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1111
resultados
Última actualización
02/09/2024 [07:41:00]
Resultados 575 a 600 de 1111
Resumen de: US2024282976A1
For making battery electrodes, a composite strip of a cast ribbon of an electrically conductive metal attached to and extending along an edge of a web of electrically conductive carbon fiber material, also called a carbon felt in some examples, with a plurality of spaced apart notches cast in the ribbon and opening to an edge of the ribbon spaced from the carbon fiber material. A rotatable drum with a mold cavity and a confronting casting shoe for supplying molten metal, such as liquid lead, to the cavity may be used in a casting machine to continuous cast the composite strip.
Resumen de: US2024283099A1
A battery cell, a battery, a power consumption device, and a method and device for producing a battery cell are provided. The battery cell includes: a housing which has an accommodating cavity and an opening at one end. The housing has a first wall which is adjacent to the opening; an electrode terminal, disposed on the first wall; an electrode assembly, accommodated in the accommodating cavity and having a tab; and a connecting component which is configured to electrically connect the electrode terminal and the tab and includes a first portion and a second portion that are relatively bent. The first portion is configured to be electrically connected to the electrode terminal, the second portion is configured to be electrically connected to the tab, and the tab is located between the second portion and the opening or the second portion is located between the tab and the opening.
Resumen de: US2024282957A1
Provided are methods of preparing an electrochemically active cathode material including the steps of combining an alkali metal-containing nickel oxide having a formula A1−aNi1+aO2, wherein A comprises an alkali metal and 0
Resumen de: WO2024169010A1
The present application discloses a method for recovering an electrolyte of a waste lithium battery for resource utilization. The method comprises: freezing and cutting a waste lithium battery and performing leaching using an organic solvent to realize solid-liquid separation; distilling an obtained first filtrate to obtain a mother liquor and the organic fraction, adding a complexing solvent into the mother liquor to undergo a reaction and performing filtering to obtain a second filtrate and a second residue; heating the second residue to obtain a lithium hexafluorophosphate solid; and adding an amine compound into the second filtrate, performing filtering to obtain a third residue, and heating the third residue to obtain a lithium bis(fluorosulfonyl)imide solid. The present application implements the extraction and recovery of lithium hexafluorophosphate, carbonate solvents, and lithium bis(fluorosulfonyl)imide in electrolytes.
Resumen de: WO2024169731A1
The present disclosure relates to the technical field of batteries, in particular to a positive electrode plate and a battery comprising the positive electrode plate. The positive electrode plate comprises a positive electrode current collector, a second coating located on one side or two sides of the positive electrode current collector, and a first coating located between the positive electrode current collector and the second coating, wherein the first coating comprises a lithium-sodium-cobalt oxide, and the second coating comprises a lithium-rich manganese-based material. The positive electrode plate of the present disclosure has low surface resistance and high rate performance; the battery comprising the positive electrode plate of the present disclosure has low DC internal resistance, low expansion rate and good rate performance.
Resumen de: WO2024169003A1
A lithium battery recovery device. The lithium battery recovery device comprises a frame, a loading device (1), a double roll crusher (2), a lithium battery pulverizer (3), a dust separator (4), a first cyclone dust collector (6), a gravitational sorting machine (5), and a second cyclone dust collector (8). The loading device is used to convey a lithium battery to the double roll crusher; the double roll crusher is used to crush the lithium battery into a coarsely crushed material; the lithium battery pulverizer is used to crush the coarsely crushed material into a finely crushed material; the dust separator is used to remove most light dust in the finely crushed material to obtain a crushed heavy material; the first cyclone dust collector is used to collect light dust; the gravitational sorting machine is used to sort a metal shell, a copper-aluminum mixture, and a separator-dust mixture in the crushed heavy material; and the second cyclone dust collector is used to collect the separator-dust mixture. The device employs a multi-stage physical sorting technique to perform crushing and sorting on a non-injected waste lithium battery so as to obtain a metal shell material, a copper-aluminum mixture, a separator, and dust, thereby shortening the recovery process.
Resumen de: WO2024171550A1
This heat management system comprises a heat pump circuit (2) which includes: a first circulation path (11) through which a refrigerant circulates; a compressor (12) which is provided in the first circulation path and compresses the refrigerant; an expansion valve (13) which is provided in the first circulation path and expands the refrigerant; a first condenser (15) which is provided between the compressor and the expansion valve in the first circulation path and dissipates heat to indoor air; and a first evaporator (16) which is disposed in the first circulation path between the compressor and the expansion valve and at a position on the side opposite to the position where the first condenser is disposed, and which absorbs heat from atmospheric air. The first circulation path (11) is provided with a first bypass path (21) which bypasses the first evaporator (16), and the first bypass path (21) is provided with a first heater (22) which heats the refrigerant flowing through the first bypass path.
