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SINGLE BATTERY AND BATTERY PACK

Resumen de: WO2025194740A1

The present application relates to the related technical field of batteries. Disclosed are a single battery and a battery pack, which are used to solve the problems of short circuits and low yield rates of single batteries due to the fact that welding slag and metal burrs in existing single batteries escape into battery cells. The single battery provided in the present application comprises: a cap, wherein the cap is provided with a terminal post hole penetrating the cap in a first direction Z; a terminal post, which passes through the terminal post hole; at least two battery cells, each of which comprises a body and a tab bundle connected to the body, wherein each tab bundle consists of a plurality of stacked tabs and has a welding portion, there is a gap between welding portions of tab bundles of two adjacent battery cells in a second direction X, and in a non-welding area of each welding portion, there is a slit between two adjacent tabs on the same tab bundle in the first direction Z; and a protective adhesive structure, which comprises a filling portion and a covering portion, wherein the filling portion fills gaps and slits, and the covering portion is connected to the surface of each welding portion that faces away from the terminal post and at least covers a welding mark formed in a welding area of each welding portion.

RECHARGEABLE BATTERY

Resumen de: US2025300329A1

A rechargeable battery includes: an electrode assembly having an uncoated region; a can having a bottom portion facing the uncoated region and a side portion connected to an edge of the bottom portion, the can accommodating the electrode assembly in an inner space thereof, the bottom portion of the can having a base part connected to the side portion and a plurality of welding stepped parts protruding from the base part toward the uncoated region and welded to the uncoated region; and a cap plate coupled to an open end of the side portion to seal the can.

FORMATION METHOD FOR POUCH-TYPE BATTERY CELLS

Resumen de: US2025300256A1

A method of forming a battery cell using a formation device for a pouch-type battery cell includes a first charging step of charging a battery cell in a charging part; a hole processing step of forming a discharge hole in the gas pocket part of the charged battery cell; a gas discharging step of discharging internal gases generated during charging through a discharge hole; and a sealing step of sealing a discharge hole.

Battery System and Battery Management System Commonizing Method

Resumen de: US2025300253A1

A battery system includes a battery module; a cell monitor controller (CMC) including a battery monitoring integrated circuit (BMIC) that monitors a cell voltage of each of the plurality of battery cells based on a signal received from the plurality of input terminals; and a branch board including a plurality of wirings that provide a power path connecting the plurality of battery terminals and the plurality of input terminals of the CMC, and a plurality of switches that have one end connected to one of each of a plurality of adjacent two wirings included in the plurality of wirings and the other end connected to the other of each of the two wirings.

ELECTRODE ASSEMBLY SHORT CIRCUIT TEST DEVICE AND METHOD FOR RECHARGEABLE BATTERY

Resumen de: US2025300249A1

An electrode assembly short-circuit test apparatus for a rechargeable battery, includes: a first plate to press a first side of an electrode assembly, the electrode assembly including a negative electrode, a positive electrode, and a separator between the negative electrode and the positive electrode; a second plate to press a second side of the electrode assembly against the first plate; and a continuous pulser connected to a negative electrode tab and a positive electrode tab of the electrode assembly to apply continuous pulses to the negative electrode tab and the positive electrode tab.

STACKED STRUCTURE

Resumen de: US2025300254A1

The stacked structure includes a battery module, a conductive member, a first conductive adhesive, and a first temperature sensor. The conductive member is laminated on the battery module. The first conductive adhesive is disposed between the battery module and the conductive member. The first conductive adhesive adheres the battery module and the conductive member to each other. The first conductive adhesive electrically connects the battery module and the conductive member to each other. The first temperature sensor is disposed between the battery module and the conductive member to be in contact with the first conductive adhesive.

SYSTEM FOR DETERMINING AN ELECTRICAL REFERENCE IN TESTS ON ELECTROCHEMICAL CELLS AND DEVICE FOR TESTS ON ELECTROCHEMICAL CELLS

Resumen de: US2025300248A1

A system for determining an electrical reference in tests on an electrochemical cell includes a rigid separator that determines a separation volume between a working electrode and a counter electrode. The rigid separator also includes an electrically-insulating and ionically-conductive porous material. The rigid separator element is configured to be permeated by an electrolyte and through which ions pass during the charge or the discharge of the electrochemical cell. The system also includes reference electrode that includes an end portion and a contact portion electrically connected to the end portion. The end portion is configured to be connected to a measurement instrument and the contact portion is configured to be in contact with the electrolyte during testing of the electrochemical cell. The contact portion of the reference electrode is at least partially within the separation volume defined by the rigid separator.

METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE, METHOD FOR PRODUCING LITHIUM ION SECONDARY BATTERY, AND SULFIDE SOLID ELECTROLYTE

Resumen de: WO2025197831A1

The present invention relates to a method for producing a sulfide solid electrolyte, the method comprising, in order: heating starting materials, which respectively contain Li, P, and S, and a nitride that is represented by formula MαNβ so as to obtain a melt; and cooling the melt so as to precipitate a solid. The element represented by M is at least one element that is selected from the group consisting of group 2 to group 14 metal elements or metalloid elements in the periodic table, and α and β in the formula MαNβ respectively match the stoichiometric ratios of M and N in the nitride that is represented by the formula MαNβ.

FIRE SPREAD PREVENTION MATERIAL, ASSEMBLED BATTERY, AND AUTOMOBILE

Resumen de: WO2025197842A1

Problem To provide: a fire spread prevention material having sufficient fire spread prevention properties; an assembled battery using said fire spread prevention material; and an automobile comprising said assembled battery. Solution One aspect of the present invention provides a fire spread prevention material. The fire spread prevention material comprises: an inorganic fiber substrate containing inorganic fibers; and an inorganic substance supported on the inorganic fiber substrate and containing an inorganic acid salt. The moisture content of the inorganic substance at 30ºC is at most 60 mass%, and the activation energy of the moisture when 30% of the contained moisture is desorbed from the inorganic substance is at least 80 kJ/mol.

RESIN, RESIN SOLUTION, SOLID ELECTROLYTE SLURRY, SOLID ELECTROLYTE LAYER, POSITIVE ELECTRODE LAYER, NEGATIVE ELECTRODE LAYER, AND ALL-SOLID-STATE BATTERY

Resumen de: WO2025197827A1

Provided is a resin which is characterized by: having a structure represented by formula (1); and having at least one terminal structure that is selected from the group consisting of formula (2) and formula (3). (In formula (1), m represents an integer of 3 or more, and each R1 independently represents an alkylene group having 3 to 6 carbon atoms. Each R2 independently represents a divalent organic group. n represents an integer of 5 or more.) (In formula (2), R3 represents an alkyl group having 3 or more carbon atoms, or a phenyl group.) (In formula (3), R4 represents an alkyl group having 3 or more carbon atoms, or a phenyl group.)

BATTERY PACK

Resumen de: WO2025197748A1

One of a first case half and a second case half has at least one of a portion of a peripheral edge plate or a portion of a bottom plate configured so as to be recessed toward a housing space with respect to at least one of the outer surface of the other portion of the peripheral edge plate or the outer surface of the other portion of the bottom plate, whereby the recessed space that is recessed with respect to at least one of the outer surface of the other portion of the peripheral edge plate or the outer surface of the other portion of the bottom plate is provided on the outside of the case, and the entirety of a connection piping is provided inside the recessed space.

SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR

Resumen de: WO2025198455A1

Provided is a secondary battery comprising: first group unit cells and second group unit cells stacked in a first direction; first cell tabs extending from one end of the first group unit cells and bonded to each other; second cell tabs extending from one end of the second group unit cells and bonded to each other; and an electrode lead electrically connected to the first cell tabs and the second cell tabs, wherein the first cell tabs comprise a first horizontal portion, a second horizontal portion parallel to the first horizontal portion, and a first connecting portion connecting the first horizontal portion and the second horizontal portion, and the first horizontal portion, the second horizontal portion, and the first connecting portion are connected to form a Z-shaped cross-section.

USE OF PYROSULFATE-BORON TRIFLUORIDE COMPOSITE METAL SALT IN ELECTROLYTE SOLUTION, AND PREPARATION METHOD THEREFOR

Resumen de: US2025300230A1

Use of a pyrosulfate-boron trifluoride composite metal salt in an electrolyte solution. The use of the pyrosulfate-boron trifluoride composite metal salt having at least one structure is added to an electrolyte solution at an addition amount of 0.1 wt % to 15.0 wt %. The pyrosulfate-boron trifluoride composite metal salt is obtained by means of the reaction of a pyrosulfate and boron trifluoride gas or a boron trifluoride complex. A pyrosulfate-boron trifluoride composite lithium salt is further applied to a lithium-ion secondary battery including a negative electrode containing an active material with a specific surface area of 0.1 m2/g to 20 m2/g.

