervals in the first direction (X). The serpentine tubes (400) extend in a second direction (Y). A folded-back flow channel extending in a length direction of the serpentine tube (400) is disposed within the serpentine tube (400). A liquid inlet end of the serpentine tube (400) and a liquid outlet end of the serpentine tube (400) are respectively disposed at two ends of the folded-back flow channel and are located at the same end in the length direction of the serpentine tube (400). Every two adjacent serpentine tubes (400) communicate with each other through two expanded-joint tubes (600) in an expansion manner. A first expanded-joint tube (600) of the two expanded-joint tubes (600) is a liquid inlet tube (610), and a second expanded-joint tube (600) of the two expanded-joint tubes (600) is a liquid outlet tube (620). The liquid inlet tube (610) communicates with liquid inlet ends on the serpentine tubes (400), and the liquid outlet tube (620) communicates with liquid outlet ends on the serpentine tubes (400).

METHOD FOR MANUFACTURING SINTERED BODY, STRUCTURE, AND COMPOSITE STRUCTURE

Resumen de: EP4678616A1

The present invention provides a method for manufacturing a sintered body, the method including heating a mixture that contains a plurality of particles of a metal oxide having a spinel-type structure, and a metal acetylacetonate under pressure at a temperature of a melting point or higher of the metal acetylacetonate and 600°C or lower, to form a sintered body that contains the metal oxide having the spinel-type structure. Further, the present invention provides a structure manufactured by the method, and a composite structure formed by joining the structure and a base material together with a joining layer.

Battery cluster and energy storage

Resumen de: GB2642583A

The present application provides a battery cluster and an energy storage system. The battery cluster, by means of an installation position provided for a battery pack in a fixing apparatus, can achieve the fixation of the battery pack; moreover, a fixing position is also provided for a cable in the fixing apparatus, and the cable is fixed to the corresponding fixing position, so that when the battery cluster is transported, the cable and the fixing apparatus can be packaged together for transportation, and the transportation cost is thus reduced.

METHOD AND SYSTEM FOR DESIGNING A BATTERY MODULE

Resumen de: EP4679561A1

The present disclosure relates to a method and system for designing a battery module. The method of designing an optimal battery module may include: receiving target design information about a target battery module that includes a target battery cell; predicting aging of the target battery cell based on the target design information by using a cell aging prediction model that correlates a design of a battery module including a battery cell and aging of the battery cell; and determining whether the target design information is feasible based on the target design information and the predicted aging of the target battery cell.

SECONDARY BATTERY CHARGE AND DISCHARGE PIN AND PROBE FOR SECONDARY BATTERY CHARGE AND DISCHARGE TEST INCLUDING THE SAME

Resumen de: EP4679667A1

The present disclosure provides a secondary battery charge and discharge pin (120, 220, 420, 600, 800, 1020, 1312) and a probe for a secondary battery charge and discharge test including the same. A secondary battery charge and discharge pin (120, 220, 420, 600, 800, 1020, 1312) according to the present disclosure includes a head (122, 222, 422, 1100, 1314) configured to come into contact with a terminal of a secondary battery (112, 312, 512, 712, 912, 1012), and an insulating member (130, 230, 430, 630, 830, 930, 1030, 1130, 1230, 1316) configured to cover at least a part of the head (122, 222, 422, 1100, 1314).

DEVICE, TRANSPORT UNIT AND METHOD FOR TRANSPORTING LIMP ELEMENTS

Resumen de: EP4678575A1

Die vorliegende Erfindung betrifft eine Vorrichtung (1), eine Transporteinheit (43) sowie ein Verfahren (50) zum Transportieren von biegeschlaffen Elementen (48), insbesondere für die Herstellung einer Batterie- und/oder Brennstoffzelle. Die Vorrichtung (1) umfasst eine Transporteinrichtung (2) zum Transportieren eines biegeschlaffen Elements (48) von einem ersten Bereich (A) zu einem zweiten Bereich (B), eine Führungsplatte (3) zur Führung der Transporteinrichtung (2), eine Antriebseinheit (4) zum Bewegen der Transporteinrichtung (2), eine Hubeinrichtung (5) zur Kopplung der Antriebseinheit (4) und der Transporteinrichtung (2), und einen Montagerahmen (6), wobei die Führungsplatte (3) einen plattenartigen Hauptkörper (13), eine in sich geschlossene Führungskontur (14) und eine Durchgangsöffnung (15) aufweist; die Transporteinrichtung (2) mittels der Führungskontur (14) geführt ist; die Antriebseinheit (4) eine Antriebswelle (16) aufweist, die sich in der ersten Richtung (X) erstreckt, und axial fest in der Durchgangsöffnung (15) der Führungsplatte (4) aufgenommen ist; und die Hubeinrichtung (5) die Transporteinrichtung (2) und die Antriebseinheit (4) drehmomentübertragend miteinander koppelt und dazu eingerichtet ist, einen Abstand zwischen der Antriebswelle (16) und der Transporteinrichtung (2) in einer zweiten Richtung (Z) positionsabhängig anzupassen.

