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DEVICE FOR PRESSING AND SEALING ALL-SOLID-STATE SECONDARY BATTERY

Resumen de: US20260074270A1

A device for pressing and sealing an all-solid-state secondary battery protects one or more all-solid-state secondary batteries placed in an internal space created by a first cover and a second cover being vacuum-sealed to each other from heat-transfer fluid, while preventing bending or warping that may occur in the secondary batteries during a WIP process.

CONNECTING TERMINAL FOR ACQUISITION WIRE HARNESS, BATTERY MODULE AND POWER-CONSUMING DEVICE

Resumen de: US20260074379A1

The present application discloses a connecting terminal for acquisition wire harness, a battery module, and a power-consuming device. The connecting terminal for acquisition wire harness includes an intermediate connecting portion, a wire harness connecting portion, and a busbar connecting portion. The intermediate connecting portion is fixedly connected to the wire harness connecting portion and the busbar connecting portion. The wire harness connecting portion and the acquisition wire harness are pressed and fixed. The busbar connecting portion is clampable to an accommodating portion preset on a busbar.

BATTERY

Resumen de: US20260074374A1

The disclosure provides a battery, including a first electrode plate and a separator, the first electrode plate including a first current collector and a first coating located on a surface of the first current collector. The first coating is connected to the separator, and a surface of the first coating is provided with a recess, and an air permeability S of the separator and a width L of the recess satisfy: 5000 μm·sec/100 cc≤S×L≤75,000 μm·sec/100 cc, where S is in sec/100 cc and L is in μm. The disclosure can improve the rate capability of the battery while reducing the voltage drop of the battery and reducing the risk of short circuit.

BATTERY CONTROL DEVICE AND SHORT-CIRCUIT DETECTION METHOD THEREOF

Resumen de: US20260074539A1

A battery control device includes: a first battery control unit configured to control an electrical connection between an external load and a first battery module, the first battery control unit including: a first switch connected between a positive terminal for the first battery module and the external load; a second switch connected between a negative terminal for the first battery module and the external load; and a first controller configured to control an open/closed state of the first and second switches. The first controller may be configured to detect a short-circuit between the external load and the first battery control unit, according to a voltage between both ends of the first switch detected with the first switch open and the second switch closed.

Pouch Type Secondary Battery

Resumen de: US20260074362A1

A secondary battery includes an electrode assembly, a pouch type case including an accommodation portion for accommodating the electrode assembly and a sealing portion for sealing the accommodation portion, an electrode lead connected to the electrode assembly and protruding to the outside of the pouch type case via the sealing portion, a lead film disposed between the electrode lead and the pouch type case, and a gas guide portion disposed between the electrode lead and the lead film. The gas guide portion includes a first layer having a modified polyolefin resin in contact with the electrode lead, and a second layer disposed on the first layer.

SPACER, METHOD OF MANUFACTURING THE SAME, AND BATTERY MODULE INCLUDING THE SPACER

Resumen de: US20260074353A1

Examples of the disclosure include a spacer including a polymer matrix, and an endothermic flame retardant dispersed in the polymer matrix. The polymer matrix includes a fiberized polymer, and the endothermic flame retardant is included in a content in a range of about 60 wt % to about 98 wt % with respect to a total weight of the spacer.

SEPARATORS FOR VRLA BATTERIES AND METHODS RELATING THERETO

Resumen de: US20260074368A1

Improved battery separators, batteries, and systems, as well as methods relating thereto are disclosed herein for use in various lead acid batteries such as valve-regulated lead acid (VRLA) batteries that include one or more AGM layers. The improved battery separators described herein may provide a battery system with an advantage of a significantly decreased acid filling time and a significantly increased acid filling speed. Various improved batteries, methods and systems are described herein using such improved battery separators that increase acid filling speed and decrease acid filling time for a VRLA battery.

