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Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same

Resumen de: US20260245962A1

0000 Provided are a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound represented by Formula 1, a lithium salt, and an organic solvent; and a lithium secondary battery including the same: 0000 0000 wherein all the variables are described herein.

SIMPLIFIED MOUNTING OF A BURSTING MEMBRANE BY REINFORCEMENT

Resumen de: US20260246063A1

A membrane arrangement includes a bursting membrane and at least one reinforcing frame, wherein the reinforcing frame is connected to the bursting membrane, wherein the reinforcing frame connected to the bursting membrane is configured to be inserted into a cell housing on the inside and to be connected to the cell housing on the outside by a thermal joining process, and a related method includes connecting a bursting membrane to a battery cell housing and a battery cell with a membrane arrangement.

METHOD OF DETERMINING RECYCLABILITY OF ELECTRODE OF SECONDARY BATTERY AND PROGRAM FOR DETERMINING RECYCLABILITY OF ELECTRODE OF SECONDARY BATTERY

Resumen de: US20260243838A1

The method determines the degree of deterioration of an electrode to be recycled. The method includes: estimating characteristic parameters of the secondary battery subject to determination at the time of determination (step S1); obtaining the relationship between the electrolyte diffusion coefficient and the discharge capacity (step S2); based on the relationship between the electrolyte diffusion coefficient and the discharge capacity, determining a threshold value Dth of electrolyte diffusion coefficient (step S3); and comparing the threshold value Dth and a threshold value Dth0 of electrolyte diffusion coefficient before deterioration obtained in advance for the secondary battery subject to determination or a secondary battery of the same type as the secondary battery subject to determination, and, based on the difference between the threshold value Dth and the threshold value Dth0, ΔDth=Dth−Dth0, classifying the secondary battery subject to determination (step S4).

LITHIUM SECONDARY BATTERY ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: US20260245964A1

0000 The present disclosure relates to a lithium secondary battery electrolyte comprising a phosphorofluoridate compound represented by chemical formula 1 and a lithium secondary battery comprising same. The lithium secondary battery comprising the electrolyte according to one embodiment produces an output that does not degrade even under high voltage, and has excellent lifespan characteristics, a high capacity recovery rate at high temperature, and excellent storage stability. In addition, the lithium secondary battery comprising the electrolyte according to one embodiment has excellent output characteristics resulting from reduced internal resistance of the battery, and exhibits excellent cycle characteristics and stability even when charged under high temperature and high voltage.

Holding Mechanism for Electrode Laminate

Resumen de: US20260246035A1

A holding structure for a laminated body includes the laminated body in which a plurality of electrodes are laminated, and a holder that holds the laminated body to fix the plurality of electrodes to one another. The holder includes an upper cover that covers an upper surface of the laminated body and covers left and right side-surfaces of the laminated body, and a lower cover that covers a lower surface of the laminated body and covers the left and right side-surfaces of the laminated body. The upper cover and the lower cover are joined together on the left and right side-surfaces of the laminated body.

POWER STORAGE DEVICE, COVER MEMBER, FIXING JIG, METHOD FOR PRODUCING POWER STORAGE DEVICE, AND TRANSPORT JIG

Resumen de: US20260246031A1

A power storage device is provided with an electrode body and an outer package in which the electrode body is sealed. The outer package includes an outer package film which enfolds the electrode body in such a manner that an opening is formed, and a cover member which is disposed at the position of the opening. The cover member has a first surface that faces the electrode body, a second surface that is on the reverse side of the first surface, and a projection that protrudes from the second surface.

COATINGS WITH POLYTETRAFLUOROETHYLENE PARTICLES FOR BATTERY SEPARATORS AND COATED BATTERY SEPARATORS WITH SAME

Resumen de: US20260245984A1

Described herein is a coated battery separator where the coating is provided on one or both sides of the battery separator. The coating comprises polytetrafluoroethylene (PTFE) particles and the coating is an outermost coating layer. In some cases, the coating may also comprise ceramic particles.

BATTERY CELL DISPOSAL APPARATUS INCLUDING INPUT UNIT CONFIGURED TO ALLOW DISTRIBUTED INPUT TO BE PERFORMED THERETHROUGH

Resumen de: US20260245999A1

A battery cell disposal apparatus includes an input unit configured to receive a battery cell therethrough and a processing unit configured to process the battery cell received through the input port. The input unit includes an input port including an input hole and an input slope inclined downwards toward the input hole, a distribution guide located under the input hole, the distribution guide having an apex provided at an upper surface thereof, and at least one connecting shaft configured to connect an edge of the input hole and an edge of the distribution guide to each other.

