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1729
results.
Updated on
19/03/2026 [07:23:00]
Results 550 to 575 of 1729
Absstract of: WO2026052153A1
The present application provides a preparation method for a negative electrode slurry, a negative electrode sheet, a battery, and a negative electrode slurry prepared by the present application. The preparation method comprises the following steps: S1, preparing a first adhesive solution from a first binder and water, subjecting a negative electrode main material and a first conductive agent to dry-powder mixing, then adding the first adhesive solution thereto and continuing to mix same, so as to obtain a first mixed system; S2, adding part of a second binder to the first mixed system and mixing same, so as to obtain a second mixed system; S3, adding the remaining second binder to the second mixed system, so as to obtain a third mixed system; S4, adding a second conductive agent to the third mixed system and mixing same, so as to obtain a fourth mixed system; and S5, adding a third binder to the fourth mixed system, mixing same, and adjusting the solid content and viscosity thereof, so as to obtain a negative electrode slurry. The negative electrode slurry exhibits uniform dispersion and high stability, and has no obvious sedimentation and little viscosity change after long-term storage, and the electrode sheet prepared therefrom has a high peeling force, and the battery prepared therefrom has good cycle performance.
Absstract of: WO2026051759A1
Provided in the present application are an electrolyte and a secondary battery. The electrolyte of the present application comprises a solvent, an electrolyte, and an additive. The additive comprises a first component and a second component. The first component is selected from a compound represented by formula I. The second component is selected from a compound represented by formula II. The synergy of the first component and the second component can enhance the high-temperature storage performance and high-temperature cycle performance of the secondary battery, and reduce the impedance growth rate.
Absstract of: WO2026055137A1
The present disclosure relates to an electrode assembly comprising an electrode and a coating layer or sleeve configured to be positioned over a bare region of an electrode, and methods of making the same. The coating layer or sleeve may reduce incidence of separator failure and/or internal short circuiting. The coating layer or sleeve may help reduce the stress caused by the edge of the electrode against another electrode. Energy storage devices, such as a lithium-ion battery, utilizing the electrode assembly are also described.
Absstract of: WO2026055096A1
Disclosed is a method for preparing a battery assembly based on multiple pre-pressed subunits each of which begins and ends with a cathode layer. In some embodiments, the battery assembly prepared by the method as disclosed herein can lead to a longer cycle life in comparison to one prepared by pre-pressed subunits beginning and ending with an anode layer.
Absstract of: WO2026054860A1
The present disclosure provides for batteries including an all-active material cathode, methods of making material cathodes, and the like. The battery can be a single-use battery, in other words, the battery does not need to be rechargeable. The cathode architecture of the present disclosure is referred to as an all-active material (AAM) electrode. AAM architecture can produce improved volume loading efficiency in the cell, removal of inactive components that can reduce efficiency of the battery, improved mechanical characteristics, and a homogeneous material distribution.
Absstract of: WO2026054345A1
A battery diagnosis apparatus, according to one embodiment disclosed in the present document, comprises: an interface for acquiring a temperature profile indicating a temperature change of a battery cell with respect to a voltage change of the battery cell, and a capacity profile indicating a capacity change of the battery cell with respect to the voltage change of the battery cell; and at least one processor, wherein the at least one processor is configured to estimate a degradation level indicating a degree to which the battery cell is degraded by using identification of a first peak value, indicating a phase transition of the battery cell, on the basis of the temperature profile, and identification of a first point corresponding to the first peak value from the capacity profile.
Absstract of: WO2026054342A1
A technical idea of the present invention provides an inspection apparatus comprising: an inspection jig that includes a first jig having a plurality of first pressure sensing elements and a second jig having a plurality of second pressure sensing elements, and is configured to generate thickness data for the thickness of a battery cell while the battery cell provided between the first jig and the second jig is in contact with the first jig and the second jig; and a processor configured to detect a bending dimension and a bending shape of the battery cell on the basis of first pressure data generated by the plurality of first pressure sensing elements, second pressure data generated by the plurality of second pressure sensing elements, and the thickness data.
Absstract of: WO2026054424A1
A technical idea of the present invention provides a battery device comprising: a housing; a cell assembly which is provided in the housing and which includes a plurality of battery cells; a first thermally conductive adhesive layer for attaching a first area of the cell assembly to the housing; and a second thermally conductive adhesive layer for attaching a second area of the cell assembly to the housing, wherein the thermal conductivity of the first thermally conductive adhesive layer is greater than the thermal conductivity of the second thermally conductive adhesive layer, and the adhesive strength of the first thermally conductive adhesive layer is less than the adhesive strength of the second thermally conductive adhesive layer.
