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BATTERY PACK AND METHOD FOR MANUFACTURING SAME

Resumen de: US20260081277A1

A secondary battery cell can be fixed to a battery holder with high reliability. Battery pack 100 includes a plurality of secondary battery cells 1 and battery holder 20 including a plurality of storage tubes 22 that respectively hold the plurality of secondary battery cells 1. Battery holder 20 is divided into at least first divided holder 21A and second divided holder 21B in the length direction of secondary battery cell 1, and first storage tube 22A of first divided holder 21A and second storage tube 22B of second divided holder 21B are joined to form a cell storage space for storing secondary battery cell 1. At least a part of second storage tube 22B has recess 24 formed on at least a part of the inner surface thereof, and adhesive 50 is interposed between recess 24 of storage tube 22 and secondary battery cell 1.

MODULE INTERFACE DEVICE FOR BATTERY MODULES FEATURING CELL BALANCING AND ISOLATION

Resumen de: US20260081243A1

A module interface device for a multi-cell battery module comprises a cathode bus connectable to a cathode terminal and an anode bus connectable to an anode terminal of the battery module, and a set of one or more inter-cell taps connectable to respective inter-cell electrical interconnectors that interconnect neighboring pairs of cells of the battery module. The module interface devices comprises a cell balancing circuit that includes: an electrically conductive pathway that joins the cathode bus with the anode bus, a set of multiple resistive-capacitive elements arranged along the electrically conductive pathway, and a set of one or more switches in which a respective switch is located along each inter-cell tap. Each inter-cell tap joins the electrically conductive pathway at a respective location between a different neighboring pair of resistive-capacitive elements.

ROTOR AND METHOD FOR PRODUCING SAME

Resumen de: US20260081275A1

A rotator includes a rotating portion and a device fixed to the rotating portion, and the device includes a substrate and a flat secondary battery connected to the substrate via a terminal. The secondary battery includes an exterior body and a positive electrode and a negative electrode disposed in the exterior body. The exterior body includes a positive electrode can and a negative electrode can. The flat secondary battery is disposed in such a manner that one of the positive electrode can and the negative electrode can having a larger expansion amount on a central axis of the exterior body than the other of the positive electrode can and the negative electrode can faces the substrate, when the flat secondary battery expands due to a high temperature in a charging state of the flat secondary battery.

BATTERY MANAGEMENT SYSTEM AND METHOD FOR VEHICLE USING BATTERY TEMPERATURE PREDICTION MODEL

Resumen de: US20260081242A1

A battery management system using a battery temperature prediction model includes: a transmission/reception device for receiving information of a vehicle, a temperature control device for requesting prediction of a battery temperature at a destination arrival time point by using destination information and perform battery conditioning control by using a predicted battery temperature value according to a request result, and a temperature prediction device for outputting the predicted battery temperature value at the destination arrival time point by inputting the information to a battery temperature prediction model, which is provided in advance, in accordance with the request for the prediction of the battery temperature.

LITHIUM ION BATTERY

Resumen de: US20260081138A1

Disclosed is a lithium ion battery. The lithium ion battery includes a positive electrode plate, a negative electrode plate and a separator. The positive electrode plate, the separator and the negative electrode plate are stacked successively and then wound from inside to outside. The positive electrode plate includes a positive electrode current collector. At least one functional surface of the positive electrode current collector is provided with a protective layer. A surface of the protective layer away from the positive electrode current collector is provided with a positive electrode active layer. A length of the protective layer is greater than a length of the positive electrode active layer in a winding direction of the positive electrode current collector. According to the present application, by increasing a protection area of the protective layer for a positive electrode current collector, safety performance of the lithium ion battery is improved.

CURED PRODUCT FOR LITHIUM ION SECONDARY BATTERIES, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY

Resumen de: US20260081166A1

A cured product for lithium ion secondary batteries includes water-soluble polymers, a crosslinking agent and cellulose nanofibers. The crosslinking agent crosslinks different water-soluble polymers or the water-soluble polymer and the cellulose nanofibers. When wide-angle X-ray scattering (WAXS) measurement is performed using CuKα rays, the diffraction angle 2θ has a peak in a range of 16° or more and 21° or less. The half-value width of the peak is 5.5° or less.

