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TUNGSTEN DOPED MULTI-IONIC CATHODE

Resumen de: US20260070810A1

The present invention discloses to tungsten doped mixed cationic cathodes for energy devices notably non-aqueous re-chargeable alkali-ion electrochemical cells and batteries and to the process of preparation thereof. More particularly, the present invention discloses to doped cathode active materials of Formula (I) that show a higher capacity and which can able to retains their structure during the entire charging-discharging cycles.

Cathode Active Material for Secondary Battery and Secondary Battery Including the Same

Resumen de: US20260070808A1

According to embodiments of the present disclosure, a cathode active material for a secondary battery includes first lithium transition metal oxide particles having a single particle form and including cobalt in an amount of 15,000 ppm or less based on their total weight, and second lithium transition metal oxide particles having a secondary particle form and including cobalt in an amount of 15,000 ppm or less based on their total weight. The cobalt content based on the total weight of the first lithium transition metal oxide particles is greater than the cobalt content based on the total weight of the second lithium transition metal oxide particles.

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY

Resumen de: US20260070806A1

A cathode active material for lithium secondary batteries contains secondary particles which are an aggregate of primary particles, in which the cathode active material for lithium secondary batteries has a layered structure, the cathode active material for lithium secondary batteries contains an element M1 and an element M2, the element M1 is at least one element selected from the group consisting of Nb, W, Mo, Ta, La, B, and P, the element M2 is at least one element M2 selected from the group consisting of Ni, Co, and Mn, and (1) and (2) are satisfied.

Lithium-Doped Silicon-Based Oxide Negative Electrode Active Material, Method of Preparing the Same, and Negative Electrode and Secondary Battery Including the Same

Resumen de: US20260074194A1

Provided are a negative electrode active material which includes negative electrode active material particles which includes a silicon oxide (SiOx, 0

Electrode for an Electrochemical Storage Cell, Electrochemical Storage Cell and Method of Producing an Electrode

Resumen de: US20260074233A1

Electrodes for an electrochemical storage cell, including a conductor foil including an application zone for an electrode coating, the application zone including an outer region and a central region, are provided. The outer region of the application zone lies closer to an outer edge of the conductor foil than the central region. The application zone, in the outer region, has at least one electrolyte conduction region in which the diffusion rate of an electrolyte of the electrochemical storage cell is higher than in the application zone outside the electrolyte conduction region. Electrochemical storage cells including at least one electrode are further provided. Processes for producing an electrode for an electrochemical storage cell are further provided.

SECONDARY-BATTERY POSITIVE ELECTRODE, METHOD FOR PRODUCING SAME, AND SECONDARY BATTERY

Resumen de: US20260074211A1

A positive electrode for a secondary battery including a positive electrode current collector, and a positive electrode active material layer supported on the positive electrode current collector. The positive electrode active material layer includes active material particles and an oxide film covering at least part of surfaces of the active material particles. The active material particles include a lithium-containing transition metal oxide, and the oxide film contains an oxide of a first element other than nonmetal elements. When a thickness of the positive electrode active material layer is denoted by TA, Tb<Tt is satisfied, where the Tb and the Tt are thicknesses of the oxide film at a position of 0.10TA and at a position of 0.90TA, respectively, from a surface of the positive electrode current collector in the positive electrode active material layer.

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260074193A1

An anode active material for a lithium secondary battery according to an embodiment of the present invention includes a first anode active material and a second anode active material, each of which includes a carbon-based active material and has a crystallite size in a range from 50 nm to 60 nm. An XRD orientation ratio of the first anode active material is in a range from 0.9 to 1.2, and an XRD orientation ratio of the second anode active material is in a range from 1 to 5. High-temperature storage and life-span properties are improved while maintaining high capacity using the combination of the first and second anode active materials.

