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1455
resultados
Última actualización
14/08/2025 [07:17:00]
Resultados 225 a 250 de 1455
Resumen de: WO2025162297A1
Provided in the present application are a negative electrode active particle and a preparation method therefor, and a negative electrode sheet, a battery and an electronic device. The negative electrode active particle of the present application comprises: a skeleton, which has a plurality of pores; and silicon particles, which are located in the plurality of pores, wherein there are gaps between the silicon particles and the inner walls of the pores, and the widths of the gaps range from 0.4 nm to 1 nm. The negative electrode active particle has a first X-ray diffraction pattern, and in the first X-ray diffraction pattern, the gaps and the silicon particles satisfy a relational expression 0.6≤Ia/Ib≤0.95, wherein Ia is the minimum value of diffraction intensity in the first X-ray diffraction pattern when 2θ ranges from 8.8° to 22°, Ib is the intensity of a diffraction peak of Si(111) in the first X-ray diffraction pattern when 2θ ranges from 28.2° to 28.5°, and 2θ is a diffraction angle. The negative electrode active particle of the present application has a low expansion rate and a high cyclic capacity retention rate.
Resumen de: WO2025161889A1
A polyimide material and a use thereof. The repeating unit of the polyamide material comprises a specific dianhydride residue and a specific diamine residue, which can ensure that the polyamide material has a porous structure having a pore diameter of less than or equal to 2 nm. The polyamide material is particularly suitable for coating a lithium battery negative electrode active material having a large volume expansion effect, and does not reduce the dynamic performance thereof.
Resumen de: WO2025164590A1
The present invention provides: an electrode composite which is a laminate of a positive electrode layer and a solid electrolyte layer, has good contact between electrode active material particles and solid electrolyte particles, is not susceptible to the occurrence of a short circuit, and can achieve good battery output power; a secondary battery which uses the electrode composite, has a high output power, and is capable of reducing the risk of a short circuit; and a method for manufacturing the same. Provided is an electrode composite which is applied to a secondary battery. The electrode composite includes a positive electrode active material layer and an electrolyte layer. The positive electrode active material layer has a first surface that is in contact with the electrolyte layer and a second surface that is located on the opposite side of the first surface while including a plurality of first active material particles and a plurality of second active material particles that have a higher average aspect ratio than the plurality of first active material particles. The position of the center of gravity of the plurality of second active material particles is located at the farther side from the first surface than the position of the center of gravity of the plurality of first active material particles.
Resumen de: WO2025165195A1
The present invention relates to an optical system-based control method and a vision inspection device and, more specifically, to a vision inspection device for using an optical system to inspect the appearance of a secondary battery and a control method therefor. According to an embodiment of the present invention, provided may be the vision inspection device comprising: an optical system including a camera for acquiring an image by imaging a secondary battery and a lighting device for supplying light to the periphery of the secondary battery; and a main controller for determining, on the basis of the image acquired via the optical system, whether the secondary battery is defective. The main controller includes a lighting controller that corrects and controls the illuminance of the lighting device to supply the light at a standard illuminance by selecting a weight for correcting the illuminance of the lighting device to the standard illuminance and applying, to the lighting device, a correction control value obtained by reflecting the weight to a standard control value.
Resumen de: WO2025165199A1
An apparatus for diagnosing a battery, according to one embodiment of the present invention, comprises: a profile acquisition unit for acquiring a battery profile that indicates a correspondence relationship between the voltage and the capacity of a battery; a profile adjustment unit, which adjusts a preset reference cathode profile and reference anode profile in correspondence to a battery profile, thereby generating an adjusted cathode profile and an adjusted anode profile; and a control unit for extracting a diagnostic factor for the battery from the adjusted cathode profile and/or the adjusted anode profile, and diagnosing the state of the battery on the basis of the extracted diagnostic factor.
Resumen de: WO2025165175A1
Provided are a method for manufacturing an aramid nanofiber-based hybrid thin film, a thin film manufactured thereby, and a lithium secondary battery comprising same. The aramid nanofiber-based hybrid thin film comprises: aramid nanofibers; an interpenetrating polymer network including a polymer infiltrated between the aramid nanofibers and having a porous network structure; and inorganic particles dispersed in the interpenetrating polymer network, and thus, when applied to a lithium secondary battery, the growth of lithium dendrites can be effectively inhibited.
