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55results about How to "Improve high current performance" patented technology

Active carbon for preparing carbon electrode of super capacitor and preparation method thereof

The invention discloses an active carbon for preparing a carbon electrode of a super capacitor and a preparation method thereof. The average particle size of active carbon particles is between 15 and 30 mu m, the specific surface area of the active carbon particles is between 3,000 and 3,400 m<2> / g and pore channels with pore diameters of between 2 and 5 nanometers account for 25 to 32 percent of all pore channels in the particles. The preparation method comprises the following steps of: mixing an amphipathic carbon material serving as a precursor and potassium hydroxide (KOH) and deionized water and stirring the mixture to obtain solution; drying the solution to obtain a solid mixture; and activating, washing, and drying the washed solid mixture to obtain the active carbon. The active carbon and the preparation method have the advantages that: the process for preparing the active carbon is simple; the amphipathic carbon material is soluble in water and is easy to be uniformly mixed with KOH, so not only the using amount of KOH is reduced but also the uniformity and high efficiency of an activating process are improved; and the prepared active carbon has a large specific surface area, high occupation ratio of the pore channels with particle sizes of between 2 and 5 nanometers in the particles, high specific capacity for manufacturing the electrode of the super capacitor and excellent heavy current performance.
Owner:成都佰思格科技有限公司

Nonaqueous electrolyte battery, battery pack and vehicle

A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a titanium-containing oxide. The nonaqueous electrolyte contains a compound having a functional group represented by the formula (1) below and a sultone having an unsaturated hydrocarbon group. [Chem.]
Owner:KK TOSHIBA

Negative plate of battery, preparation method thereof and battery comprising negative plate

The invention discloses a negative plate of a battery, a preparation method thereof and the battery comprising the negative plate. The negative plate is composed of a plate grid and a negative pole material coated on the plate grid, and the negative pole material comprises a battery active material, a capacitor material as well as a conductive steric hindrance agent; the battery active material comprises 100 parts by weight of lead powder, 0.6-2.0 parts by weight of barium sulfate and 0.1-0.5 part by weight of short fiber, and the capacitor material comprises 0.1-10 parts by weight of active carbon; and the additive amount of the electric conduction steric hindrance agent is 0.1-5.0 in parts by weight, and the conductive steric hindrance agent comprises Magneli mutual sulfoxide titanium oxide and / or plumbous acid barium. The raw material of the negative plate of the battery provided by the invention can be used for postponing a negative board sulphate phenomenon through combining the three parts, the cold-starting property is markedly improved, and the heavy-current charge-discharge property is optimized.
Owner:湖南维邦新能源有限公司

Modified graphite and its preparing method

Modified graphite includes granules of graphite core material and amorphous carbon membrane layer. Distance of between micro crystal layers d002 as 0.335-0.340 nm. Specific surface area of modified graphite is 1.3-4.2m2 / g and average particle diameter is 8-35 micro. The preparing method includes following steps: dipping granules of graphite core material in solution of polymer coating materials; then through mixing, separating, sieving, solidifying and carbonizing steps. Advantages are: large current, higher reversible specific capacity, longer cycle life. Features are simple, low cost and easy for industrialization production.
Owner:BYD CO LTD

Preparation method of sodium titanate/graphene composite cathode material of sodium ion battery

The invention provides a preparation method of a sodium titanate / graphene composite cathode material of a sodium ion battery, which is used for solving the problems in the prior art that no sodium ion battery cathode material with excellent comprehensive performance is provided, and belongs to the field of sodium ion secondary batteries. The method comprises the steps of dispersing graphene oxide to obtain a graphene oxide solution, mixing the graphene oxide solution, a sodium-containing compound and a titanium-containing compound, carrying out reaction to obtain a composite precursor, mixing the composite precursor with a binder, carrying out atomizing drying and granulating to obtain a spherical composite precursor, and finally burning the spherical composite precursor in an inert atmosphere to obtain a micro-scale spherical sodium titanate / graphene composite cathode material. The composite cathode material has the advantages of high sodium storage capacity, long cycle life, good large-current discharge property, high compaction density and the like, and the requirement of the high-performance sodium ion battery for the comprehensive performance of the cathode material can be met.
Owner:LIAONING TECHNICAL UNIVERSITY