SILICON-CARBON COMPOSITE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2026051513A1

The present application relates to the technical field of batteries, and specifically relates to a silicon-carbon composite material, and a preparation method therefor and the use thereof. The silicon-carbon composite material of the present application comprises a silicon nanosheet and a composite carbon structure located on the surface of the silicon nanosheet, wherein the composite carbon structure comprises a carbon framework and S, and the carbon framework and S form an S-C bond. The silicon-carbon composite material of the present application has great structural stability, can improve the ion and electron conductivity of a silicon negative electrode, and forms a three-dimensional ion- and electron-conducting path inside the silicon negative electrode, thereby ameliorating the problem of capacity attenuation of a pure silicon negative electrode during a cycling process, so as to achieve stable long-cycling performance and obtain a high capacity retention rate.

THERMAL MANAGEMENT SYSTEM FOR DISSIPATING HEAT FROM BATTERY PACK, AND ENERGY STORAGE DEVICE

Resumen de: WO2026051698A1

The present application provides a thermal management system for dissipating heat from a battery pack, and an energy storage device. In the thermal management system, an output end of a compressor is in communication with a condenser and is connected to an evaporator, and is also directly connected to an input end of the evaporator by means of a bypass branch. The input end of the evaporator can selectively receive a low-temperature refrigerant from the condenser and a high-temperature gaseous refrigerant from the compressor, and the two are mixed in the evaporator, so that the low-temperature refrigerant is heated by the high-temperature gaseous refrigerant. Thus, in a low-temperature environment, the degree of superheat of a refrigerant flowing out of the evaporator can be effectively increased, preventing liquid refrigerant from being drawn into the condenser under low-temperature conditions, and eliminating the risk of drawing in air together with liquid in the condenser, thereby increasing the reliability of operation of the condenser in a low-temperature state.

BATTERY

Resumen de: WO2026051630A1

Provided in the present application is a battery, comprising a battery cell main body, a bottom adhesive layer and a head adhesive layer, wherein the battery cell main body comprises a top surface and a bottom surface, and a first side surface, a second side surface, a third side surface and a fourth side surface which are located between the top surface and the bottom surface and are successively connected end to end in a circumferential direction; the second side surface has a stepped surface, the stepped surface comprising a first side surface region, a vertical surface region and a second side surface region which are successively connected, and the second side surface region protruding outwards with respect to the first side surface region; the bottom adhesive layer is located at the bottom of the battery cell main body and is provided with a first notch at a position close to or corresponding to the vertical surface region; the head adhesive layer is located at the top of the battery cell main body and is provided with a second notch at a position close to or corresponding to the vertical surface region. By means of the stepped surface, the battery can be adapted to a battery compartment structure having a local protrusion, thereby helping to improve the space utilization rate of entire devices and improve the battery capacity.

CELL BALANCING METHOD, APPARATUS AND DEVICE, READABLE STORAGE MEDIUM AND PROGRAM PRODUCT

Resumen de: WO2026051280A1

A cell balancing method, apparatus and device, a readable storage medium and a program product. The method comprises: determining whether a voltage difference between a cell in a battery pack that has the highest current voltage and the remaining cells meets a balancing enabling condition; if the voltage difference meets the balancing enabling condition, entering a first balancing stage, wherein in the first balancing stage, the cell which has the highest current voltage is used to charge, by using a first current, a cell which has the lowest current voltage; and after the first balancing stage is entered, if the voltage difference does not meet the balancing enabling condition, entering a second balancing stage, wherein in the second balancing stage, the cell which has the highest current voltage is used to charge, by using a second current, the cell which is charged by means of the first current in the first balancing stage, and the second current is less than the first current. In the solution disclosed in the present application, the cell which is charged by means of the first current is charged by using a small current, so as to compensate for capacity loss caused by self-discharging of the cell, and reduce the depth of charging and discharging and heat generation of the cell; thus, falsely high capacity and voltage of the cell are avoided, such that the cell can maintain a good state of health.