ELECTRONIC ATOMIZATION HEATING BATTERY ASSEMBLY AND ELECTRONIC ATOMIZATION HEATING DEVICE WITH REUSABLE COMPONENT

Resumen de: US20260068929A1

An electronic atomization heating battery assembly includes a first housing, a battery accommodating housing, a battery, a battery management module, a control module and a connecting member. The first housing has a first receiving space. The battery accommodating housing is received in the first receiving space. The battery accommodating housing has an accommodating space. The battery is detachably received in the accommodating space. The battery management module is located at one end of the battery. The control module is located at another end of the battery. The battery management module and the control module are detachably connected to the connecting member, so that components such as the battery can be reused. The present disclosure also discloses an electronic atomization heating device having the electronic atomization heating battery assembly.

Battery Abuse System that Facilitates In-Situ X-Ray Imaging and Multi-Modal Measurements and Methods Thereof

Resumen de: US20260071945A1

Systems and methods that facilitate X-ray imaging of lithium-ion (Li-ion) batteries during mechanical, thermal, and/or electrical abuse are disclosed. In addition to facilitating X-ray imaging, the system also facilitates the simultaneous collection of thermal, electrical, force, and displacement data during the abuse-testing of Li-ion batteries. Materials that are within the field of view of X-ray imaging are highly transparent to X-rays. The system also contains a mechanical indentation apparatus that facilitates high force indentation, compression, or penetration tests of batteries to induce mechanical failure or thermal runaway within the Li-ion battery.

METHOD FOR MEASURING INTERNAL RESISTANCE OF BATTERY

Resumen de: US20260072093A1

The disclosed method is a method for measuring the internal resistance of a battery. The measurement method includes a conduction step of charging or discharging the battery, a measurement step of measuring an open circuit voltage of the battery at the end time of the charging or discharging and thereafter, and a calculation step of individually calculating at least one resistance component included in the internal resistance, based on a voltage change of the open circuit voltage measured in the measurement step and a current value of current flowing through the battery for the charging or discharging at the end time. In the calculation step, the at least one resistance component is calculated based on a slope of a line obtained by plotting the voltage change in a graph in which a horizontal axis indicates a square root of an elapsed time from the end time and a vertical axis indicates the open circuit voltage.

JIG FOR MEASURING THREE-ELECTRODE VOLTAGES

Resumen de: US20260072085A1

A jig for measuring three electrode voltages includes: a jig body having a receiving portion for a secondary battery; a jig door for sealing the receiving portion; a positive electrode on the receiving portion, electrically connected to a positive electrode tab, and protruding outwardly; a negative electrode on the receiving portion of the jig body, being in contact with and electrically connected to a conductive member electrically connected to the secondary battery, and protruding outwardly; and a reference electrode inserted into a winding core of an electrode assembly of the secondary battery in the receiving portion while extending through a top plate of the jig body and protruding to an upper portion of the jig body. The reference electrode comprises a metal wire and a metal cap wrapping around the metal wire, and a length of the metal cap is in a range of 15 mm to 20 mm.

Rechargeable Lithium Batteries

Resumen de: US20260074280A1

A rechargeable lithium battery that includes a positive electrode including a positive electrode active material layer and a current collector; a negative electrode; and an electrolyte solution is provided. The positive electrode active material layer and the electrolyte solution include an additive, a total amount of the additive included in the positive electrode active material layer and the additive included in the electrolyte solution is at least about 0.1 wt % and at most about 1 wt % based on a total positive electrode active material layer. A boiling point of the additive is greater than about 200° C.

MULTILAYER NANOPOROUS SEPARATOR

Resumen de: US20260074273A1

A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer, and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm.