POWER CONTROL SYSTEMS FOR BATTERY ENERGY STORAGE SYSTEMS USING SECOND-LIFE ELECTRIC VEHICLE (EV) BATTERIES

Resumen de: US20260246273A1

0000 Power control systems for battery energy storage systems using second-life electric vehicle (EV) batteries are disclosed. In one aspect, the power control system includes a hardware architecture including an AC/DC converter in which an AC side of the AC/DC converter is connected to an electrical grid via a first terminal and a DC side of the AC/DC converter is connected to a DC bus and a plurality of DC/DC converters. A primary side of each of the DC/DC converters is connected to the DC bus and a second side of each of the DC/DC converters is connected to one of the EV batteries via a corresponding battery terminal. The power control system further includes a controller configured to coordinate the AC/DC converter and the DC/DC converters to maintain power equilibrium and to realize independent power control of each of the batteries and the grid-tied interface.

Composite binder for electrode sheet, and preparation method for and use of composite binder

Resumen de: US20260245908A1

Provided is a composite binder for an electrode sheet, and a preparation method for and a use of the composite binder. The composite binder for an electrode sheet uses both a fluorine-containing polymer and an aromatic polyamide. Compared with using a fluorine-containing polymer alone, the strength of the composite binder of the present application is enhanced, the peeling strength of the battery electrode sheet is higher, and the electrolyte infiltration effect is better. Compared with using aromatic polyamide alone, the moisture content of the battery electrode sheet is lower, the hygroscopicity is reduced, and the internal resistance of a battery cell is also lower. That is, the composite binder for an electrode sheet of the present application can have both the advantages of good electrochemical performance of the fluorine-containing polymer and high bonding strength of the aromatic polyamide, and the use cost of the binder is also reduced.

PROCESS FOR MAKING PARTICULATE (OXY)HYDROXIDES OF NICKEL AND METAL OTHER THAN NICKEL

Resumen de: US20260242244A1

Described herein is a process for making a particulate (oxy)hydroxide of TM where TM is a combination of nickel and at least one metal selected from Co and Mn. The process includes the steps of: (a) precipitating a hydroxide of TM by combining one or more aqueous solution(s) (α) containing sulfates of Ni and of at least one transition metal selected from Co and Mn, and an aqueous solution (β) containing sodium hydroxide in a stirred tank reactor,(b) separating the precipitated hydroxide of TM from a continuous phase by way of a filtration step,followed by washing the resultant filter cake with an aqueous medium, thereby obtaining a washed filter cake and a filtrate that contains sodium sulfate,(c) removing water from the filtrate, thereby obtaining a concentrated filtrate and water, and(d) at least partially recycling the water from step (d) and further using it.

GASKET, CYLINDRICAL BATTERY, AND CYLINDRICAL BATTERY MANUFACTURING METHOD

Resumen de: US20260246039A1

A gasket of a cylindrical battery comprises: a cylindrical portion having an annular groove provided on the outer circumferential surface thereof; and an annular portion extending radially inward from one end on one side in an axial direction of the cylindrical portion. If a sealing body of the cylindrical battery is attached to the gasket so as to abut the annular portion, in the axial direction of the cylindrical portion, the annular groove is provided in a range of the cylindrical portion extending from a first position, which corresponds to a surface on the other side of a peripheral portion of the sealing body, to a second position which is 1 mm apart on the other side in the axial direction.

VOLTAGE DETECTION DEVICE AND BATTERY MODULE

Resumen de: US20260246117A1

A voltage detection device (20A) includes a plurality of voltage detection terminals (210) and a plurality of voltage detection lines (220) electrically connected to the plurality of voltage detection terminals (210). The voltage detection lines (220) electrically connected to adjacent voltage detection terminals (210) are drawn through a region between the adjacent voltage detection terminals (210).

MULTILAYER STRUCTURES CONTAINING LOW VISCOSITY POLYURETHANE POTTANT COMPOSITIONS

Resumen de: US20260241664A1

0000 Multilayer compositions may include at least one first layer containing a thermoset resin; and a second layer emplaced on the at least one first layer and containing a reaction product of: an isocyanate component containing one or more isocyanate compounds; and an isocyanate-reactive component containing: one or more polyether polyols, one or more aliphatic polyols; and one or more hollow particles present in at least one of the isocyanate component, the isocyanate-reactive component, or a third component. Methods may include preparing a multilayer composition, including depositing at least one layer of a thermoset resin on a substrate; and disposing a second layer on the at least one layer of thermoset resin.

IMPROVED BATTERY MANAGEMENT SYSTEM AND MONITORING DEVICES

Resumen de: US20260244548A1

The present disclosure provides a monitoring device operable to report sensor measurement data in a battery system. The monitoring device comprising: at least one sensor operable to obtain measurement data of one or more modules of the battery system; a receiver operable to receive, from a communications controller, a timing signal defining a transmission time of a reporting frame; and a transmitter operable to report the obtained measurement data to the communications controller; wherein the monitoring device is configured to: use the received timing signal to select a sampling time for the at least one sensor to obtain the measurement data of the one or more modules of the battery system; and transmit the obtained measurement data to the communications controller at the transmission time defined in the received timing signal.