NITROGEN-CONTAINING BRANCHED POLYMER, ANION EXCHANGE RESIN, ANION EXCHANGE MEMBRANE, AND ELECTROCHEMICAL DEVICE

Resumen de: WO2026051266A1

The present application provides a nitrogen-containing branched polymer, an anion exchange resin, an anion exchange membrane, and an electrochemical device. The nitrogen-containing branched polymer comprises a nitrogen-containing heterocyclic ring, a branched structure and an aryl, wherein the number of branching points of each branched structure is not less than 3, and the aryl is linked with the branching points of the branched structure by means of the nitrogen-containing heterocyclic ring. The molar ratio of the aryl to the branched structure in the nitrogen-containing branched polymer is A:B = 80-99:1-20. The nitrogen-containing branched polymer satisfies: PDI≤2.6, and has a weight-average molecular weight of 40,000 g/mol to 50,000 g/mol.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: WO2026051628A1

A secondary battery and an electronic apparatus. The secondary battery comprises: a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode comprises a positive electrode current collector, and an insulating layer and a positive electrode material layer which are provided on the positive electrode current collector; and the insulating layer comprises boehmite, the positive electrode material layer comprises lithium iron phosphate and lithium manganate, and the electrolyte comprises lithium difluorophosphate. The present application not only improves the floating charge safety of secondary batteries, but also reduces the rate of particle fragmentation.

TRAKTIONSBATTERIEQUERTRÄGERBAUGRUPPEN MIT WÄRMEVERWALTUNGSVENTILÖFFNUNGSMECHANISMEN ZUR GESTEUERTEN ENTLÜFTUNG

Resumen de: DE102025136366A1

Es sind Batteriezellstapelquerträgerbaugruppen für Traktionsbatteriepacks bereitgestellt. Eine beispielhafte Querträgerbaugruppe kann eine Wärmeisolationsfolie zum Blockieren der Übertragung von Wärmeenergie auf benachbarte Strukturen innerhalb des Traktionsbatteriepacks beinhalten. Die Wärmeisolationsfolie hat Wärmesteuerventile in Form von freigebbaren Laschen zum Steuern des Stroms von Batteriezellenentlüftungsnebenprodukten während Batteriewärmeereignissen integriert. Ein Entlüftungsband kann die Wärmeisolationsfolie an der Querträgerbaugruppe sichern und kann dazu fungieren, einen Öffnungsmechanismus zum Steuern der Freigabe der Laschen bereitzustellen.

Batteriezelle mit verbessertem elektrischen Widerstand und gleichmäßiger Stromdichte

Resumen de: DE102024126699A1

Eine Batteriezelle und ein Batteriezellenmodul sowie ein Verfahren zum Herstellen von Batterien mit verbessertem elektrischem Widerstand und gleichmäßiger Stromdichte werden bereitgestellt. Die Batteriezelle umfasst eine erste und eine zweite negative Elektrode sowie eine erste und eine zweite positive Elektrode, die jeweils eine bestimmte Länge und Breite aufweisen, wobei sich mehrere Laschen von einer Seite entlang der Breitenrichtung nach außen erstrecken. Im gestapelten Zustand befinden sich die Laschen der ersten und zweiten negativen Elektrode auf der gleichen Seite in einer abwechselnden Anordnung, die im Wesentlichen die gesamte Elektrodenlänge abdeckt, und die Laschen der ersten und zweiten positiven Elektrode befinden sich auf der entgegengesetzten Seite in einer abwechselnden Anordnung, die im Wesentlichen die gesamte Elektrodenlänge abdeckt. Die Batteriezelle enthält außerdem Stromschienen mit verschiedenen Konfigurationen, um effektive elektrische Verbindungen zu gewährleisten.

