CN109216663A - A kind of nano particle/carbon cloth combination electrode material and preparation method thereof - Google Patents

A kind of nano particle/carbon cloth combination electrode material and preparation method thereof Download PDF

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Publication number
CN109216663A
CN109216663A CN201710531488.4A CN201710531488A CN109216663A CN 109216663 A CN109216663 A CN 109216663A CN 201710531488 A CN201710531488 A CN 201710531488A CN 109216663 A CN109216663 A CN 109216663A
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electrode material
nano particle
combination electrode
carbon cloth
transition metal
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夏晖
陈琪
翟腾
孙硕
万黎明
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/46—Metal oxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/581—Chalcogenides or intercalation compounds thereof
    • H01M4/5815—Sulfides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

Abstract

The invention discloses a kind of nano particle/carbon cloth combination electrode materials and preparation method thereof, include: by infusion process in the micron order phenolic resin based activated carbon fiber of pre- nitric acid treatment carrying transition metal salt, mesoporous carbon fiber is obtained by high-temperature process again and embeds transition metal simple substance or the combination electrode material of its oxide nano particles, the embedded transition metal oxide/sulfide/nitride/phosphide nano particle combination electrode material of mesoporous carbon fiber can also be obtained by continuing high-temperature oxydation/vulcanization/nitridation/phosphatization.Nano particle prepared by the present invention/carbon cloth combination electrode material has excellent chemical property, can apply in the energy storages such as supercapacitor, lithium/sodium-ion battery and electro-catalysis and conversion field.