Resumen de: WO2025162100A1
Provided in the present application are a battery cell and an electric device. The battery cell comprises a laminated electrode assembly, wherein the electrode assembly comprises a plurality of first electrode sheets and a plurality of second electrode sheets, which are stacked in a first direction; a corner of each first electrode sheet has a first notch and a first empty foil area; a corner of each second electrode sheet has a second notch and a second empty foil area; when observed in the first direction, the first empty foil area at least partially overlaps with the second notch, the second empty foil area at least partially overlaps with the first notch, and the first empty foil area is spaced apart from the second empty foil area; and a plurality of first empty foil areas are stacked in the first direction, and a plurality of second empty foil areas are stacked in the first direction. Therefore, a space that is reserved between the electrode assembly and a housing and used for accommodating the first empty foil areas and the second empty foil areas can be reduced, the energy density of the battery cell can be improved, and when the battery cell is subjected to an external force or falls, the electrode assembly is less likely to shake relative to the housing, and the battery cell is also less likely to experience a short circuit.
Resumen de: WO2025162070A1
The present application discloses a battery cell, a secondary battery, and an electric device. The battery cell comprises a plurality of electrode sheets; each electrode sheet comprises a current collector and active substance coatings; the electrode sheet has a first region covered with the active substance coatings and a second region not covered with the active substance coatings; the first region is provided with a clearance notch; the second region forms a tab of the battery cell; among the plurality of stacked electrode sheets, for two adjacent electrode sheets, the first region of one electrode sheet is provided with a clearance notch so as to expose the second region of the other electrode sheet; the width of the electrode sheet is W mm, the area of the clearance notch is S1 mm2, the area of the second region is S2 mm2, and the thickness of the battery cell is H; when H is greater than 7 mm, S1+S2＜A*W is satisfied, and A is 3.6 mm; or, when H is less than or equal to 7 mm, S1+S2＜B*W is satisfied, and B is 1.6 mm. By means of such design, when a bare battery cell is formed by stacking, the tabs are accommodated in the main body region of the bare battery cell, and there is no need to perform multi-tab transfer welding, thereby improving space utilization; moreover, by setting the maximum value of S1+S2, it is ensured that the overall energy density of the battery cell is increased.
Resumen de: WO2025161765A1
The present application provides a heat exchange component, a battery, and an electric device. The heat exchange component comprises a heat exchange plate and a support member. A heat exchange channel is provided in the heat exchange plate. The support member is arranged in the heat exchange channel, and two ends of the support member are respectively connected to walls of the heat exchange channel. By providing the support member in the heat exchange channel, the pressure bearing capacity of the heat exchange plate is improved, the problems in the prior art of clogging in the heat exchange component, low heat exchange medium capacity of the heat exchange plate, and excessive weight of the heat exchange component, which are caused by using the solutions of increasing the wall thickness of the heat exchange channel and reducing the diameter of the heat exchange channel in order to maintain the pressure bearing capacity of the heat exchange component, are mitigated, the heat exchange effect and reliability of the heat exchange component are improved, and the energy density of the battery is increased.
Resumen de: WO2025165171A1
The present invention relates to a sulfide-based solid electrolyte and an all-solid-state battery comprising same. More specifically, the present invention relates to a sulfide-based solid electrolyte comprising lithium (Li), phosphorus (P), sulfur (S), and chlorine (Cl), wherein the phosphorus (P) site is substituted by a heterogeneous element, and when two or more selected from the group consisting of Ge, Sn, Sb, and Si are substituted at equivalent ratios, the ionic conductivity in the sulfide-based solid electrolyte can be improved.
Resumen de: WO2025165168A1
Disclosed are an anode and an electrochemical device comprising same, the anode comprising: a current collector; and an anode active material layer positioned on at least one surface of the current collector. The anode active material layer comprises: granules comprising a silicon-based active material, a linear conductive material, and a binder; and a fiberized fluorine-containing binder for connecting and fixing the granules to each other.
Resumen de: WO2025165170A1
The present invention relates to a Janus separator for a lithium metal secondary battery, a method for manufacturing same, and a lithium metal secondary battery comprising same, the Janus separator comprising: a separator; and a carbon nanotube assembly coated on one surface of the separator and containing an amine group-containing linker and carbon nanotubes surface-modified with a carboxyl group.
Resumen de: WO2025165084A1
The technical idea of the present invention relates to a battery pack. The battery pack comprises: a base plate including a lower cooling channel; a cell assembly, which is arranged on the base plate and includes a plurality of battery cells; a top plate, which is arranged on the cell assembly and has an upper cooling channel; a front end frame having a first side cooling channel that communicates with the upper cooling channel; a rear end frame having a second side cooling channel that communicates with the upper cooling channel and the lower cooling channel; an inlet pipe having an inlet channel that communicates with the first side cooling channel and transfers, to the first side cooling channel, a cooling fluid provided from the outside; and an outlet pipe having an outlet channel that communicates with the lower cooling channel.