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

Resumen de: US20260081164A1

A binder composition for a non-aqueous secondary battery electrode contains a polymer X that includes an acidic group-containing monomer unit in a proportion of not less than 3 mass % and not more than 20 mass % and a repeating unit derived from an unsaturated monomer A in a proportion of not less than 5 mass % and less than 50 mass %. The unsaturated monomer A has a solubility in water of not less than 1 g/100 mL and not more than 15 g/100 mL and has a glass-transition temperature of 40° C. or lower.

METHODS OF PREPARING ELECTRODES AND ELECTROCHEMICAL DEVICES CONTAINING THE ELECTRODE

Resumen de: US20260081140A1

Provided herein are methods of preparing electrodes. The method comprises: combining an electroactive material, an electron conductive material, an electrolyte, and a polymeric binder, to form an active mixture; and shaping the active mixture to form an electrode. In some embodiments, the electrolyte comprises a salt and a nonaqueous solvent of the salt. In some embodiments, the solvent of the salt does not dissolve the polymeric binder. In some embodiments, the method does not include a drying step to remove the solvent and the nonaqueous solvent remains in the active mixture and the electrode. In some embodiments, the electrode as prepared has an areal capacity of at least 2 mAh/cm2 and a thickness of at least 30 μm.

ANODE MATERIAL, ANODE AND ELECTROCHEMICAL DEVICE COMPRISING THE ANODE MATERIAL

Resumen de: US20260081158A1

An anode material having 0.8≤0.06×(Dv50)2−2.5×Dv50+Dv99≤12, where Dv50 represents a numerical value of a particle size measured at a cumulative volume of 50% in a volume-based particle size distribution of the anode material, and Dv99 represents a numerical value of a particle size measured at a cumulative volume of 99% in the volume-based particle size distribution of the anode material, wherein Dv50 and Dv99 are expressed in μm. The anode material is capable of significantly improving the rate performance of electrochemical devices.

Air circulation for heat transfer in a material handling vehicle battery

Resumen de: AU2025220742A1

An industrial battery design for use in a material handling vehicle. The battery includes a metal base plate, a battery case secured to the metal base plate to form a sealed enclosure for the battery, a row of one or more battery cells disposed above the metal base plate, and a top tray disposed above the row of battery cells. The top tray includes a first fan to blow air in a first direction within the battery case and a second fan to blow air in a second direction within the battery case, where the second direction is opposite the first direction. An industrial battery design for use in a material handling vehicle. The battery includes a metal base plate, a battery case secured to the metal base plate to form a sealed enclosure for the battery, a row of one or more battery cells disposed above the metal base plate, and a top tray disposed above the row of battery cells. The top tray includes a first fan to blow air in a first direction within the battery case and a second fan to blow air in a second direction within the battery case, where the second direction is opposite the first direction. ug u g Ve lo ci ty m s ^- 1 i.O Six 9.0m s^-1 Velocity ug u g e l o c i t y m s ^ -

BLADE BATTERY AND BATTERY PACK HAVING SAME

Resumen de: AU2025308129A1

Disclosed are a blade battery and a battery pack having same. The blade battery comprises at least one positive electrode sheet, a plurality of negative electrode sheets, a positive electrode cover plate and a negative electrode cover plate. A first tab and a second tab are respectively provided on two adjacent edges of the positive electrode sheet. The plurality of negative electrode sheets respectively cover two opposite sides of the positive electrode sheet, a third tab and a fourth tab are respectively provided on two adjacent edges of each negative electrode sheet, the positive electrode sheet and the negative electrode sheets are stacked, with the edges thereof flush with each other, the first tab and the third tabs are respectively located on two opposite sides of the blade battery, and the second tab and the fourth tabs are respectively located on two opposite sides of the blade battery. The positive electrode cover plate is located on two adjacent edges of the blade battery, and the positive electrode cover plate is connected to the first tab and the second tab to form a positive electrode. The negative electrode cover plate is located on two adjacent edges of the blade battery, and the negative electrode cover plate is connected to the third tabs and the fourth tabs to form a negative electrode.