ELECTRODES FOR BATTERIES

Resumen de: WO2024211042A2

Disclosed herein is a method comprising mixing a first polymer binder with carbonaceous conductive materials to produce a first blend; adding to the first blend a second polymer binder in a first solvent to produce a second blend; mixing the second blend; adding to the second blend a third polymer binder in a second solvent to produce a third blend; mixing the third blend; adding to the third blend an active material to form an active material composition; and mixing the active material composition.

VENT PLATE AND SECONDARY BATTERY CELL INCLUDING SAME

Resumen de: EP4679603A1

A secondary battery cell according to an embodiment of the present disclosure may include: a case forming an inner space and including an opening on at least one side thereof; an electrode assembly arranged in the inner space and having a negative electrode and a positive electrode alternately stacked with a separator therebetween; a cap plate arranged to cover the opening; and a vent portion that is opened when the inner space reaches a preset pressure range, and includes a base and a notch portion formed in the base, wherein the notch portion satisfies relational expression 1 with the base. 1.2<100*b*c/a<2.9 (a: Thickness of base, b: Width of notch portion, and c: Thickness of notch portion)

COMPOSITE SEPARATOR AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4679607A1

Provided are a composite separator including: a porous substrate, and an adhesive layer which is provided on at least any one surface of the porous substrate and includes a core-shell type polymer fiber, and a secondary battery including the same.

BATTERY STRUCTURE AND BATTERY PACK

Resumen de: EP4679559A1

Provided are a battery structure and a battery pack. The battery structure includes a first housing (1) and a battery (11) assembled within the first housing (1); and a second housing (2) and a capacitor (21) assembled within the second housing (2). A positive terminal of the battery (11) is provided with a first positive output member (12), and a cover plate of the battery (11) serves as a negative terminal of the battery (11). A positive terminal of the capacitor (21) is provided with a second positive output member (22), and a negative terminal of the capacitor (21) is provided with a negative output member (23).

SECONDARY BATTERY

Resumen de: EP4679570A1

A secondary battery according to embodiments of the present disclosure comprises: a case; and a stack housed within the case, wherein the stack comprises: a plurality of electrode assemblies; and an insulating barrier structure disposed between the electrode assemblies. Accordingly, thermal transfer between the electrode assemblies is prevented, thereby improving the safety of the secondary battery.

ELECTRODE MATERIAL, ELECTRODE SLURRY, PRODUCTION METHOD FOR ELECTRODE MATERIAL, ELECTRODE, AND PRODUCTION METHOD FOR ELECTRODE

Resumen de: EP4679532A1

An electrode material 1 for a secondary battery, which is capable of suppressing a decrease in an electrode capacity and having excellent cycle characteristics, includes an electrode active material 10, and the entire surface or part of the surface of the electrode active material 10 is covered in a shell shape with a nonaqueous binder 20.

END COVER ASSEMBLY, ENERGY STORAGE APPARATUS, AND ELECTRICITY-CONSUMPTION DEVICE

Resumen de: EP4679622A1

An end cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the present disclosure. The end cover assembly includes an end cover (10), a lower plastic member (20), a terminal post (30), and a current-collector disk (60). The lower plastic member (20) includes a lower-plastic-member body (21) and a limiting protrusion portion (22). The limiting protrusion portion is implemented as two limiting protrusion portions that both protrude from the second surface. Each of the two limiting protrusion portions has a first sidewall surface (221), a second sidewall surface (222), and an end surface (223). The first sidewall surface is inclined. The second sidewall surface is inclined. The end surface is connected between the first sidewall surface and the second sidewall surface. Each of the two limiting protrusion portions defines a flow guiding groove (224). The current-collector disk (60) includes a connecting portion (62) and a disk body (61). In the thickness of the end cover assembly, the disk body (61) is positioned at one side of the two limiting protrusion portions (22) positioned facing away from the lower-plastic-member body (20). An orthographic projection of the disk body (61) on the second surface is positioned within the lower-plastic-member body (20). An orthographic projection of the end surface of each of the two limiting protrusion portions (22) on the second surface is positioned within the orthographic projection of the di

WELDING APPARATUS FOR CYLINDRICAL BATTERY HAVING WELDING ROD OVERLAP MEASURING UNIT

Resumen de: EP4678324A1

Disclosed is a welding apparatus including an upper welding unit including an upper welding rod, a first object to be joined located under the upper welding rod, a second object to be joined located under the first object to be joined, and a lower welding unit including a lower welding rod located under the second object to be joined, wherein the first object to be joined and the second object to be joined are welded to each other by resistance welding using the upper welding rod and the lower welding rod, and a displacement measurement unit configured to measure the displacement of a buffer portion provided on at least one of an upper end of the upper welding rod or a lower end of the lower welding rod by further pressing in the state in which the upper welding rod, the first object to be joined, the second object to be joined, and the lower welding rod face each other in tight contact with each other.

