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ASSISTED MULTI-BATTERY PRE-CHARGE STRATEGY

Resumen de: US2025296463A1

A computer system has processing circuitry to identify one or more electrical energy storage packs that have a voltage higher than a voltage threshold related to a voltage connection window of a target electrical energy storage pack, close the pre-charge contactor of the one or more identified electrical energy storage packs to pre-charge the voltage bus using the one or more connected electrical energy storage packs at least until the voltage of the voltage bus exceeds the voltage threshold of the target pack, open the pre-charge contactor of the one or more connected electrical energy storage packs, and close the main contactor of the target electrical energy storage pack to connect the target electrical energy storage pack to the voltage bus.

BATTERY SWAPPING STATION

Resumen de: US2025296468A1

The present application is capable of providing a battery swapping station (BSS) and a method of using the same. The present application is capable of providing a battery swapping station and a method of using the same in which the problems of communication errors caused by frequent battery replacement in a battery swapping station or the like or an emergency state can be solved by applying two types of wireless communication means using different frequency bands, and accurate and efficient confirmation and handling of the information on the emergency state are enabled.

LEAD ACID BATTERY MANAGEMENT SYSTEM

Resumen de: AU2024353534A1

A Lead-Acid Battery Management System (BMS) and a method for operating a BMS for a battery system comprising a plurality of groups of at least one lead acid battery, the battery management system comprising: at least one control device configured to electrically integrate and segregate each of the batteries from the string, and a controller configured to control the control device to independently control the charging and discharging of each of the batteries. In some cases the controller is configured to determine an input power available to charge the battery system, determine, based on the determined input power, that at least one of the groups of batteries can charge above a charging threshold; and selectively charge at least one of the groups of at least one battery. In some cases the BMS is configured overcharge the batteries independently. In some cases the BMS is configured to modify the discharging of the at least one battery based in a determined charge characteristic.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: WO2025194664A1

A battery cell (20), a battery (100), and an electrical device, relating to the field of batteries. The battery cell (20) comprises a casing (21), an electrode assembly (22), a current collecting member (23), and a pressure relief component (24); the casing (21) comprises an accommodating cavity, the electrode assembly (22) is located in the accommodating cavity, the electrode assembly (22) comprises a main body portion (221) and a tab (222) protruding from the main body portion (221), and the main body portion (221) has a central hole (2211) extending in the height direction of the battery cell (20) and running through the electrode assembly (22); the current collecting member (23) is located in the accommodating cavity and is electrically connected to the tab (222); the pressure relief component (24) is connected to the casing (21), and the side of the pressure relief component (24) facing the electrode assembly (22) is in fluid communication with the central hole (2211); the current collecting member (23) comprises at least one fluid channel (2313), and the fluid channel (2313) is configured to make a gap between the electrode assembly (22) and the casing (21) be in fluid communication with the central hole (2211). By providing the fluid channel (2313) in the current collecting member (23), a guiding effect can be provided for gas flow inside the battery cell (20), thereby facilitating guiding gas to the position of the pressure relief component (24) and achieving smooth g

LITHIUM-ION BATTERY AND ELECTRIC DEVICE

Resumen de: WO2025194656A1

A lithium-ion battery and an electric device. The electrolyte filling ratio a of the lithium-ion battery satisfies: 2.2 g/Ah≤a≤2.8 g/Ah. The lithium-ion battery comprises an electrolyte, which comprises a first solvent and an additive, wherein the viscosity η of the first solvent satisfies: η≤0.6 mPa/s; the additive comprises at least one of vinylene carbonate, fluoroethylene carbonate, vinyl ethylene carbonate, ethylene sulfate and 1,3-propane sultone; and the mass content m of the additive in the electrolyte satisfies: 5%≤m≤12%. The electrolyte filling ratio is small, and the lithium-ion battery having the electrolyte that comprises a carboxylic ester solvent, an ether solvent and/or a nitrile solvent has good cycle performance.

TERNARY POSITIVE ELECTRODE MATERIAL MODIFIED WITH GLASSY METAL-ORGANIC FRAMEWORK, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2025194592A1

A ternary positive electrode material modified with a glassy metal-organic framework, and a preparation method therefor and the use thereof. The ternary positive electrode material modified with a glassy metal-organic framework is obtained by grinding and mixing a ternary positive electrode material and a metal-organic framework, and then subjecting same to a melt quenching treatment under a protective atmosphere. Forming a crack-free glassy metal-organic framework containing nano/sub-nano pores on a surface of the ternary positive electrode material can significantly improve the stability of the ternary positive material, alleviate the dissolution of transition metals, and ultimately improve the electrochemical performance of batteries and prolong the service life of the batteries.