Lead acid battery and preparation method thereof

The invention provides a lead acid battery and a preparation method thereof, belongs to the field of lead acid battery preparation, and can overcome the defects that the existing lead acid battery is large and is poor in current performance, and cycle life is short. Graphite is added to lead paste of an anode and a cathode of the lead acid battery, activated carbon is added to the lead paste of the anode of the lead acid battery, and the lead acid battery made of the lead paste of the anode and the cathode overcomes the defects that the existing lead acid battery is large and is poor in current performance and cycle life is short.
Owner:CHERY AUTOMOBILE CO LTD

Diachylon of negative electrode of lead carbon battery and manufacturing method thereof

The invention provides diachylon of a negative electrode of a lead carbon battery and a manufacturing method thereof, and relates to the field of manufacturing lead-acid storage batteries. Important improvement is as follows: a mixed carbon material and SiO2 are added into the diachylon, wherein the mixed carbon material consists of graphite, carbon black, active carbon and vapor grown carbon fiber which are mixed. As the mixed carbon material and SiO2 in scientific proportion are added, the contact resistance of active matters is reduced, and the conductivity is improved, and the polar plate connection is better. The diachylon is not loosened, so that the comprehensive performance of the battery is improved, and the diachylon is suitable for demand of novel energy industry and electromobile industry. The manufacturing method of the diachylon provided by the invention is simple and convenient to operate and normal, and the diachylon is excellent and stable in performance. The method is suitable for industrialized production.
Owner:SHUANGDENG GRP

Low-temperature welding material

A low-temp solder for soldering electric capacitors contains Sn (60-64 wt.%), Zn (35.891-39.891 wt.%) and the Cu, Pb, Fe, Sb, As, Al, Bi, Ni and Cd (rest). Its advantages are low smelting temp, no damage to polypropene film, and high adhesion to Al foil.
Owner:上海上电电容器有限公司

Lithium ion secondary cell and method for preparing anode thereof

Disclosed lithium ion secondary battery including anode, cathode, electrolyte and diaphragm provides features of high discharge capacity, high discharge energy, long cycle life and excellent current performance. The active material of positive pole includes composite metal oxide of lithium-nickel-cobalt and oxide of lithium-cobalt LiCoO2 mixed each other in certain ratio. The method for preparing positive pole includes steps: baking spherical nickel hydroxide containing high cobalt and compound containing lithium obtains component A; mixing component A and LiCoO2 and adding adhesive, current conducting agent, and solvent; though procedures of string, coating, drying and sheet formatting so as to obtain positive pole. Features are simple and easy of industrialization.
Owner:BYD CO LTD

A hybrid super capacitor and a method for preparing the same

The invention discloses a hybrid super capacitor and a method for preparing the same. The hybrid super capacitor comprises a negative electrode made of hydrogen storage alloy material; a positive electrode which is made of carbon material special for electric double layer capacitor or substance with quasi capacitor characteristic or composite material compouned by the substance and the carbon material; and electrolyte adopting 6 mol.L-8 mol.L of potassium hydroxide or sodium hydroxide water solution. Compared with the electric double layer capacitor with alkaline water system electrolyte, the capacity density and energy density of the hybrid super capacitor prepared by the invention can be increased by times, and the invention has better high power capability and cyclical stability; in addition, the hybrid super capacitor is used as power of electric motor car, electric tool, and information device, and used as materiel facility pulse power source and photovoltaic power plant storage battery.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Method for improving performance of electrode material LNMO

The invention belongs to the field of an electrode material for a chemical power supply, and particularly relates to a method for improving the performance of a high-voltage electrode material LiNi0.5Mn1.5O4. The method comprises the steps: uniformly mixing a lithium compound, a boron compound and a phosphorus compound to obtain a mixture, uniformly mixing the mixture with LiNi0.5Mn1.5O4 electrode material or chromium-doped LiNi0.5Mn1.5O4 electrode material, sintering the mixture at a high temperature to obtain a LiNi0.5Mn1.5O4 electrode material with surface being coated with Li0.1B0.967PO4. The surface of LNMO is coated with a layer of LBPO, so that not only can the large-current performance be improved, but also the cycling performance can be improved.
Owner:山东鲁顺宏泰新能源科技有限公司