Description

A kind of nano particle/carbon cloth combination electrode material and preparation method thereof
Technical field
The present invention relates to a kind of for energy storage and converts the nano particle/carbon cloth combination electrode material in field, Belong to technical field of material.
Background technique
In recent years, the demand of wearable flexible electronic device increasingly increases, and the flexible battery of flexible folding, super Capacitor is the core component of flexible electronic device, and wherein flexible electrode is prepared into indispensable one of key.Currently, It is received significant attention by the carbon-based collector of flexibility of representative of carbon cloth, with excellent foldable bending property, excellent Electric conductivity, higher the advantages that loading specific surface area and light weight, electrode prepared therefrom is relative to conventional metals collection The electrode of fluid preparation energy density with higher is without the use of conductive agent and binder, and has stronger foldable curved Qu Xingneng.Meanwhile the electrode material based on carbon cloth also starts to be applied to other energy storages such as electro-catalysis and conversion field, And it makes some progress.
However, existing carbon cloth based combined electrode is made in a manner of carbon fiber surface composite active material It is standby, the side such as growth in situ and magnetron sputtering plating of the methods of direct coating, hydro-thermal method or electro-deposition including active material Method.Electrode prepared by this kind of mode continuous active material configuration in surface during folded bent is easy to damage, and active material It is directly exposed in electrolyte, active material apparent for bulk effect is easy to fall off in the circulating cycle to lead to reduced performance.This Outside, the polyacrylonitrile-radical Carbon fiber nanoelectrode material of method of electrostatic spinning preparation, has higher cost, production efficiency low, uncomfortable Close large area preparation and not environmentally the disadvantages of.
Transition-metals and their oxides, sulfide, nitride, phosphide are in supercapacitor, lithium/sodium-ion battery, electricity The fields such as catalysis using long-standing, they generally have preferable electric conductivity, higher energy density and preferable circulation Service life and chemical property stabilization, safety non-pollution, it is cheap and easy to get the features such as, thus be concerned, before wide application Scape.It is it is compound with carbon material, reduce the designs such as its particle size and think currently, in order to improve the chemical property of this kind of material Road, which has been obtained, generally to use
Summary of the invention
The purpose of the present invention is to provide a kind of nano particle/carbon cloth combination electrode material and preparation method thereof, gram Take that the continuous active material configuration in surface during folded bent is easy to damage, active material is easy to fall off etc. in cyclic process lacks Point.
To achieve the goals above, technical scheme is as follows:
A kind of nano particle/carbon cloth combination electrode material and preparation method thereof, by infusion process in pre- nitric acid treatment Micron order phenolic resin based activated carbon fiber in carrying transition metal salt, then by high-temperature process obtain mesoporous carbon fiber embed transition The combination electrode material of metal simple-substance or its oxide nano particles continues high-temperature oxydation/vulcanization/nitridation/phosphatization and may be used also Transition metal oxide/sulfide/nitride/phosphide nano particle combination electrode material is embedded to obtain mesoporous carbon fiber Material.
Further, the diameter dimension of micron order phenolic resin based activated carbon fiber is 2-20 μm.
Further, the pre- nitric acid treatment method of phenolic resin based activated carbon fiber are as follows: carbon cloth is immersed in concentrated nitric acid, Soaking temperature is 40-120 DEG C, soaking time 4-24h.
Further, the dip time of infusion process is 6-48h, and dipping temperature is 10-60 DEG C, and the solvent for impregnating selection is One or both of water, methanol, ethyl alcohol, acetone, ether.
Further, transition metal refer specifically to Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Nb, Mo, Ru, Pd, Ag, Cd, W, Any one or more in Al, Ga, In, Sn, Pb, Bi；The transition metal salt is nitrate, the nitrous of above-mentioned transition metal Hydrochlorate, sulfate, sulphite, villaumite, villiaumite, any one or more in acetate, the concentration of transition metal salt is 0.05-2mol/L。
Further, the carbon cloth of carrying transition metal salt is placed in tube furnace and carries out high-temperature process, handle institute Atmosphere is nitrogen, argon gas, hydrogen or argon hydrogen gaseous mixture, and treatment temperature is 600-1500 DEG C, soaking time 0.5-5h.