SODIUM ION BATTERY POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: AU2024358646A1

A sodium ion battery positive electrode material, a preparation method therefor, and a use thereof, relating to the technical field of sodium ion batteries. The sodium ion battery positive electrode material comprises a polyanionic iron-manganese-based inner core material and a fast ion conductor layer coating the outer surface of the polyanionic iron-manganese-based inner core material; the polyanionic iron-manganese-based inner core material comprises iron and manganese, and the iron and the manganese are non-uniformly distributed in the polyanionic iron-manganese-based inner core material; in the centre of the polyanionic iron-manganese-based inner core material, the manganese content is higher than the iron content; and in the surface layer of the polyanionic iron-manganese-based inner core material, the iron content is higher than the manganese content. The uneven component distribution of the iron and manganese in the inner core material of the positive electrode material can effectively relieve the risk of structural collapse caused by metal ion migration during cycling; the fast ion conductor coating layer reduces the side reactions caused by electrolyte corrosion; and the problems of low capacity, fast attenuation, and low energy density of traditional single-phase materials are effectively solved.

BATTERY PACK WITH CELL MODULE ASSEMBLIES

Resumen de: US20260081244A1

A cell module assembly includes battery cells and a controller. The controller is programmed to receive useful life data for a useful life indicator of the battery cells, save the life data to memory to create a life data history, determine a life measurement based on the life data history, compare the life measurement to a first end of life threshold, determine if the life measurement has met the first end of life threshold, provide a first end of life output indicating that the life measurement has met the first end of life threshold, compare the life measurement to a second end of life threshold, determine if the life measurement has met the second end of life threshold, and provide a second end of life output indicating that the life measurement has met the second end of life threshold.

SYSTEMS AND METHODS FOR INTENTIONAL OPENING OF MODULAR BATTERY CIRCUIT PROTECTION

Resumen de: US20260081239A1

A battery system includes a plurality of battery packs and a battery management system (BMS). The battery packs include a first battery pack and a second battery pack. The first battery pack includes a first plurality of battery cells, a first fuse, and first terminals. The second battery pack includes a second plurality of battery cells, a second fuse, second terminals, and a short circuit path extending between the second terminals. The second terminals are electrically connected in parallel with the first terminals. The BMS is configured to monitor operational parameters of the battery packs, detect a fault condition in at least one of the battery packs; and initiate a short circuit across the second terminals of the second battery pack via the short circuit path. The short circuit results in a current that causes the first fuse or second fuse to blow to electrically isolate the battery packs.

BATTERY MANAGEMENT METHOD, BATTERY MANAGEMENT APPARATUS, AND ELECTRONIC DEVICE

Resumen de: US20260081240A1

The present disclosure relates to a battery management method, a battery management apparatus, and an electronic device. The battery management method includes: acquiring a current power level of a battery for the electronic device when the electronic device receives a wake-up signal; determining an operation mode of the electronic device according to the current power level of the battery, wherein a maximum power in the determined operation mode is supportable by the current power level of the battery; and controlling the electronic device to operate in the determined operation mode.

SEPARATOR, PREPARATION METHOD THEREOF, SECONDARY BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260081238A1

Embodiments of the present application provide a separator, a preparation method thereof, a secondary battery, and an electric apparatus. The separator includes a first base film, a coating, and a second base film, where the coating is disposed between the first base film and the second base film, the coating includes an ion-trapping agent, and a reduction potential of the ion-trapping agent relative to lithium metal is 0 V to 2 V. A secondary battery containing the separator exhibits improved cycling performance.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US20260081235A1

A secondary battery comprises: an electrode body obtained by winding a negative electrode in which a negative electrode mixture layer is formed on a negative electrode core body and a positive electrode. The secondary battery is characterized in that: the negative electrode has, at the winding direction inner-end side of the electrode body, a non-facing part which does not face the positive electrode with the separator therebetween; the non-facing part has a mixture non-facing part in which the negative electrode mixture layer is formed on at least one surface of the negative electrode core body, from the winding direction outer end of the non-facing part and toward the winding direction inner side; and the average value of a mixture surface distance which is between the mixture non-facing part and the negative electrode positioned one turn outward of the mixture non-facing part is not less than 90 μm.

Method of Preparing Positive Electrode Material for Lithium Secondary Battery and Positive Electrode Material for Lithium Secondary Battery Prepared Thereby

Resumen de: US20260081137A1

A positive electrode material includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material has an average particle diameter (D50) of 10 μm to 30 μm and the second positive electrode active material has a smaller average particle diameter than the first positive electrode active material. An equivalent weight of lithium in the first positive electrode active material and an equivalent weight of lithium in the second positive electrode active material are different.