Low-temperature lead-free solder

ActiveCN108971793AEliminate pollution problemsHas thermal fatigue resistanceWelding/cutting media/materialsSoldering mediaEnvironmental resistanceOvervoltage
The invention discloses low-temperature lead-free solder and used for welding electrical contact materials. The low-temperature lead-free solder comprises, by mass percent, 30%-65% of Bi, 15%-50% of Sn and 15%-45% of In. To improve the mechanical performance of the alloy solder and improve the oxidation resistance, the wettability and the like, one or more of microelements including Ag, Zn, Al, Cu, Ga, P and the like is appropriately added. The melting point of the low-temperature solder is controlled within the range of 75 DEG C-100 DEG C, is used for removing damage of welding temperature toa welded object in the welding process and has the advantages that the melting temperature is low, during welding, the binding rate with copper foil is high, the loss tangent value of a capacitor issmall, the partial discharging performance and the overvoltage and large current resistance of the capacitor are improved, the cost is relatively low, no lead exists and the low-temperature lead-freesolder is more environmentally friendly. The low-temperature lead-free solder is especially suitable for welding heat sensitive elements, semiconductor elements with semiconductor manner refrigeratingelements and the like.
Owner:YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD

Activated carbon material and preparation method thereof and supercapacitor

The invention discloses an activated carbon material and a preparation method thereof and a supercapacitor, which belong to the technical field of electrode materials. The activated carbon material is prepared by taking blocky graphite as a raw material through heating the blocky graphite to 500-700 DEG C at a heating rate of 10-20 DEG C / min; carbonizing the blocky graphite, and heating the blocky graphite to 700-900 DEG C at a heating rate of 0-20 DEG C / min; and feeding activation gas for activating the obtained object, so that an activated carbon material with large specific surface area, large total pore volume and high porosity is obtained. Because the blocky graphite is taken as a raw material, the activated carbon material is wide in source and low in price, thereby saving cost. The preparation method disclosed by the invention is mild in activation conditions, small in energy consumption, environmentally friendly, easy to operate, wide in raw material sources, low in cost, and suitable for large-scale industrial production. The supercapacitor disclosed by the invention takes the activated carbon material prepared according to the invention as an electrode material, so that the specific capacitance and charge-discharge cycle performance of the supercapacitor are improved, and the requirements of the supercapacitor on high specific capacitance and excellent large current properties are met.
Owner:LUOYANG YUEXING NEW ENERGY TECH

Nitrogen-doped nanocarbon coated/oxidized modified graphite composite material and preparation method thereof

The invention discloses a nitrogen-doped nanocarbon coated / oxidized modified graphite composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: fully mixing graphite with oxidizing agents; putting into a hydrothermal reaction kettle between 95 and 220 DEG C to react for 0.5-24 hours to obtain graphite oxide; drying the material and carbonizing at a high temperature; introducing organic amine along with inert gas; and forming a nitrogen-doped carbon CNx coating layer on the surface of the graphite material to obtain a modified graphite composite material. The modified graphite composite material is high in conductivity, the first charging / discharging efficiency is 89.8 percent, the reversible capacity can reach 383.2 mAh / g, the large current performance is obviously increased, and the capacity retention ratio of IC current circulation for 20 times can reach 84.6 percent. The preparation method is simple, the process is easy to control, the condition is mild, and the cost is low.
Owner:SHANGHAI SECOND POLYTECHNIC UNIVERSITY

Promoter for solid electrolyte film of lithium cell

The invention relates to a accelerating agent of solid conposite membrane for lithium cell, which is one millimicron metal chosen from Ag, Cu, Au, Zn, Fe, Co, Ni, Ru, Rh, Pd, Pt, Ir, Os or Al, or from millimicron alloy whose expression is MX11MX22...MXnn (M1,M2,...Mn stands for different elements which are chosen from main group element like Li, or transition metal like Ag) and at least containing one kind of Ag, Cu, Au, Zn, Fe, Co, Ni, Ru, Rh, Pd, Pt, Ir, Os or Al. The average size of particles is 0.3~250nm. The accelerating agent deposits on the surface of electrode, which forms solid electrolyte membrane with certain flexibility on the surface of electrode, which forms solid electrolyte membrane with certain flexibility on the surface of electrode, greatly increasing service life of electrode material, making the battery own excellent electrochemical periodicity and property of large electric current, and reducing the manufacturing cost for electrode, satisfying the requirements of portable electronic apparatus and discharge and charge of large-powdered battery in electric automobile in the future.
Owner:LIYANG TIANMU PILOT BATTERY MATERIAL TECH CO LTD

