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INTUMESCENT COATINGS

Resumen de: EP4793325A2

Intumescent coating compositions comprising TiO₂ in an amount of 5-20 wt %, a phosphate source in an amount of 20-55 wt %, based on total solid weight and a borate source, aluminum source and/or silica source, are disclosed, as are methods for using such compositions and substrates coated with same.

BATTERY MANAGEMENT SYSTEM AND MANAGEMENT METHOD

Resumen de: EP4794282A2

0001 The present invention relates to battery system comprising a switching unit (14) configured to control a current flow for a battery; a battery pack (1) including a group of battery cells being monitored by a lower-level battery management system; an upper-level battery management system (100) for the battery pack; wherein the lower-level battery management system monitors a battery status by sensing temperature, voltage, or current of a battery module or cell and transmit monitored information to the upper-level battery management system; wherein the upper-level battery management system receives battery status information and transmit information to an upper-level control unit or transmit information obtained by determining a battery status based on the received information to the upper-level control unit; a channel change unit configured to handle wireless communication channels between the lower-level and the upper-level battery management systems; wherein, for maintaining continuity of communications through wireless communication channels, the channel change unit periodically changes wireless communication channels to perform communications through a second communication channel for a preset time period which is different from a first communication channel; a communication interface performs communications with the outside of the battery system; and a memory in which programs relating to battery management process are recorded.

BATTERY MODULE COMPRISING COOLING MEMBER AND BATTERY PACK AND POWER STORAGE DEVICE

Resumen de: EP4794103A2

0001 Disclosed is a battery module that reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.

SYSTEM AND METHOD FOR INDIVIDUAL CHARGING CELLS OF A BATTERY

Resumen de: EP4794169A2

A method for maintaining a power source (60) can include selecting, by a controller module (90), a rechargeable power storage device (62) from a set of power storage devices (62) arranged to selectively provide a summated output of the power source (60), and selectively enabling, by the controller module (90), the selected power storage device (62) to discharge its stored power at the output of the power source (60). The controller module (90) can compare a sensed voltage of the selected power storage device (62) with a minimum voltage threshold.

ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4794105A1

An electrode sheet (100), a secondary battery (500), and an electronic device (1000) are provided. The electrode sheet (100) includes: an electrode sheet body (160), including a current collector (110) and an active material layer (130), the current collector (110) has two opposite surfaces, and the two surfaces are respectively coated with active material layers (130); and a tab (150), extending from the electrode sheet body (160), the tab (150) is provided with a second stiffener region (192) and a first stiffener region (191), the second stiffener region (192) is disposed between the first stiffener region (191) and the active material layer (130), a stiffener (190) is disposed in the first stiffener region (191) and the second stiffener region (192), a depth (H1) of the stiffener (190) in the first stiffener region (191) is greater than a depth (H2) of the stiffener (190) in the second stiffener region (192).

CONNECTING DEVICE, THERMAL MANAGEMENT CIRCUIT AND VEHICLE

Resumen de: EP4793574A1

0001 The present disclosure proposes a connecting device that connects an expansion valve and a cooling device, the connecting device comprising: an inlet pipeline, the inlet pipeline being in fluid connection with an expansion valve outlet; a first outlet pipeline, the first outlet pipeline comprising a first outlet end and a first inlet end connected to the inlet pipeline. An injection part is provided in the inlet pipeline, the injection part having a blocking part that extends in a cross section of the inlet pipeline and an injection port that is partitioned by the blocking part. 0002 The present disclosure further proposes a thermal management circuit, comprising an expansion valve, which comprises an expansion valve outlet; a cooling device, which comprises a first cooling flow path; and the connecting device according to an embodiment of the present disclosure. The inlet pipeline of the connecting device is in fluid connection with the expansion valve outlet, and a first outlet end of the first outlet pipeline of the connecting device is connected to the first cooling flow path.

BATTERY PACK

Resumen de: EP4794079A1

0001 A battery pack includes a pack housing, a plurality of battery cells accommodated in the pack housing and including terminals protruding to a side, and a busbar-film assembly including a plurality of first busbars to allow the terminals of a pair of battery cells located adjacent to each other among the plurality of battery cells to be electrically connected, a first film and a second film coupled to each other with the plurality of first busbars arranged therebetween, and a first deformation area deformable by an external force between a pair of first busbars adjacent to each other among the plurality of first busbars.

CARBON COMPOSITE MATERIAL

Resumen de: EP4793233A1

A carbon composite material configured to suppress a decrease in the charge and discharge capacity of batteries, the carbon composite material comprising Si and a carbon material having an aspect ratio of 2.7 or more and 7.5 or less.

RECHARGEABLE BATTERY AND METHOD OF MANUFACTURING THE SAME

Resumen de: EP4794065A1

A manufacturing method for a rechargeable battery (1), the manufacturing method including manufacturing a case (10) having an opening on a first side, inserting an electrode assembly (30) into the case (10) through the opening, and coupling a cap assembly (50) to the first side, wherein manufacturing the case (10) includes manufacturing a first intermediate material (10') having an internal accommodation space (11) and an open first side, manufacturing a second intermediate material (10") by forming a plurality of holes (1130) on a second side opposite to the first side of the first intermediate material (10'), and coupling a first electrode terminal (150) to the second side of the second intermediate material (10").

