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NONAQUEOUS ELECTROLYTE SOLUTION, NONAQUEOUS ELECTROLYTE BATTERY, AND COMPOUND

Resumen de: EP4648165A1

The present disclosure provides a nonaqueous electrolyte solution containing at least one selected from the group consisting of a compound represented by the following general formula (1) and a compound represented by the following general formula (2):and a nonaqueous electrolyte solution battery including at least a positive electrode, a negative electrode, a separator, and the nonaqueous electrolyte solution. In the general formula (1), R₁ to R₃ represent groups which may be the same or different and at least one of R₁ to R₃ represents a -SO₂F group. In the general formula (2), R₄ to R₆ represent groups which may be the same or different and at least one of R₄ to R₆ represents a -SO₂F group.

LEADED SLAG CLEANING AND RECOVERY OF USEFUL METALS AND REUSE OF SLAG

Resumen de: MX2025008919A

A system and method for recovering heavy metals from nonhazardous scrap lead acid battery slag using pyrometallurgical and hydrometallurgical process to clean slag for commercial use as an environmentally friendly substitute solid filler in product. Process recovers previously nonhazardous landfilled lead and tin for value economically for the business unit and repurposes the businesses major solid waste stream. Methods iteratively remove tin, lead, antimony, arsenic from slag to be used in commercial materials as well as concentrate lead and tin in a fume to recover lead for recycled production and produce commercial grade tin.

SEPARATOR FOR LEAD STORAGE BATTERIES, AND LEAD STORAGE BATTERY USING SAME

Resumen de: EP4648206A1

Provided is a separator for batteries in which an electrolytic solution contains water. The separator: is characterized by comprising a substrate and a layer laminated on at least one surface of the substrate; and is characterized in that the layer contains inorganic particles, and when Y (ml/100 g) represents the DOA oil absorption of the inorganic particles and X (µm) represents the median diameter of the inorganic particles, Y≤2.5X+200 is satisfied.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4648186A1

A battery cell (20), a battery (1100), and an electrical apparatus are disclosed in the present application. The battery cell (20) includes a shell (100) and an end cover (200), where the shell (100) has an opening; the end cover (200) is welded at the opening to form a welding structure (300), the welding structure (300) includes a plurality of first welding seams (310), the first welding seams (310) are arranged corresponding to edge portions (210) of the end cover (200), the plurality of first welding seams (310) are connected to form a closed annular structure to be arranged surrounding the end cover (200); where two adjacent first welding seams (310) are connected at a corresponding corner (220) of the end cover (200) in a laminated manner. The welding structure (300) of the battery cell (20) at the corner (220) of the end cover (200) has a good strength, the welding structure (300) between the shell (100) and the end cover (200) has a good strength, the welding quality is high, and the structural reliability of the battery cell (20) is good.

TAMPER-RESISTANT BATTERY PACK

Resumen de: EP4648194A1

A tamper-resistant battery pack, comprising: an edge beam (1); a cover body (2); and a bottom plate (3). A maintenance cover (4) is assembled on the bottom plate (3); first connecting structures (5) used for preventing the cover body (2) from being disassembled, a second connecting structure (6) used for preventing the bottom plate (3) from being disassembled, and a third connecting structure (7) used for preventing the maintenance cover (4) from being disassembled are provided on the inner side of the edge beam (1); the third connecting structure (7) is provided with an unlocking part (73); when the unlocking part (73) is not operated for unlocking, the maintenance cover (4) is locked by means of the third connecting structure (7), the cover body (2) is locked by means of the first connecting structures (5), and the bottom plate (3) is locked by means of the second connecting structure (6); and when the unlocking part (73) is operated for unlocking, the maintenance cover (4) is unlocked, so that the second connecting structure (6) in the edge beam (1) is operated to unlock the bottom plate (3), and the first connecting structures (5) in the edge beam (1) are operated to unlock the cover body (2).

BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4648199A1

A battery pack according to an aspect of the present disclosure includes: a plurality of battery cells; and a pack housing having an accommodation space configured to accommodate the plurality of battery cells, wherein the pack housing comprises: a side frame constituting a side wall of the accommodation space, having a gas passage therein, and having at least one window, which communicates with the gas passage, provided on a surface adjacent to the accommodation space; and a base frame constituting the bottom of the accommodation space and having at least one pocket configured to collect particles emitted from the plurality battery cells accommodated in the accommodation space.

Smart cooling system for battery energy storage system

Resumen de: GB2640975A

smart cooling of a battery energy storage system (BESS). An example smart cooling controller (675) may include a weather forecaster (655), an energy cost forecaster (665), a state of charge forecaster (670), and a battery usage forecaster (660). The example smart cooling controller (675) may be configured to determine one or more times to cool the battery energy storage system based on a weather forecast, an energy cost forecast, a state of charge, and a battery usage forecast, and to control a cooling system to cool the battery energy storage system at the one or more times.

