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1238
results.
Updated on
22/07/2025 [07:13:00]
Results 300 to 325 of 1238
Absstract of: WO2025150906A1
The present invention relates to a positive electrode active material and a positive electrode comprising same. The positive electrode active material includes a compound having an olivine structure in a core thereof and represented by chemical formula 1, and thus has high safety and excellent economic efficiency. In addition, the positive electrode active material not only has a core with a large specific surface area by including the compound represented by chemical formula 1, but also can more uniformly include a porous carbon layer on the surface of the core due to being prepared by chemical vapor deposition (CVD) using a solid-state carbon source. Therefore, the positive electrode comprising same has the advantages of having excellent output performance during charging and discharging and having excellent lifespan characteristics.
Absstract of: WO2025151017A1
The present invention relates to a cathode active material, a method for preparing same, and a cathode and a lithium secondary battery each comprising same, wherein the cathode active material comprises: a lithium-rich manganese-based oxide including both a Li2MnO3 phase and a LiM'O2 phase (where, M' is an element including at least one selected from Ni and Mn); and a coating part formed on the lithium-rich manganese-based oxide, the lithium-rich manganese-based oxide containing at least two doping elements (Q) selected from W, Al, Co, Zr, Re, V, Cr, Fe, Ga, Si, B, Ru, Ti, Nb, Mo, Mg, Na, and Pt, the coating part containing at least one coating element (R) selected from Zn, Al, Co, Ti, Nb, V, Mo, W, B, and Ni, and satisfies formula 1 described in the present specification.
Absstract of: WO2025150891A1
The present invention relates to a positive electrode and a manufacturing method thereof. The positive electrode has a positive electrode active layer containing both a first positive electrode active material having an olivine crystal structure and a second positive electrode active material having a layered crystal structure, and thus has a high degree of safety and excellent positive electrode charge/discharge capacity. In addition, the positive electrode includes a first positive electrode active material containing three or more metals other than lithium and represented by chemical formula 1, and thus has the advantages of excellent energy density and output.
Absstract of: WO2025150930A1
A winding apparatus is disclosed. The disclosed invention comprises a push member disposed between an input port and a camera for photographing the input port, which is arranged at one side of a rewinder for winding an electrode and a separator, wherein the push member comprises a protruding plate which is disposed between the camera and the input port, and a photographing passage which opens a part of the push member so that at least a part of the input port can be open toward the camera.
Absstract of: WO2025150875A1
According to an embodiment of the present invention, a cell module assembly comprises: a battery cell stack in which multiple batteries are stacked; a bus bar housing disposed on a surface to which an electrode lead of a battery cell is directed; an inter-connection board (ICB) including a printed circuit board to transmit data between the battery cell and a battery management system (BMS); and a sensing cable for electrically connecting the ICB and the BMS to each other, wherein the bus bar housing includes at least one sensing cable fixing unit protruding from an outer surface of the bus bar housing to fix the sensing cable and having a bent and extending shape, and the sensing cable is inserted and fixed in a gap between the outer surface of the bus bar housing and the sensing cable fixing unit.
Absstract of: WO2025150912A1
The purpose of the present invention is to provide an electrolyte additive, for a lithium secondary battery, represented by chemical formula 1, and an electrolyte for a lithium secondary battery and a lithium secondary battery each comprising same. Chemical formula 1 In chemical formula 1, R1 to <sb />R4 each independently represent hydrogen, deuterium, a C1-C6 alkyl group, or a C3-C6 cycloalkyl group, and n represents an integer of 0 to 2. The electrolyte additive for a lithium secondary battery according to the present invention can enhance the high-temperature lifespan of the lithium secondary battery and improve the capacity recovery rate, thickness increase rate, and resistance increase rate during high-temperature storage.
Absstract of: WO2025150864A1
A cell module assembly, according to one embodiment of the present invention, may comprise: a battery cell stack in which a plurality of battery cells are stacked; and a blocking unit disposed between at least one and at least another one of the plurality of battery cells, wherein the blocking unit may include a plurality of support plates and a first buffer member that is interposed between adjacent support plates.
Absstract of: WO2025150922A1
The present invention relates to a sulfide-based solid electrolyte comprising a lithium element, a phosphorus element, a sulfur element, a halogen element, and a boron-based element while comprising an argyrodite-based compound having an argyrodite crystal structure. The sulfide-based solid electrolyte of the present invention can exhibit improvements in electrochemical stability and stability in the air by substitution of some in the crystal structure with boron-based elements.
