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1729
results.
Updated on
19/03/2026 [07:23:00]
Results 325 to 350 of 1729
Absstract of: US20260074227A1
The present disclosure relates to an electrode for a secondary battery and a secondary battery including the electrode. According to embodiments of the present disclosure, the electrode for a secondary battery includes: an electrode current collector, a first electrode active material layer disposed on the electrode current collector, and including a first electrode active material, a first binder including a fluorine-based binder and a first solid electrolyte; and a second electrode active material layer disposed on the first electrode active material layer, and including a second electrode active material, a second binder including a hydrocarbon-based binder and a second solid electrolyte.
Absstract of: US20260074217A1
A cathode active material for secondary battery according to the present disclosure includes lithium metal oxide particles. The lithium metal oxide particles include nickel, include or do not include cobalt, and have a single particle structure. Based on a total number of moles of elements excluding lithium and oxygen in the lithium metal oxide particles, a content of nickel is 70 mol % to 85 mol %, and a content of cobalt is 0.1 times or less than the content of nickel. A (104) plane grain size of the lithium metal oxide particles calculated through X-ray diffraction (XRD) analysis is 400 nm to 700 nm.
Absstract of: WO2026051345A1
Disclosed are a blade battery and a battery pack having same. The blade battery comprises at least one positive electrode sheet, a plurality of negative electrode sheets, a positive electrode cover plate and a negative electrode cover plate. A first tab and a second tab are respectively provided on two adjacent edges of the positive electrode sheet. The plurality of negative electrode sheets respectively cover two opposite sides of the positive electrode sheet, a third tab and a fourth tab are respectively provided on two adjacent edges of each negative electrode sheet, the positive electrode sheet and the negative electrode sheets are stacked, with the edges thereof flush with each other, the first tab and the third tabs are respectively located on two opposite sides of the blade battery, and the second tab and the fourth tabs are respectively located on two opposite sides of the blade battery. The positive electrode cover plate is located on two adjacent edges of the blade battery, and the positive electrode cover plate is connected to the first tab and the second tab to form a positive electrode. The negative electrode cover plate is located on two adjacent edges of the blade battery, and the negative electrode cover plate is connected to the third tabs and the fourth tabs to form a negative electrode.
Absstract of: WO2026051336A1
Provided are an electrolyte, a battery and an electric device. The electrolyte comprises an organic solvent and a lithium salt. The organic solvent comprises an ionic liquid, a co-solvent and a diluent. The co-solvent comprises an ether solvent. The diluent comprises one or more of the following structural formulas: wherein in structural formula I to structural formula III, R1-R18 are each independently selected from H, F, a C6-C26 fluorine-substituted phenoxy and a C1-C20 fluorine-substituted alkyl; and R1-R8 are not H at the same time, R9-R14 are not H at the same time, and R15-R18 are not H at the same time. A stable negative electrode SEI is generated by using a cyclic fluoroether with a weak coordination capability. The use of the ionic liquid in cooperation with the other components drives a large number of anions to enter an Li+ solvation sheath layer, and the ionic liquid can also participate in the adjustment and control of a solvation structure by means of a series of weak interactions. In the case of the solvation structure being controlled by the ionic liquid, multiple instances of adjustment and control of the interface are completed. The operating temperature of a battery is widened, the cycling life thereof is long, the energy is high and the power density is high, and the high-voltage cycling stability and safety of the battery is also improved.
Absstract of: WO2026051312A1
An electric device. The electric device comprises a battery pack or batteries, the battery pack comprises batteries, each battery comprises battery cells, each battery cell comprises electrode sheets, and each electrode sheet comprises a current collector and a coating layer. The coating layer is provided on the current collector, a thinned region is formed on the coating layer, and the thickness of the thinned region is less than the thickness of other portions of the coating layer.
Absstract of: WO2026050900A1
A battery cell (5), a battery apparatus and an electrical apparatus. In the battery cell (5), a positive electrode active material comprises lithium-containing phosphate having an olivine structure; the average particle size Dv50 of a negative electrode active material is 8 um to 15 um, and the negative electrode active material comprises graphite; a negative electrode current collector comprises a negative electrode current collecting portion (112a) and at least two negative electrode tabs provided on the same side of the negative electrode current collecting portion (112a), the negative electrode tabs extending from the negative electrode current collecting portion (112a) in a first direction (F1), the distance between the center lines (L) of any two adjacent negative electrode tabs being 10 mm to 350 mm, and the center line (L) being parallel to the first direction (F1).