Absstract of: WO2026054436A1
The present invention relates to an apparatus and a method for manufacturing a secondary battery and, more specifically, to a method and an apparatus for manufacturing a secondary battery by easily checking the degree of impregnation by an electrolyte. To this end, according to one embodiment of the present invention, a method for manufacturing a pouch-type secondary battery may be provided, the method comprising: a pre-aging step for inserting an electrode assembly into a pouch case and assembling same, and injecting an electrolyte into the pouch case and sealing the pouch case; and an impregnation checking step for, after the pre-aging step, pressing the outer surface of the pouch case through a pad sensor having a plurality of nodes, and checking the degree of impregnation of the electrode assembly by the electrolyte on the basis of the deviation of pressures sensed through the plurality of nodes.
Absstract of: WO2026054425A1
The present invention relates to a battery cell array capable of increasing cooling efficiency, and a battery pack and a vehicle comprising same, and provides a battery cell array, and a battery pack and a vehicle comprising same, the battery cell array being characterized by comprising: a plurality of battery cells arranged in n rows in a predetermined length; and cooling tubes which cool the plurality of battery cells and come into contact with the plurality of battery cells so as to surround at least a portion of each of the plurality of battery cells, wherein n cooling tubes are provided in one-to-one correspondence with the plurality of battery cells arranged in the n rows.
Absstract of: WO2026054366A1
Provided is an electrode assembly according to exemplary embodiments of the present invention. The electrode assembly comprises positive and negative electrodes, a separator therebetween, and an insulation member, wherein the insulation member comprises one or more holes overlapping with positive and negative electrode. The electrode assembly allows ions to move through the one or more holes and may be a jelly roll-type that is wound around a first direction as the axis.
Absstract of: WO2026054535A1
Disclosed is a foil exposure inspection device for improving inspection accuracy, the foil exposure inspection device comprising: a camera module for capturing an image of the surface of an object; a lighting module that irradiates the surface of the object with light; and a processor that performs a process for inspecting whether surface defects of the object are present by processing the image acquired by the camera module, wherein the processor preprocesses the image on the basis of at least one preset parameter, inspects whether surface defects of the object are present on the basis of the preprocessed image, and generates and outputs an inspection result screen that displays the inspection result, the preprocessed image, and the at least one parameter.
Absstract of: WO2026054633A1
The present invention relates to a cleaner, comprising: a main body housing in which a suction motor that generates a suction airflow is accommodated; a battery including a battery cell that supplies power to the suction motor; and a handle disposed between the suction motor and the battery and configured to be gripped, wherein the handle has a cooling channel formed thereinside, through which at least a portion of air discharged from the suction motor flows, and the battery includes a ventilation opening in communication with the cooling channel, such that a portion of the air discharged from the suction motor can circulate air inside the battery.
Absstract of: WO2026054637A1
Disclosed is an all-solid-state battery using a non-carbon-based tungsten oxide cathode additive having high conductivity and high safety. The cathode additive according to an embodiment comprises a tungsten oxide having an oxygen vacancy, and the tungsten oxide can replace a carbon-based conductive material in a cathode composite compound for an all-solid-state battery.
Absstract of: WO2026054534A1
The present invention relates to a method for manufacturing a lithium secondary battery electrode, a lithium secondary battery electrode manufactured using same, and a lithium secondary battery comprising same, the method comprising the steps of: making one surface of an electrode active material layer come in contact with a transfer laminate in which a substrate layer and a lithium metal layer are in direct contact with each other, so that the electrode active material layer and the lithium metal layer face each other; and pressing, at a pressure of 6 kgf/cm2 or less, and aging the electrode active material layer in contact with the transfer laminate, wherein the transfer laminate is formed by making the lithium metal layer come in contact with one surface of the substrate layer and rolling same.
Absstract of: WO2026054629A1
The present invention provides a composite cathode for an all-solid-state secondary battery, characterized by comprising a cathode active material and a composite electrolyte comprising a sulfide-based solid electrolyte and a transition metal-containing chloride-based solid electrolyte. By providing stable and excellent electron/ion transfer pathways at high voltage, the composite cathode is capable of improving the lifespan and charge/discharge characteristics of the all-solid-state secondary battery.
Absstract of: WO2026054537A1
A method of preparing a raw material for a lithium iron phosphate positive electrode, according to one embodiment, comprises the steps of: extracting valuable metals from a metal oxide-based waste positive electrode material and preparing an extraction residue containing phosphorus as an impurity; adding, to the extraction residue, an iron-containing precipitating agent that forms a precipitate with phosphorus and recovering the precipitate; washing the recovered precipitate and then drying same; and calcining the dried precipitate.
Absstract of: WO2026054493A1
An insulating composition according to an embodiment of the present invention comprises a solid portion at a content of 35 wt % or less with respect to the total weight thereof, wherein the solid portion comprises inorganic particles, a polymer material, and clay, the clay has positive and negative charges distributed in the particles and is included in an amount of 0.01 parts by weight to 10 parts by weight with respect to 100 parts by weight of the solid portion, and the polymer material comprises a functional group-containing polymer. The insulating composition exhibits low viscosity at high shear rates and high viscosity at low shear rates, thereby providing excellent coating processability. During formation of an insulating layer, sliding portions are minimized so that the insulation width can be formed narrowly, thereby preventing a problem in which the positive/negative electrode capacity ratio may be reversed due to sliding portions.
