Alerta

DETECTION AND MITIGATION OF ANOMALOUS CONDITIONS IN BATTERY MODULES USING THIN-FILM PRESSURE SENSORS

Resumen de: US2025219171A1

Some embodiments disclosed herein are directed to battery management systems utilizing thin-film pressure sensors to determine anomalous conditions associated with battery modules. Some embodiments may include receiving a pressure measurement from the thin-film pressure sensor disposed between two battery cells in a battery module, and determining, based on the pressure measurement from the thin-film pressure sensor, an abnormal condition associated with the battery module. Other embodiments may be disclosed or claimed.

PITCH COATING FOR LI-ION BATTERIES

Resumen de: US2025219176A1

A recycling and enhancement process for graphite from a Li-ion recycling stream includes pitch coating for enhancing tap density and BET surface area compared to virgin materials and commercial graphite, and provide similar, if not greater performance. A multi-step pitch coating process includes two or more pitch coating stages at different temperatures. A first pitch mixing and coating at a lower temperature is followed by a second pitch mixing and coating at a higher temperature, which results in a pitch coated purified graphite having improved surface characteristics over recycled graphite and comparable or better properties compared to virgin (non-recycled) graphite.

BATTERY CELL, BATTERY, ELECTRIC DEVICE AND WELDING APPARATUS

Resumen de: US2025219264A1

A battery cell, a battery, an electric device and a welding apparatus are disclosed. The battery cell includes a housing, an electrode unit and an electrode lead member. The electrode unit is accommodated in the housing and includes a plurality of electrode tab sets arranged in a stacked way, and each of the electrode tab sets includes at least one electrode tab. The electrode lead member is arranged at the housing and includes a plurality of connection portions, each of the connection portions is welded to at least one of the electrode tab sets, and a plurality of electrode tab sets welded to the plurality of connection portions of the electrode lead member have a same polarity. By providing a plurality of connection portions on the electrode lead member, a layer amount of the electrode tabs welded to a single connection portion can be reduced.

ELECTRODE SHEET, JELLY ROLL, BATTERY AND PREPARATION METHOD FOR JELLY ROLL

Resumen de: WO2025139146A1

An electrode sheet, a jelly roll, a battery and a preparation method for the jelly roll, which relate to the technical field of batteries. The electrode sheet comprises a current collector, an active material layer and a reinforcing layer. The current collector comprises a tab and a main body, wherein one side of the tab is connected to the main body; the active material layer is arranged on the main body; and the reinforcing layer is arranged at the end of the tab that is close to the main body.

ALUMINUM BATTERY

Resumen de: US2025219160A1

An aluminum battery includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator is disposed between the positive electrode and the negative electrode. The electrolyte is impregnated into the separator, the positive electrode, and the negative electrode. The electrolyte includes aluminum halide, ionic liquid, and an additive, and the additive includes an isocyanate compound.

CYLINDRICAL BATTERY

Resumen de: US2025219262A1

A cylindrical battery is provided. The cylindrical battery includes a plurality of positive electrode sheets and a plurality of negative electrode sheets. The plurality of positive electrode sheets and the plurality of negative electrode sheets are alternately stacked along a height direction of the cylindrical battery, with a diaphragm provided between every two adjacent positive electrode sheet and negative electrode sheet. The cylindrical battery further includes a positive electrode current collecting column. The positive electrode current collecting column penetrates the plurality of positive electrode sheets, the plurality of negative electrode sheets and the plurality of diaphragms along an axial direction of the cylindrical battery. The positive electrode sheets are electrically coupled to the positive electrode current collecting column. The positive electrode current collecting column is electrically coupled to a top cover. The negative electrode sheets are electrically coupled to a housing.