Secondary battery, battery pack, and vehicle

The invention relates to a secondary battery, a battery pack and a vehicle. A secondary battery with excellent large current performance, circulation performance and storage performance is provided. According to one approach, the secondary battery includes a positive electrode, a negative electrode, a separator, a first electrolyte and a second electrolyte. The separator is arranged at least between the positive electrode and the negative electrode. The first electrolyte is contained at least in the positive electrode. The first electrolyte includes a lithium salt and an aqueous solvent. The second electrolyte is contained at least in the negative electrode. The second electrolyte includes a bis(fluorosulfonyl)imide salt and an aqueous solvent.
Owner:KK TOSHIBA

Super capacitor charcoal electrode material, super capacitor charcoal electrode, preparation method of material, and preparation method of electrode

The invention discloses a method for preparing a super capacitor charcoal electrode material by using coal liquefaction aromatic hydrocarbons, and the charcoal electrode material prepared through the method. The method comprises the following steps: sequentially stabilizing, charring and activating the coal liquefaction aromatic hydrocarbons, washing a product obtained after the activation, and drying, wherein eh ash content of the coal liquefaction aromatic hydrocarbons does not exceed 3000ppm. The invention also discloses a method for making a charcoal electrode by using the charcoal electrode material, and the charcoal electrode. The specific capacity of the charcoal electrode is effectively improved in the invention.
Owner:CHNA ENERGY INVESTMENT CORP LTD +1

Active carbon for preparing carbon electrode of super capacitor and preparation method thereof

The invention discloses an active carbon for preparing a carbon electrode of a super capacitor and a preparation method thereof. The average particle size of active carbon particles is between 15 and 30 mu m, the specific surface area of the active carbon particles is between 3,000 and 3,400 m<2> / g and pore channels with pore diameters of between 2 and 5 nanometers account for 25 to 32 percent ofall pore channels in the particles. The preparation method comprises the following steps of: mixing an amphipathic carbon material serving as a precursor and potassium hydroxide (KOH) and deionized water and stirring the mixture to obtain solution; drying the solution to obtain a solid mixture; and activating, washing, and drying the washed solid mixture to obtain the active carbon. The active carbon and the preparation method have the advantages that: the process for preparing the active carbon is simple; the amphipathic carbon material is soluble in water and is easy to be uniformly mixed with KOH, so not only the using amount of KOH is reduced but also the uniformity and high efficiency of an activating process are improved; and the prepared active carbon has a large specific surface area, high occupation ratio of the pore channels with particle sizes of between 2 and 5 nanometers in the particles, high specific capacity for manufacturing the electrode of the super capacitor and excellent heavy current performance.
Owner:成都佰思格科技有限公司

Nickelous compound anode material used in nickel-hydrogen battery and preparation technique

The invention relates to a nickelous compound anode material used in nickel-hydrogen battery, belonging to the technical field of electrode material preparation technique in chemical engineering. Capacitor material NiO is doped into cobalt-covered nickel hydroxide in certain proportion to be active material of the anode of the nickel hydroxide battery, wherein the mass percentage of nickel oxide and cobalt-covered nickel hydroxide are respectively 1-19% and 99-90%, NiO is prepared by heat treatment on nanometer alpha-Ni(OH)2, and metal cation is doped in alpha-Ni(OH)2 synthesis process, and the doped metal cation is one or more than one of Al, Cu, Y, Mn, Zn, Co, Cr and Fe. The invention is simple in technique, the condition is easy to control, electrochemical performance of the obtained material is steady, and charging and discharging test shows that the large multiplying power discharge specific capacity is high, and operation voltage is stable, thus being applicable to be anode active material of MH / Ni battery.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Switching device with lever ratio