Resumen de: WO2024171141A1
The present disclosure relates to an intumescent coating and a coated article, wherein the intumescent coating comprises an inorganic binder and at least one inorganic filler. In certain preferred embodiments, the inorganic binder is selected from potassium silicate, sodium silicate, or a combination thereof, and the at least one inorganic filler is selected from clay (e.g., kaolin clay), ceramic fibers, vermiculite, hollow ceramic microspheres, perlite, zeolite, mica, hexagonal boron nitride, silicon nitride and combinations thereof. The coated article comprises a substrate having a first major surface and a second major surface, and an intumescent coating disposed on the first major surface.
Resumen de: WO2024170994A1
Provided is a secondary battery with a large charging/discharging capacity and high safety and reliability. Also, provided are: a positive electrode active material in which reduction in discharging capacity during a charging/discharging cycle is suppressed; and a secondary battery using the positive electrode active material. This positive electrode active material can be used for a lithium ion secondary battery. The positive electrode active material has lithium cobaltate having an additive element, and is used for producing a battery that has a counter electrode lithium and a positive electrode containing the positive electrode active material. When a charging/discharging cycle test is conducted, the maximum discharging capacity is exhibited at a time between the sixth cycle and the 40th cycle. The charging/discharging cycle test involves: charging in which constant current charging is performed at 0.5 C until 4.7 V is achieved, and then constant voltage charging is performed for the shorter one of 3 hours or the time until the current value reaches 0.05 C; and discharging in which constant current discharging is performed at 0.5 C for the shorter one of 3 hours or the time until the cell voltage reaches 2.5 V, where 1 C is 200 mA/g, and the temperature of a measurement environment is 25°C.
Resumen de: WO2024171560A1
A battery module (1) comprises: a battery cell (100); a fuse (233) electrically connected to the battery cell (100) and extending in a prescribed direction; and a coating heat-resistant body (311) and a surrounding heat-resistant body (211) at least partially surrounding the fuse (233) around the prescribed direction.
Resumen de: US2024280643A1
The present invention discloses a method for characterizing the State of Charge (SOC) of lithium-ion batteries using an ultrasonic reflection coefficient, which employs a water immersion ultrasonic detection method for measuring the reflection coefficient angular spectrum of lithium-ion batteries. This invention pertains to the field of non-destructive testing technology. A pouch-type lithium-ion battery can be regarded as a laminated structure composed of multiple materials, and when the State of Charge (SOC) of the lithium-ion battery varies, its reflection coefficient changes accordingly. The invention acquires the reflection coefficient angular spectrum of lithium-ion batteries at different SOCs through ultrasonic water immersion detection, establishes a mapping relationship between the angular spectrum and the SOC of the lithium-ion battery, and uses the distance between the two peak values of the angular spectrum to characterize the SOC of the lithium-ion battery. The invention enables non-destructive characterization of the SOC of lithium-ion batteries and allows for localized SOC measurement of the batteries.
Resumen de: US2024279074A1
A negative electrode active material, a negative electrode slurry including the same, a negative electrode including the slurry, a secondary battery including the negative electrode, and a method of manufacturing a negative electrode active material are disclosed. The negative electrode active material includes silicon-containing particles comprising silicon and a Li compound; and a carbon layer on at least a portion of a surface of the silicon-containing particles. Upon X-ray diffraction analysis, a ratio (p2/p1) of a peak intensity (p2) appearing at 18.8° to 19.0° to a peak intensity (p1) appearing at 24.7° to 24.9° is 0.7 or greater. A pH is 7 to 10 when 1 g of the negative electrode active material is dispersed in 100 mL of water at 25° C.
Resumen de: US2024280320A1
A battery manufacturing method includes providing a battery part in a drying unit; providing a drying agent in a mixing unit; controlling, by the mixing unit, humidity and/or temperature of the drying agent; and feeding the drying agent from the mixing unit to the drying unit.
Resumen de: US2024280360A1
A system includes a top scanner head configured over a coated substrate. An x-ray sensor and a second x-ray sensor scan the coated substrate. At least one of the x-ray sensor and second x-ray sensor is tuned to an energy level below an absorption peak and at least one of the x-ray sensor and second x-ray sensor is tuned to an energy level above the absorption peak. The x-ray sensor and second x-ray sensor scan a same sheet spot on the coated substrate. A bottom scanner head is configured underneath the coated substrate to provide a location for a detection of x-rays for the x-ray sensor and the second x-ray sensor.
