CN104658765A - Stainless non-woven fabric based super-capacitor electrode material as well as preparation method and application - Google Patents
Stainless non-woven fabric based super-capacitor electrode material as well as preparation method and application Download PDFInfo
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- CN104658765A CN104658765A CN201510056357.6A CN201510056357A CN104658765A CN 104658765 A CN104658765 A CN 104658765A CN 201510056357 A CN201510056357 A CN 201510056357A CN 104658765 A CN104658765 A CN 104658765A
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- 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
- H01G11/66—Current collectors
- H01G11/68—Current collectors characterised by their material
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- 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
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
- H01G11/28—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
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- 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
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- 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
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- 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
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
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- 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 stainless non-woven fabric based super-capacitor electrode material as well as a preparation method and application. A stainless non-woven fabric is adopted as a substrate material, and a nano structure made of one of a metal oxide, a double-metal oxide, a double-metal sulfide, a metal hydroxide and a conductive polymer is grown on the substrate material in situ, so that the stainless non-woven fabric based super-capacitor electrode material of an in-situ grown nano structure can be obtained. When the substrate material is selected, compared with a carbon fabric and foamed nickel, the stainless non-woven fabric has the characteristics of light weight, high strength, rich active substances loaded in a unit area, and the like as the substrate material, both the mass ratio capacity and the area ratio capacitor of the electrode material prepared from the substrate material are greater than those of an electrode material prepared from the other two substrate materials. When the stainless non-woven fabric is adopted to prepare the super-capacitor electrode material, the integral area surrounded by a cyclic voltammetry curve is greater than those on the carbon fabric and the foamed nickel, and the capacitance of the electrode material based on the stainless steel non-woven fabric substrate is relatively high.
Description
Technical field
The present invention relates to the preparation of electrode material for super capacitor, in particular a kind of stainless steel nonwoven fabric base electrode material for super capacitor, preparation method and application.
Background technology
Increasingly the deterioration of the day by day deficient and environment of traditional fossil energy resource, effectively facilitates the development of the regenerative resource such as solar energy and wind energy.But solar energy, wind energy have fluctuation and intermittence, need effective energy storage device to ensure grid-connected work in electrical network that it can be stable.Meanwhile, the fast development of ev industry also, energy storage device that environmental friendliness, energy density high low in the urgent need to development cost.Ultracapacitor, also known as electrochemical capacitor, is a kind of novel energy-storing device between traditional capacitor and secondary cell.Its charge storage is far above Typical physical capacitor, and charge-discharge velocity, efficiency and fail safe are much better than storage battery.
Ultracapacitor can be divided into double electric layers supercapacitor and Faradic pseudo-capacitor (being fake capacitance again) by energy storage mechnism.But no matter be double electric layer capacitor or Faradic pseudo-capacitor, the process of its energy storage mainly occurs in the surface of electrode.The ratio capacitance of electrode material, conductivity, specific area and structural stability are that super capacitor energy stores and the decisive factor of conversion performance.Therefore, in order to improve energy density and power density, no matter be double electric layers supercapacitor, Faradic pseudo-capacitor, or both hybrid super capacitors, its electrode material must possess that specific area is large, conductivity is high and the characteristic such as Stability Analysis of Structures.
The preparation method of electrode material mainly contains coating and growth in situ two type.But the electrode material of coating preparation not only have lost the part specific area of its base material, and technique is loaded down with trivial details, and the electric charge in course of reaction can not be transmitted in time due to the interpolation of binding agent, conductivity declines.Meanwhile, the active material of coating, under mechanicals efforts, easily peels off.The electrode material of growth in situ type then can effectively avoid these problems, not only ensure that original position contacts good conductivity, and combines firmly, simple to operate.Meanwhile, the nano structural material of growth increases the specific area of electrode material to a great extent.
