Resumen de: US20260121112A1
The present invention can provide a method for producing a sulfide solid electrolyte, the method characterized by including: a solution preparation step for preparing a uniform solution that includes at least elemental lithium (Li), elemental tin (Sn), elemental phosphorus (P), and elemental sulfur (S) in an organic solvent; a drying step for removing the organic solvent from the uniform solution to obtain a precursor; and a heat treatment step for heat-treating the precursor to obtain a sulfide solid electrolyte.
Resumen de: US20260121185A1
Systems and methods related to securing batteries to micro-mobility transit vehicles are disclosed. In one embodiment, a method for securing a battery of a micro-mobility transit vehicle includes connecting a first electrical interface of the battery with a second electrical interface of a battery compartment in which to place the battery. The method includes inserting a mechanical interface extending from the battery into a receiving interface defined in a side of the battery compartment of the micro-mobility transit vehicle. The method includes placing the battery within the battery compartment. The method includes rotating a battery compartment door to a closed position. The method includes engaging locking cams at a first end of the battery compartment door to secure the battery compartment door in the closed position and the battery within the battery compartment.
Resumen de: US20260121144A1
Preparing battery-grade graphite including: 1) placing mixed waste electrode materials of a failed lithium-ion battery in a muffle furnace, and performing low-temperature roasting surface modification in an air atmosphere yielding a powder; 2) forming a slurry of the powder, placing the slurry in a flotation machine, and after stirring the slurry, adding a collector and a foaming agent, obtaining a foam product rich in negative electrode graphite) and an ore slurry product rich in positive electrode material) by flotation separation; 3) after filtering and drying the foam product obtained in step (2), performing weak acid washing, obtaining a leached liquid and a leached residue after filtering, and obtaining negative electrode graphite after drying the leached residue; and 4) after filtering and drying the negative electrode graphite of step (3), placing the negative electrode graphite in a high-temperature graphitization furnace and performing oxygen-free heating, to obtain a regenerated graphite product.
Resumen de: US20260121223A1
A separator for a rechargeable lithium battery including a porous substrate and a heat resistant layer on at least one surface of the porous substrate is disclosed. The heat resistant layer includes a crosslinked binder and a filler, the crosslinked binder includes a crosslinked polymer of an urethane-based compound including at least three curable functional groups and having a molecular weight of greater than or equal to about 10,000, and a (meth)acrylate-based compound including at least two curable functional groups and a molecular weight of less than or equal to about 1,000. The filler includes silica particles having a functional group on the surface. The functional group is selected from a (meth)acrylate group, a vinyl group, a hydroxy group, an epoxy group, an oxane group, an oxetane group, an ester group, and an isocyanate group. A rechargeable lithium battery including the separator is also disclosed.
Resumen de: US20260121421A1
A stackable power supply device, container or unit is provided. The power supply device includes an energy conversion module, such as a solar panel. The power supply device includes several power outlets, such as an interface to recharge rechargeable batteries for power tools, an electrical outlet, and a battery to store energy generated by the solar panel. The power supply device is stackable within a modular storage system.
Resumen de: US20260121168A1
The use of a refrigerant including 2,3,3,3-tetrafluoropropene for the cooling of a battery of an electric vehicle including at least one electrochemical cell including a negative electrode, a positive electrode and an electrolyte, the positive electrode including at least one oxide of formula LiNixMnyCozO2 with x+y+z=1, x>y and x>z, or LiNix′Coy′Alz′ with x′+y′+z′=1, x′>y′ and x′>z′, as electrochemically active material.
Resumen de: US20260121063A1
One embodiment of the present application provides a lithium-sulfur battery positive electrode including a positive electrode current collector and a sulfur layer deposited on a surface of the positive electrode current collector, wherein the sulfur layer contains sulfur and/or a sulfur compound which is a main positive electrode active material, a lithium-containing oxide, and a nitrogen-containing organic compound, and the nitrogen-containing organic compound is a nitrogen-containing heterocyclic compound.
Resumen de: US20260118240A1
The present disclosure relates to a method for predicting the occurrence of electrode crack and delamination, and the objective of the present disclosure is to provide a method for predicting the occurrence of electrode crack and delamination, the method comprising: measuring crack force for a dried electrode; and predicting the occurrence of crack and delamination of the electrode on the basis of the measured crack force.
Resumen de: US20260121186A1
A bus bar for a battery module is disclosed. The bus bar has a base and a sidewall. The sidewall includes a folded configuration forming a dual wall. The dual wall includes a center projection. One or more stress-relief features are provided on the sidewall. A plurality of terminal receivers are provided on the base and configured to couple to a plurality of battery terminals. A battery module including a bus bar is also disclosed.
