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BATTERY

Resumen de: US20260074374A1

The disclosure provides a battery, including a first electrode plate and a separator, the first electrode plate including a first current collector and a first coating located on a surface of the first current collector. The first coating is connected to the separator, and a surface of the first coating is provided with a recess, and an air permeability S of the separator and a width L of the recess satisfy: 5000 μm·sec/100 cc≤S×L≤75,000 μm·sec/100 cc, where S is in sec/100 cc and L is in μm. The disclosure can improve the rate capability of the battery while reducing the voltage drop of the battery and reducing the risk of short circuit.

BATTERY CONTROL DEVICE AND SHORT-CIRCUIT DETECTION METHOD THEREOF

Resumen de: US20260074539A1

A battery control device includes: a first battery control unit configured to control an electrical connection between an external load and a first battery module, the first battery control unit including: a first switch connected between a positive terminal for the first battery module and the external load; a second switch connected between a negative terminal for the first battery module and the external load; and a first controller configured to control an open/closed state of the first and second switches. The first controller may be configured to detect a short-circuit between the external load and the first battery control unit, according to a voltage between both ends of the first switch detected with the first switch open and the second switch closed.

Pouch Type Secondary Battery

Resumen de: US20260074362A1

A secondary battery includes an electrode assembly, a pouch type case including an accommodation portion for accommodating the electrode assembly and a sealing portion for sealing the accommodation portion, an electrode lead connected to the electrode assembly and protruding to the outside of the pouch type case via the sealing portion, a lead film disposed between the electrode lead and the pouch type case, and a gas guide portion disposed between the electrode lead and the lead film. The gas guide portion includes a first layer having a modified polyolefin resin in contact with the electrode lead, and a second layer disposed on the first layer.

SPACER, METHOD OF MANUFACTURING THE SAME, AND BATTERY MODULE INCLUDING THE SPACER

Resumen de: US20260074353A1

Examples of the disclosure include a spacer including a polymer matrix, and an endothermic flame retardant dispersed in the polymer matrix. The polymer matrix includes a fiberized polymer, and the endothermic flame retardant is included in a content in a range of about 60 wt % to about 98 wt % with respect to a total weight of the spacer.

SEPARATORS FOR VRLA BATTERIES AND METHODS RELATING THERETO

Resumen de: US20260074368A1

Improved battery separators, batteries, and systems, as well as methods relating thereto are disclosed herein for use in various lead acid batteries such as valve-regulated lead acid (VRLA) batteries that include one or more AGM layers. The improved battery separators described herein may provide a battery system with an advantage of a significantly decreased acid filling time and a significantly increased acid filling speed. Various improved batteries, methods and systems are described herein using such improved battery separators that increase acid filling speed and decrease acid filling time for a VRLA battery.

METHOD OF MANUFACTURING POWER STORAGE DEVICE

Resumen de: US20260072091A1

A method of manufacturing a power storage device including plural power storage cells includes a wire forming process of forming a wire of the power storage device such that adjacent power storage cells in the power storage device are connected to a common wire, and a resistance measuring process of measuring an electrical resistance of at least a part of the formed wire. In the resistance measurement process, the voltage of the open circuit including the second power storage cell and the common wire portion is measured while a current is supplied to the closed circuit including the first power storage cell and the common wire portion with respect to the common wire portion of the first power storage cell and the second power storage cell adjacent to each other in the power storage device, and the electrical resistance of the common wire portion is acquired using the measured voltage.

BATTERY AGING ASSESSMENT METHOD BASED ON MULTI-SOURCE AND MULTI-SCALE HIGH-DIMENSIONAL STATE SPACE MODELING

Resumen de: US20260072094A1

Disclosed is a battery aging assessment method based on multi-source and multi-scale high-dimensional state space modeling in the field of energy storage in renewable power systems. The method includes: acquiring a time series of each discharge process within a preset number of discharge cycles of a sample battery; determining a first state transition path and a second state transition path based on discharge parameters corresponding to the time series; establishing a benchmark working-state transition path; calculating multiple sample distances between the second state transition path and the benchmark working-state transition path; training a battery aging assessment model using the sample distances as input and corresponding target state-of-health values as output; calculating a target distance between a state transition path of a to-be-predicted target battery and the benchmark working-state transition path.