ALL-SOLID-STATE BATTERY, MANUFACTURING METHOD OF THE SAME, AND CONDUCTIVE COATING CURRENT COLLECTOR

Resumen de: US2025219152A1

A method of manufacturing an all-solid-state battery includes: a step of forming a conductive first coating layer in a first region; a step of forming a second coating layer adjacent to the first coating layer in a second region, the second coating layer being easier to peel off than the first coating layer; a step of forming a first electrode layer continuously over the surfaces of the first and second coating layers: a step of forming a solid electrolyte layer on the surface of the first electrode layer; a step of forming a second electrode layer on the surface of the solid electrolyte layer; a step of hot pressing the obtained current collector-electrode composite; a step of removing the second coating layer with each layer thereon from the first current collector; and a step of laminating a second current collector on the surface of the second electrode layer.

Secondary Battery

Resumen de: US2025219175A1

Disclosed is a secondary battery, comprising an electrode assembly; an electrode lead attached to the electrode assembly; a case including a receiving portion in which the electrode assembly is received such that a part of the electrode lead is exposed, and a sealing portion configured to seal up the electrode assembly; and a gas adsorption element disposed in the receiving portion, wherein the gas adsorption element includes a gas adsorption film in which a gas adsorption material is dispersed in a polyolefin matrix resin in a predetermined weight range.

NONAQUEOUS ELECTROLYTE BATTERY

Resumen de: US2025219263A1

To provide a nonaqueous electrolyte battery capable of suppressing breakage of tabs even when an electrode stack constituting the nonaqueous electrolyte battery expands due to charge and discharge. Each tab is divided into a part to which tension is applied at the time of volume expansion of an electrode stack and a part where tabs converge (electrical connection part with the outside), and the tension applied to the part of each tab where the tabs converge is made equal. Specifically, a tab fixing member is disposed between negative electrode tabs and/or between positive electrode tabs, thereby suppressing an increase in tension between the tab fixing member and a negative electrode tab convergence part and/or a positive electrode tab convergence part.

CCS COMPONENT, BATTERY WITH SAME, AND ELECTRIC APPARATUS

Resumen de: US2025219258A1

A CCS component, a battery with the same, and an electric apparatus are disclosed. The CCS component includes: an isolation plate, where the isolation plate is a vacuum formed plastic piece, and a side surface of the isolation plate in thickness direction is a first surface; and connecting pieces, where the connecting pieces are connected to the isolation plate and arranged on a side on which the first surface of the isolation plate is located, and the connecting piece is configured to electrically connect an electrode pole of a battery cell. According to the CCS component application, the isolation plate and the connecting pieces are provided, and the isolation plate is provided as a vacuum formed plastic piece, which can give a high production efficiency of the isolation plates, thereby greatly improving the production efficiency of the CCS components and reducing the production costs of the CCS components.

Battery Thermal Management Systems and Methods

Resumen de: US2025219184A1

An exemplary embodiment of the present disclosure provides a battery system comprising one or more battery modules, one or more thermal conduits, and one or more thermoelectric coolers. Each of the one or more battery modules can comprise a plurality of battery cells. The one or more thermal conduits can be coupled to the one or more battery modules. The one or more thermoelectric coolers can be coupled to the one or more thermal conduits. The one or more thermal conduits can be configured to allow thermal energy to flow from the one or more battery modules to the one or more thermoelectric coolers. The thermoelectric coolers can be configured to dissipate thermal energy received from the one or more battery modules via the one or more thermal conduits.

Method and Facility for Preparing and Evaluating Batteries

Resumen de: US2025219179A1

The invention relates to a method for preparing and evaluating lithium-ion batteries, having at least one step in which the batteries (2, 10) or comminuted in the presence of an aqueous medium (12), wherein the batteries (2, 10) are comminuted with a remaining charge of maximally 30% in a comminuting device (73) while adding water (12), and the water (12) is supplied in such a quantity and at such a temperature that the mixture is not heated above a temperature of more than 40° C., preferably above 30° C., during the comminuting process. The invention also relates to a corresponding facility (71).