SAFETY BATTERY APPARATUS

Resumen de: US2025300315A1

A safety battery apparatus comprising a battery housing within which is located one or more rechargeable electrochemical cells, and a heat safety apparatus associated with the battery housing, wherein the heat safety apparatus includes a heat detection apparatus and an electrical switch that forms part of an electrical circuit to which the electrochemical cell(s) are connected and/or forms part of an alarm circuit; the heat detection apparatus comprises a frangible bulb filled with a liquid or gas that is configured to shatter or break at a pre-determined temperature as a result of thermal expansion of the liquid or gas within the bulb, and a biasing element; the heat detection apparatus is operatively coupled to the electrical switch; the switch has an isolation configuration in which the switch isolates the electrical circuit from the electrochemical cells and/or activates the alarm circuit if a pre-determined threshold temperature within the battery housing is exceeded; the biasing element exerts a biasing force which urges the heat detection apparatus to configure the switch in its isolation configuration; the frangible bulb exerts a counterbalance force against the biasing force; and wherein the counterbalance force is removed when the frangible bulb shatters or breaks.

SECONDARY BATTERY

Resumen de: US2025300282A1

A secondary battery includes: an electrode assembly; a case body accommodating the electrode assembly, the case body comprising an open inlet; a cover member configured to shield the inlet of the case body; and an adhesive part between the case body and the cover member, the adhesive part comprising an adhesive component to secure the cover member to an outer side of the case body, wherein the case body and the cover member are made of different materials.

SECONDARY BATTERY

Resumen de: US2025300275A1

The present invention relates to a secondary battery which is charged and discharged by oxidizing and reducing metal ions dissolved in an electrolyte. The secondary battery according to an embodiment of the present invention includes: a plurality of secondary battery modules; a container accommodating the plurality of secondary battery modules therein; and an air-conditioning unit disposed on the plurality of secondary battery modules to cool, heat, or ventilate the plurality of secondary battery modules.

ELECTROCHEMICAL CELL

Resumen de: US2025300280A1

A rechargeable electrochemical cell (10) comprises an anode compartment (14) and a cathode compartment (15), the compartments being enclosed in part by metal plates (11, 12) that define end faces of the cell (10), the two compartments (14, 15) being separated by an impermeable, ion-conducting electrolyte element (13). The cell (10) is a molten sodium/metal chloride cell, and the plate (12) enclosing the cathode compartment defines a slightly concave end face surrounded by a flat rim. The volume change of the cathodic materials as the cell is heated up to its operating temperature are accommodated by flattening of the concave end face, so the overall thickness of the cell (10) does not change.

HEAT EXCHANGER AND BATTERY PACK

Resumen de: US2025300274A1

A heat exchanger includes a bag body including, in an interior of the bag body, a heat exchange path through which a heat exchange medium flows; and a base body including, in an interior of the base body, a supply path that communicates with one end of the heat exchange path and is configured to supply the heat exchange medium to the heat exchange path, and a recovery path that communicates with another end of the heat exchange path and is configured to recover the heat exchange medium. The bag body includes a front sheet, a rear sheet opposite to the front sheet, an inflow port through which the heat exchange medium flows in, an outflow port through which the heat exchange medium flows out, and an occlusion prevention member provided over a surface of the front sheet.

CATHODE ACTIVE MATERIAL HAVING SPINEL STRUCTURE

Resumen de: WO2024218282A1

The present invention relates to a cathode active material comprising: (a) first crystal particles, wherein the first crystal particles have a spinel structure and are of the formula LixNiyMn3-x-y-zDzO4, wherein 0.95 ≤ x ≤1.05; and 0.45 ≤ y ≤ 0.50, and 0 ≤ z ≤ 0.20, and wherein D is a dopant selected from B, N, F, Mg, Al, Nb, Si, P, La, S, Ca, Ti, Cr, Fe, Co, Cu, Zn, Zr, Mo, Sn, W and mixtures thereof, and the first crystal particles have a particle size of no greater than 3 μm measured as the arithmetic mean value of the minimum Feret diameter of the particles measured using scanning electron microscopy, (b) second crystal particles, wherein the second crystal particles comprise material having a spinel structure and which is of the formula Lix'Niy'Mn3-x'-y'-z'D'z'O4, wherein: 0.95 ≤ x' ≤ 1.05; 0.43 ≤ y' ≤ 0.47, and 0 ≤ z'≤ 0.20, and wherein D' is a dopant selected from B, N, F, Mg, Al, Nb, Si, P, La, S, Ca, Ti, Cr, Fe, Co, Cu, Zn, Zr, Mo, Sn, W and mixtures thereof, and the second crystal particles have an average particle size of at least 3 times that of the average particle size of the first crystal particles, measured as the arithmetic mean value of the minimum Feret diameter of the particles measured using scanning electron microscopy.