BATTERY STATE PREDICTION APPARATUS AND OPERATING METHOD THEREOF

Resumen de: US20260072087A1

Discussed is a state prediction apparatus that may include a data managing unit configured to extract first battery data including battery data obtained for a first predetermined time after completion of charging of a battery and second battery data including battery data obtained for a second predetermined time after entering of discharging of the battery and a controller configured to obtain first state data for predicting a state of the battery by applying the first battery data to a first deep learning model, obtain second state data for predicting the state of the battery by applying the second battery data to a second deep learning model, and predict the state of the battery based on the first state data and the second state data.

SECONDARY BATTERY TESTING DEVICE AND PENETRATING PIN ALIGNMENT MECHANISM FOR SHORT-CIRCUIT TEST OF SECONDARY BATTERY

Resumen de: US20260072099A1

A secondary battery testing device including: a support bulkhead configured to contact one side surface of a battery cell for an internal short-circuit test; a penetration bulkhead opposite to the support bulkhead and configured to contact an opposite side surface of the battery cell, the penetration bulkhead having an access opening extending therethrough toward the support bulkhead; a bulkhead connector connecting the support bulkhead and the penetration bulkhead to each other and maintaining a gap between the support bulkhead and the penetration bulkhead; an alignment mechanism mounted on the penetration bulkhead and having a nail guide corresponding to the access opening and having a guide passage; and a nail configured to penetrate the battery cell through the guide passage to cause an electrical short-circuit of the battery cell.

Method for Manufacturing Electrode Assembly and Electrode Assembly

Resumen de: US20260074268A1

A method for manufacturing an electrode assembly includes preparing a cell stack and forming a bonding part. In the preparing, a first electrode and a second electrode having a width greater than that of the first electrode are alternately stacked with a separator therebetween. In the forming, a bonding part is folded toward the cell stack by bonding the plurality of separators protruding outward further than the first electrode and the second electrode to each other. An electrode assembly is also provided.

PRESSING APPARATUS FOR SECONDARY BATTERY

Resumen de: US20260074269A1

Provided is a pressing apparatus for a secondary battery for improving the efficiency of a secondary battery manufacturing process and the performance or structural stability of the secondary battery. The pressing apparatus for the secondary battery includes a case part for arranging a plurality of secondary batteries along one direction, an end plate configured to be movable inside the case part in the one direction and apply pressure to the secondary batteries in the one direction, a pulley part connected to one side of the end plate, and a wire part configured to be wound around the pulley part and to transmit power in the one direction to the pulley part to move the end plate along the one direction.

DOWN-PRESSING MECHANISM, PRESSURIZING APPARATUS, AND BATTERY PRODUCTION DEVICE

Resumen de: US20260074271A1

This application discloses a down-pressing mechanism, a pressurizing apparatus, and a battery production device. The down-pressing mechanism includes a pitch adjustment unit and multiple down-pressing members, where the pitch adjustment unit includes a base plate and multiple pitch adjustment members arranged sequentially along a first direction on the base plate. At least one pitch adjustment member is capable of moving along the first direction. Each down-pressing member is connected to a corresponding pitch adjustment member. The down-pressing members are configured to press a product.

SECONDARY BATTERY PRESSING METHOD AND PRESSING DEVICE SUPPORTING SAME

Resumen de: US20260074261A1

A pressing apparatus according to embodiments of the present disclosure may include a driver, a cylinder configured to move in response to driving of the driver, and a regulator configured to control an internal pressure of the cylinder, wherein the cylinder moves upwardly by a first distance in response to driving of the driver, and a portion of the cylinder is configured to move upwardly by a second distance in response to the internal pressure of the cylinder controlled by the regulator to provide a pressing force to at least a portion of a secondary battery.

