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ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Resumen de: US20260024816A1

An electrochemical apparatus includes a positive electrode, the positive electrode includes a positive electrode active material, and the positive electrode active material contains metal elements Co and Mn, where based on a total mass of the positive electrode active material, a mass percentage of Mn is B %; and an electrolyte, the electrolyte includes a boron-containing lithium salt, where based on a total mass of the electrolyte, a mass percentage of the boron-containing lithium salt is C %; where 0.05≤C≤1, and 0.01≤C/10B≤2.

NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM ION BATTERY

Resumen de: US20260024811A1

The present disclosure relates to a non-aqueous electrolyte and a lithium-ion battery. The non- aqueous electrolyte according to the present invention includes a lithium salt, an organic solvant and additives. The percentage by weight of the additives in the non-aqueous electrolyte is 0001% to 10%, the additives include 1,3,6-hexanetricarbonitrile and vinylene carbonate, and the weight ratio of 1,3,6-hexanetricarbonitrile to vinylene carbonate is 1:4 to 19. Under the synergistic effect of 1,3,6-hexanetricarbonitrile and vinylene carbonate, the lithium-ion battery prepared with the non-aqueous electrolyte has better cycle performance and heat resistance.

SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY POSITIVE ELECTRODE, POSITIVE ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY

Resumen de: US20260024754A1

Provided is a slurry composition for a non-aqueous secondary battery positive electrode that has excellent dispersibility and that can cause a positive electrode mixed material layer to display excellent adhesiveness and water shedding ability. The slurry composition for a non-aqueous secondary battery positive electrode contains carbon coating layer-covered olivine-type lithium iron phosphate particles in which surfaces of olivine-type lithium iron phosphate particles are at least partially covered by a carbon coating layer and a polymer X including an acidic group-containing monomer unit in a proportion of not less than 3 mass % and not more than 40 mass %. Surfaces of the carbon coating layer-covered olivine-type lithium iron phosphate particles have a weak acid group content of not less than 5 μmol/g and not more than 15 μmol/g.

Rechargeable Alkali Metal Battery Containing a Sodium Salt, Lithium Salt, or Potassium Salt Composite Cathode and Manufacturing Method

Resumen de: US20260024752A1

Provided is a cathode active material for a rechargeable alkali metal battery, wherein the cathode active material comprises a sodium salt composite comprising a mixture or composite of Fe and at least a sodium salt selected from NaxA, wherein x is from 1 to 3, and the anion Ax− is selected from F−, Cl−, Br−, I−1, PO43−, SO42−, CO32−, SiO32−, NO3−, B4O72−, or a combination thereof, wherein a molar ratio of Fe-to-sodium salt is from 1/9 to 9/1. Also provided is a rechargeable alkali metal battery comprising this cathode active material, which is a sodium battery (sodium-ion or sodium metal battery), a lithium battery (lithium-ion or lithium metal battery), or a potassium battery (potassium-ion or potassium metal battery).

ELECTROLYTE ADDITIVE, BATTERY ELECTROLYTE INCLUDING ELECTROLYTE ADDITIVE, AND SECONDARY BATTERY INCLUDING BATTERY ELECTROLYTE

Resumen de: US20260024813A1

The present invention relates to an electrolyte additive, a battery electrolyte including the electrolyte additive, and a secondary battery, and more particularly, to an electrolyte additive including a compound represented by Chemical Formula 1, an electrolyte including the electrolyte additive, and a secondary battery including the electrolyte. According to the present invention, due to low charging resistance, charging efficiency and output may be improved. In addition, the present invention has an effect of providing a secondary battery having a long lifespan and excellent capacity retention at high temperature.

ADDITIVE FOR NON-AQUEOUS ELECTROLYTIC SOLUTION, NON-AQUEOUS ELECTROLYTIC SOLUTION, AND POWER STORAGE DEVICE

Resumen de: US20260024810A1

An additive for a non-aqueous electrolytic solution includes a cyclic sulfone compound represented by Formula (1):X1 represents a sulfonyl group and Z represents a monovalent group represented by Formula (21), (22), (23), or (24):

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: US20260024749A1

A secondary battery includes an electrode assembly. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. The separator is disposed between the positive electrode plate and the negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer. A surface of the negative electrode active material layer facing towards the positive electrode plate has grooves, a width of the groove is W mm, and a spacing of the grooves is S mm. A thickness of the electrode assembly is T1 mm, satisfying: W≥S×T1/1000.

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

Resumen de: US20260024812A1

Electrolytes and rechargeable lithium batteries are disclosed. The electrolyte includes a non-aqueous organic solvent, a lithium salt, a first additive represented by Chemical Formula 1, and a second additive represented by Chemical Formula 2.