The three-dimensional conductive base material generally adopted at present is nickel foam and carbon cloth/paper.Although nickel foam has good conductivity and higher specific area, it is not corrosion-resistant, does not have pliability, and kinking is easily ruptured repeatedly.Although carbon cloth/paper has the advantages such as acid and alkali-resistance, good conductivity, pliability be good, but need before growth activity material to carry out hydrophilic treated with strong oxidizer on carbon cloth/paper, in addition bad mechanical strength, in atmosphere non-refractory, causes itself and a lot of synthetic method incompatible.Therefore, find a kind of newly be produced on a large scale corrosion-resistant, pliability is good, and the conductive substrates be extensively suitable for is particularly necessary.
Summary of the invention
It is large that another object of the present invention is to provide a kind of specific capacity, long service life, flexible super capacitor applied widely.
Technical scheme of the present invention is as follows:
First this law provides a kind of preparation method of stainless steel nonwoven fabric base electrode material for super capacitor, adopt stainless steel nonwoven fabrics as base material, the nanostructure of growth in situ metal oxide, bimetallic oxide, bimetallic sulfide, one of metal hydroxides and conducting polymer on this base material, obtains the stainless steel nonwoven fabric base Novel super capacitor electrode material of growth in situ nanostructure.
Described preparation method, specifically comprises the following steps:
A1, stainless steel nonwoven fabrics to be cleaned, remove organic and inorganic impurity;
A2, prepare the nanostructure reaction solution of corresponding growing metal oxide, bimetallic oxide, bimetallic sulfide, one of metal hydroxides and conducting polymer;
A3, the stainless steel nonwoven fabrics cleaned up is immersed in corresponding reaction solution;
A4, employing hydrothermal growth process, in 90-200 DEG C of baking oven, insulation 1-10h; Or employing electrochemical deposition method, by the stainless steel nonwoven fabrics folder after cleaning on the working electrode (s, saturated calomel electrode is reference electrode, and Pt sheet is to electrode, potentiostatic electrodeposition 1-60min under corresponding sedimentation potential;
Stainless steel nonwoven fabrics after A5, taking-up process, rinses dry, namely obtains the stainless steel nonwoven fabric base Novel super capacitor electrode material of growth in situ multidimensional nanostructure.
In described preparation method, described metal oxide is MnO
2, Fe
2o
3, Fe
3o
4, Co
3o
4, one of CoO; Bimetallic oxide is NiCo
2o
4, ZnCo
2o
4, NiMo
2o
4, ZnMn
2o
4one of; Bimetallic sulfide is NiCo
2s
4, ZnCo
2s
4, NiMo
2s
4, ZnMn
2s
4one of; Metal hydroxides Ni (OH)
2, Co (OH)
2, Fe (OH)
3, Ni
xco
(1-x)(OH)
6xone of; Conducting polymer is one of polyaniline (PAN), polypyrrole (PPY), poly-3,4-ethylene dioxythiophene (PEDOT).
In described preparation method, the electrode material obtained in described steps A 4 is growth the nano material of different-shape, comprises the nano material of different-shape of sheet, rod, line, pin and flower shape.
In described preparation method, in described steps A 5, for the stainless steel nonwoven fabrics of growth in situ metal oxide, bimetallic oxide on base material, after flushing drying, also to heat-treat: the reacted stainless steel nonwoven fabrics of drying is placed on Al
2o
3in crucible, be incubated 1-10h in 200-600 DEG C of air, by presoma pyrolysis.
Present invention also offers the stainless steel nonwoven fabric base electrode material for super capacitor that above-mentioned arbitrary described preparation method obtains.
Present invention also offers stainless steel nonwoven cloth material and prepare the application in stainless steel nonwoven fabric base electrode material for super capacitor, adopt stainless steel nonwoven fabrics as base material, in the nanostructure of this base material growth in situ metal oxide, bimetallic oxide, bimetallic sulfide, one of metal hydroxides and conducting polymer, obtain the stainless steel nonwoven fabric base Novel super capacitor electrode material of growth in situ nanostructure.
