Alerta

INSULATION STRUCTURE AND BATTERY

Resumen de: EP4708555A1

The present disclosure provides an insulation structure and a battery. The insulation structure includes an insulation body and a baffle. The baffle is provided on at least one side of the insulation body in the width direction. The baffle is rotatably connected to the insulation body, with the rotation axis of the baffle extending in the length direction of the insulation body. The baffle includes a baffle body and a connecting portion that are connected to each other. The baffle body extends in the length direction of the insulation body. The connecting portion is rotatably connected to the insulation body, and the baffle body is separately provided from the insulation body.

NEGATIVE ELECTRODE FOR ALL-SOLID-STATE BATTERY, ALL-SOLID-STATE BATTERY, AND METHOD OF FABRICATING THE SAME

Resumen de: EP4708381A2

Disclosed are negative electrodes, all-solid-state batteries, and fabrication methods thereof. The all-solid-state battery includes a positive electrode layer, a negative electrode layer including a negative electrode current collector, and a negative electrode coating layer on the negative electrode current collector, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The negative electrode layer includes lithiophilic metal, carbon, an additive, and a porous polymer composite. The porous polymer composite has a particulate shape. The additive includes a binder. An amount of the porous polymer composite in the negative electrode coating layer is greater than the amount of the additive in the negative electrode coating layer.

AUTOMATIC SPINDLE ADJUSTMENT APPARATUS

Resumen de: EP4706846A1

An automatic spindle adjustment apparatus includes a base frame, a spindle adjuster on the base frame, the spindle adjuster being configured to adjust an upper spindle mover to set a moving range of an upper spindle corresponding to a target occlusal thickness of a battery cell, a vertical mover on the base frame, the vertical mover being configured to move the spindle adjuster in an up-and-down direction, and a horizontal mover on the vertical mover, the horizontal mover being coupled to the spindle adjuster and configured to move the spindle adjuster in a forward-backward direction.

BATTERY MANAGEMENT APPARATUS AND METHOD OF CONTROLLING CHARGING/DISCHARGING USING THE SAME

Resumen de: EP4708618A1

A battery management apparatus includes a measuring unit including at least one sensor, the measuring unit configured to measure a cell voltage of each of a plurality of battery cells in a battery module, and a processor configured to adjust a charging threshold voltage or a discharging threshold voltage based on a difference in cell voltage between the plurality of battery cells and a current state of charge (SOC) of the battery module if charging or discharging the battery module.

SECONDARY BATTERY, BATTERY MODULE AND ELECTRONIC APPARATUS

Resumen de: EP4708421A1

A secondary battery (100), a battery module (10), and an electronic apparatus (1) are provided. The secondary battery (100) includes a casing (110) and an electrode assembly (120). The casing (110) includes an end wall (111) and a side wall (112) surrounding the end wall (111), and an axis of the casing (110) is a first axis (114). The electrode assembly (120) accommodated in the casing (110) includes a positive terminal sheet (121), a negative terminal sheet (123), and a separator (122) stacked and wound to form a wound structure (126). A number of turns of the negative terminal sheet (123) is greater than 40 turns, and an axis of the wound structure (126) is a second axis (1261).

BATTERY CELL MANUFACTURING METHOD AND BATTERY CELL

Resumen de: EP4708405A1

Problem To reduce insufficient welding of resins at the time of manufacturing of a battery cell.Means for Solution A method of manufacturing a battery cell 1 includes: layering electrode sheets 3 and 4 in a layering direction L, the electrode sheets 3 and 4 each having an electrode 32 or 42 placed in a container 10 and a current collector 31 or 41 that is connected to the electrode in the container and protrudes to the outside through an opening 12 or 13 of the container; applying pressure and heat to a resin 51 placed between the current collector and the current collector layered on each other from outer sides toward a center in the layering direction L; causing the resin being melted to flow through a through hole 34 formed in the current collector in the layering direction L and fill the through hole; and welding the resin between the current collector and the current collector and sealing the opening of the container.