NEUARTIGE KONSTRUKTION EINER STROMSCHIENE MIT VORGEFÜLLTEM NATRIUM

Resumen de: DE102024135166A1

Eine Stromschiene (100) umfasst eine erste längliche Struktur (110A) und eine oder mehrere zweite längliche Strukturen (110B) aus einem leitenden Material zur Übertragung eines elektrischen Stroms. Wenigstens ein Abschnitt der Stromschienenstruktur weist einen hohlen Querschnitt mit einem inneren Hohlraum (112) auf. Der innere Hohlraum (112) ist mit einem Kühlmedium (120) vorgefüllt, um die Wärme zu absorbieren, die durch den von der Stromschiene (100) übertragenen elektrischen Strom erzeugt wird. Bei dem Kühlmedium (120) kann es sich um ein leitfähiges Phasenwechselmaterial wie Natrium handeln, das eine Phasenwechseltemperatur von 98 °C zwischen fest und flüssig aufweist. Wenn die Temperatur der Stromschiene 98 °C erreicht, absorbiert Natrium die Wärme, ohne dass die Temperatur der Stromschiene (100) ansteigt, und verhindert so einen Temperaturanstieg der Stromschiene (100). Da Natrium leichter ist, trägt es auch zur Gewichtsreduzierung der Stromschiene (100) bei, ohne die Strombelastbarkeit stark zu beeinträchtigen.

SECONDARY BATTERY TEST APPARATUS AND TEST METHOD USING THE SAME

Resumen de: US20260074310A1

A secondary battery test apparatus and a test method using the same are disclosed. According to one aspect of the present disclosure, there is provided a secondary battery test apparatus including an outer case having an inner chamber, and an inner case disposed in the inner chamber, wherein the inner case includes a plurality of partition spaces, in which each secondary battery, which is a test subject, is disposed, and a barrier cover that is fastened to a barrier, which is a test subject, between adjacent partition spaces to seal a space between the barrier and the inner case between the adjacent partition spaces.

BATTERY HOUSING AND BATTERY

Resumen de: US20260074330A1

A battery housing includes a shell and a cover plate. The shell includes a side frame, and the side frame includes a first open end. The cover plate is arranged at the first open end. One of the shell and the cover plate is provided with an annular recessed portion, and the other one of the shell and the cover plate is matched with the recessed portion. When the cover plate covers the first open end of the shell, the cover plate and the shell are limited by matching by means of the recessed portion, to prevent the cover plate from moving relative to the shell during welding.

COMPOSITE SUBSTRATE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US20260074324A1

Disclosed is a composite substrate for a rechargeable lithium battery including a support layer having a first surface and a second surface that are opposite to each other, a first metal layer on the first surface, and a second metal layer on the second surface. The support layer includes a plurality of first through parts penetrating the first surface and spaced apart from each other along a first direction, and a plurality of second through parts penetrating the second surface and spaced apart from each other along the first direction. The plurality of first through parts and the plurality of second through parts are alternately disposed along the first direction, and the first direction is substantially parallel to the first surface.

SECONDARY BATTERY, BATTERY MODULE, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: US20260074325A1

A secondary battery, a battery module, and/or a method for manufacturing the secondary battery are disclosed. A secondary battery includes a case accommodating an electrode assembly, and a terminal coupled to the case, and the terminal includes a softened region.

BATTERY CLIP

Resumen de: US20260074337A1

A battery clip for retaining a battery to a circuit carrier is disclosed along with an assembly including a circuit carrier having a plurality of flexible tabs. The battery clip includes a plurality of slots configured to mate with and receive the flexible tabs of the circuit carrier such that the battery clip and the circuit carrier are secured together such that a first terminal of a retained battery physically contacts and is in electrical communication with the circuit carrier's first pad, the battery clip further comprising one or more flexible conductive fingers configured to contact a second terminal of a retained battery to establish an electrical communication between the fingers and the second terminal, and wherein the battery clip includes an electrically conductive material and establishes electrical communication between the fingers and the circuit carrier's second pad.