Resumen de: US20260121077A1
0000 A facile method is based on a pack-cementation process using large-area copper foil instead of copper powder. By controlling a pack-cementation time and an amount of alloying element (e.g., aluminum), a hierarchical microporous or nanoporous copper can be created. When coated with tin active material, the hierarchical microporous or nanoporous copper can be used as an advanced lithium-ion battery anode. A coin-cell test exhibited a four-fold higher areal capacity (e.g., 7.4 milliamp-hours per square centimeter without any performance degradation up to 20 cycles) as compared to a traditional graphite anode.
Resumen de: US20260116762A1
A holey thermally expanded-reduced graphene oxide having high specific surface area and pore volume including pores on the surface, a method for preparing the same, and a sulfur-carbon composite and a lithium secondary battery including the same.
Resumen de: US20260116258A1
A battery management system for an electrified vehicle configured to diagnose an abnormal behavior of a battery using a cell balancing function, and a method for diagnosing a battery thereof, are provided. The battery management system comprises a processor that is configured to monitor a battery. The processor is further configured to perform primary cell balancing, when a battery cell voltage deviation meets a cell balancing entry condition, determine whether an abnormal cell voltage deviation occurs after the primary cell balancing, and diagnose a progressive voltage drop using (N+1)th-order cell balancing, when it is determined that the abnormal cell voltage deviation occurs.
Resumen de: US20260121167A1
An energy storage system includes a battery module, a converter, and a cooling device. The cooling unit of the cooling device is connected to the first liquid inlet and the second liquid outlet through pipelines. The bypass structure is configured to communicate the first liquid outlet with the second liquid inlet and can bypass a portion of a cooling liquid discharged from the first liquid outlet to outside the second liquid inlet. Therefore, only a portion of the cooling liquid enters the second cooling structure from the first cooling structure, allowing only a single cooling device to meet the different flow rate requirements of the first cooling structure and the second cooling structure.
Resumen de: US20260121060A1
Provided herein are dry process electrode films, and energy storage devices incorporating the same, including a microparticulate non-fibrillizable binder having certain particle sizes. The electrode films exhibit improved mechanical and processing characteristics. Also provided are methods for processing such microparticulate non-fibrillizable electrode film binders, and for incorporating the microparticulate non-fibrillizable binders in electrode films.
Resumen de: US20260115883A1
An electric ratchet wrench as one example of the ratchet wrench includes an electric motor, a holder that rotatably holds a socket via a one-way clutch mechanism, and a spindle configured to convert a driving force from the motor into a reciprocating rotation motion of the holder. A space is provided between the socket and the holder. The space includes large interval portions and small interval portions. The small interval portions are adjacent to the large interval portions in a rotation direction (lock direction) of the socket and have distances smaller than distances of the large interval portions. Additionally, the one-way clutch mechanism includes columnar locking pins disposed between the spaces and have a diameter with a size equal to or less than the distances of the large interval portions and exceeding the distances of the small interval portions.
Resumen de: US20260121018A1
A positive electrode material, including a lithium manganese oxide, where a Raman spectrum of the positive electrode material has a characteristic peak 1 within a range of 401 cm−1 to 410 cm−1 and a characteristic peak 2 within a range of 598 cm−1 to 611 cm−1. The positive electrode material has high charge gram capacity and excellent structural stability, thereby improving the cycling and storage performance of the electrochemical apparatus while greatly increasing the energy density of the electrochemical apparatus.
Resumen de: US20260118828A1
A device capable of being used for a long time is achieved. A power supply, a connection method of a power supply, or a connecting member, for easy attachment and detachment and non-detachment when in use, is provided. A power supply, a connection method of a power supply, or a connecting member for easy replacement is provided. A highly designed power supply is provided. Power from a battery is supplied to an electronic device through a connecting member including a pipe, a spring, and a pair of pivots. The pair of pivots are electrically insulated from each other, and electrically connected to any one of a pair of electrodes of the battery. The electronic device into which the pair of pivots are inserted includes a pair of bearings capable of receiving power.
Resumen de: US20260121255A1
The present application relates to a secondary battery including a first adapter piece and an electrode assembly, the electrode assembly including a first electrode plate, a second electrode plate, a plurality of electrode tabs and a second electrode tab, all of the first electrode tabs are stacked to form a first multi-tab structure and connected to the first adapter piece, and the electrode assembly comprises a first adapter member; the first adapter member comprises the first multi-tab structure and the first adapter piece; in a direction parallel to the first electrode plate, there is at most one layer of the first adapter member. The present application may effectively reduce the existing waste of the top space caused by bending the electrode tabs, and is more stable for the bending effect, thereby improving the energy density of the battery.