Further, the carbon cloth of embedded transition metal simple substance or its oxide is placed in tube furnace and carries out high temperature Oxidation/vulcanization/nitridation/phosphatization；Wherein atmosphere used in oxidation processes is oxygen or air, and treatment temperature is 250-550 DEG C, is protected The warm time is 5-20h；Atmosphere used in vulcanizing treatment is nitrogen or argon gas, and sulphur powder or thiocarbamide are placed on tube furnace by air inlet One end, treatment temperature be 150-450 DEG C, soaking time 5-15h；Atmosphere used in nitrogen treatment is nitrogen or argon gas, is incited somebody to action Urea is placed on one end that tube furnace leans on air inlet, or directly uses ammonia atmosphere, and treatment temperature is 150-800 DEG C, when heat preservation Between be 3-10h；Atmosphere used in phosphorating treatment be nitrogen or argon gas, by sodium hypophosphite/potassium hypophosphite be placed on tube furnace lean on into One end of port, treatment temperature are 200-450 DEG C, soaking time 1-5h；Wherein in vulcanization/nitridation/parkerizing process, transition gold Belong to simple substance or its oxide and sulphur powder/thiocarbamide/urea/sodium hypophosphite/potassium hypophosphite molar ratio is 1:0.2-1:10.
Combination electrode material made from the above method, for Jie for generating 2-50nm inside micron order phenolic aldehyde base carbon fibre Hole, nano particle are uniformly filled in mesoporous inside the carbon fiber, are formed nano particle and are embedded in mesoporous carbon fibrous inside Composite construction.
Further, the BET specific surface area of mesoporous carbon fiber is 700-1500m2/ g, specific pore volume product are 0.1-0.8cm3/g。
Further, the diameter of nano particle is 10-500nm, and nano particle compares carrying capacity relative to the quality of entire electrode For 10-70%, area ratio carrying capacity is 1-12mg/cm2。
The present invention compares compared with the prior art:
1, the flexible electrode material prepared does not need metal collector, binder and conductive agent, and active material is embedded in Carbon fiber (conductive current collector) is internal, effectively reduces electrode volume, is conducive to the energy density and power density that improve electrode.
2, the mesoporous carbon cloth prepared embeds composite transition metal and its oxide, sulfide, nitride, phosphide Flexible electrode is compared to the conventional electrode that active material is compounded in carbon fiber surface and is prepared, not only increase ion, The transport capability of electronics, while effectively reducing mass loss of the active material in cyclic process, apply supercapacitor, Lithium/sodium-ion battery and electro-catalysis etc. embody superior chemical property in fields.
3, the flexible electrode material prepared is not easily to fall off in folded bent process active material, and has preferable mechanics soft Tough performance can be efficiently applied to the preparation of flexible electronic device.
Detailed description of the invention
Fig. 1 is NiS in embodiment 12Nano particle/carbon cloth combination electrode material photo in kind；
Fig. 2 is the BET adsorption desorption curve of the mesoporous carbon cloth of gained in embodiment 1；
Fig. 3 is Ni nano particle/carbon fiber reinforced polymers scanning electron microscope image in embodiment 1；
Fig. 4 is NiS in embodiment 12Nano particle/carbon cloth combination electrode material scanning electron microscope image；
Fig. 5 is NiS in embodiment 12Nano particle/carbon cloth combination electrode material exists as negative electrode of lithium ion battery Cycle performance figure under 0.1A/g；
Fig. 6 is NiS in embodiment 12Nano particle/carbon cloth combination electrode material exists as sodium-ion battery cathode Cycle performance figure under 0.1A/g；
Fig. 7 is NiS in embodiment 12Nano particle/carbon cloth combination electrode material as sodium-ion battery cathode High rate performance figure；
Fig. 8 is Fe in embodiment 22O3Nano particle/carbon cloth combination electrode material exists as electrode of super capacitor Cycle performance figure under 10A/g.
Specific embodiment
Embodiment 1
One piece of phenolic resin based activated carbon fiber cloth is immersed in 100 DEG C of pretreatment 12h in concentrated nitric acid, it is clear with water and ethyl alcohol later Wash clean is spare.Pretreated carbon cloth is placed on 20 DEG C of immersion 6h in the nickel nitrate aqueous solution of 0.5M.Load is had The carbon cloth of nickel nitrate is placed in tube furnace, leads to argon hydrogen gaseous mixture, is heated to 800 DEG C, is kept the temperature 0.5h, is obtained mesoporous carbon fiber Tie up the compound of embedded nano nickle granules.Wherein the BET specific surface area of mesoporous carbon cloth is about 1100m2/ g, specific pore volume product is about For 0.5cm3/ g, nickel particle is having a size of 20-60nm.Obtained compound is placed in tube furnace, sulphur powder is placed on pipe Formula furnace leans on one end of air inlet, and the molar ratio of nickel and sulphur powder is 1:2 in compound, leads to argon gas, is heated to 200 DEG C, keeps the temperature 10h, It finally obtains mesoporous carbon cloth and embeds NiS2The combination electrode material of nano particle.NiS2Particle diameter is 50-120nm, quality It is about 30% than carrying capacity, area ratio carrying capacity is about 5mg/cm2.Fig. 1 is that mesoporous carbon fiber embeds NiS2The electrode material of nano particle Photo in kind, as can be seen from the figure the electrode material has preferable flexible；Fig. 2 is the BET of the mesoporous carbon cloth of gained Adsorption desorption curve；Fig. 3 is the scanning electron microscope image that mesoporous carbon fiber embeds nano nickle granules compound, from section, nickel Grain is evenly distributed in inside carbon fiber；Fig. 4 is that carbon fiber embeds NiS2The scanning electron microscope image of nano particle, NiS2Nanometer Grain is uniformly embedded in mesoporous carbon fibrous inside.