ASSEMBLY FOR PRESSURIZATION OF ALL-SOLID-STATE BATTERIES

Resumen de: US20260074272A1

Disclosed is an assembly comprising at least one cell comprising an exterior surface; a bag with an interior surface and an exterior surface, wherein the bag surrounds the at least one cell; an inert gas filling a space between the interior surface of the bag and the exterior surface of the at least one cell; and a casing surrounding the bag, wherein the bag exerts a compressive pressure, via the inert gas, on the at least one cell.

SECONDARY BATTERY

Resumen de: US20260074274A1

A secondary battery includes: an electrode assembly; a case accommodating the electrode assembly; and a cap assembly coupled to the case to seal the case, and the case includes a bottom portion, long side portions bent and extended from the bottom portion, a first short side portion bent and extended from the bottom portion, and second short side portions bent and extended from the long side portions, and the first short side portion and the second short side portions are connected to one another to define a short side portion.

UNIVERSAL WASHER, FASTENING APPARATUS, AND BATTERY PACK

Resumen de: US20260074348A1

Disclosed are a universal washer, a fastening apparatus, and a battery pack. The universal washer may be interposed between a fastening bolt and a fastening nut for fixing one or more connection members to be in contact with a lower surface of the one or more connection members and may be formed with a through hole through which a shaft at a lower part of a head of the fastening bolt passes. A concave curved portion may be formed in a peripheral portion of the through hole in a direction of travel of the shaft of the fastening bolt, and a flat rim portion may be formed on a rim of the universal washer.

CONFIGURABLE BATTERY BACKPLANE AND MODULES AND METHODS OF OPERATING THE SAME

Resumen de: US20260074350A1

An energy storage/battery system is disclosed. The system can include a multi-voltage configurable module (MVCM) and a multi-voltage configurable backplane (MVCB) that form the system. The system can be dynamically controlled to bring MVCMs on or offline to deliver power and capacity to a device. The MVCM can include a main housing with first cavities extending through the main housing to receive battery cells and second cavities in which printed circuit boards can be positioned to support the battery cells. The MVCB can include separable main housing sections.

BATTERY PACK

Resumen de: US20260074347A1

A battery pack according to the present disclosure includes a battery case, a battery module, a first fastening member, a second fastening member, and a thermal conduction member. The battery case includes an upper case and a lower case. The battery module is stored in the battery case. The battery module includes a plurality of battery cells that is stacked in the battery module. The first fastening member is configured to fasten the top plate section of the upper case and the battery module. The second fastening member is configured to fasten the bottom plate section of the lower case and the battery module. The thermal conduction member is provided in contact with the upper surface of the battery module and the inner surface of the top plate section, between the battery module and the top plate section.

RECHARGEABLE BATTERY

Resumen de: US20260074382A1

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case that is connected to the first electrode and accommodates the electrode assembly, and includes an opening; a cap plate that is coupled to the case to cover an outer area of the opening and includes a through-hole exposing a central area of the opening; a terminal plate that is connected to the second electrode and is insulation-bonded to the cap plate so as to cover the through-hole; and a thermal-fusion layer that is positioned between the cap plate and the terminal plate and insulation-bonds the cap plate and the terminal plate, and the cap plate includes a plating layer that is directly bonded to the thermal-fusion layer.

BATTERY MODULE AND VEHICLE

Resumen de: US20260074535A1

According to an embodiment, a battery module includes a cell group in which a first cell and a second cell are connected in parallel, a first circuit breaker mechanism configured to disconnect connection between the first cell and the second cell when a temperature of the first cell is equal to or higher than a first temperature, and a connection mechanism configured to connect the first cell to a discharge circuit when the temperature of the first cell is equal to or higher than a second temperature higher than the first temperature.