ASSEMBLY METHOD FOR SECONDARY BATTERY, SECONDARY BATTERY, BATTERY PACK, AND ELECTRONIC DEVICE

Resumen de: EP4708551A1

Disclosed are an assembly method for a secondary battery (1), a secondary battery (1), a battery pack (8) and an electronic device (9). The assembly method for the secondary battery (1) includes the following steps: an assembly step, assembling a current collector (30) and a terminal (40), so that a wall portion (405) of the terminal (40) abuts against the current collector (30); a welding step, irradiating a laser spot on the wall portion (405), and moving the laser spot along a helical trajectory, welding the wall portion (405) and the current collector (30) to form a weld mark (60), wherein, on a cross-section passing through a terminal axis, the weld mark (60) extends from a first end (60a) located on a surface of the wall portion (405) facing away from the current collector (30) to a second end (60b) located inside the current collector (30).

METHOD FOR STORING ROLL MAP AND METHOD FOR EXTRACTING ROLL MAP

Resumen de: EP4708069A1

Example embodiments of the present technology provide a roll map storing method. The roll map storing method includes transmitting compressed measurement data, which is generated by processing measurement data collected by measuring an electrode sheet, to a server, modifying the compressed measurement data to generate modified measurement data, and storing the modified data, in which the compressed measurement data includes a first measurement start coordinate, a first measurement end coordinate, a first representative value of a first section defined by the first measurement start coordinate and the first measurement end coordinate, a second measurement start coordinate, a second measurement end coordinate, and a second representative value of a second section defined by the second measurement start coordinate and the second measurement end coordinate, and the first measurement start coordinate and the second measurement start coordinate are the same.

ROLL MAP CREATION SYSTEM

Resumen de: EP4708370A1

A roll map creation system includes an inspection measurement device for moving electrodes represented by the first roll map created in the preceding process from the unwinder to the rewinder and inspecting the electrodes to obtain inspection and/or measurement data; and a roll map creation device for creating a second roll map by assigning coordinates to the electrodes, and matching the inspection and/or measurement data according to the coordinates of the electrodes, where the roll map creation device is configured to create correction data of the difference in lengths when the first roll map length (A) and the second roll map length (B) differ.

SECONDARY BATTERY

Resumen de: EP4708445A1

A secondary battery according to an embodiment of the present invention may include a battery can having an opened upper side and configured to define an accommodation space therein, a top cap configured to cover the opened upper side of the battery can, an electrode assembly having a shape in which a positive electrode plate and a negative electrode plate are wound and sequentially stacked with a separator therebetween and disposed in the accommodation space; an electrode lead configured to electrically connect the electrode assembly to at least one of the battery can or the top cap, and a first extinguishing part including an extinguishing component and disposed between the electrode assembly and the battery can.

POSITIVE ELECTRODE ACTIVE MATERIALS, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: EP4708379A1

A positive electrode active material is provide, the positive electrode active material including a first positive electrode active material including a lithium iron phosphate-based compound; and a second positive electrode active material including lithium nickel-based composite oxide; wherein the second positive electrode active material is included in an amount of ≥ 1 wt% to ≤ 15 wt% based on 100 wt% of the first positive electrode active material and second positive electrode active material. The positive electrode active material, the positive electrode including the same, and the rechargeable lithium battery according to some example embodiments may achieve high capacity and excellent or suitable stability.

SENSING ASSEMBLY AND MANUFACTURING METHOD OF BATTERY CELL STACK

Resumen de: EP4708517A1

A sensing assembly includes a plurality of busbars and a plurality of sensing frames arranged along a first direction to support the plurality of busbars. The sensing frames includes a middle sensing frame and an outer sensing frame disposed on a first side of the middle sensing frame along the first direction. The middle sensing frame includes: a first peripheral surface facing toward one side in the first direction; a second peripheral surface disposed on an opposite side to the first peripheral surface and facing toward an opposite side in the first direction; a support surface connected with the second peripheral surface and facing toward one side in a second direction crossing the first direction; a guide protrusion protruding from the first peripheral surface toward the one side in the first direction; and a guide groove disposed where the support surface and the second peripheral surface are connected.

SECONDARY BATTERY, BATTERY ASSEMBLY, AND ELECTRONIC DEVICE

Resumen de: EP4708420A1

A secondary battery (300) including a housing (320) having an end wall and a sidewall, a positive electrode sheet, a first separator (210), a negative electrode sheet (220), a second separator (210), a first collector plate (310), and a first insulation film (230) is provided. An opening (330) is formed on one side of the sidewall facing away from the end wall. The positive electrode sheet, the first separator (210), the negative electrode sheet (220), and the second separator (210) are stacked and wound sequentially to form an electrode assembly (200) accommodated in the housing (320). The first collector plate (310) is disposed on one end of the electrode assembly (200) facing the opening (330), and the housing (320) is electrically connected to the negative electrode tab (221) through the first collector plate (310). The first insulation film (230) is wrapped around an outer periphery of the electrode assembly (200).

BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4708511A1

Disclosed is a battery pack having a stable fixing structure. The battery pack includes a pack case having a predetermined accommodation space; and a cell array stack including a plurality of cell array structures that are stacked in multi stages, the cell array stack having a case mounting portion fixed to at least one side wall of the pack case.

Lithium ion battery pack and charging system

Resumen de: GB2643966A

A lithium ion battery pack (10) comprises: a lithium ion battery cell (20); a housing in which the lithium ion battery cell (20) is built and which is provided with a positive electrode terminal (Pvcc+), a negative electrode terminal (Pvcc-), and communication terminals (Pcl+, Pcl-); a BMS circuit (110) which is built in the housing and which includes a control unit that controls charging and discharging of the lithium ion battery cell (20); a communication IC (40) which causes terminal voltage values of the lithium ion battery cell (20) to output to the outside through the communication terminals (Pcl+, Pcl-) without passing through the BMS circuit (110); a first relay circuit (61) which, upon receiving a first control signal from the control unit of the BMS circuit (110), conducts or cuts off power supply to the lithium ion battery cell (20) through the positive electrode terminal (Pvcc+) and the negative electrode terminal (Pvcc-); an LDO (51) which supplies power to the control unit; and an LDO(52) which supplies power to the communication IC (40) separately from the LDO (51).

ENERGY STORAGE SYSTEM

Resumen de: EP4708494A2

An energy storage system includes a module unit comprising the plurality of battery modules. The plurality of battery modules each accommodates a plurality of cell units. Each of the plurality of cell units comprise a plurality of battery cells arranged in a first direction and are arranged in a second direction, perpendicular to the first direction. A pipe portion is connected to a fire extinguishing tank storing a fire extinguishing agent and extends into the module unit. The pipe portion includes a main pipe extending from the fire extinguishing tank and a sub-pipe branched from the main pipe. One end of the sub-pipe is connected to a first branch point of the main pipe, and another end of the sub-pipe is connected to a second branch point of the main pipe. The sub-pipe extends to pass through all the plurality of battery modules.

METHOD AND ARRANGEMENT FOR HEATING A VEHICLE BATTERY OF A MOTOR VEHICLE

Resumen de: EP4707037A1

Die Erfindung betrifft ein Verfahren zum Heizen einer Fahrzeugbatterie (51) eines Kraftfahrzeugs (50), wobei das Kraftfahrzeug (50) einen Pulswechselrichter (2) und eine Elektromaschine (52) aufweist, wobei die Elektromaschine (52) als fremderregte Synchronmaschine (53) ausgebildet ist, wobei einer Drehzahl (n) der Elektromaschine (52) mittels einer Zuordnungsvorschrift (4) ein magnetischer Fluss (ψ) zugeordnet wird, wobei dem magnetischen Fluss (ψ) und einem Drehmoment (T) durch Zuordnungsvorschriften (5, 6) ein Längsstrom (id) und ein Querstrom (iq) zugeordnet wird, wobei ein periodischer Zusatzfluss (Δz) erzeugt wird, der nur der Zuordnungsvorschrift (6) für den Querstrom (iq) zugeführt wird, wobei die Modulation des periodischen Zusatzflusses (ψz) in einem Bereich (S) eines iq-id-Maschinenkennfeldes stattfindet, in dem die Linien konstanten Drehmomentes (T) nahezu vertikal verlaufen, sowie eine Anordnung (1).

ELECTROLYTE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE

Resumen de: EP4708440A1

An electrolyte includes a compound of formula Iand a compound of formula IIBased on a mass of the electrolyte, a mass percentage A of the compound of formula I satisfies 0.01% ≤ A ≤ 70%, and a mass percentage B of the compound of formula II satisfies 2.0% ≤ B ≤ 20%.