ZINC ELECTRODE FOR ALKALINE NICKEL-ZINC BATTERY AND PREPARATION METHOD THEREFOR

Resumen de: US20260081133A1

Disclosed is a preparation method for a zinc electrode, including: a step of dissolving a water-soluble calcium salt of organic acid in deionized water to obtain a first mixed solution; a step of preparing a negative electrode slurry by mixing the first mixed solution, a water-soluble binder, a thickener, and an active material including zinc oxide; and a step of preparing the zinc electrode by applying the slurry to a surface of a current collector and baking it at a high temperature. Further disclosed is a zinc electrode prepared by the preparation method, and use of the zinc electrode in an alkaline nickel-zinc battery. The zinc electrode prepared in the present disclosure can not only effectively improve the deformation thereof and solve the growth problem of zinc dendrites, but also contribute to increasing the utilization rate of an active material of the zinc electrode and improving the cycle performance of the alkaline nickel-zinc battery.

Polymer Coating Process For Electrode Assemblies Incorporating Ion Exchange Materials

Resumen de: US20260081162A1

A method of manufacturing a battery cell includes forming an electrode and coating the electrode with an n-mer solution. The n-mer coated electrode is treated by heat, ultraviolet, or cross-linking agents to polymerize the n-mer and form an ion exchange material that covers at least some of the electrode.

SULFUR ELECTRODE AND METHOD FOR MANUFACTURING SAME

Resumen de: US20260081159A1

A sulfur electrode and a method for manufacturing the same are disclosed. The method for manufacturing the sulfur electrode includes: growing carbon fibers on a surface of stainless steel; connecting the stainless steel on which the carbon fibers are grown to a cathode of a current controller in an aqueous solution in which sulfur ions are dissolved; and forming a sulfur thin film on each of surfaces of the carbon fibers grown on the surface of the stainless steel and in each of spaces between the carbon fibers by controlling a current of the current controller.

LAMINATING DEVICE FOR LAMINATING MULTILAYER ENDLESS WEBS FOR PRODUCING ENERGY CELLS

Resumen de: US20260081135A1

The invention relates to a laminating apparatus for a multilayer continuous web composed of at least one separator web and at least one electrode for producing energy cells, with a pressing device which laminates the multilayer continuous web by exerting a compressive force, wherein the pressing device has two pressing surfaces, with which it comes into contact with different sides of the continuous web, and the pressing surfaces are temperature-controlled differently.

CONTAINER MODULE

Resumen de: AU2024404412A1

A container module is disclosed. The container module according to one embodiment of the present invention may comprise: a case providing an inner space and including a rear panel; a battery array, which is positioned inside the case and includes a plurality of battery packs stacked in the vertical direction; a cooling part for providing cooling air to the inside of the case; and a duct, which is positioned inside the case and allows the cooling part to communicate with the gap between the battery array and the rear panel.

PURIFICATION OF ALKALINE ELECTROLYTES

Resumen de: AU2024322570A1

A method of purifying an alkaline electrolyte includes contacting the alkaline electrolyte with an aluminum compound to provide a purified alkaline electrolyte. The alkaline electrolyte includes a metal hydroxide, a compound comprising aluminum, silicon, or a combination thereof, and a solvent. The method can be particularly advantageous when used with a method of processing an iron-containing feedstock.

PACKAGING BAG, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Nº publicación: US20260081252A1 19/03/2026

Solicitante:

NINGDE AMPEREX TECH LIMITED [CN]
DONGGUAN AMPEREX TECH LIMITED [CN]
Ningde Amperex Technology Limited,
Dongguan Amperex Technology Limited

Resumen de: US20260081252A1

This application discloses a packaging bag, a secondary battery, and an electronic device, where the packaging bag includes an encapsulation layer, a metal layer, an adhesive layer, and a packaging layer arranged in a stacked manner. The adhesive layer includes a first thermally conductive material, where a mass percentage of the first thermally conductive material in the adhesive layer is denoted as G1, and 1%≤G1≤30%. By incorporating the first thermally conductive material into the adhesive layer, heat generated during operation of the secondary battery can be more effectively conducted away, mitigating temperature rise inside the secondary battery, thereby improving the performance and safety of the secondary battery. Additionally, this enables more uniform heat distribution between the interior of the secondary battery and the packaging bag, reducing localized overheating and extending the service life of the secondary battery.