SOLID COMPOSITE ELECTROLYTE

Resumen de: US20260074275A1

The present invention relates to a solid composite electrolyte comprising a) at least one fluoropolymer and b) at least one sulfide-based solid ionic conducting inorganic particle, wherein a) the fluoropolymer comprises recurring units derived from i) at least 50.0 mol % of vinylidene difluorides, the mol % being relative to the total moles of recurring units; ii) at least one C2-C8 chloro and/or bromo and/or iodo fluoroolefin; and iii) at least one C2-C8 fluoroolefin, wherein i), ii) and iii) are different from each other; to a slurry for manufacturing a solid composite electrolyte comprising a) at least one fluoropolymer according to the present invention and b) a sulfide-based solid ionic conducting inorganic particle, and c) at least one non-aqueous solvent; to an electrode comprising a solid composite electrolyte according to the present invention, d) at least one electroactive material, and optionally e) at least one conductive agent; and to a solid state battery comprising a positive electrode, a negative electrode and a membrane, at least one among which comprises a solid composite electrolyte according to the present invention. The present invention also relates to a binder solution for a solid state battery comprising a) at least one fluoropolymer according to the present invention and c) at least one non-aqueous solvent.

ELECTROLYTE ADDITIVE FOR SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY INCLUDING SAME AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Resumen de: US20260074286A1

The present invention relates to a novel electrolyte additive, a non-aqueous electrolyte for a lithium secondary battery comprising the novel electrolyte additive, and a lithium secondary battery comprising the non-aqueous electrolyte. More specifically, the present invention relates to a non-aqueous electrolyte for a lithium secondary battery comprising an additive capable of forming a stable film on an electrode surface. The present invention also relates to a lithium secondary battery comprising such a non-aqueous electrolyte, thereby, a high temperature lifespan of the lithium secondary battery is not deteriorated, resistance does not increase when the lithium secondary battery is stored at a high temperature, and expansion of a volume (thickness) of the lithium secondary battery is suppressed when the lithium secondary battery is stored at a high temperature.

APPARATUS FOR MANUFACTURING BATTERY CELL

Resumen de: US20260074264A1

An apparatus for manufacturing a battery cell for processing a sealing part of a battery cell, the sealing part being formed on one side of a body part in which an electrode assembly is accommodated, includes: a support unit including a first support portion and a second support portion supporting the battery cell in different directions; and a pressing unit moving toward the support unit to bend the sealing part, wherein the first support portion reciprocates in a first direction, the second support portion reciprocates in a second direction, and the second direction is inclined with respect to the first direction.

UNIVERSAL WASHER, FASTENING APPARATUS, AND BATTERY PACK

Resumen de: US20260074348A1

Disclosed are a universal washer, a fastening apparatus, and a battery pack. The universal washer may be interposed between a fastening bolt and a fastening nut for fixing one or more connection members to be in contact with a lower surface of the one or more connection members and may be formed with a through hole through which a shaft at a lower part of a head of the fastening bolt passes. A concave curved portion may be formed in a peripheral portion of the through hole in a direction of travel of the shaft of the fastening bolt, and a flat rim portion may be formed on a rim of the universal washer.

CONFIGURABLE BATTERY BACKPLANE AND MODULES AND METHODS OF OPERATING THE SAME

Resumen de: US20260074350A1

An energy storage/battery system is disclosed. The system can include a multi-voltage configurable module (MVCM) and a multi-voltage configurable backplane (MVCB) that form the system. The system can be dynamically controlled to bring MVCMs on or offline to deliver power and capacity to a device. The MVCM can include a main housing with first cavities extending through the main housing to receive battery cells and second cavities in which printed circuit boards can be positioned to support the battery cells. The MVCB can include separable main housing sections.

BATTERY PACK

Resumen de: US20260074347A1

A battery pack according to the present disclosure includes a battery case, a battery module, a first fastening member, a second fastening member, and a thermal conduction member. The battery case includes an upper case and a lower case. The battery module is stored in the battery case. The battery module includes a plurality of battery cells that is stacked in the battery module. The first fastening member is configured to fasten the top plate section of the upper case and the battery module. The second fastening member is configured to fasten the bottom plate section of the lower case and the battery module. The thermal conduction member is provided in contact with the upper surface of the battery module and the inner surface of the top plate section, between the battery module and the top plate section.