ENERGY STORAGE DEVICE AND ELECTRIC DEVICE

Resumen de: EP4708495A1

An energy storage device includes a first housing (1), provided with a first cavity (1s), the first housing (1) including a first abutting member (101) located in the first cavity (1s); a second housing (2), provided with a second cavity (2s) and a second abutting member (201), the second abutting member (201) being connected to the second housing (2); and a sealing element (3), located in the first cavity (1s), the sealing element (3) being connected between the first abutting member (101) and the second abutting member (201), where the first cavity (1s) and the second cavity (2s) communicate to form a first space (12s), and the first space (12s) is configured to accommodate a cell assembly and/or an electrical assembly (4).

MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4708425A1

The manufacturing method of the nonaqueous electrolyte secondary battery is provided, which includes a construction step for constructing a secondary battery whose volume is equal to or more than at least 500 cm³, an initial electrically charging step for electrically charging the secondary battery until a SOC becomes 20% to 39%, a high temperature aging step for heating up and holding the secondary battery in a high temperature range, a room temperature aging step for cooling down the secondary battery being in the high temperature range and then holding the secondary battery in a room temperature range, and an inspecting resistance step for calculating an internal resistance of the secondary battery while the secondary battery is maintained in the room temperature range.

ENERGY STORAGE SYSTEM

Resumen de: EP4708457A1

The present disclosure provides an energy storage system (10). The energy storage system (10) includes: a plurality of battery modules (40) each of which battery module (40) includes a plurality of battery cells (50); a first cooling system (100) that cools a first battery module set (42) among the plurality of battery modules (40); a second cooling system (102) that cools a second battery module set (44) among the plurality of battery modules (40); a central valve (300) that controls a flow of a refrigerant between the first cooling system (100) and the second cooling system (102); and a battery management system (200) that monitors and controls operations of the plurality of battery modules (40), the first cooling system (100), the second cooling system (102), and the central valve (300). The battery management system (200) controls the central valve (300) to control the flow of the refrigerant between the first cooling system (100) and the second cooling system (102) depending on whether an abnormality occurs in the operation of any one of the first cooling system (100) and the second cooling system (102).

ENERGY STORAGE SYSTEM

Resumen de: EP4708527A1

An energy storage system includes a container having an accommodation space therein, at least one battery rack in the accommodation space inside the container, the at least one battery rack having a plurality of battery modules stacked thereon, an event detection device inside the container, at least one vent on an outer surface of the container, a nitrogen supply device that supplies nitrogen gas into the container, and a control unit electrically connected to the event detection device and the nitrogen supply device, the control unit driving the nitrogen supply device in response to the event detection device detecting an event.

MULTI-SWITCH CONTACTOR ASSEMBLY WITH A PRE-CHARGE RELAY

Resumen de: EP4708343A1

In an embodiment, a multi-switch contactor assembly with a pre-charge system is disclosed. The multi-switch contactor further includes an array of switches and an actuator assembly configured to actuate each switch of the array of switches. In this embodiment, the array of switches includes a first switch configured to connect a first battery device to a circuit and a second switch configured to connect a second battery device to the circuit. The array of switches also includes a third switch configured to connect the first battery device and the second battery device in series to the circuit and a fourth switch configured to connect a pre-charge resistor to at least one of the first battery device and the second battery device.

BATTERY MODULE WITH IMPROVED STABILITY

Resumen de: EP4708503A1

The present invention provides: a structure of a battery module comprising: a plurality of battery cells stacked in widthwise direction, each of the plurality of battery cells having a pair of electrode leads protruding in upward direction; a frame having an open upper portion and accommodating the cell stack; and a resin having an insulating property and filling at least a portion of a space between the cell stack and the frame; and a method of manufacturing the same.

BUTTON CELL

Nº publicación: EP4708489A1 11/03/2026

Solicitante:

EVE ENERGY CO LTD [CN]
Eve Energy Co., Ltd

Resumen de: EP4708489A1

The present application provides a button battery. The button battery comprises: a first substrate, a first annular wall, and a sealing member. The first annular wall is arranged around a periphery of the first substrate and forms an accommodating cavity with the first substrate, and at least a part of the sealing member is located on a side, away from the accommodating cavity, of the first annular wall. A second housing includes a second substrate and a second annular wall. The second substrate is configured to cover and seal the accommodating cavity, and the second annular wall is connected to a periphery of the second substrate.