CN110148528A - MnOx/CoNi-LDH/CFP composite electrode material for super capacitor and preparation method thereof - Google Patents
MnOx/CoNi-LDH/CFP composite electrode material for super capacitor and preparation method thereof Download PDFInfo
- Publication number
- CN110148528A CN110148528A CN201910449142.9A CN201910449142A CN110148528A CN 110148528 A CN110148528 A CN 110148528A CN 201910449142 A CN201910449142 A CN 201910449142A CN 110148528 A CN110148528 A CN 110148528A
- Authority
- CN
- China
- Prior art keywords
- coni
- ldh
- mnox
- cfp
- electrode material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- 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
-
- 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 MnOx/CoNi-LDH/CFP composite electrode material for super capacitor and preparation method thereof, existing binary combination electrode material specific capacitance, multiplying power property and stability are relatively low, the present invention uses electrochemical deposition method first, using carbon fiber paper as substrate, cobalt nitrate and nickel nitrate mixed solution are as electrolyte, prepare the CoNi-LDH of reticular structure, the method for next proceeding through electrochemical deposition is compound with MnOx by CoNi-LDH, obtains MnOx/CoNi-LDH/CFP combination electrode material.Low production cost, specific capacitance are high, power characteristic is excellent, good cycling stability.Fundamentally overcome electrode material prepared by other chemical methodes easy to reunite, poorly conductive, the low disadvantage of activity.
Description
Technical field
The invention belongs to supercapacitor combination electrode material technical fields.Specifically related to simple two steps electricity
Chemical deposition prepares MnOx/CoNi-LDH/CFP composite electrode material for super capacitor.
Background technique
Global warming and energy crisis have become facing mankind severe challenge, and the energy storage device of Development of Novel becomes 21
The century mankind solve the new effective way of energy problem.Energy storage device mainly has battery and electrochemical capacitor, battery energy at present
Metric density is high, but power density and stability are poor, and electric chemical super capacitor is as a kind of novel green energy resource, charge and discharge
Electric speed is fast, it is environmental-friendly, have extended cycle life, but since energy density is low, store identical energy, supercapacitor is often
It does not take advantage in terms of quality and volume；In addition ruthenium-oxide is ideal electrode material for super capacitor, has high conductivity
With high electrochemical stability, but high cost brought by your dilute property become its commercialized major obstacle, therefore improve electricity
It pole material specific capacitance and reduces cost and further develops faced significant challenge as supercapacitor.
Traditional electrode material is often chemical synthesis various powdered substances, draws in the process needs that electrode is made
Enter binder, the addition of binder can improve resistance in material, reduce the specific surface area of material, to substantially reduce active material
Capacitive property, design and the reasonable nano-film electrode of preparation structure, for develop high-performance super capacitor electrode material
Expect most important.
The preparation of electrode material is concentrated mainly on two classes at present, first is that electric double layer capacitance carbon material, its main feature is that conductivity
Height, surface area is big and stability is good, but specific volume is generally lower；The another kind of conducting polymer materials for being used as faraday's capacitor
And metal (hydrogen) oxide material, specific volume is generally higher, but stability is poor.Find low-cost and high-performance electrode material be
Current research hotspot.MnOx, with high electrochemical reversibility and theoretical specific capacitance, cycle life, low cost, is great
The electrode material of Research Prospects, but specific capacitance, multiplying power property and the stability reported at present are relatively low.Researcher is prepared for
A variety of composite materials improve the capacitive property, such as Jin of MnOx et al. (Jin E M, Lim J G, Jeong S M.Facile
synthesis of graphene-wrapped CNT-MnO2 nanocomposites for asymmetric
electrochemical capacitors[J].Journal of industrial and engineering
Chemistry, 2017,54:421-427.) pass through chemical reaction acquisition CNT-MnO2Composite material, highest specific capacitance are
202F/g recycles by 1000 times, keeps 94% specific capacitance；Huang et al. (Huang M, Zhang Y, Li F, et
al.Facile synthesis of hierarchical Co3O4@MnO2 core–shell arrays on Ni foam
for asymmetric supercapacitors[J].Journal of Power Sources,2014,252:98-106.)