Resumen de: WO2025164299A1
Provided is a cooling heat exchanger of a novel structure with which it is possible to achieve high heat exchange efficiency with respect to a cooling object while facilitating work for mounting the cooling object. A cooling heat exchanger (10) cools a cooling object (36) that flows through a cooling flow path (20) inside of which a cooling heat transfer medium is formed, whereby the cooling object (36) is superposed on a cooling surface (14) provided to a surface. A thermoconductive material layer (26) is disposed on the cooling surface (14). The thermoconductive material layer (26) is a thermoconductive elastic body comprising a molded body of an elastic material in which a thermoconductive filler (30) is mixed. A thermally conductive filler layer (28) is provided between the overlapping surfaces of the cooling surface (14) and the thermoconductive material layer (26), the filler layer (28) being in close contact with each of the overlapping surfaces of the cooling surface (14) and the thermoconductive material layer (26).
Resumen de: WO2025162064A1
Disclosed in the present application are a battery cell and an electrical device. The battery cell comprises a casing and a pressure relief assembly; the casing is provided with an accommodation space and a liquid injection hole communicated with the accommodation space; the pressure relief assembly covers the liquid injection hole; the pressure relief assembly comprises an adapter component, a sealing component and a pressure relief component; the casing, the adapter component, the sealing component and the pressure relief component are sequentially stacked in a first direction; the adapter component comprises a first main body part and a first weld mark part; the projection of the sealing component on the adapter component in the first direction is a first projection; the first projection is located within the first main body part; the first weld mark part is arranged around the peripheral side of the first projection; the first weld mark part and the first projection are spaced apart; and the first weld mark part is welded to the casing. The battery cell provided by the present application is highly safe.
Resumen de: WO2025162083A1
Disclosed in the present invention are a guide apparatus and a battery cell insertion device. The guide apparatus is used for guiding a battery cell into a battery case. The guide apparatus comprises a fixed guide member, at least one movable guide member, and a guide driving assembly, the guide driving assembly is transmittingly connected to the movable guide member, and the guide driving assembly is used for driving the movable guide member to move between at least a first state and a second state. When the movable guide member is in the first state, the movable guide member and the fixed guide member define a first guide channel; and when the movable guide member is in the second state, the movable guide member and the fixed guide member define a second guide channel, the width and/or the height of the cross section of the second guide channel and that of the cross section of the first guide channel are different, and a guide portion is separately formed at an inlet end of the first guide channel and an inlet end of the second guide channel so as to guide the battery cell to be assembled into the battery case. According to the guide apparatus, the operation of insertion of the battery cell into the battery case can be performed on batteries of different sizes and models, improving the production efficiency of the batteries of different sizes and models.
Resumen de: WO2025162058A1
A battery cell and an electric device. The battery cell comprises a case and a pressure relief assembly, wherein the case is provided with an accommodating space and an electrolyte injection hole in communication with the accommodating space; and the pressure relief assembly covers the electrolyte injection hole, and the pressure relief assembly comprises an adapter, a sealing member and a pressure relief member, the case, the adapter, the sealing member and the pressure relief member being stacked in sequence in a first direction, the adapter comprising a first main body portion and a first weld mark portion, the first main body portion being provided with a first side wall arranged in a circumferential direction, and the first weld mark portion connecting the first side wall to the case. The safety of the battery cell is improved.
Resumen de: WO2025165122A1
The present invention relates to a positive electrode material powder and a manufacturing method therefor, the positive electrode material powder comprising a single-particle-type lithium nickel-based oxide, in which the content of nickel among the metals other than lithium is 80 mol% or more, and has a D50 of 5.0㎛ or more and a crystal strain of 280×10-6 or less.
Resumen de: WO2025165136A1
A battery profile generating apparatus according to one embodiment of the present invention comprises: a charging and discharging unit configured to charge and discharge a battery; a measurement unit configured to measure battery information including at least one of the voltage, the current, or the temperature of the battery during charging and discharging processes of the battery; and a control unit configured to determine a target temperature and a target C-rate corresponding to a charging and discharging condition on the basis of a reference profile set in advance to indicate a correspondence relationship between a threshold temperature and a threshold C-rate, control the charging and discharging unit to charge and discharge the battery at the target C-rate when the temperature of the battery corresponds to the target temperature, and generate a battery profile corresponding to the battery on the basis of the battery information.