Absstract of: US20260070003A1
Provided is an electrode slurry storage apparatus for a secondary battery, the apparatus comprising: a slurry storage tank storing an electrode slurry for a secondary battery; a degassing blade accommodated inside the slurry storage tank; and a negative pressure pump which is connected to the slurry storage tank and puts the inside of the slurry storage tank into a negative pressure state, wherein the degassing blade physically strikes air bubbles in the upper part of the slurry storage tank.
Absstract of: US20260070149A1
An ultrasonic welding method including arranging a pressing force measuring anvil including a pressing force measuring sensor under a horn, moving the horn downward, pressing the pressing force measuring anvil, and measuring a pressing force of the horn using the pressing force measuring sensor, comparing the measured pressing force of the horn with a preset pressing force range and controlling a down stroke of the horn so that the pressing force of the horn is within the preset pressing force range, changing the pressing force measuring anvil with a welding anvil and positioning the welding anvil under the horn after the down stroke of the horn is adjusted, supporting welding target members on the welding anvil, and moving the horn by the adjusted down stroke and ultrasonically welding the welding target members on the welding anvil.
Absstract of: US20260070301A1
A method and system for extruding multiple laminated flow streams using microlayer extrusion, and in particular to creating and forming products with electrical properties that are formed from layers and particles with dimensions in the micro to nanometer range.
Absstract of: US20260070791A1
According to various embodiments of the present invention, a silicon composite may include: pure silicon grains; and a buffer layer coated on the surface of the pure silicon grains. A method for manufacturing the silicon composite according to various embodiments of the present invention may include: a step of pulverizing metallurgical-grade silicon particles; and a step of forming a buffer layer layer on the surface of the pulverized metallurgical-grade silicon grains. An anode for a secondary battery according to various embodiments of the present invention may include the silicon composite. A secondary battery according to various embodiments of the present invention may include the anode.
Absstract of: US20260070790A1
Provided are a negative electrode material and a preparation method therefor, a negative electrode plate and a preparation method therefor, an energy storage device, and an electricity-consumption device. The negative electrode material includes hard carbon. The hard carbon has a porous structure and satisfies: 0.32≤Dv50/1000V≤2.40. Dv50 of the hard carbon is in unit of μm; and V represents a total volume of pores in the hard carbon, in unit of cm3/g.
Absstract of: US20260070789A1
Disclosed is a method for synthesizing lithium iron phosphate using anhydrous amorphous iron phosphate. The method includes the following steps: mixing an anhydrous amorphous iron phosphate, a lithium source, an organic carbon source, and a liquid alcohol to obtain a wet mixture; grinding the wet mixture to obtain a slurry, and subjecting the slurry to spray drying to obtain a lithium iron phosphate precursor powder; and calcining the lithium iron phosphate precursor powder in a protective gas atmosphere to obtain an olivine lithium iron phosphate. An anhydrous amorphous iron phosphate is used as a raw material.
Absstract of: US20260070470A1
A method for controlling fuel cell power generation may comprise: obtaining at least one or more of a vehicle speed limit of a forward driving road, whether there is a gradient and gradient data as forward driving information; calculating a total amount value of expected battery output energy based on the obtained forward driving information; and determining a fuel cell power generation output value in a current driving segment in order to charge or discharge a battery based on the total amount value of the expected battery output energy.
Absstract of: US20260074548A1
A method of determining a battery charging state includes measuring a voltage of a battery by a voltage measuring unit, calculating a compensation voltage for compensating for a voltage drop caused by a second resistance of a connection module disposed between the battery and the voltage measuring unit, and charging the battery, based on a total voltage defined as a sum of the compensation voltage and a cut-off voltage that is determined by a first resistance of the battery.
Absstract of: WO2026052108A1
Provided in the present invention is a preparation method for a multilayer reinforced alkali-water composite separator, comprising the following steps: step S1: preparing raw materials, the raw materials comprising polysulfone, zirconium dioxide, polyethylene glycol, polyvinylpyrrolidone, potassium chloride, methylpyrrolidone and a PEEK woven mesh; step S2: preparing a slurry; and step S3: preparing a separator. The present invention has the following beneficial effects: a PEEK woven mesh is used as a reinforced skeleton layer, the melting point of a PEEK material is 340°C, while the melting point of pps is about 280°C, such that the heat resistance of the PEEK material is significantly higher than that of a pps mesh cloth, and for future application in high-temperature alkaline electrolytic cells (>100°C), the heat resistance and safety of separators are greatly improved.
