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ESTIMATING TEMPERATURE OR CHARGE STATE OF EXTERNAL BATTERY OF POWER SUPPLY

Absstract of: EP4790869A1

A method is provided and includes receiving temperatures of a main body of a power supply and generating, using a model, a temperature of an external battery of the power supply. A second method includes accessing data sets that each include a first voltage across an external first battery of a first power supply, a first current flowing through the first battery, a first charge state of the first battery, and a first temperature of the first battery. The second method includes using the data sets to train a model to receive a second voltage across a second battery of a second power supply, a second current flowing through the second battery, and a second temperature of the second battery, and generate a second charge state of the second battery based on the second voltage, the second current, and the second temperature.

ELECTRODE PLATE FOR SECONDARY BATTERIES AND SECONDARY BATTERY INCLUDING THE SAME

Absstract of: EP4790755A1

An electrode plate (1000) for secondary batteries, the electrode plate including an electrode current collector and an active material layer coated on at least one surface of the electrode current collector. The active material layer includes a concave portion (1210, 2210, 3210, 4210, 5210, 6210-6212, 7210-7213, 8210, 9210) disposed in a pattern on at least a part (14, 15) of the active material layer.

STORAGE BATTERY APPARATUS AND STORAGE BATTERY APPARATUS VEHICLE MOUNTING STRUCTURE

Absstract of: EP4790806A1

A storage battery apparatus (100) that suppress effects on the storage battery apparatus interior caused by the application of a load from outside, while restraining an increase in weight of the storage battery apparatus (100). The storage battery apparatus (100) includes storage cells (111), a first cover (130) disposed below the storage cells (111), a second cover (140) disposed below the first cover (130), and a first fiber-containing resin member (143). The first fiber-containing resin member (143) is in contact with at least one of the first cover or (130) the second cover (140), and is disposed to be superposed with the storage cell (111) as seen in a vertical direction.

APPARATUS AND METHOD FOR INSPECTING STACKING EQUIPMENT

Absstract of: EP4789999A1

0001 An apparatus (100) and method for inspecting stacking equipment (1) are disclosed. An apparatus for inspecting stacking equipment includes a vacuum sensor (140) which is installed on a transfer device of the stacking equipment and configured to detect a vacuum signal representing a degree of adsorption of a sheet (10), a camera (160) configured to capture an image of the stacking equipment, and a processor configured to analyze the vacuum signal input in real time during a process in which the sheet is transferred by the transport device to detect an abnormality in a transfer process of the stacking equipment and may analyze image data captured by the camera based on a time point when the abnormality is detected to analyze a cause of the abnormality.

STORAGE BATTERY APPARATUS

Absstract of: EP4790805A1

0001 A storage battery apparatus (100, 200, 300, 400, 500, 600) that suppresses effects on the storage battery apparatus interior caused by the application of a load from outside, while restraining an increase in weight of the storage battery apparatus. The storage battery apparatus (100, 200, 300, 400, 500, 600) is provided with plural storage cells (111), a first cover (130) disposed below the storage cells (111), and a second cover (140) disposed below the first cover (130). A first resin member (141) is provided that is disposed to extend in a first direction between the first cover (130) and the second cover (140). The first resin member (141) is in contact with the first cover (130), and the first resin member (141) is in contact with the second cover (140).

SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR

Absstract of: EP4790800A1

0001 A secondary battery includes a stack-type electrode assembly in which a plurality of unit batteries are stacked in a first direction, the stack-type electrode assembly having electrode leads at each end thereof in a second direction perpendicular to the first direction, a multifunctional terminal block located at each end of the stack-type electrode assembly, and a laminate sheet surrounding side surfaces of the stack-type electrode assembly. The multifunctional terminal block includes a fused resin layer having a locally increased thickness on a side surface thereof.

COMPOSITION FOR FORMING ELECTRODE, ADDITIVE, AND GELATION INHIBITOR

Absstract of: EP4790762A1

0001 A composition for forming an electrode, including: a compound having a ring structure and an unsaturated bond; a positive electrode active material; a binder; and a solvent, wherein the compound has a dissociable proton in a molecule, a proton dissociation energy of the compound is less than 1504.7 (kJ/mol), and a bond dissociation energy of the compound is less than 452.61 (kJ/mol).