It will obtain NiS2Carbon fibre cloth is used as directly as test electrode, lithium metal to electrode, polypropylene screen conduct Diaphragm is assembled into lithium ion half-cell, electrolyte are as follows: 1M LiPF6/ DMC:EC=1:1, test charging/discharging voltage section are 0.01-3V.Fig. 5 is cycle performance figure of the lithium ion half-cell of production under 0.1A/g current density, is still protected after 500 circles 1000mAh/g is held, conservation rate about 95% is recycled.
It will obtain NiS2Carbon fibre cloth is directly as test electrode, and metallic sodium is used as to electrode, and glass fibre membrane is made Sodium ion half-cell, electrolyte are assembled into for diaphragm are as follows: 1M NaClO4/ EC:DEC (1:1)+2wt%FEC, test charge and discharge electricity It is 0.01-3V between pressure area.Cycle performance figure of the sodium ion half-cell of Fig. 6 production under 0.1A/g current density, after 200 circles 600mAh/g is still kept, conservation rate about 91% is recycled；Fig. 7 is the high rate performance figure of the sodium ion half-cell of production, in 5A/g Current density under capacity still keep 360mAh/g, embody preferable high rate performance.
Embodiment 2
One piece of phenolic resin based activated carbon fiber cloth is immersed in 90 DEG C of pretreatment 4h in concentrated nitric acid, is cleaned later with water and ethyl alcohol It is clean spare.Pretreated carbon cloth is placed in the iron chloride ethanol solution of 0.1M and is impregnated for 24 hours for 40 DEG C.Load is had The carbon cloth of iron chloride is placed in tube furnace, is led to argon gas, is heated to 900 DEG C, and 2h is kept the temperature, and obtains that mesoporous carbon fiber is embedded to be received The compound of rice iron particle.Obtained compound is placed in tube furnace, oxygen is led to, is heated to 350 DEG C, keeps the temperature 10h, most After obtain mesoporous carbon cloth embed Fe2O3The combination electrode material of nano particle.
The Fe that will be obtained2O3Carbon fibre cloth carries out three-electrode system test, platinized platinum as electrode material for super capacitor As to electrode, Ag/AgCl is as reference electrode, 1M Na2SO4As electrolyte, constant current charge-discharge survey is carried out at room temperature Examination, voltage range are -0.9-0V.Fig. 8 is Fe2O3Cycle performance figure of the carbon fibre cloth as electrode material for super capacitor, Specific capacity at 2A/g is 180F/g (being based on entire electrode), and the circulation conservation rate of 5000 circles is about 88% at 10A/g.
Embodiment 3
One piece of phenolic resin based activated carbon fiber cloth is immersed in 120 DEG C of pretreatment 4h in concentrated nitric acid, it is clear with water and ethyl alcohol later Wash clean is spare.Pretreated carbon cloth is placed on 20 DEG C of immersion 48h in the titanium tetrachloride aqueous solution of 0.05M.It will bear The carbon cloth for being loaded with titanium tetrachloride is placed in tube furnace, leads to argon gas, is heated to 1200 DEG C, is kept the temperature 1h, is obtained mesoporous carbon fiber Tie up the compound of embedded nano titania particle.Obtained compound is placed in tube furnace, leads to ammonia, is heated to 650 DEG C, 10h is kept the temperature, the combination electrode material that mesoporous carbon cloth embeds TiN nano particle is finally obtained.
Embodiment 4
One piece of phenolic resin based activated carbon fiber cloth is immersed in 100 DEG C of pretreatment 6h in concentrated nitric acid, it is clear with water and ethyl alcohol later Wash clean is spare.Pretreated carbon cloth is placed on 30 in the copper sulphate of 0.1M and the mixed aqueous solution of 0.1M cobaltous sulfate DEG C impregnate for 24 hours.There is the carbon cloth of copper sulphate and cobaltous sulfate to be placed in tube furnace load, lead to argon gas, be heated to 1000 DEG C, 2h is kept the temperature, the compound that mesoporous carbon fiber embeds Nanometer Copper and cobalt granule is obtained.Obtained compound is placed on tube furnace In, sodium hypophosphite is placed on one end that tube furnace leans on air inlet, the molar ratio of copper and cobalt and sodium hypophosphite is 1 in compound: 5, lead to argon gas, be heated to 400 DEG C, keep the temperature 2h, finally obtains mesoporous carbon cloth and embed Cu3P and Co2The compound electric of P nano particle Pole material.