BINDER FOR SECONDARY BATTERY FUNCTIONAL LAYER, SLURRY COMPOSITION FOR SECONDARY BATTERY FUNCTIONAL LAYER, FUNCTIONAL LAYER FOR SECONDARY BATTERY, AND SECONDARY BATTERY

Resumen de: US20260024774A1

Provided is a binder for a secondary battery functional layer that can form a functional layer having excellent heat shrinkage resistance, adhesiveness, and preservation stability. The binder for a secondary battery functional layer contains a particulate polymer including an acidic functional group-containing monomer unit and a reactive functional group-containing monomer unit including a functional group that can react with an acidic functional group. The proportional content of the reactive functional group-containing monomer unit is not less than 7 mass % and not more than 30 mass % when all monomer units included in the particulate polymer are taken to be 100 mass %. A film that is formed of the particulate polymer after accelerated testing has an elastic modulus of 10 MPa or less.

SOLID ELECTROLYTE COMPOSITION AND METHOD OF PRODUCING SOLID ELECTROLYTE MEMBER

Resumen de: US20260024806A1

The present disclosure provides a solid electrolyte composition that can suppress deterioration in ion conductivity of an ionic solid electrolyte material. The solid electrolyte composition according to the present disclosure contains a sulfur element-free ionic solid electrolyte material and an organic solvent, where the organic solvent includes at least one selected from the group consisting of a hydrocarbon and a compound having a functional group; and the functional group is at least one selected from the group consisting of an ether group, a halogen group, and a Si—O—C group.

ANODE COMPOSITION, ANODE COMPRISING SAME FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME ANODE

Resumen de: US20260024748A1

A negative electrode composition, a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode composition comprises a porosity securing material and a linear conductive material, and thereby maximizing diffusion of lithium ions while maintaining porosity of the negative electrode, securing conductivity, and lowering resistance of the negative electrode.

NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM BATTERY

Resumen de: US20260024809A1

Embodiments described herein are directed to an electrolyte solution and a lithium-ion secondary battery. The electrolyte solution includes an organic solvent, an electrolyte salt and an additive, wherein the additive includes pyridine boron trifluoride, fluoroethylene carbonate and 1,3,6-hexanetricarbonitrile. The mass percentage content of the pyridine boron trifluoride in the electrolyte solution is 0.1-5%; the mass percentage content of the fluoroethylene carbonate in the electrolyte solution is 0.1-8%; and the mass percentage content of the 1,3,6-hexanetricarbonitrile in the electrolyte solution is 0.1-5%. By means of the synergistic effect of the different types of additives mentioned above, the high-temperature performance and the normal-temperature performance of a high-voltage lithium-ion battery are improved; moreover, the use of sulfur-containing substances can be reduced or even avoided.

POLYMER SOLID ELECTROLYTE AND PREPARATION METHOD THEREOF

Resumen de: US20260024808A1

The present disclosure relates to a polymer solid electrolyte and a preparation method thereof. The polymer solid electrolyte includes a polymer including a cross-linkable functional group; a lithium salt; and a solvent including a first solvent and a second solvent, wherein the polymer solid electrolyte having a cross-linked structure and an amorphous polymer chain including the cross-linkable functional group, and wherein the cross-linked structure includes (a) a cross-linkage between cross-linkable functional groups, (b) a cross-linkage between the cross-linkable functional group and the first solvent, and (c) a linkage between the cross-linkable functional group and the lithium salt.

SOLID-STATE BATTERY

Resumen de: US20260024805A1

A solid-state battery includes an electrode laminate body in which a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer are laminated in this order, in which: each of the positive electrode active material layer, the solid electrolyte layer, and the negative electrode active material layer contains a sulfide solid electrolyte; a surface moisture amount of the electrode laminate body is 200 ppm to 1500 ppm; and the ratio of the surface moisture amount to a whole moisture amount in the whole of the electrode laminate body is 0.50 to 1.00.

SOLID-STATE BATTERY

Resumen de: US20260024768A1

A solid-state battery including: a negative electrode layer including: a negative electrode active material including a Li composite oxide; and an oxide glass-based solid electrolyte, in which a content percentage of the solid electrolyte is 20% by mass to 60% by mass based on a total amount of the negative electrode active material and the solid electrolyte in the negative electrode layer, and a ratio (B/A) of an actual density B of the negative electrode active material to a true density A of the negative electrode active material is 0.3 to 0.6.

ALL-INORGANIC SOLVENTS FOR ELECTROLYTES

Resumen de: US20260024807A1

An all-inorganic electrolyte formulation for use in a lithium-ion battery system comprising at least one of each a phosphoranimine, a phosphazene, a monomeric organophosphate and a supporting lithium salt. The electrolyte preferably has a melting point below 0° C., and a vapor pressure of combustible components at 60.6° C. sufficiently low to not produce a combustible mixture in air, e.g., less than 40 mmHg at 30° C. The phosphoranimine, phosphazene, and monomeric phosphorus compound preferably do not have any direct halogen-phosphorus bonds. A solid electrolyte interface layer formed by the electrolyte with an electrode is preferably thermally stable ≥80° C.

LITHIUM SECONDARY BATTERY

Resumen de: US20260024802A1

The present application relates to a lithium secondary battery, including a positive electrode, a silicon-based negative electrode, a separator provided between the positive electrode and the negative electrode, and an electrolyte. The initial efficiency between the positive electrode and the negative electrode and the differences in area, full width, and full length between the positive electrode and the negative electrode can be adjusted to provide cycle improvement in the performance of the lithium secondary battery.