The present invention prepares has high-specific surface area, and suppleness is good, and growth has the stainless steel nonwoven fabric base electrode material of nanostructure, can be applied in energy storage, in electric automobile and various flexible electronic devices.
Accompanying drawing explanation
Fig. 1 be respectively at the bottom of carbon cloth, nickel foam and stainless steel nonwoven fabric base on grow NiCo
2o
4the cyclic voltammetry curve recorded after nanostructure, voltage range is-0.1-0.5V, and sweep speed is 5mV s
-1;
Fig. 2 be respectively at the bottom of carbon cloth, nickel foam and stainless steel nonwoven fabric base on grow NiCo
2o
4the constant current charge-discharge curve recorded after nanostructure, voltage range is-0.15-0.35V, and current density is 1A g
-1.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
The stainless steel nonwoven cloth material that the present invention adopts is the development and production of Belgian Bel Ka Te company, that to be that micron-sized stainless steel fibre is paved through nonwoven, folded by diameter join and high temperature sintering forms, be used for filtration system, its micro-structural is similar to carbon cloth, have three-dimensional netted, loose structure, porosity are high, surface area is large, even aperture distribution, pliability are good, mechanical strength is high, are a kind of desirable high temperature resistant, corrosion-resistant flexible 3 D base materials.
Stainless steel nonwoven fabrics is that stainless steel nonwoven fabrics is repressed in recent years for the predecessor of the stainless steel fibre felt (also cry stainless steel sinter felt) of filtration system in fact, be stainless steel fibre felt in the market after heat treatment.At present, just there is stainless steel fibre felt product in domestic Xinxiang Zhengyuan Purity Science & Technology Co., Ltd. (http://www.xxzyjh.com/cpzx/jssj/20140217338.html).But stainless steel fibre felt is too closely knit, and intensity is excessive, loses flexibility and the large advantage of porosity, be actually used in flexible energy storage substrate, can not repressed, the heat treated stainless steel nonwoven fabrics of bulk purchase the said firm.
Embodiment one: the stainless steel nonwoven fabric base electrode material preparation method of present embodiment Hydrothermal Growth nanostructure follows these steps to implement:
One, stainless steel nonwoven fabrics is cut into 1 × 3cm
2putting into 100mL beaker, then adding acetone to not having nonwoven fabrics, ultrasonic process about 7min, then with watery hydrochloric acid ultrasonic process 7min.Deionized water rinses repeatedly, then uses the ultrasonic 7min of absolute ethyl alcohol.Put into 80 DEG C of air dry ovens to dry.
Two, hydrothermal growth nano-structured solution is prepared: 0.65gNi (NO
3)
2, 1.3gCo (NO
3)
2, 1.62g urea, 45mL deionized water, 45mL absolute ethyl alcohol.
Three, reaction solution is put into teflon-lined reactor, dried stainless steel nonwoven fabrics is immersed in solution.
Four, reactor is tightened, put into 90 DEG C of-200 DEG C of thermostatic drying chambers, hydro-thermal 1-10h.
Five, after water heating kettle cools completely, take out reacted nonwoven fabrics deionized water rinsing, put into air dry oven 80 DEG C oven dry, the reacted stainless steel nonwoven fabrics of drying is placed on Al
2o
3in crucible, be incubated 1-10h in 200-600 DEG C of air, presoma pyrolysis is become NiCo
2o
4, namely obtaining growth has NiCo
2o
4the stainless steel nonwoven fabric base electrode material of nanostructure.
Embodiment two: the solution (5mmol Co (NO of the hydrothermal growth nanostructure that present embodiment and embodiment one are prepared unlike step 2
3)
2, 10mmol NH
4f, 25mmol Co (NH
2)
2, 70mL H
2o).Other step and parameter identical with embodiment one.Namely obtain growth and have Co
3o
4the stainless steel nonwoven fabric base electrode material of nanostructure.