Absstract of: WO2026054524A1
The present invention relates to a sulfide-based solid electrolyte represented by chemical formula 1, a manufacturing method therefor, and an all-solid-state battery comprising same. Chemical formula 1 Li7-b-c-(a×d)MaPS6-b-cClbBrc In chemical formula 1, M is at least one selected from metals satisfying expression 1, a satisfies 0.01≤a≤0.5, b satisfies 0.2≤b≤1.5, c satisfies 0.2≤c≤1.5, d denotes d in an M cation (Md+) with valence d+, b and c satisfy 0.4≤b+c≤1.5, and a, b, c, and d satisfy 5<7-b-c-(a×d)<5.6. Expression 1 0.2<(rM/d)/(rLi)<0.7 In expression 1, rM indicates a hexacoordinate ionic radius (Shannon radius) of the cation Md+ with valence d+, d denotes d in an M cation (Md+) with valence d+, and rLi indicates a hexacoordinate ionic radius of Li+.
Absstract of: WO2026054497A1
According to one aspect of the present invention, an insulating composition comprises 35 wt % or less of solid content with respect to the total weight, and is characterized by the solid content comprising inorganic particles and a polymer material, having a viscosity of 4,000 mPa·s or greater at a shear rate 0.0251 s-1, and having a viscosity of 400 mPa·s or less at a shear rate 251 s-1. The insulating composition has a low viscosity at a high shear rate and a high viscosity at a low shear rate, thereby having excellent coating processability, and can form a narrow insulating width by minimizing a sliding part when forming an insulating layer, thereby preventing the problem that a positive/negative electrode capacity ratio that may occur due to the sliding part is reversed.
Absstract of: WO2026054437A1
The tension control system of a roll-to-roll facility related to the present embodiment may comprise: a load cell which comprises an unwinder provided to unwind a substrate, a rewinder provided to wind the substrate, and transfer rolls arranged between the unwinder and the rewinder to guide travelling of the substrate, and is provided to measure a vertical load of the travelling substrate; a friction coefficient measuring unit provided to measure a friction coefficient between the travelling substrate and the transfer rolls; a dancer roll which guides the travelling of the substrate and is provided to be movable in a direction perpendicular to the width direction of the substrate; and a tension controller provided to receive a measured value input from the load cell and a measured value input from the friction coefficient measuring unit to control operation of the dancer roll so as to control tension of the travelling substrate.
Absstract of: WO2026054440A1
The present invention relates to a cathode active material, and a cathode and a lithium secondary battery which comprise the cathode active material. The cathode active material comprises: a lithium iron phosphate-based compound having an olivine structure; and a coating portion formed on the lithium iron phosphate-based compound and containing carbon and nitrogen, wherein the value of X1 according to equation 1 described in the present specification is 0.550-0.850, and the value of X2 according to equation 2 described in the present specification is 0.0030-0.0065.
Absstract of: WO2026054405A1
According to exemplary embodiments of the present invention, provided is a battery pack. The battery pack comprises: a pack housing including a base plate; a cooling channel which is in the base plate and includes a first sub-flow path and a main flow path for supplying cooling water to the first sub-flow path; a first battery cell assembly which is on the base plate and overlaps the first sub-flow path in a first direction; and a blocking member located inside the first sub-flow path, wherein the blocking member may include a bimetal part comprising a first metal and a second metal which are arranged in the first direction and which have different coefficients of thermal expansion.
Absstract of: WO2026054449A1
The purpose of the present invention is to provide an apparatus and a method for separating two electrode plates for a secondary battery. According to the present invention, the apparatus for separating two electrode plates for a secondary battery comprises: a pickup main frame (130); and a pickup inversion unit supported by the pickup main frame (130) and configured to pick up one electrode plate (10) among multiple electrode plates (10) stacked in a stack magazine (132) of the pickup main frame (130) and invert the one electrode plate (10). In the present invention, unlike the prior art, electrode plates can be reliably picked up one at a time rather than two at a time, thereby solving the problem of disruptions occurring in the pickup and placement process of secondary battery electrode plates, and further solving the problem of disruptions occurring in the overall manufacturing process of a secondary battery.
Nº publicación: WO2026054441A1 12/03/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
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Absstract of: WO2026054441A1
A tension control system of a roll-to-roll facility, according to an embodiment of the present invention, may comprise: an unwinder provided to unwind a substrate; a re-winder provided to wind the substrate; and transfer rolls arranged between the unwinder and the re-winder to guide movement of the substrate. In addition, the tension control system of a roll-to-roll facility may comprise: a friction coefficient measurement unit including a measurement roll having a sensor provided on the surface thereof, wherein the measurement roll is arranged between the transfer rolls to measure a friction coefficient due to friction with the moving substrate; a dancer roll provided to guide the movement of the substrate while moving up and down in a direction perpendicular to the width direction of the substrate so that the tension of the substrate is changed; and a tension controller provided to control the operation of the dancer roll on the basis of the measured value of the friction coefficient measurement unit.
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