Resumen de: US2024279077A1
Disclosed herein is a particulate material of the composition LiaMgb)i+x(NicM1dM2e)1−xO2 where M1 is selected from Ti, Zr, Nb, Mo, and W, and combinations of at least two thereof; M2 is selected from Al, Co, Mn, and combinations of at least two thereof; a:b is in the range of from 100:1 to 400:1, and a+b=1; c:d is in the range of from 40:1 to 250:1, and c:e is in the range of from 12:1 to 50:1; and c+d+e=1; the total molar ratio of (Li+Mg) to (Ni+M1+M2) is in the range of from 1:1 to 1.05:1; and 0.00≤x≤0.05, where the particulate material has an average particle diameter (D50) in the range of from 2 to 20 μm.
Resumen de: US2024282939A1
A negative active material includes silicon-oxygen particles and a silicon-oxygen-carbon layer located on surfaces of the silicon-oxygen particles, where the silicon-oxygen-carbon layer includes silicon-oxygen-carbon composite particles. Applied to an electrochemical device, the negative active material improves the cycle performance significantly.
Resumen de: US2024282968A1
The disclosure aims to provide a polytetrafluoroethylene powder for an electrode binder which can not only reduce or prevent gas generation inside a battery cell and deterioration of battery characteristics but also improve the electrode strength, an electrode binder, an electrode mixture, an electrode, and a secondary battery. Provided is a polytetrafluoroethylene powder for use as an electrode binder, the polytetrafluoroethylene having a standard specific gravity of 2.200 or less and being substantially free from water.
Resumen de: US2024283096A1
An improved battery pack 100/200 is disclosed, having a plurality of cylindrical cells 102 arranged in parallel disposition in rows 104/204 and columns 106/206 such that positive and negative terminals of any of the cells and the closest surrounding cells are oppositely placed to minimise the overall magnetic field due to the internal current of the cells by the opposite magnetic field of the oppositely placed adjacent cells. The positive and negative terminals at any of or both of upper and lower ends of the cells 102 in a group of adjacently located columns are connected by criss-cross connections 108/208 to provide parallel electric connection of the cells 102 in groups of adjacently located columns 106/206. Criss-cross connections 108/208 pertaining to the terminals of opposite polarity are connected by series connections 110/210 to provide series connection of the sets of cells connected in parallel by the criss-cross connections 108/208.
Resumen de: US2024282948A1
This application provides a secondary battery, a battery module, a battery pack, and an electric apparatus. The secondary battery includes a positive electrode plate and a non-aqueous electrolyte. The positive electrode plate includes a positive electrode active material having a core-shell structure, the positive electrode active material including a core and a shell enveloping the core. A chemical formula of the core is Li1+xMn1−yAyP1-zRzO4. A is one or more elements selected from Zn, Al, Na, K, Mg, Mo, W, Ti, V, Zr, Fe, Ni, Co, Ga, Sn, Sb, Nb and Ge. R is one or more elements selected from B, Si, N, and S. The first coating layer includes a crystalline pyrophosphate LiaMP2O7 and/or Mb(P2O7)c. The second coating layer includes a crystalline phosphate XPO4. The third coating layer is carbon. The non-aqueous electrolyte includes a first solvent, the first solvent including one or more of the compounds represented by formula 1.
Resumen de: WO2024169002A1
The present application relates to the technical field of lithium battery materials, and discloses an anhydrous iron phosphate and a preparation method therefor, and a lithium iron phosphate positive electrode material. The preparation method for the anhydrous iron phosphate comprises the following steps: reacting a mixed solution of a ferrophosphorus solution and an alkali solution at 80-90°C for 20-60 min to obtain a reaction solution; cooling the reaction solution to be lower than 50°C within 20 min; and then carrying out calcination on the solid obtained by the reaction. The method is simple and easy to operate; an anhydrous iron phosphate having a small angle of repose and a uniform size can be prepared; the anhydrous iron phosphate has good fluidity, processability, and compaction density; the processability and the electrochemical performance of the lithium iron phosphate positive electrode material which is prepared subsequently can be improved.