It is prepared for Co3O4@MnO2Combination electrode material, maximum specific capacitance be 560F/g, by 5000 times recycle, keep 95% it is initial
Specific capacitance；The MnOx/CFP electrode highest specific capacitance that we prepare is 220F/g.Carbon fiber paper (CFP) has high conductivity,
It is ideal collector material.CoNi-LDH has high network structure, and electrode active material utilization rate can be improved.In order to big
Amplitude improves the capacitive property (including specific capacitance, power characteristic etc.) of MnOx, and the present invention is using the carbon fiber paper of high conductivity
Substrate, then the transition zone of the layer structure of the CoNi-LDH of electrochemical deposition high-specific surface area, high electric as substrate grown
Chemically active MnOx, obtains the high-performance MnOx/CoNi-LDH/CFP combination electrode of binder free, this compound system does capacitor
Device electrode has not been reported.
Summary of the invention
In order to solve the disadvantage that the above-mentioned prior art, the present invention proposes a kind of to prepare supercapacitor Combined electrode material
The method of material.Electrochemical deposition method is used first, and using carbon fiber paper as substrate, cobalt nitrate and nickel nitrate mixed solution are as electricity
Liquid is solved, the CoNi-LDH of reticular structure is prepared, the method for next proceeding through electrochemical deposition is compound with MnOx by CoNi-LDH,
Obtain MnOx/CoNi-LDH/CFP combination electrode.Low production cost, specific capacitance height, good cycling stability.Fundamentally overcome
The electrode material of other chemical methodes preparations is easy to reunite, poorly conductive, the low disadvantage of activity.
Structure is with CFP substrate, and area load has the CoNi-LDH of tridimensional network and a small amount of flower-like structure,
The surface CoNi-LDH further deposits one layer of MnOx, and pattern still keeps the three-dimensional net structure and a small amount of flower-shaped knot of CoNi-LDH
Structure, the mass ratio between CoNi-LDH and MnOx are 2:1.
Specific step is as follows for preparation method:
1) mixed electrolytic solution of cobalt nitrate and nickel nitrate is placed into constant temperature water bath, regulating thermostatic water bath temperature makes
It keeps the temperature 10~30min when being warming up to 35~65 DEG C, and electrochemical deposition system is made to maintain constant temperature；The mixing of cobalt nitrate and nickel nitrate
0.01~1M of total concentration of electrolyte
2) CFP substrate is immersed in the mixed electrolytic solution of cobalt nitrate and nickel nitrate, carries out electrochemical deposition, sedimentation potential choosing
- 0.6V~-1.1V is selected, 0.70C electricity is deposited；
3) CoNi-LDH/CFP composite material is taken out after the completion of deposition, multiple, vacuum of cleaning cathode surface with deionized water
Drying box drying；
4) liquor potassic permanganate is placed into constant temperature water bath, regulating thermostatic water bath temperature is allowed to warm to 35~65
DEG C when keep the temperature 10~30min, make electrochemical deposition system maintain constant temperature；Liquor potassic permanganate concentration is 0.01~1M；
5) the CoNi-LDH/CFP composite material for obtaining step 3) immerses in liquor potassic permanganate, and it is heavy to carry out electrochemistry
Product, sedimentation potential selection -0.4V~-1.1V deposit 0.90C electricity；
6) product is taken out after the completion of deposition, it is multiple clean cathode surface with deionized water, and vacuum oven obtains after drying
MnOx/CoNi-LDH/CFP combination electrode material.
Preferred nitric acid cobalt concentration 0.08M and nitric acid nickel concentration 0.02M in step 1)；Preferably 45 DEG C of water bath temperature；
Sedimentation potential is preferably -0.9V in step 2)；
Preferred potassium permanganate concentration 0.02M in step 4)；
Sedimentation potential is preferably -0.6V in step 5).
Beneficial effects of the present invention:
1) firstly, the CoNi-LDH/CFP in the present invention is prepared by electrochemical deposition method, method is simple, material
With big network structure, large specific surface area, good dispersion, conductivity is high, and the utilization rate of active material can be greatly improved, have
Conducive to the raising of specific capacitance and power density.