ENERGY STORAGE BOX

Resumen de: AU2024203654A1

The present application relates to the technical field of thermal management of energy storage boxes, and provides an energy storage box, including a box body, a battery pack, a power conversion system, and a thermal management system. The box body includes a battery cabin, the battery pack and the power conversion system are 5 located in the battery cabin. The thermal management system has a first loop and a second loop. The first loop dissipates heat of a cooling liquid in a first liquid path of the battery pack through a refrigerant. The second loop is in communication with a second liquid path of the power conversion system so as to dissipate heat of the power conversion system by a cooling liquid. The cooling liquid in the second liquid path 10 may also flow to the first liquid path through a solenoid valve so as to form compensation for heat dissipation of the first liquid path. In this way, the thermal management system achieves the unification of heat dissipation manners of the energy storage box, the integration level of the energy storage box is improved, the overall structure of the energy storage box is reduced, and the space occupation ratio of the 15 energy storage box is reduced, thereby improving the energy density and energy storage efficiency of the station. The present application relates to the technical field of thermal management of energy storage boxes, and provides an energy storage box, including a box body, a battery pack, a power conversion system,

RECHARGEABLE COPPER-ZINC CELL

Resumen de: AU2024217972A1

A copper-zinc battery cell including a first pan and second pan, each of the pans forming a well for receiving an electrolyte. The battery cell may include a membrane comprising a 2D material composite which separates the respective wells of the first and second pan. The battery cell allows for scaling of a resultant battery pack for various applications.

BATTERY CASE

Resumen de: AU2023430385A1

Disclosed in the present application is a battery case, comprising at least: a fixing base, which is provided with a protrusion or a sealing frame on a top face thereof; at least one battery cell, which is arranged on the fixing base, the protrusion or the sealing frame being provided on a top face and a bottom face of the battery cell, respectively; a sealing member, which is located between a surface on which the protrusion is located and the sealing frame, and is pressed by the surface on which the protrusion is located and the sealing frame; and a switch module, which is arranged on the battery cell, the protrusion or the sealing frame being provided on the surface of the switch module that is in contact with the battery cell, wherein the fixing base and/or the switch module abut against the battery cell by means of the protrusion or the sealing frame. The battery case disclosed in the present application has an improved waterproof sealing performance.

ELECTRODE SHEET STRUCTURE OF BATTERY, BATTERY, AND PREPARATION METHOD FOR ELECTRODE SHEET

Resumen de: WO2025194600A1

An electrode sheet structure of a battery, comprising a metal layer. A transmission attenuation layer is provided on the edge of a first end portion of the metal layer; an active material layer is provided on the surface of the transmission attenuation layer away from the metal layer; the resistance value of the active material layer is R1; and the total resistance value of the metal layer, the active material layer, and the transmission attenuation layer is R2, and 1.3≤R2/R1≤1.8. The transmission attenuation layer arranged between the metal layer and the active material layer reduces the transmission rate of electrons and inhibits the deintercalation speed of lithium ions, so that the safety problems such as lithium precipitation at the edge of electrode sheets, and ultra-thick head and tail parts of the electrode sheets are solved, and it is ensured that lithium precipitation does not occur at the head and tail parts of the electrode sheets, thereby improving the charging and discharging safety of the battery.

BATTERY CASE AND BATTERY PACK

Resumen de: WO2025194641A1

A battery case (011) and a battery pack (001), relating to the technical field of batteries. The battery case (011) comprises a case cover (111), a case body (112), a partition plate (1131) and two longitudinal beams (114); the case cover (111) covers the case body (112) so as to define a mounting cavity; and the mounting cavity has two first side walls (1141) arranged opposite to each other. The two longitudinal beams (114) are respectively arranged on the two first side walls (1141); two ends of the partition plate (1131) are respectively in lap joint with the two longitudinal beams (114); the partition plate (1131) divides the mounting cavity into a lower-layer module mounting cavity (1123) and an upper-layer module mounting cavity (1124); and the side of the longitudinal beams (114) close to the case cover (111) is configured to abut against an upper-layer battery module (012).

HARD CARBON MATERIAL FOR STORING ALKALI METAL IONS AND PREPARATION METHOD THEREFOR

Resumen de: WO2025194309A1

Disclosed in the present invention are a hard carbon material for storing alkali metal ions and a preparation method therefor. Specifically, the hydrogen content of the hard carbon material for storing alkali metal ions is less than 2 wt%; the range of order is 0-20 nm; the interlayer spacing is greater than 0.36 nm; and the ratio of the intensities of the D-band and G-band of the Raman spectrum thereof is between 1.0 and 1.3. In particular, the operating temperature of the preparation method of the present invention is lower than 1800°C, and therefore the method is an energy-saving process.