HEAT TRANSFER SUPPRESSION SHEET AND BATTERY PACK

Resumen de: US20260246023A1

A heat transfer suppression sheet contains at least one kind of fiber selected from an inorganic fiber and an organic fiber, and a liquid repellent substance having a surface tension smaller than a surface tension of water. The heat transfer suppression sheet may contain inorganic particles, and at least a part of the inorganic particles may be the liquid repellent substance.

HEAT TRANSFER SUPPRESSION SHEET AND BATTERY PACK

Resumen de: US20260246022A1

A heat transfer suppression sheet contains an inorganic particle and an organic fiber. A surface of the heat transfer suppression sheet has a first region and a second region, the first region containing a stripe-like fiber bundle composed of the organic fibers, and the second region does not contain the fiber bundle. The first region may contain the stripe-like fiber bundle passing through at least three continuous virtual frames, each frame being a 5 mm square.

MANUFACTURE OF DRY ELECTRODES FOR BATTERIES USING A SOLVENT FREE PASTE

Resumen de: US20260245859A1

0000 A method for manufacturing a dry electrode for batteries, directly from an agglomerate of a dry paste of a fibrilized mixture of electrode materials comprising at least one electrode active material, optionally at least one conductive material, at least one binder and optionally at least one co-binder, by continuously calendering said agglomerates and then laminating the formed calendered film.

MOBILE MACHINE ELECTRIC POWER MODULE

Resumen de: US20260241805A1

A modular mobile machine electric power system comprising an insulated housing, a battery contained in the housing, a charging inlet port in the housing, charging electronics contained in the housing and connected between the charging inlet port and 2024/182338 the battery, a motor power outlet port in the housing configured to be operatively connected to an electric motor of a mobile machine, discharging electronics contained in the housing and connected between the battery and the motor power outlet port, a battery thermal management system contained in the housing, a controller contained in the housing, and the housing comprising a mechanical attachment configured to be operatively connected to the mobile machine.WO

THERMAL REGULATION DEVICE FOR COOLING ELECTRICAL ENERGY STORAGE MEMBERS

Resumen de: US20260246014A1

0000 A thermal regulation device for electric battery cells includes a distribution tank having a fluid intake chamber and a fluid return chamber. A tube with two fluid circulation assemblies is rigidly secured by a bridge of material, one in communication with the intake chamber and the other with the return chamber, the bridge of material forming at least one absence of material between the two assemblies. The distribution tank includes a rib separating the intake chamber from the return chamber, partially housed in the absence of material. The bridge of material includes a notch opening out on an end face of the tube, the rib including a longitudinal bulge housed partially in the notch.

CYLINDRICAL BATTERY

Resumen de: US20260245972A1

A negative electrode mixture layer has an extension section that extends to the winding starting side from the winding inside of a starting end on the winding starting side of a positive electrode. A first distance between the center of the starting end in the width direction and a mixture layer starting end on the winding starting side of the negative electrode mixture layer is greater than at least one of a second distance between one end of the starting end in the width direction and the mixture layer starting end, and a third distance between the other end of the starting end in the width direction and the mixture layer starting end.

COOLANT TANK FOR A BATTERY MODULE, BATTERY MODULE, BATTERY PACK, AND VEHICLE

Resumen de: US20260246019A1

0000 A coolant tank for a battery module is disclosed, wherein the coolant tank is configured to accommodate coolant in an inner volume delimited by a number of wall segments of the coolant tank, wherein one wall segment of the number of wall segments forms a number of recessed formations each comprising an outer surface delimiting the inner volume of the coolant tank and an inner surface delimiting a cell compartment for accommodating a battery cell. The present disclosure further relates to a battery module, a battery pack, and a vehicle.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY

Resumen de: US20260245885A1

A positive electrode active material for a lithium secondary battery, contains a lithium metal composite oxide and barium sulfate, in which the lithium metal composite oxide is represented by Formula (1).(in Formula (1), M1 is at least one element of Co, Mn, or Al, M2 is at least one element of Ti, Zn, Zr, Mg, Ca, B, Si, Nb, W, Mo, Ta, or P, and Formula (1) satisfies −0.1≤a≤0.2, 0

POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260245898A1

0000 Provided are a positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery, and an electric device. The positive electrode active material comprises Na<4-a>AFe<3-c>B(PO<4>)<2-e>D(P2O7), wherein A comprises at least one of Li and K, B comprises a metal element, D comprises at least one of a halogen anion, a silicate ion, a sulfate ion, or a borate ion, −0.12≤a≤0.12, b≥0, 0≤c≤0.3, d≥0, f>0 and 0