LIQUID COOLING ASSEMBLY AND BATTERY PACK

Resumen de: EP4794057A1

A liquid cooling assembly and a battery pack are provided. The liquid cooling assembly includes a plurality of liquid cooling plates arranged at intervals and a main pipe. An installation space for mounting at least one heat-generating element is formed between two adjacent liquid cooling plates. Each of the liquid cooling plates includes a flow passage portion and a plurality of nozzles in communication with the flow passage portion. The main pipe includes a plurality of connectors, and the connectors are in one-to-one expansion connection to the nozzles and are inserted into the nozzles. An inner wall of each of the connectors is provided with a support ring that overlaps each of the nozzles (11).

INSPECTION APPARATUS AND INSPECTION METHOD

Resumen de: EP4794054A1

Disclosed herein relates to an inspection device including: an inspection jig including a first jig having a plurality of first pressure sensing elements and a second jig having a plurality of second pressure sensing elements, wherein the inspection jig is configured to generate thickness data regarding the thickness of a battery cell provided between the first jig and the second jig while the battery cell is in contact with the first jig and the second jig; and a processor configured to detect the bending dimensions and bending shape of the battery cell based on first pressure data generated from the plurality of first pressure sensing elements, second pressure data generated from the plurality of second pressure sensing elements, and the thickness data.

ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4793997A1

0001 An electrode sheet (100, 100A, 100B), a secondary battery (500), and an electronic device (1000) are provided. The electrode sheet (100, 100A, 100B) includes: an electrode sheet body (160); and an electrode tab (150, 150') extending from the electrode sheet body (160) in a first direction (D1), where a stiffener (190) is disposed on a surface of the electrode tab (150, 150'), where the stiffener (190) at least includes a first portion (192) and a second portion (194), the first portion (192) and the second portion (194) are connected through a bending part (196). An angle formed by the first portion (192) and the second portion (194) is a, 28°≤a≤45°.

ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4794106A1

0001 The disclosure provides an electrode sheet (300), including: an electrode sheet body (310), and a tab (320) protruding from the electrode sheet body (310) along a first direction (F), the tab (320) is set with a reinforcing rib array (321), the reinforcing rib array (321) includes multiple first reinforcing ribs (322); wherein in the first direction (F), every two adjoining first reinforcing ribs (322) are separated from each other. The purpose of the disclosure lies in providing an electrode sheet (300), a secondary battery (100A/B) and an electronic device (1000), so as to at least strengthen the supporting force for the tab (320).

CARBON COMPOSITE ANODE

Resumen de: EP4794016A1

0001 An anode configured to decrease the rate of area increase in planar direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is more than 35%.

POSITIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND BATTERY

Resumen de: EP4794022A1

0001 A positive electrode active material includes a secondary particle (2), wherein: the secondary particle (2) includes a first particle group and a second particle group; each of the first particle group and the second particle group is composed of primary particles (1); the second particle group has a larger average particle diameter than the first particle group; the first particle group and the second particle group are dispersed in each other in the secondary particle (2); the primary particles (1) belonging to the first particle group contain a first olivine-type compound; the primary particles (1) belonging to the second particle group contain a second olivine-type compound; and the second olivine-type compound has a lower Mn compositional ratio than the first olivine-type compound.

CARBON COMPOSITE ANODE

Resumen de: EP4794015A1

An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and wherein, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 0° or more and less than 45°, is more than 52%.

BATTERY NEGATIVE ELECTRODE SHEET AND BATTERY

Resumen de: EP4794005A1

The present application provides a battery and a negative electrode sheet thereof. The battery negative electrode sheet includes a current collector and an active layer. The active layer is coated on the surface on at least one side of the current collector. The active layer has a plurality of grooves arranged in sequence along the length direction of the current collector. The grooves each extend along the width direction of the current collector. A plurality of regions in the active layer are separated by the plurality of grooves along the length direction of the current collector. Each region has a plurality of pores.

BATTERY PACK

Resumen de: EP4794075A1

A battery pack includes: a housing; multiple cells disposed in the housing; and a coupling portion configured to be coupled to an electrical device to transmit electrical energy. The coupling portion includes: a terminal assembly configured to be electrically coupled to the electrical device; and a support portion supporting at least the connection between the electrical device and the battery pack, where the support portion includes a support cavity and a reinforcing member accommodated in the support cavity, and the reinforcing member is an independent prefabricated member and is made of the same material as the housing.