Embodiment three: present embodiment and embodiment two add argon shield unlike during heat treatment.Other step and parameter identical with embodiment two.Obtain growing the stainless steel nonwoven fabric base electrode material having CoO nanostructure.The effect that present embodiment adds argon shield is to keep Co
2+at high temperature be not oxidized by oxygen.
Embodiment four: solution (the 48mg NiCl of the hydrothermal growth nanostructure that present embodiment and embodiment one are prepared unlike step 2
26H
2o, 75mg urea, 30mL H
2o) and without the need to the subsequent heat treatment of step 5.Other step and parameter identical with embodiment one.Namely obtain growth and have Ni (OH)
2the stainless steel nonwoven fabric base electrode material of nanostructure.
Embodiment five: present embodiment and embodiment one obtain growth unlike step 5 NiCo
2o
4after the stainless steel nonwoven fabric base electrode material of nanostructure, place it in the Na of 160mmol/L
2in S solution, hydro-thermal 1-10h at 90-200 DEG C, after water heating kettle cools completely, takes out reacted nonwoven fabrics deionized water rinsing, and put into air dry oven 80 DEG C oven dry, obtaining growth has NiCo
2s
4the stainless steel nonwoven fabric base electrode material of nanostructure.
Embodiment six: the stainless steel nonwoven fabric base electrode material preparation method of present embodiment electrochemical deposition method growth of nanostructures follows these steps to implement:
One, electrochemical deposition solution (5mmol Ni (NO is prepared
3)
2, 10mmol Co (NO
3)
2, 100mLH
2o);
Two, the stainless steel nonwoven fabrics processed through embodiment one step one is pressed from both sides on the working electrode (s, immersion deposition solution.Adopt Pt sheet to be to electrode, saturated calomel electrode is reference electrode.
Three, deposit with potentiostatic method, choose deposition voltage-1V, deposition 1-10min.
Four, post-depositional stainless steel nonwoven fabrics is taken out, first rinse with deionized water, then use washes of absolute alcohol.
Five, the sample after cleaning is put into 60 DEG C of air dry ovens to dry.
Present embodiment obtains growth Ni
xco
(1-x)(OH)
6xthe stainless steel nonwoven fabric base electrode material of nanostructure.
Embodiment seven: present embodiment and embodiment six adopt cyclic voltammetry to deposit unlike step 3, and take-off potential is-1.1V, stopping current potential is-0.5V, and sweep speed is 5-10mV/s, and sedimentation time is 20-60min.Other step and parameter identical with embodiment six.
Present embodiment obtains growth Ni
xco
(1-x)(OH)
6xthe stainless steel nonwoven fabric base electrode material of nanostructure.
Embodiment eight: electric depositing solution (the 10.05g HClO that present embodiment and embodiment six are prepared unlike step one
4, 4.65g aniline monomer AN, 100mL H
2o).Other step and parameter identical with embodiment six.
Present embodiment obtains the stainless steel nonwoven fabric base electrode material that growth has polyaniline (PAN) nanostructure.
Embodiment nine: the stainless steel nonwoven fabric base electrode material preparation method of present embodiment chemical deposition growth of nanostructures follows these steps to implement:
One, chemical deposit solution (0.493g HCl, 0.1g aniline monomer AN, 0.265g (NH is prepared
4)
2s
2o
8, 10mLH
2o);
Two, by the submergence of stainless steel nonwoven fabrics in the solution, low-temp reaction 1-10h.
Three, take out sample, with deionized water rinsing, put into 80 DEG C of air dry ovens and dry.
Present embodiment obtains growing the stainless steel nonwoven fabric base electrode material having PAN nanostructure.
Correspondingly, on the basis based on the preparation method of above-mentioned stainless steel nonwoven fabric base super capacitance electrode material, present invention also offers stainless steel nonwoven fabric base super capacitance electrode material.In the nature of things, this stainless steel nonwoven fabric base super capacitance electrode material can be prepared by said method, if prepare this stainless steel nonwoven fabric base super capacitance electrode material with additive method, so also in the scope disclosing and protect of the embodiment of the present invention.