BATTERY MODULE, BATTERY PACK, AND VEHICLE INCLUDING SAME

Resumen de: EP4679569A1

Provided is a battery module capable of improving the cooling performance of battery cells by directly cooling the battery cells. A battery module of the present disclosure includes a cell module assembly including a plurality of battery cells; a module case that supports a bottom and side surfaces of the cell module assembly and opens a top of the cell module assembly; and a top cooling cover assembly that is coupled to the module case and covers the top of the cell module assembly to form a sealed structure and cools the battery cells from the top to the bottom thereof by directly spraying insulating oil.

GAS COLLECTION DEVICE

Resumen de: EP4679054A1

Disclosed is a gas collection device capable of precisely and stably transferring collected gases to be analyzed to a gas analysis module by automating the loading, unloading, punching, and the like of a plurality of batteries.

ADHESIVE-TAPE AFFIXING DEVICE AND WINDING APPARATUS

Resumen de: EP4679544A1

A winding apparatus includes a tape bonding device. The tape bonding device is arranged on a conveying path of a pole piece. The tape bonding device includes: a pulling-apart mechanism; a pole piece cutting mechanism and a tape bonding mechanism. The pole piece cutting mechanism is configured to cut the pole piece so that the pole piece is divided into a first pole piece and a second pole piece. The first pole piece and the second pole piece each has a first free end and a second free end that are oppositely arranged. The pulling-apart mechanism is configured to pull the first pole piece and/or the second pole piece so that a gap is formed between the first free end and the second free end in a conveying direction of the pole piece. The tape bonding mechanism includes a first tape feeding assembly, a tape bonding assembly and a first tape storing assembly.

FLEXIBLE SUBSTRATE PASSIVATION

Resumen de: WO2024191662A1

In one embodiment, a flexible substrate processing system is provided comprising: a pickup hub; a calendering unit comprising a first calender roller and a second calender roller; and a passivation unit having an interior volume, the pickup hub configured to rotate and assist in conveying a flexible substrate through the interior volume of the passivation unit after the flexible substrate passes between the first calender roller and the second calender roller, the passivation unit including one or more ultraviolet (UV) lamps configured to direct UV radiation towards the flexible substrate when the flexible substrate is conveyed through the interior volume of the passivation unit.

BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD

Resumen de: EP4679116A1

Disclosed is a battery diagnosing apparatus and a battery diagnosing method. The battery diagnosing apparatus includes a data obtaining unit configured to obtain a first profile representing a capacity-voltage relationship of a battery cell containing an active material with a multi-phase characteristic, and a processor configured to generate a plurality of comparison profiles based on a plurality of electrode profiles included in an electrode profile map. The processor is configured to select, as a second profile, one comparison profile from the plurality of comparison profiles by comparing each of the plurality of comparison profiles with the first profile, and determine a negative electrode participation end point as a diagnostic factor representing a degradation state of the battery cell based on the second profile.

LID CLOSURE FOR A SECONDARY CELL

Resumen de: EP4679579A1

There is disclosed herein a cylindrical secondary cell (2000), comprising a cylindrical casing (234) housing an electrode assembly (232), and a lid (200) for closing an open end (234b) of the cylindrical casing (234). The lid (200) comprises a first region (201) extending in a first plane (204), a second region (202) surrounding the first region (201) and extending in a second plane (205) displaced in a first direction from the first plane (201), and a third region (203) surrounding the second region (202) and extending in a third plane (206) displaced in the first direction from the second plane (202). The first region (201) comprises an electrolyte filling hole (207), and the second region comprises a vent (208) configured to vent gases from the cylindrical casing (234). There is also disclosed herein a battery pack including such a cell, and a vehicle including such a battery pack.

COOLANT TANK FOR A BATTERY MODULE, BATTERY MODULE, BATTERY PACK, AND VEHICLE

Nº publicación: EP4677682A1 14/01/2026

Solicitante:

SCANIA CV AB [SE]
Scania CV AB

Resumen de: CN120836103A

Disclosed is a battery module (3; the invention relates to a coolant tank (1, 1 ') comprising a plurality of wall segments (w1-w6, w1'-w6 ') of the coolant tank (1, 1'), where the coolant tank (1, 1 ') is configured to contain coolant in an internal volume (V, V') delimited by a plurality of wall segments (w1-w6, w1 '-w6') of the coolant tank (1, 1 '), where one wall segment (w1, w1') of the plurality of wall segments (w1-w6, w1 '-w6') forms a plurality of recessed configurations (4, 4 '), each comprising an outer surface (6, 6') delimiting the internal volume (V, V ') of the coolant tank (1, 1') and an inner surface (4, 4 ') delimiting a plurality of battery cells (8, 8 '). The disclosure also relates to a battery module (3, 3'), a battery pack (10) and a vehicle (2).