PREPARATION METHOD AND APPLICATION OF INTERPENETRATING SOLID ELECTROLYTE INTERFACE

Resumen de: US2025300220A1

A preparation method and an application of an interpenetrating solid electrolyte interface are provided. According to the present disclosure, a lithium metal electrode plate is prepared into a lithium oxide plating layer in an air atmosphere, and then a lithium sulfide plating layer is prepared by soaking in a lithium polysulfide plating solution, and then a lithium sulfide/lithium oxide interpenetrating solid electrolyte interface is obtained by drying at normal temperature.

COPPER FOIL, CURRENT COLLECTOR AND LITHIUM ION SECONDARY BATTERY

Resumen de: US2025300189A1

Provided is a copper foil, including 2 ppm to 21 ppm silver, 0.5 ppm to 5.5 ppm titanium, and 2 ppm to 80 ppm sulfur, wherein an orientation index of (220) surface of the copper foil is from 2.05 to 3.08. Also provided are a current collector for a lithium ion secondary battery and a lithium ion secondary battery.

HARD CARBON NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE PLATE AND BATTERY

Resumen de: US2025300178A1

A hard carbon negative electrode material includes a microstructure of multi-microporous layers. A most probable pore size of the micropores is 0.35 nm-1.5 nm, and a conductivity of the hard carbon negative electrode material under 63.66 Mpa is 0.3-130 S/cm. This hard carbon negative electrode material has a special ultrafine micropore structure. When applied to lithium-ion batteries, it can achieve micropore lithium insertion, allowing lithium ions to transform into clustered lithium within the microporous structure of the hard carbon negative electrode material near 0V voltage. This effectively prevents the growth of lithium dendrites while also effectively controlling the volume expansion of the negative electrode material before and after lithium insertion, thereby reducing the voltage between the positive and negative electrodes and improving high-temperature cycling.

LITHIUM-ION SECONDARY BATTERY AND ELECTRIC APPARATUS

Resumen de: US2025300229A1

A lithium-ion secondary battery includes an electrolyte, a positive electrode plate, a separator, and a negative electrode plate. The electrolyte includes a first additive and a second additive, based on a mass of the electrolyte, W1% is a mass percentages of the first additive and W2% is a mass percentages of the second additive, 0.05≤W1≤0.8 and 0.01≤W2≤4.1. The negative electrode plate includes a negative electrode current collector and a negative electrode material layer containing a negative electrode active material.

A PROCESS OF PREPARING SPHERICAL METAL PHOSPHATES, AND IMPLEMENTATIONS THEREOF

Resumen de: WO2025196822A1

The present disclosure provides a process of preparing spherical metal phosphate, comprising a) preparing a slurry comprising a structure directing agent, metal precursors, and a phosphate precursor; and b) hydrothermal treatment of the slurry at a temperature in a range of 170 °C to 220 °C, for a time period in a range of 7 to 18 hours to obtain the spherical metal phosphate. The present disclosure also provides a lithium manganese iron phosphate (LMFP) composite comprising the spherical metal phosphate; and a cathode material prepared using the LMFP.

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.

MONITORING AND STORING BATTERY AND VEHICLE-RELATED PARAMETERS IN A SWAPPABLE BATTERY PACK

Resumen de: WO2025198516A1

Embodiments herein disclose systems and methods for monitoring and storing battery and vehicle-related parameters in a swappable battery pack, wherein the swappable battery pack can be used in vehicles.

COOLING STRUCTURE OF BATTERY PACK

Resumen de: WO2025198248A1

A cooling structure of a battery pack that is disclosed comprises: a heat sink comprising a plurality of cooling flow paths; a plurality of battery assemblies longitudinally and/or transversely mounted on top of the heat sink; and a plurality of electrical components mounted on the front surface and/or the rear surface of the heat sink, wherein at least one of the plurality of electrical components has an insulating oil sealed therein, and heat accumulated in the insulating oil is discharged to the outside through the cooling flow paths of the heat sink.

BATTERY PACK

Nº publicación: WO2025198343A1 25/09/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
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