COMPOSITION FOR ELECTRODE FORMATION, ADDITIVE, AND GELATION INHIBITOR

Absstract of: EP4790761A1

0001 A composition for forming an electrode, including: a compound having a ring structure and an unsaturated bond; a positive electrode active material; a binder; and a solvent, wherein the compound has a dissociable proton in a molecule, a proton dissociation energy of the compound is less than 1484.2 (kJ/mol), and a highest occupied molecular orbital (HOMO) of the compound is more than -0.27736(a.u.).

SEPARATOR FOR RECHARGEABLE BATTERY AND RECHARGEABLE BATTERY INCLUDING THE SAME

Absstract of: EP4790781A1

Provided are a separator for a rechargeable battery and a rechargeable battery including the separator. The separator for a rechargeable battery includes a porous substrate and a coating layer located on at least one surface of the porous substrate, wherein the coating layer includes a crosslinked product of a mixture including a first binder and a second binder, and a crosslinking agent; and a filler. The first binder is an aqueous binder, and the second binder is a carboxyalkyl cellulose-based compound or a salt thereof The crosslinking agent includes citric acid, and the citric acid is included in a range 5 parts by weight to 50 parts by weight with respect to 100 parts by weight of the total of the first binder and the second binder.

ENERGY STORAGE SYSTEM WITH INTEGRATED BATTERY DISCONNECT UNIT

Absstract of: EP4790809A1

0001 An energy storage system (100) comprising: a housing (102) configured to accommodate at least one battery module (104); a mounting plate (106) including at least one battery disconnect unit (108a-b) configured to be connected to the at least one battery module; and a sliding mechanism (110a-b) configured to allow the mounting plate to slide into and out of the housing through a mounting opening (112) arranged to receive the mounting plate.

MOLDING DEVICE AND MOLDING METHOD

Absstract of: EP4789842A1

0001 A forming apparatus according to an embodiment of the present disclosure may form an accommodation portion in a pouch film. The forming apparatus may include a die having a forming space and an additional space recessed from an upper surface of the die, the additional space located outside of the forming space and separated from the forming space; a stripper disposed upside of the die and configured to hold the pouch film; a punch configured to apply pressure to a target area of the pouch film to stretch it into the forming space; and a pressure applying unit in communication with the additional space and configured to apply pneumatic pressure to a peripheral area located around the target area of the pouch film through the additional space.

BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Absstract of: EP4790818A1

0001 The technical idea of the present disclosure provides a battery module including: a cell block including a plurality of battery cells; a module case including a bottom plate facing a bottom surface of the cell block, a first side plate facing a first side surface of the cell block, a second side plate facing a second side surface of the cell block, and a top plate facing an upper surface of the cell block; a front frame facing a front surface of the cell block; a rear frame facing a rear surface of the cell block and including a gas discharge hole; and a fire extinguishing cover including an upper cover portion between the upper surface of the cell block and the top plate, and a side cover portion between the rear surface of the cell block and the rear frame.

BATTERY SYSTEM AND METHOD THEREOF AND ELECTRIC VEHICLE

Absstract of: EP4789894A1

The present disclosure refers to a battery system (100), an electric vehicle (2000) including the battery system (100) and a method for the battery system (100).The battery system (100) includes a battery pack (10) with a plurality of battery cells (12) connected to two high voltage lines (14) to form a high voltage, HV, system (16). Each of the high voltage lines (14) includes a main high voltage switch (18) configured to connect the plurality of battery cells (12) to or disconnect the plurality of battery cells (12) from the respective high voltage line (14). The battery system (100) further includes a battery heating system (20) for heating the plurality of battery cells (12) of the battery pack (10) with a heating element (22) and a heating switch (24) connected in series with the heating element (22). The heating element (22) and the heating switch (24) are connected in parallel to one of the high voltage lines (14). The battery system (100) further includes a low voltage, LV, system (26) and a battery management system, BMS, (28) connected to the LV system (26). The BMS (28) includes a signal transmission means (30) configured to transmit a switching signal to the heating switch (24) in a galvanically isolated manner for controlling the heating switch (24) of the battery heating system (20). The battery heating system (20) is configured to receive the switching signal from the signal transmission means (30) of the BMS (28).