Absstract of: WO2025150830A1
The present invention relates to a separator substrate, a separator, an electrode assembly, and an electrochemical device. The separator substrate, according to an embodiment of the present invention, comprises a polyolefin-based porous substrate which has regions with different porosities, wherein a silicone rubber is coated on the region with lower porosity.
Absstract of: WO2025150844A1
The present invention relates to a positive electrode material, and a positive electrode and a lithium secondary battery comprising same, the positive electrode material comprising: a first positive electrode active material having an olivine structure; and a second positive electrode active material which is a lithium nickel-based oxide having a layered structure and having a larger average particle diameter (D50) than that of the first positive electrode active material, wherein the first positive electrode active material has an average particle diameter (D50) of 0.5 ㎛ to 10 ㎛ and contains 2 wt% to 3.5 wt% of carbon (C), and the first positive electrode active material is included in an amount of 35 wt% (inclusive) to 90 wt% (exclusive) with respect to the total weight of the first positive electrode active material and the second positive electrode active material.
Absstract of: WO2025150829A1
According to some embodiments, a simulation system comprises: an interface panel configured to receive an operation input from a worker; a main simulator configured to load, on the basis of the operation input, training content for reproducing processes for manufacturing a cylindrical battery through etching electrodes, and provide the training content to the worker through interaction with the worker; and a display configured to display a detailed image pertaining to the processes on the basis of the characteristics of the training content.
Absstract of: WO2025150841A1
According to exemplary embodiments, a battery pack is provided. The battery pack comprises: a pack housing including a base plate and sidewalls; a plurality of battery cell assemblies arranged on the base plate, each of the plurality of battery cell assemblies including a plurality of battery cells and an integrated circuit assembly that is coupled to the plurality of battery cells and includes a first antenna; a battery management system (BMS) including a second antenna; and a lead coupled to the sidewalls, wherein the lead includes a waveguide overlapping the first antenna of each of the plurality of battery cell assemblies and the second antenna, and includes a base portion and a raised portion spaced farther from the base plate than from the base portion, the waveguide being in the raised portion.
Absstract of: WO2025150828A1
According to some embodiments, the battery inspection system includes: a transfer device configured to transfer a battery cell; an inspection device configured to generate a plurality of inspection images for the battery cell; and a control device configured to determine a correction value for external dimensions of the battery cell on the basis of the plurality of inspection images, and determine whether the battery cell is defective, on the basis of the correction value.
Absstract of: WO2025150825A1
According to an embodiment of the present invention, provided is a secondary battery comprising: an electrode assembly comprising a positive electrode, a negative electrode, and a separator; and an electrolyte, wherein the electrode assembly includes two or more unit cells and one or more insulation materials, and at least one of the one or more insulation materials is located between the two or more unit cells.
Absstract of: WO2025150986A1
A cell tracking method, according to one embodiment of the present disclosure, may comprise the steps of: acquiring a cell ID corresponding to a semi-finished cell; acquiring a holder ID corresponding to a holder in which the semi-finished cell is disposed; and matching the cell ID with the holder ID.
Absstract of: US2025230569A1
A method of manufacturing a composite metal foil includes providing a first metal layer and forming a second metal layer on a surface of the first metal layer through electroplating. The first metal layer is copper foil, nickel foil, stainless steel foil, or a combination thereof. A contact angle of a surface of the second metal layer to liquid lithium metal is lower than 90 degrees.
Absstract of: US2025230045A1
The present invention relates to a method for producing a salt of bis(chlorosulfonyl) imide, which is economically feasible at industrial scale and which provides a high-purity product.
Absstract of: US2025228303A1
A technology is provided that can flexibly adjust power consumption in a system in which a charging device for charging an aerosol generation device communicates with a terminal device, the power consumption being due to the communication. An operating method for a terminal device that communicates with a charging device for charging an aerosol generation device. The method includes a step in which charging information relating to a battery of the charging device is acquired from the charging device; a step in which a charging status of the battery is evaluated on the basis of the charging information; and a step in which the possibility or impossibility of communication between the terminal device and the charging device is determined on the basis of the charging status.
Absstract of: US2025228290A1
An electronic cigarette structure that can be quickly disassembled and assembled is provided, which includes a cigarette holder module, a battery cell module, and a host module. The cigarette holder module is provided with the battery cell module and the host module; the battery cell module includes a battery cell upper cover, a stainless-steel shell, a soft pack battery cell, a charging board, a second Type-C female terminal, and a battery cell lower cover. The host module includes a bracket, a magnet, a conductive pin, a first Type-C male terminal, a scheme board, a first Type-C female terminal, a base, and a button. The electronic cigarette achieves rapid disassembly and assembly through a magnetic suction structure and Type-C interface insertion and extraction structure. On the basis of one-time use, it realizes functions of recycling and disassembly, extends the service life of the product, and reduces environmental pollution.