Resumen de: WO2025165113A1
A battery pack according to an embodiment of the present invention comprises: a plurality of battery cells; a pack frame comprising a bottom frame and side frames forming a receiving space in which the battery cells are received; a spacer positioned on the bottom frame and on which the battery cells are mounted; a holding frame positioned on the spacer and having holes into which the battery cells are inserted; and a refrigerant which flows in the space between the spacer and the holding frame so as to directly cool the battery cells inside the pack frame.
Resumen de: WO2025165161A1
An apparatus for diagnosing a battery, according to an embodiment of the present invention, includes: a profile obtaining unit configured to obtain a battery profile indicating a correspondence relationship between a voltage and a capacity of a battery; and a control unit configured to divide a capacity section of the battery profile into a plurality of sections, derive a target value for any one target index from among a plurality of preset diagnosis indices in each section, compare a correspondence relationship between the derived plurality of target values with a reference profile preset to indicate a correspondence relationship between the plurality of target indices, and diagnose the state of the battery according to a result of the comparison.
Resumen de: WO2025164842A1
The present invention relates to an electric vehicle battery fire monitoring and extinguishing system applying a liftable drill lance device, in which the possibility of a fire break out may be determined in advance by identifying an abnormal heat generation, smoke occurrence, or flame detection state of the lower portion of an electric vehicle, and when a fire occurs, a drill lance device embedded in the ground under the electric vehicle may be automatically and immediately lifted and brought into close contact with the lower portion of a battery of the electric vehicle so as to start extinguishing the fire, and thus the fire break out may be swiftly managed.
Resumen de: WO2025161967A1
A negative electrode active material and a preparation method therefor, a negative electrode sheet, a lithium-ion battery, and an electric device. The lithium-ion battery comprises one or more battery cells (5), the battery cell (5) comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, and the negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises an inner core and a coating layer located on at least part of the surface of the inner core, wherein the inner core comprises graphite, and the coating layer comprises hard carbon; and in the cumulative distribution curve of the R value of the negative electrode active material obtained in the area scanning mode of a laser microscopic confocal Raman spectrometer, from the lower limit, the R value of R50 having a cumulative distribution of 50% is 0.15-0.40. The negative electrode active material can make the battery have both a high energy density, and good dynamic performance and cycle performance.
Resumen de: WO2025161973A1
The present invention provides a lithium battery fast charging converter based on electrochemical impedance spectroscopy (EIS) measurement control and an adjustment method. Before charging, the initial voltage, current and temperature of a lithium battery are measured, and the lithium battery is charged on the basis of an initial state of the lithium battery; and during charging, a perturbation electrical signal formed by superimposing a direct current on a weak sine wave that does not affect the operation of the battery is sent to the lithium battery, EIS measurement and analysis of the lithium battery are performed by means of the EIS technology to obtain state information of the lithium battery, and charging parameters of the charging converter are adjusted on the basis of the state information of the lithium battery. By means of the solution provided by the present invention, the state of a lithium battery is monitored in real time by means of the EIS technology, and charging parameters are dynamically adjusted, so as to implement an efficient, fast and safe charging process.
Nº publicación: WO2025161800A1 07/08/2025
Solicitante:
HUAWEI DIGITAL POWER TECH CO LTD [CN]
\u534E\u4E3A\u6570\u5B57\u80FD\u6E90\u6280\u672F\u6709\u9650\u516C\u53F8
Resumen de: WO2025161800A1
Embodiments of the present application provide an energy storage device and an energy storage system. The energy storage device comprises a container, and a plurality of battery clusters, a plurality of cluster control boxes, a liquid cooling unit, an air-to-liquid heat exchange plate, and a fan which are located in the container; the plurality of cluster control boxes are located in a power distribution compartment and are arranged in one row; the bottom walls of the plurality of cluster control boxes all face the bottom wall of the power distribution compartment, and are spaced apart from the bottom wall of the power distribution compartment to form an air inlet channel; the top walls of the plurality of cluster control boxes all face the top wall of the power distribution compartment, and are spaced apart from the top wall of the power distribution compartment to form an air outlet channel; and the air-to-liquid heat exchange plate is arranged in the power distribution compartment, is located outside the air inlet channel, and is arranged at an air inlet of the air inlet channel. The present application mitigates the overtemperature and derating risks caused by the use of air-to-air heat exchange in power distribution, reduces the power distribution cost of the energy storage device, solves the problem of complex control logic of the energy storage device, achieves accurate temperature control of an energy storage container device, and has an extremely simple system archit
BOPI
Sede Electrónica