METHOD AND APPARATUS FOR CONTROLLING BATTERY CHARGING

Absstract of: EP4790868A1

Provided are a method and apparatus (700) for controlling charging of a battery. The method of controlling charging of a battery (120) includes: measuring (210) a first impedance and a second impedance of the battery (120); calculating (220) an impedance variation based on a difference between the first impedance and the second impedance; setting (230) an end-of-charge voltage based on the impedance variation; and charging (240) the battery based on the end-of-charge voltage.

BATTERY PACK TERMINAL DEFLECTORS

Absstract of: EP4790799A1

0001 The present disclosure provides a battery pack comprising a plurality of battery arrays, each battery array having at least one terminal and a terminal cover associated with the terminal. The terminal cover comprises a mounting portion and a deflector portion. The mounting portion is configured to affix the terminal cover to the battery array such that the terminal cover is substantially aligned with the terminal. The deflector portion is positioned with respect to the terminal such that, in an event of fluid egress from a battery array via a terminal of the battery array, the fluid egress is directed away from predefined locations of the other respective battery arrays of the battery pack. The terminal cover (100) may include a sidewall (125) and a top portion (115).

Processing electric battery for recycling

Absstract of: GB2703792A

An apparatus 100 for processing an electric battery 10 for recycling, comprising a tank 102 configured to contain a liquid; a support surface 104 configured to support a battery within the tank, wherein the support surface is located within the tank such that the battery is immersed in the liquid in the tank in use; at least one cutting blade 106 configured to be oriented within the tank so as to cut through the battery along a substantially linear path in each of a plurality of cutting directions, wherein each of the cutting directions is oriented at an angle relative to the other cutting directions. The apparatus may comprise a plurality of cutting blades configured to be oriented within the tank so as to cut through the battery along the plurality of cutting directions. The blades may be spaced apart from one another, located in different regions of the tank, and configured to be oriented within the tank to cut in substantially parallel planes along a same one of the cutting directions. The blades may be independently operable. Also disclosed is a method (Fig. 2, 200) of processing an electric battery for recycling involving the apparatus. Figure 1

Electric water heating system

Absstract of: GB2703835A

An electric water heating system 10 comprises a fluid-cooled battery pack (12, Fig. 1) comprising battery cells (16, Fig. 2) electrically coupled to an electrical water heating device 14. A battery cooling duct 18 is thermally coupled to the battery cells. Power electronics components (20, Fig. 1) located above the fluid-cooled battery pack are electrically coupled to the battery cells and are cooled by a power component cooler 22 with a power cooling duct 24 thermally coupled to the power electronics components. The power cooling duct is fluidly coupled to the battery cooling duct and a heat exchange fluid flows through both the battery cooling duct and the power cooling duct. Cooling duct connectors 34 may define a manifold 40. The battery pack may comprise battery modules 28 with a cell housing (30, Fig. 1) and a module duct 32 defining part of the battery cooling duct. The power electronics components may be attached to a cooling plate (42, Fig. 1) thermally coupled to the power cooling duct. A heat exchanger 56 may be fluidly coupled to a power cooling duct outlet 26b and a water inlet 54a of the water heating device. Fig. 6

BATTERY ASSEMBLY

Absstract of: EP4790816A2

0001 The present disclosure relates to a battery assembly. The battery assembly may comprise: a plurality of battery cells arranged along a stacking direction; and a housing case containing the plurality of battery cells and including at least one end plate; wherein the end plate has a length dimension that extends parallel to the stacking direction and forms a first side of the housing case. The at least one end plate has one or more first type of venting holes penetrating it. The battery assembly possesses improved thermal stability, extended battery life and improved structural stability.

A METHOD OF CALENDERING AN ELECTRODE FILM

Absstract of: EP4789836A2

Devices, systems and methods used to accurately and/or precisely calender materials and films (e.g., dry electrode materials and/or dry electrode films), and systems thereof, are described. These devices, systems and methods measure thicknesses of films on the calender rollers and/or adjust bulging of calender rollers. Such disclosures may enable active control and/or adjustment of the calendering system in order to more accurately and/or precisely control and/or adjust the thicknesses, densities and/or loadings of films.

BUSBAR FRAME ASSEMBLY STRUCTURE AND BATTERY MODULE EMPLOYING SAME, AND BATTERY PACK AND VEHICLE INCLUDING BATTERY MODULE

Absstract of: EP4790821A1

The present disclosure provides a busbar frame assembly structure including a busbar frame, a hinge coupler connected to a battery module case and formed in an upper and lower multi-stage structure, and a hinge pin coupled to an upper end portion of the busbar frame.

