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1089
results.
Updated on
22/08/2026 [07:48:00]
Results 1025 to 1050 of 1089
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
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.
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.
Absstract of: GB2703743A
A battery pack comprising; lithium cells within a sealed steel box, nitrogen gas surrounding the cells to prevent fire and corrosion. The battery pack may comprise heating elements to maintain the temperature between 15 and 25 ℃. The battery pack may comprise coolers powered by super capacitators which may cool the battery if the temperature exceeds 25 ℃. The battery pack may comprise a control circuit to monitor the temperature and isolate the cells when set parameters are exceeded. The battery pack may also comprise a separate control circuit to monitor ambient temperature and operate the heater/cooler. An electronic control circuit may use the super capacitators as an emergency power source to operate the battery cooler. An electronic control circuit may include a failsafe mechanism to isolate the battery cells and activate the cooler if the temperature exceeds 25 ℃. The cooling mechanism may operate independently. Fig 1
Absstract of: EP4790814A1
The present disclosure provides a cover element for a battery pack. The cover element is generally planar and formed from a silicate mineral. The cover element is configured to be sealed to a periphery of the battery pack and attached to a top surface of arrays which form the battery pack. The cover element includes cover apertures configured to be aligned with vent apertures in the top surface of the arrays and to form a seal around the vent apertures, providing a fluid pathway from the cover apertures. The cover element may be formed of mica and include terminal apertures aligned with array terminals. A battery pack (250) incorporating the cover element and a vehicle containing such a battery pack are also disclosed.
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.
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.
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.
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.
Absstract of: EP4790754A1
A composite negative electrode active material for a rechargeable lithium battery includes the silicon-based negative electrode active material and a conductive material entangled on the surface of the Si-based negative electrode active material. The silicon-based negative electrode active material includes silicon nanoparticles and amorphous carbon coating layers on the surfaces of the silicon nanoparticles. The silicon-based negative electrode active material is porous and has a sphericity of 0.9 to 1.0. The pores include mesopores, and the ratio of a mesopore volume to the total pore volume of the Si-based negative electrode active material is 30% or more and less than 70%.
Absstract of: EP4790374A1
0001 An optical strain sensor for use in a battery system comprising a planar optical waveguide having a planar geometry comprising a Bragg grating located in a core of the planar optical waveguide. The core extends longitudinally along a first direction of the planar optical waveguide and defines an optical propagation direction of the planar optical waveguide. A battery cell comprising the optical strain sensor. An inter-cell spacer comprising the optical strain sensor. A battery system comprising a plurality of the battery cells and/or a plurality of the inter-cell spacers.
Absstract of: EP4790177A1
The present invention refers to a nonwoven mat for thermal insulation and protection from fire, a method for the preparation of said nonwoven mat, a partition member, a battery housing and a battery pack; and to the use of the nonwoven mat, the partition member and the battery housing for thermal insulation and protection from fire.
Absstract of: EP4789997A1
0001 Zur Qualitätsverbesserung bei geringerem apparativem Aufwand bei einer Stapelbildung aus Wiederholkomponenten im Rahmen der Herstellung von elektrischen Energiequellen schafft die Erfindung eine (Mess-)Anordnung (14) mit einem Messaufnehmer (32, 32b) für eine Messeinrichtung (34) zum Messen einer Position einer Wiederholkomponente (18) für die Erzeugung von Zellen einer elektrischen Energiequelle, wobei die Anordnung (14) einen flächig ausgebildeten Niederhalter (28) zum Niederhalten der Wiederholkomponente (18) aufweist, in dem der Messaufnehmer (32, 32b) angeordnet ist, zum Senden eines Sendesignals (36) auf die Wiederholkomponente (18) und zum Empfangen eines Antwortsignals (38) ausgebildet ist, und einen Schnittstellenbereich (46) zur Verbindung mit einer außerhalb des Niederhalters (28) ausgebildeten Sende- und/oder Empfangseinheit (48, 49) und/oder Auswerteeinheit (50) der Messeinrichtung (34) aufweist.