BATTERY PACK AND BATTERY APPARATUS HAVING THE SAME

Resumen de: US2025219186A1

A battery pack and a battery apparatus utilize cooling fluid and cooling fluid circuitry for cooling battery cells in a normal operating state in which an event is not detected and extinguishing the event in an abnormal state. The cooling fluid circuitry controls inflow and outflow rates of the cooling fluid, such as a fluid pump or a fluid valve connected to an inlet and an outlet of the battery pack. In a normal operating state in which an event, such as ignition, explosion, or gas emission of battery cells, is not detected, the operating heat resulting from charging and discharging of battery cells may be quickly cooled through immersion-type liquid cooling of the battery cells. In response to the detection of an event, the event may be quickly extinguished using the cooling fluid by raising the fluid level of the cooling fluid to a preset elevated level.

SELECTIVE RECOVERY OF LITHIUM FROM TERNARY CATHODE ACTIVE MATERIAL OF SPENT LITHIUM ION BATTERIES

Resumen de: US2025219181A1

A method of recovering ternary valuable metals from a waste cathode active material includes a step of leaching valid metals in a waste cathode active material powder under acidic conditions, and a step of recovering the leached valid metals, wherein, in the step of leaching valid metals in the waste cathode active material powder under acidic conditions, an oxidizing agent is further added to selectively leach lithium. The method further comprises a step of leaching cobalt (Co) and nickel (Ni) from a residue separated from the lithium leachate leached by the step of leaching valid metals in the waste cathode active material powder under acidic conditions and recovering manganese dioxide (MnO2) as a residue, a step of reducing the residue manganese dioxide, and a step of leaching the manganese dioxide.

BATTERY DIRECT RECYCLING

Resumen de: US2025219183A1

A system for recycling a Lithium-ion battery includes an electrolyte bath, a stack of cells, a sheet of lithium metal, and a circuit. The stack of cells is removed from a container of the battery without dismantling the cells and immersed in the electrolyte bath. Each cell includes a first electrode and a second electrode. The first electrodes of the cells are connected together by first connections. The second electrodes of the cells are connected together by second connections. The sheet of lithium metal is immersed in the electrolyte bath. The circuit is connected to the sheet of lithium metal and one of the first electrodes of the cells. The circuit is configured to re-lithiate the cells according to an amount of re-lithiation predetermined for the cells.

POWER STORAGE DEVICE

Resumen de: US2025219261A1

A power storage device includes: an electrode body formed by winding a positive electrode, a negative electrode, and a separator; a cap disposed close to one end of the electrode body in a winding axis direction of the electrode body; and a plurality of positive electrode tabs connecting the positive electrode to the cap, the plurality of positive electrode tabs at least partially overlapping each other forming an overlapped part that is joined to the cap.

METHOD FOR RECOVERING ACTIVE MATERIAL FROM POWER STORAGE DEVICE

Resumen de: US2025219180A1

A method for recovering an active material from a power storage device includes a processing step of processing at least a part of an electrode of a power source device including the electrode to which an active material adheres, such that the part becomes a corrugated shape.

BATTERY SELF-HEATING CIRCUIT, AND VEHICLE

Resumen de: US2025219188A1

A battery self-heating circuit, includes a first battery group, a second battery group, a first capacitor, a second capacitor, multiple phases of bridge arms, and multiple phase of windings, which correspond to the multiple phases of bridge arms on a one-to-one basis.

APPARATUS AND METHOD FOR CONTROLLING INNER CONDITION ENVIRONMENT OF BATTERY PACK

Resumen de: US2025219185A1

An apparatus and method for controlling an internal environment of a battery pack, the apparatus including a temperature sensor which measures an internal temperature of a battery pack, a humidity sensor which measures an internal humidity of the battery pack, a heating apparatus which increases the internal temperature of the battery pack and a processor which controls an internal environment of the battery pack by calculating a dew point based on the measured internal temperature and internal humidity, setting a threshold value based on the dew point, determining whether a current temperature reaches the threshold value according to changes in the internal temperature and the internal humidity and applying a control signal to the heating apparatus so that the current temperature does not reach the threshold value.