ELECTRODE SHEET AND SECONDARY BATTERY

Resumen de: EP4794104A1

An electrode sheet (100) includes a current collector (10) including a current collector body (12) and a tab (14) extending from the current collector body (12) along a first direction (d); an active material layer (20) disposed on at least one side of the current collector (10) in a thickness direction; and a reinforcement rib (30). The tab (14) has a tab bare foil region (40) where the active material layer (20) is not disposed. In the first direction (d), the reinforcement rib (30) continuously extends from the tab bare foil region (40) to a surface of the active material layer (20). The disclosure provides an electrode sheet (100) and a secondary battery (1300) to at least achieve avoiding tab folding.

CARBON COMPOSITE ANODE

Resumen de: EP4794014A1

0001 An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a first carbon material having an aspect ratio of more than 1, and a second carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; the second carbon material is second carbon material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of those that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is 62% or more.

ENERGY STORAGE SYSTEM SWITCHING MANAGEMENT METHOD

Resumen de: EP4794159A1

0001 Disclosed in the present invention is an energy storage system switching management method, comprising: determining a working state of each battery system on the basis of the current of each battery system, wherein the working state includes a static state, a charging state and a discharging state; for the battery systems in the static state, carrying out static open-circuit voltage calibration on the battery systems; for the battery systems in the charging state, carrying out switching management on the charging process of each battery system on the basis of the total battery voltage or the state of charge of each battery system; and for the battery systems in the discharging state, carrying out switching management on the discharging process of each battery system on the basis of the total battery voltage or the state of charge of each battery system. Therefore, according to the present invention, different working states can be accurately distinguished, and then corresponding switching management is carried out on the basis of different working conditions, so that the efficiency is relatively high, and the effect of switching management is good.

LOW-IMPEDANCE STORAGE BATTERY

Resumen de: EP4794085A1

Provided in the present invention is a low-impedance storage battery, which comprises: an accommodation case, which is internally provided with an accommodation space; a first energy storage module, which is used for accumulating or supplying electric energy and is provided in the accommodation case; and a second energy storage module, which is used for storing or supplying a short-time large current and is provided in the accommodation case, the first energy storage module and the second energy storage module being electrically connected to each other. The second energy storage module at least comprises a circuit board, the circuit board having a second positive electrode and a second negative electrode. One side of the accommodation case is provided with a first electrical connector and a second electrical connector. One end of the first electrical connector and one end of the second electrical connector pass out of the accommodation case, and the other end of the first electrical connector and the other end of the second electrical connector are located in the accommodation case. The second positive electrode and the second negative electrode on the circuit board of the second energy storage module are respectively fixed at one end of the first electrical connector and one end of the second electrical connector in the accommodation case.

MULTIFUNCTIONAL POLYNORBORNENE BINDER SYSTEM

Resumen de: US2025118756A1

A cathode electrode assembly is disclosed, the cathode electrode assembly comprising an active material, a current collector, a conductive additive substance, and a polynorbornene-based (PNB) polymer binder configured to bind the active material and the conductive additive substance and maintain electrical contact between the active material and the conductive additive substance with the current collector. An alternative cathode electrode assembly comprising active material, a current collector, a conductive additive substance, a PNB polymer binder, and at least one polyacrylic acid (PAA) side chain configured to interface with the PNB polymer binder is also disclosed. A functional group is further disclosed, the functional group being configured to interface with a binder in a cathode electrode assembly of an electric battery system, the functional group comprising at least one PAA side chain.

APPARATUS FOR FORMING INCISIONS IN ELECTRODE PRECURSORS

Resumen de: WO2025078957A1

An apparatus (10) for forming incisions in electrode precursors comprises a laser head (11) configured to emit a laser beam (LB) having a predetermined wavelength along an optical path (OP), an incision formation zone (NZ) placed along the optical path (OP) of the laser beam (LB), a support device (12) for an electrode precursor (100) comprising a support structure (13) configured to receive and support the electrode precursor (100). The incision formation zone (NZ) is placed along a first portion (16) of the support structure (13) and in the incision formation zone (NZ) the first portion (16) of the support structure (13) is traversed by the optical path (OP) of the laser beam (LB). At least the first portion (16) of the support structure (13) is made of a material that is transparent to a laser beam having said predetermined wavelength.

APPARATUS FOR FORMING INCISIONS IN AN ELECTRODE PRECURSOR AND METHOD FOR FORMING INCISIONS IN AN ELECTRODE PRECURSOR

Nº publicación: EP4792365A1 19/08/2026

Solicitante:

GD SPA [IT]
G.D S.p.A.

Resumen de: WO2025078960A1

An apparatus (10) for forming incisions in electrode precursors comprise a support drum (12) rotatable around a rotation axis (R1 ) and comprising a support surface (13) configured to receive and to support the electrode precursor (100), a laser head (11 ) placed at the rotation axis (R1 ) of the support drum (12) and configured to emit a laser beam (LB) along an optical path (OP), an incision formation zone (NZ) placed along the optical path (OP) of the laser beam (LB). The incision formation zone (NZ) is placed cantilevered with respect to said support surface (13). An adhesion device (16) is configured to generate forces (F) which have components having directions transverse to the support surface (13) and towards the support surface (13), the adhesion device (16) being configured to generate said forces (F) on the electrode precursor (100).