Embodiment one: the stainless steel nonwoven fabric base electrode material preparation method of present embodiment Hydrothermal Growth nanostructure follows these steps to implement:
One, stainless steel nonwoven fabrics is cut into 1 × 3cm
2putting into 100mL beaker, then adding acetone to not having nonwoven fabrics, ultrasonic process about 7min, then with watery hydrochloric acid ultrasonic process 7min.Deionized water rinses repeatedly, then uses the ultrasonic 7 ~ 8min of absolute ethyl alcohol.Put into 80 DEG C of air dry ovens to dry.
Two, hydrothermal growth nano-structured solution is prepared: 0.65g Ni (NO
3)
2, 1.3g Co (NO
3)
2, 1.62g urea, 45mL deionized water, 45mL absolute ethyl alcohol.
Three, reaction solution is put into teflon-lined reactor, dried stainless steel nonwoven fabrics is immersed in solution.
Four, reactor is tightened, put into 100 DEG C of thermostatic drying chambers, hydro-thermal 8h.
Five, after water heating kettle cools completely, take out reacted nonwoven fabrics deionized water rinsing, put into air dry oven 80 DEG C oven dry, the reacted stainless steel nonwoven fabrics of drying is placed on Al
2o
3in crucible, be incubated 3h in 250 DEG C of air, presoma pyrolysis is become NiCo
2o
4, namely obtaining growth has NiCo
2o
4the stainless steel nonwoven fabric base electrode material of nanostructure.
Embodiment two: the stainless steel nonwoven fabric base electrode material preparation method of present embodiment electrochemical deposition method growth of nanostructures follows these steps to implement:
One, electrochemical deposition solution (5mmol Ni (NO is prepared
3)
2, 10mmol Co (NO
3)
2, 100mLH
2o)
Two, the stainless steel nonwoven fabrics processed through embodiment one step one is pressed from both sides on the working electrode (s, immersion deposition solution.Adopt Pt sheet to be to electrode, saturated calomel electrode is reference electrode.
Three, deposit with potentiostatic method, choose deposition voltage-1V, deposition 5min.
Four, post-depositional stainless steel nonwoven fabrics is taken out, first rinse with deionized water, then use washes of absolute alcohol.
Five, the sample after cleaning is put into 60 DEG C of air dry ovens to dry.
The present embodiment obtains growth Ni
xco
(1-x)(OH)
6xthe stainless steel nonwoven fabric base electrode material of nanostructure.
Adopt the method for embodiment one, grow NiCo on different substrates
2o
4nanostructure, test the mechanical property of the electrode material of different base and chemical property, result is as follows:
The density of table 1 different base, tensile strength and load NiCo
2o
4the comparison of amount and its specific capacity
Table 1 can be found out: compare with nickel foam with carbon cloth, stainless steel nonwoven fabrics light weight, and intensity is high, and the active material of unit are load is many, and no matter the electrode material prepared with it is that specific discharge capacity or area ratio capacity all exceed other two kinds of base materials.
Fig. 1 be respectively at the bottom of carbon cloth, nickel foam and stainless steel nonwoven fabric base on grow NiCo
2o
4the cyclic voltammetry curve recorded after nanostructure, voltage range is-0.1 0.5V, and sweep speed is 5mV s
-1.Fig. 1 can find out: grow NiCo at the bottom of stainless steel nonwoven fabric base
2o
4after nanostructure, the integral area that cyclic voltammetry curve surrounds, than large on carbon cloth and nickel foam, as can be seen here, the electric capacity based on the electrode material at the bottom of stainless steel nonwoven fabric base is higher.In addition, based on the NiCo of stainless steel nonwoven fabrics
2o
4the redox peak of nanostructure is more obvious, and also the sufficient proof high conductivity of three-dimensional stainless steel nonwoven fabrics, high porosity, high-specific surface area are very beneficial for the transmission of electronics, ion.