Resumen de: US20260114517A1
An electronic cigarette or vaporizer may include a shell and a cartomizer receivable within a chamber within a portion of the shell. A basin may be included in the cartomizer to hold a vaporizable fluid, dry substance, or other vaporizable substance such as a wax. A heating element may be provided within the basin which may have a flexible non-conductive material and a flexible conductive material.
Resumen de: US20260121082A1
Systems and methods drawn to an electrochemical cell comprising a low temperature ionic liquid comprising positive ions and negative ions and a performance enhancing additive added to the low temperature ionic liquid. The additive dissolves in the ionic liquid to form cations, which are coordinated with one or more negative ions forming ion complexes. The electrochemical cell also includes an air electrode configured to absorb and reduce oxygen. The ion complexes improve oxygen reduction thermodynamics and/or kinetics relative to the ionic liquid without the additive.
Resumen de: US20260121049A1
An electrode assembly includes a positive electrode material layer, where the positive electrode material layer of the electrode assembly includes a first positive electrode material LiMnxFe1-xPO4, a single-side thickness of the positive electrode material layer is T1 μm, and 22≤T1≤110. A length of a positive electrode plate is L1 mm. The electrode assembly further includes at least one positive electrode tab. When there is one positive electrode tab, the positive electrode tab is a centrally disposed tab structure; or when there are multiple positive electrode tabs, a ratio of the number of the positive electrode tabs to L1 is B, and 0.002≤B≤0.01.
Resumen de: US20260118440A1
The provided is a high-efficiency grading method and system for lithium-ion cells, and a storage medium. The provided aims to solve the problem of excessively long capacity grading time for lithium-ion cells. The high-efficiency grading method includes: obtaining discharge capacities C1, discharge endpoint voltages V1, rebound voltages V2, and remaining capacities C2 of lithium-ion cells; subjecting data of the obtained discharge capacities C1 or discharge endpoint voltages V1 to slicing and classification processing; plotting a scatter plot of the remaining capacities C2 against the rebound voltages V2 according to the remaining capacities C2 and corresponding rebound voltages V2 of the lithium-ion cells, performing curve fitting, and deriving remaining capacity prediction model equations; and calculating full discharge capacities of a new batch of lithium-ion cells. The provided omits the full discharge step in the conventional grading process, greatly shortening the capacity grading time and improving production efficiency.
Resumen de: US20260116777A1
A high-performance lithium manganese oxide cathode material with a low oxygen vacancy proportion is provided. According to characterization by electron paramagnetic resonance spectroscopy (EPR), an oxygen vacancy content in the high-performance lithium manganese oxide cathode material is 10 ppm to 10,000 ppm. A preparation method of the cathode material includes the following steps: thoroughly mixing a Li source compound, a Mn source compound, and a fluxing agent element-containing compound, and conducting first calcination in an air atmosphere to produce a first calcined product; mixing the first calcined product with a monovalent metal ion-containing compound, and conducting second calcination in an air atmosphere, where a temperature of the second calcination is lower than a temperature of the first calcination; and cooling and crushing.
Resumen de: US20260117411A1
A process for producing a graphite-containing metal oxide electrode includes: a) providing an electrolysis cell having an electrode, a further electrode and an aqueous and/or non-aqueous carbonyl-and cyano-free solvent, b) introducing black matter and a proton source into the solvent present in the electrolysis cell, where the black matter includes graphite-supported precious metal-free metal oxides, and c) applying a voltage to the electrode and the further electrode, such that the precious metal-free metal oxides and graphite provided by means of the black matter are deposited on the electrode to produce a graphite-containing metal oxide coating on the electrode for formation of the graphite-containing metal oxide electrode. The graphite-containing metal oxide electrode is used for production of hydrogen and/or oxygen by (photo)electrochemical water splitting and to an electrolysis cell for production of hydrogen and oxygen by (photo)electrochemical water splitting.
Nº publicación: US20260121181A1 30/04/2026
Solicitante:
NINGDE AMPEREX TECH LIMITED [CN]
Ningde Amperex Technology Limited
Resumen de: US20260121181A1
A secondary battery includes a housing, an electrode assembly disposed in the housing, and a first conductive plate. The electrode assembly is a stacked structure. The electrode assembly includes a first electrode plate, a separator, and a second electrode plate that are stacked sequentially in a first direction. The first conductive plate is connected to the first electrode plate. The first conductive plate extends out of the housing along a second direction perpendicular to the first direction. The first electrode plate includes a first outer electrode plate located at an outermost layer of the electrode assembly. When viewed in a third direction perpendicular to both the first direction and the second direction, the first outer electrode plate includes a first region and a second region connected in the second direction. When viewed in the third direction, the first region includes a first end connected to the second region.