THERMAL MANAGEMENT APPARATUS AND BATTERY PACK

Absstract of: EP4790794A1

0001 Provided are a thermal management device and a battery pack. The thermal management device includes one or more support members and one or more heating films. Each support member is configured to cool a corresponding battery cell row. Each heating film is configured to heat a corresponding battery cell row. Each heating film is connected to a corresponding support member. The heating film is shaped to adapt to the support member so as to ensure a stable contact between the heating film and the support member.

METHOD FOR PRODUCING AN ELECTROCHEMICAL ENERGY STORAGE ELEMENT

Absstract of: EP4790774A1

Es wird ein Verfahren zur Herstellung eines elektrochemischen Energiespeicherelements (100) mit einem wickelförmigen Elektroden-Separator-Verbund (104) und einem Gehäuse (101, 102) vorgeschlagen. Die bandförmigen Elektroden des Elektroden-Separator-Verbunds umfassen mindestens eine Anode und mindestens eine Kathode. Die Anode und/oder die Kathode umfassen jeweils einen Stromkollektor, der einen streifenförmigen Hauptbereich aufweist, der mit einer Schicht aus negativem bzw. positivem Elektrodenmaterial beladen ist, sowie einen freien Randstreifen (106b, 109b), der nicht mit dem Elektrodenmaterial beladen ist. Die Anode und/oder die Kathode sind innerhalb des Elektroden-Separator-Verbunds (104) derart angeordnet, dass der freie Randstreifen (106b, 109b) des oder der Stromkollektoren aus der jeweiligen Stirnseite des Elektroden-Separator-Verbunds unter Bildung eines Überstands austritt. Auf mindestens einer der Stirnseiten (104a, 104b) des Elektroden-Separator-Verbunds wird ein Kontaktblechteil (112, 122) aufgesetzt und unter Deformation des jeweiligen Überstands des Stromkollektors an der Stirnseite angepresst und mit dem Elektroden-Separator-Verbund (104) verschweißt. Das Verfahren ist weiter dadurch gekennzeichnet, dass der Elektroden-Separator-Verbund (104) mit dem mindestens einen aufgesetzten Kontaktblechteil (112, 122) während des Anpressens und Verschweißens der Kontaktblechteile axial fixiert wird, und dass die axiale Fixierung durch radiales Einspannen am Umf

SOC/SOH ESTIMATION OF LMFP CELL

Absstract of: EP4790760A1

Systems and methods are disclosed for estimating state parameters of lithium manganese iron phosphate (LMFP) battery cells with improved accuracy and robustness. Per-cell estimation of state of charge (SOC) and state of health (SOH) is performed using electrical measurements including voltage, current, and temperature. In example implementations, shifts in characteristic voltage transition regions associated with manganese- and iron-based redox reactions are monitored to infer degradation during normal operation. Mechanical swelling force of the battery cell is measured using one or more pressure sensors, providing a physical indicator correlated with SOC and long-term lithium inventory loss, particularly in voltage-flat operating regions. Direct current internal resistance values obtained from controlled current pulses may further enhance estimation accuracy. These complementary estimation techniques may be implemented individually or in combination within a battery management system to improve diagnostics, adaptive control, and lifecycle management of LMFP battery cells in electrified vehicle and energy storage applications.

MULTI-LAYER BATTERY ELECTRODES

Absstract of: EP4790756A1

0001 The present invention concerns a multilayer composite battery electrode comprising active electrode materials obtained by direct recycling of battery materials from batteries comprising coated metal foil electrodes which are common in, e.g., lithium ion batteries or other alkali metal batteries. The battery materials are either obtained as production scrap from electrode and/or cell production, or obtained from end-of-life batteries (EoL batteries) by sorting and healing processes as they are described in literature.

Lithium cell-based battery pack with enhanced safety and longevity features

Nº publicación: GB2703743A 12/08/2026

Applicant:

VAJIRA MALINDA DHANAPALA [GB]
KENNETH INDRAJITH HETTIARACHCHI [LK]
KAPILA SHANTHA MALAWANA [LK]
Vajira Malinda Dhanapala
Kenneth Indrajith Hettiarachchi
Kapila Shantha Malawana