BATTERY PACK

Resumen de: WO2025194577A1

The present application provides a battery pack, comprising: a battery module; and a battery management assembly connected to the battery module, wherein the battery management assembly comprises a printed circuit board, a positive busbar, a negative busbar, and a flexible circuit board; one end of the positive busbar and one end of the negative busbar are connected to the battery module, and the other ends of the positive busbar and the negative busbar are connected to the printed circuit board; and the flexible circuit board is connected to the positive busbar, the negative busbar, the battery module and the printed circuit board.

HEAT MANAGEMENT SYSTEM

Resumen de: US2025300264A1

A heat management system includes: a first flow channel through which a heat medium flows; a second flow channel through which the heat medium flows; a reserve tank that is provided on the second flow channel; a pump that causes the heat medium to circulate; and a switching device. When the charging of an electric apparatus is ended in a state where the first flow channel and the second flow channel are disconnected, the heat management system executes an air removal process for the first flow channel and the second flow channel, after the end of the above charging, by connecting the first flow channel and the second flow channel by the switching device and driving the pump.

TEMPERATURE REGULATOR

Resumen de: US2025300266A1

A temperature regulator including a battery module having cells disposed side by side along a first direction, and including: temperature regulating units between two of the adjacent cells along the first direction and each having a first and second flat plate portion facing each in the first direction; a supply path supplying fluid to an introduction port of each of the temperature regulating units; a discharge path allowing the fluid to be discharged from a discharge port of each of the temperature regulating units; and connection walls connecting end portions of the first and second flat plate portions along a second direction intersecting the first direction. The temperature regulating unit includes, between the first and second flat plate portions, a first flow path communicating with the introduction port, and a second smaller flow path allowing the fluid from the first flow path to return and flow to the discharge port.

PEELING APPARATUS FOR POSITIVE ELECTRODE CURRENT COLLECTOR AND POSITIVE ELECTRODE COMPOSITE

Resumen de: US2025300260A1

Provided is a peeling apparatus for a positive electrode current collector and a positive electrode composite, the peeling apparatus including: a current-carrying area including an electrode; a shock wave delivery area configured to house a positive electrode plate; a partition plate configured to partition between both the areas; and a power supply device configured to supply electric power to the electrode, the peeling apparatus being configured to peel off the positive electrode composite from the positive electrode current collector of the positive electrode plate in such a manner that a discharge occurs between the electrode and the partition plate and a shock wave generated in the current-carrying area is delivered through the partition plate to the positive electrode plate in the shock wave delivery area.

BATTERY FRACTIONATION UNIT AND BATTERY FRACTIONATION METHOD

Resumen de: US2025300258A1

A battery fractionation unit has a battery container, a chute supplying batteries, and a chute supplying dry ice granules to the container. Cooled batteries from the container are supplied to a working chamber of a cutting unit. The crushed batteries from the cutting unit are supplied to an impact mill. The milled materials from the impact mill are supplied to a vibrating sieve chamber equipped with a pneumatic separator unit for separating the plastic fraction of the batteries. The battery container has a hot chamber for initial battery cooling in a gaseous CO2 atmosphere and a cold chamber for dosing dry ice granules to the cooled batteries. The container has a chute dosing the mixture of dry ice and batteries that is supplied to the cutting unit.

BATTERY PACK AND MANUFACTURING METHOD OF BATTERY PACK

Resumen de: US2025300244A1

A battery pack includes a left holder. The left holder includes a resin portion molded from resin and a plurality of lead plates held by the resin portion. The plurality of lead plates includes a first lead plate connected to a terminal of a first battery cell and a second lead plate connected to a terminal of another battery cell. In the resin portion, a through hole penetrating the resin portion in a left-right direction is formed. The through hole is located between outer edges of the two lead plates.

MODULARIZATION AND POWER MANAGEMENT OF BATTERY MODULES

Nº publicación: US2025296472A1 25/09/2025

Solicitante:

ZERO NOX INC [US]
ZERO NOX, INC

Resumen de: US2025296472A1

A modular battery system can allow for a varying number of battery modules to be connected or disconnected to the system to meet the power needs of particular applications, such as in use in different electrical vehicles. The system can provide parallel or series connections between the battery modules to further meet the power needs of the particular applications. The system can charge the battery modules and manage charging to charge a lowest voltage state battery module to increase battery efficiency and longevity.