RECHARGEABLE BATTERY

Resumen de: US20260074382A1

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case that is connected to the first electrode and accommodates the electrode assembly, and includes an opening; a cap plate that is coupled to the case to cover an outer area of the opening and includes a through-hole exposing a central area of the opening; a terminal plate that is connected to the second electrode and is insulation-bonded to the cap plate so as to cover the through-hole; and a thermal-fusion layer that is positioned between the cap plate and the terminal plate and insulation-bonds the cap plate and the terminal plate, and the cap plate includes a plating layer that is directly bonded to the thermal-fusion layer.

BATTERY MODULE AND VEHICLE

Resumen de: US20260074535A1

According to an embodiment, a battery module includes a cell group in which a first cell and a second cell are connected in parallel, a first circuit breaker mechanism configured to disconnect connection between the first cell and the second cell when a temperature of the first cell is equal to or higher than a first temperature, and a connection mechanism configured to connect the first cell to a discharge circuit when the temperature of the first cell is equal to or higher than a second temperature higher than the first temperature.

METHOD OF MANUFACTURING POWER STORAGE DEVICE

Resumen de: US20260072091A1

A method of manufacturing a power storage device including plural power storage cells includes a wire forming process of forming a wire of the power storage device such that adjacent power storage cells in the power storage device are connected to a common wire, and a resistance measuring process of measuring an electrical resistance of at least a part of the formed wire. In the resistance measurement process, the voltage of the open circuit including the second power storage cell and the common wire portion is measured while a current is supplied to the closed circuit including the first power storage cell and the common wire portion with respect to the common wire portion of the first power storage cell and the second power storage cell adjacent to each other in the power storage device, and the electrical resistance of the common wire portion is acquired using the measured voltage.

BATTERY AGING ASSESSMENT METHOD BASED ON MULTI-SOURCE AND MULTI-SCALE HIGH-DIMENSIONAL STATE SPACE MODELING

Resumen de: US20260072094A1

Disclosed is a battery aging assessment method based on multi-source and multi-scale high-dimensional state space modeling in the field of energy storage in renewable power systems. The method includes: acquiring a time series of each discharge process within a preset number of discharge cycles of a sample battery; determining a first state transition path and a second state transition path based on discharge parameters corresponding to the time series; establishing a benchmark working-state transition path; calculating multiple sample distances between the second state transition path and the benchmark working-state transition path; training a battery aging assessment model using the sample distances as input and corresponding target state-of-health values as output; calculating a target distance between a state transition path of a to-be-predicted target battery and the benchmark working-state transition path.

BATTERY STATE PREDICTION APPARATUS AND OPERATING METHOD THEREOF

Resumen de: US20260072087A1

Discussed is a state prediction apparatus that may include a data managing unit configured to extract first battery data including battery data obtained for a first predetermined time after completion of charging of a battery and second battery data including battery data obtained for a second predetermined time after entering of discharging of the battery and a controller configured to obtain first state data for predicting a state of the battery by applying the first battery data to a first deep learning model, obtain second state data for predicting the state of the battery by applying the second battery data to a second deep learning model, and predict the state of the battery based on the first state data and the second state data.

Electronic Device for Detecting Abnormality of Battery and Operating Method of the Electronic Device

Nº publicación: US20260072095A1 12/03/2026

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: US20260072095A1

An electronic device obtains input data through a detection circuit, standardizes each of column vectors of the input data to obtain standardized data for the input data, obtains determination reference data based on the standardized data, and determines first state abnormality and/or second state abnormality of each of the M battery cells based on values indicated by the entries of respective row vectors of the determination reference data. The first state abnormality is determined based on a learning-based model, and the second state abnormality is determined based on a scheme other than the learning-based model.