LITHIUM- UND MANGANREICHE POSITIVE AKTIVMATERIALZUSAMMENSETZUNGEN

Resumen de: DE102025136093A1

Ein Aktivmaterial für positive Elektroden für Lithium-Ionen-Batterien kann eine Verbindung beinhalten, die durch die allgemeine Formel Li1,10-aMn0,52+aNi0,38-xCoxO2dargestellt ist, wobei 0 < a < 0,1, 0 ≤ x ≤ 0,02, eine mittlere Oxidationszahl von Ni 2,0 beträgt und eine mittlere Oxidationszahl von Mn zwischen 3,6 und 4,0 liegt.

Fahrzeugbatterie

Resumen de: DE102026103227A1

Die Erfindung betrifft eine Fahrzeugbatterie (1), umfassend eine Fahrzeugbatterieanordnung (3) mit einer Mehrzahl von Batteriezellen (5) und einen Batteriekasten (7) zur Aufnahme der Batteriezellen (5), und sieht vor, dass der Batteriekasten (7) wannenartig ausgebildet ist und ein Unterteil (8) eines Batteriegehäuses (15) bildet, welches ebenfalls ein Oberteil (11) aufweist, das einen umlaufenden Rand (13) umfasst, der in Richtung des Unterteils (8) von dem Oberteil (11) abragt und der in einem auf dem Unterteil (8) aufgesetzten Zustand (100) des Oberteils (11) das Unterteil (8) zumindest bereichsweise überlappt (20).

Energiespeicher mit Isolationsschicht und Verfahren zur Herstellung eines elektrischen Energiespeichers mit Isolationsschicht

Resumen de: DE102024125882A1

Es wird ein Verfahren (500) zur Herstellung eines elektrischen Energiespeichers (110, 400) beschrieben, wobei der elektrische Energiespeicher (110, 400) eine Vielzahl von Speicherzellen (200) umfasst und wobei die einzelnen Speicherzellen (200) jeweils Kontaktpunkte (201, 202) zur elektrischen Kontaktierung der jeweiligen Speicherzelle (200) aufweisen. Das Verfahren (500) umfasst das Anordnen (501) eines Zellverbinders (350) an den Kontaktpunkten (201, 202) von zumindest zwei Speicherzellen (200), wobei der Zellverbinder (350) eine leitende Schicht (301) aufweist, die an einer den Speicherzellen (200) zugewandten Seite eine Isolationsschicht (302) aufweist, wobei die Isolationsschicht (302) an Kontaktbereichen (231, 232) für die Kontaktpunkte (201, 202) der Speicherzellen (200) jeweils eine Aussparung (303) aufweist, und wobei die leitende Schicht (301) an einer von den Speicherzellen (200) abgewandten Seite keine Isolationsschicht (304) aufweist. Des Weiteren umfasst das Verfahren (500) das Verbinden (502) der Kontaktbereiche (231, 232) des Zellverbinders (350) jeweils paarweise mit den Kontaktpunkten (201, 202) der Speicherzellen (200), sowie im Anschluss an das Verbinden (502), das Anordnen (503) einer weiteren Isolationsschicht (362) an der abgewandten Seite der leitenden Schicht (301) des Zellverbinders (350).

Verfahren und Vorrichtung zur Ermittlung eines temperaturabhängigen Emissionskoeffizienten eines Prüfkörpers

Nº publicación: DE102024126202A1 12/03/2026

Solicitante:

BAYERISCHE MOTOREN WERKE AG [DE]
Bayerische Motoren Werke Aktiengesellschaft

Resumen de: DE102024126202A1

Die vorliegende Erfindung betrifft ein Verfahren zur Ermittlung eines temperaturabhängigen Emissionskoeffizienten eines Prüfkörpers, insbesondere einer Batterieelektrodenfolie. Ferner betrifft die Erfindung eine Vorrichtung zur Durchführung eines derartigen Verfahrens. Ferner betrifft die Erfindung eine Prozessanlage zur Herstellung einer Batterieelektrode.