Fig. 2 be respectively at the bottom of carbon cloth, nickel foam and stainless steel nonwoven fabric base on grow NiCo
2o
4the constant current charge-discharge curve recorded after nanostructure, voltage range is-0.15-0.35V, and current density is 1A g
-1.Fig. 2 can find out three kinds of substrates grow NiCo
2o
4the charging and discharging curve of the electrode material of preparation is not all straight line, and the existence of Faraday pseudo-capacitance is described.Meanwhile, under identical current density, based on the NiCo of stainless steel nonwoven fabrics
2o
4discharge platform, the time of nanostructure are longer, and therefore, its electric capacity had is also higher, consistent with cyclic voltammetry curve acquired results.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (7)
1. the preparation method of a stainless steel nonwoven fabric base electrode material for super capacitor, it is characterized in that, adopt stainless steel nonwoven fabrics as base material, the nanostructure of growth in situ metal oxide, bimetallic oxide, bimetallic sulfide, one of metal hydroxides and conducting polymer on this base material, obtains the stainless steel nonwoven fabric base Novel super capacitor electrode material of growth in situ nanostructure.
2. preparation method according to claim 1, is characterized in that, comprises the following steps:
A1, stainless steel nonwoven fabrics to be cleaned, remove organic and inorganic impurity;
A2, prepare the nanostructure reaction solution of corresponding growing metal oxide, bimetallic oxide, bimetallic sulfide, one of metal hydroxides and conducting polymer;
A3, the stainless steel nonwoven fabrics cleaned up is immersed in corresponding reaction solution;
A4, employing hydrothermal growth process, in 90-200 DEG C of baking oven, insulation 1-10h; Or employing electrochemical deposition method, by the stainless steel nonwoven fabrics folder after cleaning on the working electrode (s, saturated calomel electrode is reference electrode, and Pt sheet is to electrode, potentiostatic electrodeposition 1-60min under corresponding sedimentation potential;
Stainless steel nonwoven fabrics after A5, taking-up process, rinses dry, namely obtains the stainless steel nonwoven fabric base Novel super capacitor electrode material of growth in situ multidimensional nanostructure.
3. preparation method according to claim 2, is characterized in that, described metal oxide is MnO
2, Fe
2o
3, Fe
3o
4, Co
3o
4, one of CoO; Bimetallic oxide is NiCo
2o
4, ZnCo
2o
4, NiMo
2o
4, ZnMn
2o
4one of; Bimetallic sulfide is NiCo
2s
4, ZnCo
2s
4, NiMo
2s
4, ZnMn
2s
4one of; Metal hydroxides Ni (OH)
2, Co (OH)
2, Fe (OH)
3, Ni
xco
(1-x)(OH)
6xone of; Conducting polymer is one of polyaniline (PAN), polypyrrole (PPY), poly-3,4-ethylene dioxythiophene (PEDOT).
4. preparation method according to claim 2, is characterized in that, the electrode material obtained in described steps A 4 is growth the nano material of different-shape, comprises the nano material of different-shape of sheet, rod, line, pin and flower shape.
5. preparation method according to claim 2, it is characterized in that, in described steps A 5, for the stainless steel nonwoven fabrics of growth in situ metal oxide, bimetallic oxide on base material, after flushing drying, also to heat-treat: the reacted stainless steel nonwoven fabrics of drying is placed on Al
2o
3in crucible, be incubated 1-10h in 200-600 DEG C of air, by presoma pyrolysis.
6. according to the stainless steel nonwoven fabric base electrode material for super capacitor that the arbitrary described preparation method of claim 1-5 obtains.
7. stainless steel nonwoven cloth material is preparing the application in stainless steel nonwoven fabric base electrode material for super capacitor, it is characterized in that, adopt stainless steel nonwoven fabrics as base material, in the nanostructure of this base material growth in situ metal oxide, bimetallic oxide, bimetallic sulfide, one of metal hydroxides and conducting polymer, obtain the stainless steel nonwoven fabric base Novel super capacitor electrode material of growth in situ nanostructure.
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