Absstract of: GB2703724A
A method of recovering lithium from used lithium-ion batteries by combining a mixture comprising cathode active material and anode material with sucrose, roast-reduction of the combined sucrose-electrode mixture and then leaching lithium from the roasted composition. The roast-reduction can be performed by heating at a rate of 50 degrees C/min or less to a temperature in the range 500-650 degrees C where it is held for up to 60 minutes in an inert gas or an anaerobic environment. The sucrose-electrode mixture can comprise 5-25 % by weight of sucrose. Leaching of the lithium can be done using water. The anode can comprise graphite and the cathode active material can be Li-Co oxide, Li-Ni-Mn-Co oxide, Li-Co-Ni-Al oxide, Li-Ni dioxide, Li-Mn oxide and/or Li-Fe phosphate. No Fig
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).
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.
Absstract of: EP4790439A1
According to an embodiment, a rechargeable battery assembly is provided, the battery assembly comprising: a battery module (110) comprising a plurality of cell units (111) connected in series between a first terminal (Na) and a second terminal (Nb); a current shaping assembly (120, 140) selectively couplable to a current path through the battery module (110); and a measurement subsystem (130) arranged to carry out a measurement procedure in a course of operation of the rechargeable battery assembly (100), the measurement procedure comprising the measurement subsystem (130) arranged to: couple the current shaping assembly (120, 140) to said current path and operate the current shaping assembly (120, 140) to vary an electric current in said current path over a measurement period according to a switching sequence defined by a multi-frequency pseudo-random pulse sequence, PRPS, that represents a plurality of frequency components at a predefined frequency resolution within a predefined frequency range and that defines switching between different current levels as a function of time, obtain measurement data that comprises a respective indication of a respective cell-unit-specific voltage across each cell unit (111-k) of the plurality of cell units (111) as a function of time and an indication of the electric current in said current path as a function of time over the measurement period, derive a respective cell-unit-specific impedance of each cell unit (111-k)
Absstract of: EP4790807A1
The invention relates to a cell connector (10A, 10B, 10C) for electrically connecting eight cylindrical cells (22) for an electrical energy storage device. The cell connector (10A, 10B, 10C) comprises exactly four positive contact portions (12a, 12b, 12c, 12d), each configured to electrically contact a positive terminal (22a) of one of the eight cylindrical cells (22). The cell connector (10A, 10B, 10C) further comprises exactly four negative contact portions (14a, 14b, 14c, 14d), each configured to electrically contact a negative terminal (22b) of one of the eight cylindrical cells (22). The cell connector (10A, 10B, 10C) further comprises a connecting portion (16), via which the four positive contact portions (12a, 12b, 12c, 12d) and the four negative contact portions (14a, 14b, 14c, 14d) are physically and electrically connected to each other.
Absstract of: EP4790292A1
0001 A coolant inlet port (100) for an electrical energy storage pack enclosure (102), the coolant inlet port comprises: an opening (113) for receiving a coolant pipe (104), and a breather unit (108) arranged in the opening, the breather unit comprises a membrane (110) configured to be arranged at least partly around the coolant pipe in the opening, the membrane is gas permeable and liquid impermeable, and a cover structure (112, 212) arranged to at least partly cover the membrane and part of the coolant pipe at the opening to create a temporary gas trap around the membrane and the cooling pipe.
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.
Absstract of: EP4790775A1
0001 A method of manufacturing an electrode assembly for secondary batteries capable of simultaneously improving the accuracy and speed of a stacking process and an electrode assembly manufactured using the method. The method includes preparing a current collection set, cutting the current collection set into a predetermined pattern; and stacking the current collection set that is cut.
Absstract of: EP4790758A1
0001 A negative electrode for a rechargeable lithium battery comprises a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer includes a first negative electrode active material, a second negative electrode active material, a binder, and a conductive material. The first negative electrode active material is in the form of particles that each comprise silicon nanoparticles aggregated together and an amorphous carbon coating layer surrounding the silicon nanoparticles. The particles of the first negative electrode active material have a sphericity (S) of about 0.9 to about 1.0. The second negative electrode active material comprises crystalline carbon. The negative electrode active material layer has a mixture density of more than about 1.6 g/cc to not more than about 1.7 g/cc.
Nº publicación: GB2703835A 12/08/2026
Applicant:
LUTHMORE LTD [GB]
Luthmore Ltd
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
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