The invention discloses a switching device with lever ratio, comprising a shell, a rocker arm, a rotating shaft, a contact support, a moving contact bridge and a fixed contact, wherein the rocker arm is rotatably arranged on the rotating shaft; one end of the rocker arm is a driving end and the other end of the rocker arm is a driven end; the contact support is in contact connection with the driven end of the rocker arm driving the contact support to move; the side of the contact support, which is close to the fixed contact, is provided with the moving contact bridge; and the lever ratio of the distance b between the driven end of the rocker arm and the center of the rotating shaft and the distance a between the driving end of the rocker arm and the center of the rotating shaft is more than 1. The switching device has the beneficial effects of strong breaking capability, long service life, simple structure, low cost and convenience in installation.
Owner:SHANGHAI NOARK ELECTRIC

Lead-acid storage battery plate grid of staircase structure, electrode plate and manufacturing technology of electrode plate

The invention discloses a lead-acid storage battery plate grid of a staircase structure. The plate grid comprises a plate grid body, the plate grid body is composed of an upper frame, a lower frame and a side frame, and transverse ribs and vertical ribs are arranged in the plate grid body. The plate grid is characterized in that trapezoidal gaps are formed in the side frame, the length of the trapezoidal gaps is smaller than the spacing distance between every two adjacent transverse ribs of the plate grid, and the depth of the trapezoidal gaps is smaller than one half of the thickness of the plate grid; each trapezoidal gap is distributed between every two adjacent transverse ribs of the plate grid body, and the trapezoidal gaps are evenly distributed in an array mode. By improving the plate grid frame and designing the plate grid frame to be of the staircase structure, the lead-acid storage battery plate grid has the advantages that the original thickness of the plate grid keeps invariable, therefore, the void volume of plate grid filling lead paste is guaranteed, and the paste stacking phenomenon is avoided; the specific surface area of the lead paste is increased, and the high-current performance of a lead-acid storage battery is improved; the using amount of rare earth-silver alloy is decreased, and therefore the material cost is reduced.
Owner:TIANNENG BATTERY GRP ANHUI

Super capacitor-used composite material and preparation method thereof

The invention relates to a super capacitor-used composite material and a preparation method thereof. With coal as a raw material, a coal sample is crushed and screened to powder with a certain particle size, temperature of the powder rises to 600 to 800 DEG C at a temperature rise rate of 25 to 35 DEG C / min, carbonization is then carried out to obtain a carbonized material, temperature of the carbonized material rises to 800 to 1100 DEG C at a temperature rise rate of 25 to 35 DEG C / min, an activated gas is fed, 3 to 5 h of activation is carried out, and cooling to room temperature is carried out; after the material is washed by water for 3 to 6 times, acid cleaning is firstly carried out, and distilled water is then used for washing until PH is near to 7; and in a certain condition, drying to a constant weight is carried out, and an activated carbon composite material is obtained. The activated carbon material prepared in the invention is an electrode material, the activated carbon material has a large specific surface area, large total pore volume and high mesopore ratio, the specific capacitance and the charge and discharge cycle performance of the super capacitor are improved, and requirements on the high specific capacitance and the excellent large current performance by the super capacitor are met.
Owner:LIAONING LIDE ELECTRICAL POWER ENG DESIGN CO LTD

Vertical-structure GaN-based enhancement mode field effect transistor and manufacturing method therefor

The invention discloses a vertical-structure GaN-based enhancement mode field effect transistor and a manufacturing method therefor. The device comprises a substrate layer (1), a buffer layer (2), a non-intentionally-doped GaN (i-GaN) epitaxial layer (3), an n type AlGaN epitaxial layer (4), an n type AlN conductive layer (5), an n type AlN oxide isolation layer (6), an i-GaN regrowth layer (7), an AlGaN regrowth layer (8), a gate electrode oxide layer (9), a source electrode (10) arranged on the (8), a drain electrode (11) arranged on the (4), and a gate electrode (12) arranged on the (9). When the device is in use, the drain electrode current, by passing through the non-oxidized n type AlN conductive layer, flows to the source electrode to form the vertically and conductively structured enhancement mode device. The enhancement mode field effect transistor has the advantages of high breakdown voltage, high output current density, low leakage current and the like, and is suitable for the application in the field of the high-power electric power and electronics.
Owner:HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY

A low-temperature lead-free solder

ActiveCN108971793BIncrease contactThe solid-liquid phase transition has little change in volumeWelding/cutting media/materialsSoldering mediaOvervoltageAlloy
The invention discloses a low-temperature lead-free solder, which is used for welding electrical contact materials, and contains: 30%-65% of Bi, 15%-50% of Sn, and 15%-45% of In in mass percentage. In order to improve the mechanical properties of alloy solder, improve oxidation resistance and wettability, etc., one or more of some trace elements Ag, Zn, Al, Cu, Ga, P, etc. are appropriately added. The control range of the melting point of the low-temperature solder of the present invention is within 75°C to 100°C, which is used to eliminate the damage to the welded object caused by the welding temperature during the welding process, and has the advantages of low melting temperature, high bonding rate with copper foil during welding, and loss tangent value of the capacitor Small size, improved partial discharge performance of capacitors, ability to withstand overvoltage and high current, lower cost, lead-free and more environmentally friendly, especially suitable for welding heat-sensitive components and semiconductor refrigeration components.
Owner:YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD

Cylindrical lithium ion battery and combination method thereof

PendingCN110459800AStable welding quality and effectGuaranteed high powerFinal product manufactureSecondary cellsCombined methodLithium electrode
The invention discloses a cylindrical lithium ion battery, which comprises a cap, a housing, an electric core and an electrolyte, wherein the electric core is accommodated in the housing, the electrolyte is adsorbed in the electric core, the electric core is provided with a supporting rod at the center, the section of the supporting rod is of a regular polygonal hollow structure, the electric coreis wound into a cylindrical shape around the supporting rod by a positive plate, a negative plate and a diaphragm arranged between the positive plate and the negative plate at intervals, the top endand the bottom end of the electric core are respectively provided with a positive tab and a negative tab which are welded on the middle parts of the positive plate and the negative plate, and insulating sheets are respectively arranged between the positive plate and the positive tab and between the negative plate and the negative tab. The invention further discloses a combination method of the cylindrical lithium ion battery, which adopts a connection mode of first series connection and then parallel connection to combine cylindrical lithium ion batteries into a lithium ion battery module. According to the invention, the high power and high current performance of the lithium ion battery can be effectively guaranteed, and the defect that the series-parallel combination mode of the lithium ion batteries in the prior art has high requirements on the consistency of the lithium ion batteries is overcome.
Owner:SHANDONG SACRED SUN POWER SOURCES

Alkaline battery

The invention discloses an alkaline battery which comprises a positive electrode and a negative electrode, wherein the positive electrode and / or the negative electrode comprise(s) graphene with the mass percent of 0.05-5%. By adopting graphene as a positive electrode conductive agent of the alkaline battery, not only is the internal resistance of the battery effectively reduced, but also the utilization rate of active substances is increased, the use amount of a positive electrode conductive material is also reduced, and the content of the active substances of the battery is increased, so that the discharge capacity and the comprehensive property of the battery are improved, and the battery is excellent in both large current property and medium / small current property; when graphene is adopted as a negative electrode additive, the flowability and the viscosity of the negative electrode can be improved, and meanwhile, a certain conductive function can be achieved in the medium / later discharge period of the battery, so that the utilization rate of the negative electrode active substances is increased.
Owner:ZHONGYIN NINGBO BATTERY CO LTD

High brightness electrode for super high pressure mercury lamp

Present invention discloses a high-brightness electrode whose discharge end being cone shape electrode pole tip, said pole tip made of tungsten by argon arc welding. Said High-brightness electrode is used in ultra-pressure mercury lamp with generated thin electric arc, high brightness, and long service life.
Owner:王国华

Electric vehicle power battery material

The invention aims to provide an electric vehicle power battery material. A core-shell structure carbon composite material modified by graphite is adopted as an anode material for batteries, and has high reversible capacity, low potential platform, high similarity with a solvent, high large-current performance and the like; a carbon-encapsulated lithium iron phosphate and lithium vanadium phosphate composite material is adopted as a cathode material for batteries, and has high stability, good cycle performance, good charging and discharging platform, good ionic conductivity for three-dimensional ion channels, high voltage platform and moderate cost; and the electric vehicle power battery material is excellent in performance, and is suitable for electric vehicle power batteries.
Owner:WUHU KAIER ELECTRICAL TECH
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