Absstract of: WO2026051580A1
Disclosed in the present application are a battery cell, a battery device, and an electric device. The battery cell comprises a housing, an electrode assembly, and a first electrode terminal and a second electrode terminal having opposite polarities. The housing has a first wall, wherein the first wall is made of steel, and the thickness of the first wall is greater than or equal to 0.2 mm and less than or equal to 1.5 mm. The electrode assembly is disposed inside the housing. In a first direction, the first electrode terminal and the second electrode terminal are spaced apart on the first wall, and the first electrode terminal and the second electrode terminal are electrically connected to the electrode assembly; the first direction is the lengthwise direction of the first wall. In the first direction, the center-to-center distance between the first electrode terminal and the second electrode terminal is a, and the length of the first wall is b, satisfying 40%≤a/b≤90%. The technical solution provided in the present application can effectively improve the reliability of the battery device.
Absstract of: WO2026051513A1
The present application relates to the technical field of batteries, and specifically relates to a silicon-carbon composite material, and a preparation method therefor and the use thereof. The silicon-carbon composite material of the present application comprises a silicon nanosheet and a composite carbon structure located on the surface of the silicon nanosheet, wherein the composite carbon structure comprises a carbon framework and S, and the carbon framework and S form an S-C bond. The silicon-carbon composite material of the present application has great structural stability, can improve the ion and electron conductivity of a silicon negative electrode, and forms a three-dimensional ion- and electron-conducting path inside the silicon negative electrode, thereby ameliorating the problem of capacity attenuation of a pure silicon negative electrode during a cycling process, so as to achieve stable long-cycling performance and obtain a high capacity retention rate.
Absstract of: US20260074230A1
A modified electrode plate includes an electrode plate, the electrode plate having element sodium or element lithium on its surface, and the electrode plate including a pre-lithiated negative electrode plate or a pre-sodiated negative electrode plate; a protective film, the protective film including a first group and a hydrophobic group, the first group being attached to the surface of the electrode plate, and the hydrophobic group being distal from the electrode plate and the hydrophobic group including a hydrophobic group and being exposed on a surface of the protective film. Disposing the protective film having the hydrophobic group on the surface of the electrode plate can effectively block water, oxygen, or carbon dioxide in the air so as to effectively prevent water, oxygen, or carbon dioxide from passing through the protective layer to react with active components in the electrode plate.
Absstract of: AU2024434583A1
Problem To provide an information processing device, an information processing method, a computer program, and an information processing system that make it possible to estimate the timing at which a target event will occur at a target storage battery that includes a plurality of cells. Solution This information processing device comprises a processing part that calculates target trend data that represents the trend in the value of an index for the state of a target storage battery on the basis of measurement data for the target storage battery and estimates the timing at which a target event will occur at the target storage battery on the basis of the target trend data and at least one piece of standard trend data that represents a standard trend in the value of the index for the state of a storage battery during a period from a first time to a second time at which the target event occurs at the storage battery.
Absstract of: AU2025226561A1
The present invention relates to a door opening and closing system applied to a case having an accommodation space therein. The door opening and closing system according to an embodiment of the present invention includes: a door unidirectionally movable to cover the accommodation space; a rod bar coupled to the door; a handle coupled to the rod bar; a roller support coupled to the rod bar and moving integrally with the rod bar; a roller coupled to an end of the roller support; and a roller bracket coupled to the case. When a user moves the handle up and down, the rod bar moves integrally with the handle. The roller bracket extends along a moving path of the roller and includes a rail corresponding to the roller.
Absstract of: AU2025260165A1
A battery system according to an embodiment of the present invention comprises: lower control devices that individually control a plurality of batteries; and an upper control device that manages the plurality of lower control devices, wherein at least one of the lower control devices may identify the operating state of the battery system, and when the battery system is initialized and operating, may identify an identifier pre-stored in a storage space and perform initialization by itself.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Nº publicación: US20260074286A1 12/03/2026
Applicant:
DUKSAN ELECTERA CO LTD [KR]
DUKSAN ELECTERA CO., LTD
Absstract of: 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.
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