Absstract of: US2025230286A1
Disclosed are chemically end-capped polypiperazine pyrophosphate-modified ammonium polyphosphate with high temperature resistance and precipitation resistance, a preparation method therefor, and an apparatus and application thereof. The chemically end-capped polypiperazine pyrophosphate-modified ammonium polyphosphate flame retardant is formed by polypiperazine pyrophosphate modification based on ammonium polyphosphate, followed by end capping; and the polypiperazine pyrophosphate is prepared by polymerization of an intermediate piperazine diphosphate obtained through dehydration condensation of phosphoric acid and piperazine. The chemically end-capped polypiperazine pyrophosphate-modified ammonium polyphosphate flame retardant of the present solution is prepared by using special equipment, which ensures whiteness and thermal stability of product, and improves properties of ammonium polyphosphate. The chemically end-capped polypiperazine pyrophosphate-modified ammonium polyphosphate flame retardant is further applied to preparation of flame-retardant polypropylene, so that flame-retardancy, temperature resistance and precipitation resistance of the flame retardant in a polypropylene system can be improved.
Absstract of: US2025231244A1
Provided are wireless acquisition device and method for battery safety monitoring of a battery cluster. The device includes a wireless acquisition side, and a wireless reception side. The wireless acquisition side is fixedly arranged on a single battery in a battery module box, and both ends of the wireless acquisition side are electrically and respectively connected to a cathode and an anode of the single battery where the wireless acquisition side is located, and configured to acquire a temperature, a voltage and a current of a battery cell, an atmospheric pressure in the battery module box, and gas composition in a sealed space. The wireless reception side is configured to receive data collected by the wireless acquisition side through wireless transmission, perform edge data processing on the data, and then transmit the data to a battery thermal management system.
Absstract of: US2025231125A1
The present invention relates to a method for calculating battery capacity characteristics, the method including: a negative electrode preparation step for preparing a negative electrode in which graphite and a SiO-based material to be tested are mixed; a charging step for charging a battery including the negative electrode; a data collection step for observing the negative electrode using XRD and thereby collecting time series data for CLi which is the peak value of Li, C6(t) which is the peak value of Li2C12, and C12(t) which is the peak value of LiC12; and a parameter calculation step for calculating parameter K, which is a parameter indicating the battery capacity characteristics, on the basis of the CLi, C6(t), and C12(t) when the time differential value for the C6(t) or the C12(t) is 0, and to a battery in which the value of parameter K is at least 12 times the weight fraction of the SiO-based material in the negative electrode.
Absstract of: US2025230978A1
A drying device includes a solvent supply unit for spraying a solvent onto a non-coated portion, the solvent supply unit including a main flow path sequentially passing through N solvent spray nozzles disposed along a width direction (TD), a sub-flow path branched from the main flow path, and a valve located at a branching point thereof, which may be configured to close the main flow path to allow solvent to flow into the sub-flow path by operation of the valve.The drying device is such that the solvent supply to some of the solvent spray nozzles of the plurality of solvent spray nozzles that do not require solvent spray can be blocked by causing the valve to divert the solvent into a sub-flow path. Thus, depending on the type of electrode coating, it is not necessary to change the design of the solvent supply unit.
Absstract of: US2025231243A1
Proposed is a fuzzy-logic-based method for calculating the state safety of an energy storage system. The method may be performed by a state safety calculation apparatus. The method may also include defining a voltage safety membership function and a temperature safety membership function, and collecting information about charging state, voltage, and temperature from the energy storage system. The method may further include calculating integrated levels of safety by applying a fuzzy rule to the voltage safety membership function and the temperature safety membership function with respect to the collected information. The method may further include calculating the total integrated level of safety by summing the calculated integrated levels of safety; and calculating the momentary integrated level of safety through defuzzification of the total integrated level of safety.
Nº publicación: US2025233125A1 17/07/2025
Applicant:
EVE POWER CO LTD [CN]
EVE POWER CO., LTD
Absstract of: US2025233125A1
The present disclosure provides a lithium iron phosphate battery and a hybrid vehicle. The lithium iron phosphate battery includes a first cathode active material, a second cathode active material, a first anode active material, and a second anode active material. A median particle size of the first cathode active material is different from a median particle size of the second cathode active material. A median particle size of the first anode active material is different from a median particle size of the second anode active material.
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