BATTERY PACK AND POWER TOOL SYSTEM

Resumen de: US2025219191A1

A power tool, a charging device, a battery pack, and a heat dissipation structure. The power tool includes a housing, a printed circuit board assembly, and a heat absorber. The printed circuit board assembly is disposed in the housing. The heat absorber is in thermal contact with at least part of the printed circuit board assembly and configured to absorb heat generated by the printed circuit board assembly. The heat absorber includes a hydrogel.

Battery Cell, Battery and Electric Device

Resumen de: US2025219199A1

A battery cell, a battery, and an electric device. The battery cell includes a shell, electrode terminals, at least one electrode assembly, a support frame and liquid retaining layer(s). The shell has a wall part, and the electrode terminals are provided at the wall part. The electrode assembly is accommodated in the shell. The electrode assembly has a main body and tabs. In the thickness direction of the wall part, the tabs protrude from an end of the main body facing the wall part and connected to the electrode terminals. In the thickness direction of the wall part, the support frame is provided between the wall part and the main body. The support frame is configured to support the main body. The liquid retaining layer(s) are provided at the support frame, and the liquid retaining layer(s) are configured to absorb and store the electrolytic solution in the shell.

ENERGY STORAGE DEVICE

Resumen de: US2025219190A1

A battery energy storage device includes a battery module. The battery cell is sheet-like, and the two surfaces of the battery cell along the thickness direction are the main heat dissipation surface of the battery cell. The box body comprises a bottom plate and a plurality of cooling plates arranged on the bottom plate; a holding space is formed between two adjacent cooling plates to accommodate the battery cell. The battery cell is installed in the accommodating space, and the main cooling surface on both sides of the battery cell is respectively fitted with two adjacent cooling plates.

BATTERY ASSEMBLY

Resumen de: US2025219196A1

Battery assemblies are disclosed. In an embodiment, a battery assembly includes a case, a plurality of battery cells accommodated in a first inner space of the case, and a plurality of particle-shaped insulating materials accommodated in a second inner space of the case.

BATTERY PACK AND BATTERY SYSTEM THEREOF

Resumen de: US2025219195A1

A battery pack includes a casing, a pipe assembly, and first, second and third battery modules disposed within the casing. The pipe assembly includes an input pipe, an output pipe set, a communication pipe set, and first, second, and third pipe sets. The first pipe set is disposed at a first side portion of the casing to be coupled to the input pipe and coupled to the first battery modules. The second and third pipe sets are disposed at a second side portion of the casing to be coupled to the second and third battery modules, respectively. The output pipe set is coupled to the second battery module and the third battery module. The communication pipe set is disposed at a back portion of the casing, coupled to the first battery module, and coupled in parallel to the second battery module and the third battery module.

METHOD FOR PRODUCING BATTERY EQUIPPED WITH LAMINATE-FILM OUTER PACKAGE

Nº publicación: US2025219202A1 03/07/2025

Solicitante:

PANASONIC ENERGY CO LTD [JP]
Panasonic Energy Co., Ltd

Resumen de: US2025219202A1

The present invention pertains to a method for producing a battery equipped with a laminate-film outer package in which an electrode body is outer-packaged with a laminate film. The present invention includes: an outer-packaging step for outer-packaging the electrode body with a laminate-film outer package; and a sealing step for sealing the periphery of the electrode body with the laminate-film outer package. The sealing step comprises: a first-stage sealing step for welding, while leaving a non-welded part at a leading end portion, an inner resin layer inward of the non-welded part; and a second-stage sealing step for heating and pressing the non-welded part, and pushing the inner resin layer outwardly, to thereby cover, with the inner resin layer, an end surface of a metal layer at the leading end of the laminate-film outer package.