METHOD FOR PRODUCING SILICON ELECTRODES AS ANODES FOR LITHIUM ION BATTERIES AND A SILICON ELECTRODE PRODUCED USING SAME

Resumen de: US20260024751A1

The invention relates to a method for producing a silicon electrode as an anode for a lithium ion battery, in which an active layer is deposited on a substrate, preferably copper, and then undergoes a rapid tempering, as well as an anode produced using same. The object of the invention of providing a method, which dispenses with the need for a vacuum section for depositing the active material, in particular silicon, for the production of anodes for lithium ion batteries, and thereby allows for an extremely cost-optimised production of almost pure silicon anodes for lithium ion batteries, is achieved in that the active layer is formed from a silicon and metal particle mixture, which is applied to the substrate in a dry process and stabilised in a controlled manner via the rapid tempering to form a semi-porous active layer and fixed to the substrate.

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US20260024801A1

A negative active material for a rechargeable lithium battery includes a core including a SiO2 matrix and a Si grain, and a coating layer continuously or discontinuously coated on the core. The coating layer includes SiC and C, and the peak area ratio of the SiC (111) plane to the Si (111) plane as measured by X-ray diffraction analysis (XRD) using a CuKα ray ranges from about 0.01 to about 0.5.

ELECTROLYTE, SECONDARY BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260024804A1

A secondary battery, an electrolyte, and an electric apparatus. The secondary battery includes a positive electrode plate, an electrolyte, a separator, and a negative electrode current collector, where the electrolyte includes a non-aqueous solvent, an electrolytic salt, and an additive; the non-aqueous solvent includes an ether organic solvent; the additive includes a first additive; and the first additive includes one or more of a phosphite additive or a borate additive.

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

Resumen de: US20260024803A1

Disclosed are electrolytes and rechargeable lithium batteries. The electrolyte includes a non-aqueous organic solvent, a phosphorus-based lithium salt, an imide-based lithium salt, and an additive. The additive includes an aliphatic disocyanate compound.

ELECTRODE TAB BENDING DEVICE AND ELECTRODE TAB BENDING METHOD

Resumen de: US20260024799A1

A device and a method for bending an electrode tab. The device includes a support configured to support an electrode assembly including at least one electrode tab, a guide above the electrode tab and configured to move in a reciprocating manner toward and away from the electrode tab, and a jig below the electrode tab and configured to move in a reciprocating manner toward and away from the electrode tab. Further, the jig is positioned at a distance from the guide in a direction in which the electrode tab protrudes, and the jig is configured to move toward the electrode tab to press and bend the electrode tab.

SODIUM METAL BATTERY AND ELECTROCHEMICAL APPARATUS

Resumen de: US20260024778A1

A sodium metal battery and an electrochemical apparatus, the battery has a positive electrode sheet and a negative electrode sheet, the negative electrode sheet being a negative electrode current collector, and a sodium layer deposited in situ on the negative electrode current collector having a thickness of ≥30 nm after the battery is charged and discharged for the first time. After the battery cell is charged and discharged for the first time, the amount of residual sodium metal is sufficient to uniformly form a sodium deposition layer with a certain thickness on the surface of the negative electrode current collector. The higher nucleation energy required for the deposition of sodium onto the surface of the current collector during subsequent charge-discharge cycles is avoided, the overall deposition overpotential is reduced, and the deposition uniformity of sodium metal and the reversibility of the charge-discharge process are ensured.

Montageverfahren für eine Batteriezelle und Batteriezelle

Resumen de: DE102024206833A1

Es wird ein Montageverfahren für eine Batteriezelle (1) beschrieben. Dabei wird- ein erster rechteckiger Elektrodenstapel (60) und ein zweiter rechteckiger Elektrodenstapel (62) bereitgestellt werden, die an gegenüberliegenden Kanten (64, 66) jeweils einen parallel zur Flächenebene des jeweiligen Elektrodenstapels (60, 62) vorstehenden Kontaktsteg (68, 70) aufweisen,- eine erste Deckelbaugruppe (30), die dem einen Kontaktsteg (68) zugeordnet ist, und eine zweite Deckelbaugruppe (32), die dem anderen Kontaktsteg (70) zugeordnet ist, bereitgestellt werden, wobei jede Deckelbaugruppe (30, 32) eine Stromsammleranschlusseinrichtung (44, 46) aufweist, die im bestimmungsgemäßen Montagezustand parallel zur Flächenebene des jeweiligen Elektrodenstapels (60, 62) ausgerichtete Kontaktflächen (48, 50) für die Kontaktstege (68, 70) aufweist, und- der erste Elektrodenstapel (60) und der zweite Elektrodenstapel (62) von gegenüberliegenden Seiten senkrecht zur Flächenebene mit den Kontaktstegen (68, 70) an die korrespondierenden Kontaktflächen (48, 50) angelegt und an diesen unter Bildung einer Deckel-Stapel-Baugruppe (80) fixiert werden.

BATTERIESCHUTZMITTEL

Nº publicación: DE102025128742A1 22/01/2026

Solicitante:

FORD GLOBAL TECH LLC [US]
Ford Global Technologies, LLC