ELECTRIC-SHOCK PREVENTION REPAIR STRUCTURE AND BATTERY PACK

Resumen de: EP4648231A1

This invention provides an electric shock-free maintenance structure and a battery pack, including: a structure body provided with a low-voltage control circuit, a main circuit, and a relay; a maintenance cover installed on the structure body; and a switch connected in series with the low-voltage control circuit. The switch includes a plug and a socket, the plug and the socket are respectively equipped on the structure body and on the maintenance cover. When the plug and the socket are electrically and mechanically connected, the low-voltage control circuit is powered on, and the relay is closed and energized to activate the main circuit. When the plug and socket are electrically or mechanically disconnected, the low-voltage control circuit is cut off, and the relay is open and de-energized to cut off the main circuit.

A TRANSPORT AND STORAGE UNIT FOR CHARGE CYCLING OF BATTERY MODULES

Resumen de: EP4648174A1

A transport and storage unit (1) for accommodating two or more battery modules (9, 10, 11, 12, 13) during transport and/or storage is disclosed. Two or more mounting interfaces (8), are each configured to receive and establish electrical connection to a battery module (9, 10, 11, 12, 13). A charge cycling system is electrically connected to the two or more mounting interfaces (8), and a controller is configured to control the charge cycling system so as to periodically charge and discharge battery modules (9, 10, 11, 12, 13) being mounted in the two or more mounting interfaces (8). At least one transport interface (3, 4) is provided for connecting the transport and storage unit (1) to a transport device, so as to allow movement of the transport and storage unit (1) by means of the transport device.Furthermore a method for charge cycling two or more battery modules using such a transport and storage unit (1).

BATTERY DIAGNOSIS APPARATUS, BATTERY PACK, ELECTRIC VEHICLE AND BATTERY DIAGNOSIS METHOD

Resumen de: EP4647790A1

There are provided a battery diagnosis apparatus, a battery pack, an electric vehicle and a battery diagnosis method. The battery diagnosis apparatus includes a control circuit configured to generate a Q-V profile, a normalized Q-V profile and a Q-dV/dQ profile based on capacity-voltage relationship data of a battery cell acquired by a data acquisition unit. The control circuit identifies a cut-off reference point located in a reference capacity range from the Q-dV/dQ profile. The control circuit determines a profile fitting factor associated with a Q-V profile of interest that is a higher capacity side part of the normalized Q-V profile on the basis of a capacity value of the cut-off reference point. The control circuit determines at least one degradation parameter of the battery cell based on the profile fitting factor.

ELECTRODE CUTTER FOR PREVENTING ELECTRODE DELAMINATION

Resumen de: EP4647222A1

Disclosed is an electrode cutter capable of preventing or reducing a thin and long thread-like detached material generated during a process of cutting an electrode or reducing the length of the detached material. The electrode cutter includes an upper cutter and a lower cutter, wherein a zigzag-shaped cutting portion is provided on at least one of a surface of the upper cutter and a surface of the lower cutter in a blade length direction. The zigzag shape prevents the detached material or significantly reduces the length thereof.

ELECTRODE PRODUCTION APPARATUS AND BATTERY CELL COMPRISING ELECTRODES PRODUCED THEREBY, AND BATTERY PACK AND VEHICLE COMPRISING BATTERY CELLS

Resumen de: EP4648116A1

Disclosed are an electrode producing device, a battery cell including an electrode produced using the same, and a battery pack and a vehicle including the battery cell. According to an embodiment of the present disclosure, an electrode producing device for producing an electrode by transporting an electrode foil on which a coated portion of a coating layer and an uncoated portion of a non-coating layer are formed may include: a transport unit configured to transport the electrode foil; a coated-portion pressurizing unit configured to pressurize the coated portion of the electrode foil transported by the transport unit; and an uncoated-portion pressurizing unit spaced apart from the coated-portion pressurizing unit and configured to pressurize the uncoated portion.

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY PHASE AND AMPLITUDE DETECTION OF A STIMULATED SYSTEM

Resumen de: EP4647786A1

Systems, apparatuses, and methods for electrochemical impedance spectroscopy (EIS) for use with batteries, including for EIS phase and amplitude detection of a stimulated system are provided. A battery management system comprising EIS circuitry (510) is electrically coupled to a battery (100). The EIS circuitry (510) provides a stimulus signal (512) to the battery to generate a response signal (514) from the battery (100). A current signal and voltage signal are generated by the EIS circuitry (510) based on the response signal (514) from the battery (100). The EIS circuitry (510) generates at least one output signal (522) based on the current signal and the voltage signal, and an impedance is generated based on the at least one output signal (522).