Mehrschichtige Anode für eine Festkörperbatterie, deren Herstellung und Verwendung sowie die Festkörperbatterie, enthaltend die mehrschichtige Anode

Resumen de: DE102024002921A1

Die Erfindung betrifft eine mehrschichtige Anode (40) für eine Festkörperbatterie, die auf einen Anodenstromkollektor (50) aufgebracht ist, umfassend oder bestehend aus einer ersten Schicht (42) und einer zweiten Schicht (44), wobei die erste Schicht (42) ein oder mehrere Metallelemente, ausgewählt aus der Gruppe, bestehend aus Silber (Ag), Magnesium (Mg), Gold (Au), Palladium (Pd), Aluminium (Al), Wismut (Bi), Indium (In), Zinn (Sn), Gallium (Ga), Platin (Pt), Cadmium (Cd), Germanium (Ge), Selen (Se), Antimon (Sb), Arsen (As) und/oder Titan (Ti) aufweist und die zweite Schicht (44) aus einer schützenden Oxidschicht besteht, die ein oder mehrere Oxide von Silizium (Si) und/oder obigen Elementen aufweist oder hieraus besteht. Die Erfindung zeichnet sich dadurch aus, dass die erfindungsgemäß ultradünne mehrschichtige Anode die Bereitstellung von Festkörperbatterien mit hoher Energiedichte ermöglicht, die eine Verbesserung der Reversibilität der Lithium-Plating/-Stripping-Prozesses beim Laden/Entladen und eine Verbesserung der Zyklenlebensdauer der Festkörperbatterie ermöglicht.

Natrium-Ionen-Akkumulator und Verfahren zur Fertigung eines Natrium-Ionen-Akkumulators

Resumen de: DE102024208665A1

Die Erfindung betrifft einen Natrium-Ionen-Akkumulator (2) aufweisend eine Akkumulator-Zelle (4), in der zumindest eine positive Elektrode (10) angeordnet ist, wobei die zumindest eine positive Elektrode (10) ein erstes Elektrodenmaterial (22) sowie ein zweites Elektrodenmaterial (24) aufweist, wobei das erste Elektrodenmaterial (22) ein Berliner-Blau-Analoga-Material aufweist und wobei das zweite Elektrodenmaterial (24) ein polyanionisches Material aufweist

Energiespeicher für ein Kraftfahrzeug, Kraftfahrzeug und Verfahren zum Austauschen einer Rundzelle eines Energiespeichers

Resumen de: DE102024126307A1

Die Erfindung betrifft einen Energiespeicher (10) für ein Kraftfahrzeug, aufweisend einen Aufnahmeraum (12), mehrere im Aufnahmeraum (12) aufgenommene Rundzellen (14; 14', 14a, 14b, 14"), und eine Halteeinrichtung (18) zum Halten der Rundzellen (14; 14', 14a, 14b, 14"), wobei die Halteeinrichtung (18) für jede Rundzelle (14; 14', 14a, 14b, 14") ein Halteelement (18a) umfasst, das eine Öffnung (20) aufweist, in die die jeweilige Rundzelle (14; 14', 14a, 14b, 14") eingesteckt ist. Dabei umfasst ein jeweiliges Halteelement (18a) eine zylindrische Wandung (22), die in radialer Richtung einen Innenraum umschließt und die in radialer Richtung einen Abstand (d) von der in der Öffnung (20) aufgenommenen Rundzelle (14; 14', 14a, 14b, 14") aufweist, und mehrere innenseitig an der Wandung (22) und in Umfangrichtung (U) verteilt angeordnete und radial nach innen ragende Längsstege (30).

Natrium-Ionen-Akkumulator und Verfahren zur Fertigung eines Natrium-Ionen-Akkumulators

Resumen de: DE102024208667A1

Die Erfindung betrifft einen Natrium-Ionen-Akkumulator (2) aufweisend eine Akkumulator-Zelle (4), in der zumindest eine positive Elektrode (10) angeordnet ist, wobei die zumindest eine positive Elektrode (10) ein erstes Elektrodenmaterial (22) sowie ein zweites Elektrodenmaterial (24) aufweist, wobei das erste Elektrodenmaterial (22) ein Schichtmetalloxid-Material aufweist und wobei das zweite Elektrodenmaterial (24) ein Berliner-Blau-Analoga-Material aufweist

Thermomanagementmodul

Nº publicación: DE102024125701A1 12/03/2026

Solicitante:

MAHLE INT GMBH [DE]
MAHLE International GmbH