Resumen de: WO2024168709A1
Provided in some of the embodiments of the present application are a battery cell, a battery and an electric device. The battery cell comprises a first wall, an electrode terminal and a separator, wherein the electrode terminal is mounted on the first wall, at least part of the separator is arranged between the first wall and the electrode terminal, and at least part of the structure in the separator has a yield strength of Q1, where Q1 satisfies: Q1 ≥ 30 MPa. In some of the embodiments of the present application, the yield strength of at least part of the structure in the separator is set to be no less than 30 MPa, such that during the machining of the electrode terminal, the risk of the separator being completely collapsed is reduced, thereby improving the yield of the separator after preparation of the battery cell is completed; and the risk of the electrode terminal coming into direct contact with the first wall is reduced, thereby improving the safety of the battery cell.
Resumen de: WO2024168708A1
Provided in the present application are a lithium secondary battery and an electrical apparatus. The lithium secondary battery comprises: a negative electrode sheet, the negative electrode sheet comprising a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative current collector, and the porosity of the negative electrode active material layer being P; and an electrolyte, the electrolyte comprising a solvent, the solvent comprising at least one of the following compounds of formula (I), the mass fraction of the compounds of formula (I) in the electrolyte being W1, and W1 and P satisfying: 0.65≤W1/P≤4.4, and optionally, 1.1≤W1/P≤3.5, wherein R1 and R2 each independently comprises at least one of an alkyl group having 1-3 carbon atoms and a halogenated alkyl group having 1-3 carbon atoms. The lithium secondary battery can improve the transmission rate of lithium ions on the negative electrode active material layer when the porosity of the negative electrode sheet is relatively low, and can improve the cycle performance and the safety performance of the lithium secondary battery while improving the energy density of the lithium secondary battery.
Resumen de: WO2024169929A1
A power battery charging method, comprising: acquiring the power of a vehicle-mounted charger, the power of a vehicle-mounted accessory, heating power that can be provided by the vehicle-mounted charger for a power battery, and the current temperature and the target temperature of the power battery during vehicle charging; on the basis of the heating power, determining a heating duration required for heating the power battery from the current temperature to the target temperature; determining a first state of charge of the power battery on the basis of the difference between the state of charge of the power battery in a full state and the increase in the state of charge of the power battery in the heating duration; and in response to the state of charge of the power battery reaching the first state of charge, heating the power battery on the basis of the heating power, and charging the power battery on the basis of the remaining available power. Also disclosed are a power battery charging apparatus using the method, a vehicle, and a computer-readable storage medium and a computer program product for the method. According to the method, it can be guaranteed that a power battery can be fully charged in a low-temperature environment, the low-temperature endurance of an electric vehicle is improved, and the heating energy consumption of the battery is also reduced.
Resumen de: WO2024170008A1
The present invention belongs to the technical field of electromechanics, and provides an electric tool, which solves the problems of existing non-contact gear shifting water drills being unstable in terms of skipping gears during use. The present invention comprises a shell, a power output assembly and a gear shifting assembly, wherein the power output assembly comprises a high-speed driving gear, a low-speed driving gear, a high-speed driven gear and a low-speed driven gear, the high-speed driven gear and the high-speed driving gear being configured to mutually mesh, and the low-speed driven gear and the low-speed driving gear being configured to mutually mesh; and the gear shifting assembly comprises a gear shifting knob and a gear shifting clutch sleeve, the gear shifting clutch sleeve being positioned between the high-speed driven gear and the low-speed driven gear. The advantages of the present invention lie in: by means of rotating the gear shifting knob, the gear shifting clutch sleeve is pushed to translate, so that the gear shifting clutch sleeve switches to be in meshing connection with the high-speed driven gear or the low-speed driven gear, thereby realizing the shifting between high and low gears. The present invention is convenient in terms of gear shifting operations, and has a high gear shifting success rate.
Nº publicación: WO2024173935A1 22/08/2024
Solicitante:
THE TRUSTEES OF INDIANA UNIV [US]
THE TRUSTEES OF INDIANA UNIVERSITY
Resumen de: WO2024173935A1
Methods of recycling and recovering lithium-ion batteries (LIB) and electrode materials thereof, including recovering reusable electrode materials from spent LIBs and electrode scraps produced as a byproduct of LIB production. An electrode sheet is separated from a lithium-ion battery or obtained as a component of a lithium-ion battery. The electrode sheet includes an electrode active material, a polyvinylidene fluoride binder, a carbon-based material, and a current collector. At least a portion of the electrode sheet is immersed in propylene carbonate to delaminate the electrode active material from the current collector and form a solid/liquid mixture. The propylene carbonate is separated from the solid/liquid mixture and the electrode active material is separated from the polyvinylidene fluoride binder, the carbon-based material, and the current collector.
BOPI
Sede Electrónica