ELECTRODE FOR RECHARGEABLE BATTERY AND ELECTRODE ASSEMBLY INCLUDING THE SAME

Resumen de: EP4648119A1

An electrode for a rechargeable battery according to one or more embodiments of the present disclosure includes: a substrate; and an active material layer that is formed on the substrate, includes a plurality of holes, and includes a first density portion and a second density portion. The first density portion has a higher density than that of the second density portion, the second density portion has a lower density than that of the first density portion, and the second density portion is disposed at both sides (e.g., opposite sides) of the first density portion.

POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND BATTERY

Resumen de: EP4648136A1

A cathode material, a preparation method thereof, and a battery provided. The cathode material is a nickel-lithium cobalt oxide based composite oxide including a core and a surface reconstruction layer arranged outside the core, where the surface reconstruction layer is a region etched away by dissolving the cathode material with 100 times diluted aqua regia for 30 minutes, with an ambient temperature controlled to be 300°C during dissolution, and the core is a remaining region after the surface reconstruction layer is etched away from the cathode material, and where the core has a Li molar content of m1, the surface reconstruction layer has a Li molar content of m2, and 1.3≤m2/m1≤4.0. The cathode material provided is improved stability of crystal structure while having high capacity, thereby improving cycle stability of the cathode material and improving withstand voltage of the cathode material.

METHOD AND APPARATUS FOR PROVIDING AN ELECTRODE STRAND USING LINER MATERIAL, AND USES THEREOF

Resumen de: EP4648154A1

Zur Reduzierung von Aufwand und Kosten einer Zellherstellung in einem kontinuierlichen Verfahren bei hoher Qualität schafft die Erfindung ein Elektrodenstrangbereitstellverfahren zum Bereitstellen wenigstens eines Elektrodenstrangs (32, 88), der wenigstens eine Separatorbahn (34.1, 34.2) sowie wenigstens ein daran fixiertes Elektrodenmaterial (50.1, 50.2, 36.1, 36.2) aufweist, umfassenda) Laminieren eines ersten Elektrodenmaterials (50.1, 36.1) an eine erste Separatorbahn (34.1) in einer ersten Laminierstation (46.1) mittels eines ersten Laminierwerkzeugs (76.1) unter Zwischenfügen einer Linerbahn (100), um ein Anhaften von zu laminierendem Material an dem ersten Laminierwerkzeug (76.1) zu verhindern,b) Laminieren eines zweiten Elektrodenmaterials (50.2, 36.2) an eine Separatorbahn (34.1, 34.2) in einer zweiten Laminierstation (46.2) mittels eines zweiten Laminierwerkzeugs (76.2) unter Zwischenfügen einer Linerbahn (100), um ein Anhaften von zu laminierenden Material an dem zweiten Laminierwerkzeug (76.2) zu verhindern,wobei in Schritt a) und b) dieselbe Linerbahn (100) verwendet wird.

TAB FORMING APPARATUS OF ELECTRODE ASSEMBLY

Resumen de: EP4648209A1

A forming device according to an embodiment of the present disclosure is a forming device for radially bending an electrode tab in which a first electrode of an electrode assembly where a first electrode, a separator, and a second electrode are stacked and wound around a central axis is extending to an axial end further than a separator and exposed, wherein the forming device includes a forming jig for bending the electrode tab, the forming jig includes an opposing surface facing the electrode assembly, and the opposing surface has an indentation depth of the opposing surface that is indented in a direction opposite to the pressing direction.

ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: EP4647399A1

An electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided, and may promote the nano-fibrillation of a fibrillable binder, and improve the mechanical properties and electrical properties of a battery. In one or more embodiments, an electrode includes a freestanding dry electrode film including an electrode active material, a binder, and a conductive additive, and the conductive additive includes a carbon black-based compound of which a specific surface area is 350 m²/g or less and a crystallite size is 15 Å or more.

CELL CASE FOR BATTERY CELL BODY

Resumen de: EP4648183A1

Ein Zellgehäuse (10) für einen Batteriezellkörper (12), mit Seitenwänden (14, 16) und einer an einer der Seitenwände (14, 16) angeordneten Berstvorrichtung (22). Die Berstvorrichtung (22) ist aus einem Einlegerelement (24) und einer Berstmembran (26) gebildet. Das Einlegerelement (24) weist eine Bersthilfe (38) mit einer Schneidgeometrie (40) auf, die der Berstmembran (26) zugeordnet ist. Die Bersthilfe (38) steht in Richtung der Berstmembran (26) über eine vom Einlegerelement (24) definierte Ebene hervor.