Claims (10)

1. a kind of nano particle/carbon cloth combination electrode material preparation method, which is characterized in that by infusion process in pre- nitre Carrying transition metal salt in the micron order phenolic resin based activated carbon fiber of acid processing, then obtained in mesoporous carbon fiber by high-temperature process The combination electrode material of embedding transition metal simple substance or its oxide nano particles continues high-temperature oxydation/vulcanization/nitridation/phosphorus Change obtains mesoporous carbon fiber and embeds transition metal oxide/sulfide/nitride/phosphide nano particle combination electrode material Material.
2. nano particle according to claim 1/carbon cloth combination electrode material preparation method, which is characterized in that The diameter dimension of the micron order phenolic resin based activated carbon fiber is 2-20 μm.
3. nano particle according to claim 1/carbon cloth combination electrode material preparation method, which is characterized in that The pre- nitric acid treatment method of the phenolic resin based activated carbon fiber are as follows: carbon cloth is immersed in concentrated nitric acid, soaking temperature 40- 120 DEG C, soaking time 4-24h.
4. nano particle according to claim 1/carbon cloth combination electrode material preparation method, which is characterized in that The dip time of the infusion process is 6-48h, and dipping temperature is 10-60 DEG C, and the solvent for impregnating selection is water, methanol, ethyl alcohol, third One or both of ketone, ether.
5. nano particle according to claim 1/carbon cloth combination electrode material preparation method, which is characterized in that The transition metal refer specifically to Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Nb, Mo, Ru, Pd, Ag, Cd, W, Al, Ga, In, Sn, Any one or more in Pb, Bi；The transition metal salt be the nitrate of above-mentioned transition metal, nitrite, sulfate, Sulphite, villaumite, villiaumite, any one or more in acetate, the concentration of transition metal salt is 0.05-2mol/L.
6. nano particle according to claim 1/carbon cloth combination electrode material preparation method, which is characterized in that The carbon cloth of carrying transition metal salt is placed in tube furnace and carries out high-temperature process, handling atmosphere used is nitrogen, argon Gas, hydrogen or argon hydrogen gaseous mixture, treatment temperature are 600-1500 DEG C, soaking time 0.5-5h.
7. nano particle according to claim 1/carbon cloth combination electrode material preparation method, which is characterized in that The carbon cloth of embedded transition metal simple substance or its oxide is placed on progress high-temperature oxydation/vulcanization/nitridation/phosphorus in tube furnace Change；Wherein atmosphere used in oxidation processes is oxygen or air, and treatment temperature is 250-550 DEG C, soaking time 5-20h；Sulphur Changing processing atmosphere used is nitrogen or argon gas, and sulphur powder or thiocarbamide are placed on one end that tube furnace leans on air inlet, treatment temperature It is 150-450 DEG C, soaking time 5-15h；Atmosphere used in nitrogen treatment is nitrogen or argon gas, and urea is placed on tube furnace By one end of air inlet, or ammonia atmosphere is directly used, treatment temperature is 150-800 DEG C, soaking time 3-10h；At phosphatization Reason atmosphere used is nitrogen or argon gas, and sodium hypophosphite/potassium hypophosphite is placed on one end that tube furnace leans on air inlet, processing temperature Degree is 200-450 DEG C, soaking time 1-5h；Wherein, in vulcanization/nitridation/parkerizing process, transition metal simple substance or its oxide It is 1:0.2-1:10 with sulphur powder/thiocarbamide/urea/sodium hypophosphite/potassium hypophosphite molar ratio.
8. a kind of based on multiple made from nano particle described in claim 1-7/carbon cloth combination electrode material preparation method Composite electrode material, which is characterized in that the combination electrode material is that the mesoporous of 2-50nm is generated inside micron order phenolic aldehyde base carbon fibre, Nano particle is uniformly filled in mesoporous inside the carbon fiber, is formed nano particle and is embedded in the composite junction inside carbon fiber Structure.
9. combination electrode material according to claim 8, which is characterized in that the BET specific surface of the mesoporous carbon fiber Product is 700-1500m2/ g, specific pore volume product are 0.1-0.8cm3/g。
10. combination electrode material according to claim 8, which is characterized in that the diameter of the nano particle is 10- 500nm, nano particle relative to entire electrode quality than carrying capacity be 10-70%, area ratio carrying capacity be 1-12mg/cm2。
CN201710531488.4A 2017-06-30 2017-06-30 A kind of nano particle/carbon cloth combination electrode material and preparation method thereof Pending CN109216663A (en)

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CN111403179A (en) * 2020-03-30 2020-07-10 南方科技大学 Electrode material, preparation method and application thereof, super capacitor and secondary battery
CN111477864A (en) * 2020-04-13 2020-07-31 山东鲁北国际新材料研究院有限公司 Preparation method and application of superfine metal bismuth nano material
CN112201800A (en) * 2020-09-10 2021-01-08 广东德九新能源有限公司 High-conductivity graphitized carbon fiber electrode and preparation method and application thereof
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CN113488657A (en) * 2020-08-31 2021-10-08 中南大学 3D lithium-philic composite carbon fiber framework and preparation method and application thereof
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CN114953635A (en) * 2022-05-30 2022-08-30 安徽天富环保科技材料有限公司 Activated carbon fiber cloth for gas diffusion of new energy battery

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