BATTERY MODULE

Resumen de: EP4648182A1

A battery module including: a plurality of battery cells arranged in one direction, each of the plurality of battery cells including a vent in an upper side thereof, the vent having a thin film shape; and a protective member covering an upper side of the vent of each of the plurality of battery cells. The protective member being made of a foam heat insulating material including a plurality of pores.

BATTERY TAB MISALIGNMENT DETECTION METHOD AND APPARATUS, AND BATTERY ELECTRODE SHEET WINDING SYSTEM

Resumen de: EP4647715A1

The present application provides a misalignment detection method and apparatus for battery tabs, and a battery electrode plate winding system. The misalignment detection method for battery tabs includes: using a winding shaft to wind a battery electrode plate; for an N^th (N is an integer greater than 0) layer of an electrode plate section wound on the winding shaft: obtaining, in a winding period, an image to be tested of the layer of the electrode plate section, where the image to be tested includes a battery tab region; determining a relative positional relationship, between a battery tab and a reference part on the winding shaft, in the image to be tested; and determining, according to the relative positional relationship and a layer number of the N^th layer of the electrode plate section on the winding shaft, a misalignment amount of the battery tab when the wound electrode plate is pressed into a battery cell.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4648120A1

A positive electrode active material comprises a first active material represented by a formula (I) and a second active material represented by a formula (II). The formula (I) and the formula (II) are as specified in the claims. Each of the first active material and the second active material is secondary particles each consisting of 50 or more primary particles aggregated together. An average particle size (D₁50) of the first active material is smaller than an average particle size (D₂50) of the second active material.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4648128A1

A positive electrode active material comprises a first active material represented by a formula (I) that is secondary particles each consisting of 50 or more primary particles aggregated together, as well as a second active material represented by a formula (II) that is at least one of single particles and secondary particles each consisting of 2 to 10 primary particles aggregated together. The formula (I) and the formula (II) are as specified in the claims. A content of the first active material in the positive electrode active material is from 20 to 70 mass%. A ratio (D₁50/D₂50) of an average particle size (D₁50) of the first active material to an average particle size (D₂50) of the second active material is from 2.45 to 5.95.

CONNECTOR BLOCK FOR A FLUID LINE STRUCTURE AND FLUID LINE STRUCTURE OF A MODULAR TEMPERATURE CONTROL SYSTEM

Resumen de: EP4647706A1

Die vorliegende Erfindung betrifft einen Konnektorblock (KB) für eine Fluidleitungsstruktur (1a) für ein modulares Temperiersystem (TS) eines Energiespeichers, insbesondere für ein Kühlsystem für Fahrzeugbatterien, mit mindestens einer Sammelleitung (2) für das Fluid sowie mit mindestens einer ersten Abzweigleitung (3) für den Vorlauf des Fluids an mindestens ein fluidführendes hohles, insbesondere plattenförmiges, Kühlelement (4) und mit mindestens einer zweiten Abzweigleitung (4) für den Rücklauf des Fluids von dem fluidführenden hohlen plattenförmigen Kühlelement (20) sowie mit mindestens einer ersten Verteilerschnittstelle (3a) und einer zweiten Verteilerschnittstelle (4a) zum jeweiligen Anschluss der Abzweigleitungen (3, 4) an die Sammelleitung (2). Um eine derartige Struktur (1a) bei Erhalt eines geringen Montageaufwandes und ohne Vergrößerung der Anzahl von Verbindungsstellen derart zu modifizieren, dass darin eine strömungsmechanische Verbesserung des Fluidstromes erzielt werden kann, wird vorgeschlagen, dass in dem Konnektorblock (KB) mindestens eine der Abzweigleitungen (3, 4) trichterförmig ausgebildet ist, wobei sich der Querschnitt der Abzweigleitung (3, 4) ausgehend vom Querschnitt (A2) an der Verteilerschnittstelle (3a, 4a) an der Sammelleitung (2) bis zur Anbindung an den Querschnitt (A20) des fluidführenden hohlen plattenförmigen Kühlelementes (20) erweitert.

COMPOSITIONS AND METHODS FOR FLUOROSURFACTANTS IN METAL ION BATTERIES

Nº publicación: EP4646750A1 12/11/2025

Solicitante:

EKK ADVANCED TECH LLC [US]
EKK Advanced Technologies, LLC

Resumen de: US2025337016A1

The present disclosure provides, inter alia, compositions and methods for improving metal ion battery performance. In some aspects, the present disclosure provides an electrolyte comprising a fluorosurfactant additive that is effective to improve battery lifetime, initial capacity, capacity fade, wetting time, and dendrite formation in a metal ion battery.