2) secondly, we further obtain MnOx/CoNi-LDH/CFP combination electrode, operation by electrochemical deposition method
Easy, step is simple, and material purity is high, and activity is strong.
3) preparation method of this combination electrode may be implemented active material and be deposited directly on collector, without adding
Other conductive agents, binder, to improve the purity of electrode material.In addition, the method active material can be deposited directly to electricity
Pole surface overcomes the disadvantages of previous preparation method by high temperature and pressure destroys active material pattern, so that active material obtains
With effective use.
3) again, there is very high specific surface area active and suitable ion by combination electrode material prepared by the method
Transmission channel, chemical property is superior, low production cost.
Detailed description of the invention
Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c) are that the present invention is embodiment 1, embodiment 2,3 combination electrode material of embodiment respectively
The charge and discharge electrograph of material；(current density 2A/g).
Fig. 2 is the scanning electron microscope diagram of 1 MnOx/CoNi-LDH/CFP combination electrode material of example.
Fig. 3 is the XPS figure of 1 MnOx/CoNi-LDH/CFP combination electrode material of example.
Fig. 4 is 1 MnOx/CoNi-LDH/CFP combination electrode material current density of example when being 32A/g by 20000 times
Recycle specific volume variation diagram.
Specific embodiment:
Embodiment 1
A method of MnOx/CoNi-LDH/CFP combination electrode is prepared, uses electrochemical deposition method, first with CFP
For substrate, cobalt nitrate and nickel nitrate mixed solution prepare the CoNi-LDH of reticular structure, next proceed through electricity as electrolyte
The method of chemical deposition is compound with MnOx by CoNi-LDH, obtains MnOx/CoNi-LDH/CFP combination electrode, specific steps packet
It includes:
Step 1): CFP substrate is immersed in the electrolytic cell equipped with cobalt nitrate and nickel nitrate mixed electrolytic solution, and by electrolytic cell
It is placed in constant temperature water bath, when being warming up to 45 DEG C, keeps the temperature 10min, electrochemical deposition system is made to maintain constant temperature.
Step 2): constant voltage source current potential is adjusted to -0.9V, by the predetermined deposition electricity 0.70C of experiment in three-electrode system
(CFP is working electrode, and platinized platinum is to electrode, and saturated calomel electrode SCE is reference electrode) carries out electro-deposition, cobalt nitrate and nitric acid
Nickel mixed electrolytic solution total concentration 0.1M (cobalt nitrate 0.02M, nickel nitrate 0.08M)；After electrolysis, with deionized water cleaning electrode
Surface is multiple, and naturally dry obtains CoNi-LDH/CFP electrode.
Step 3): CoNi-LDH/CFP electrode obtained in the previous step is immersed to the electrolytic cell of the electrolyte equipped with potassium permanganate
In, and electrolytic cell is placed in constant temperature water bath, when being warming up to 35~65 DEG C, 10~30min is kept the temperature, electrochemical deposition system is made
Maintain constant temperature.
Step 4): constant voltage source current potential is adjusted to -0.6V, by the predetermined deposition electricity 0.90C of experiment in three-electrode system
It is heavy that (CoNi-LDH/CFP electrode is working electrode, and platinized platinum is to electrode, and saturated calomel electrode SCE is reference electrode) carries out electricity
Product, potassium permanganate concentration 0.02M；After electrolysis, multiple with deionized water cleaning electrode surface, vacuum oven is obtained by drying
To MnOx/CoNi-LDH/CFP combination electrode.
Using three-electrode system, (Pt is, to electrode, saturated calomel electrode SCE is reference electrode, MnOx/CoNi-LDH/CFP
Combination electrode is working electrode) electrochemical property test, including cyclic voltammetry and constant current charge-discharge test are carried out, using electricity
Solve the KOH that liquid is 1mol/L, charging/discharging voltage: -0.15~0.35V, current density are as follows: 2A/g, specific volume is up to 1560F/g.It is real
Apply example 2:
1 step 2) constant potential value -0.6V of embodiment is changed into -0.7V, remaining step is same as Example 1, compound electric
Pole material specific volume is up to 681F/g.
Embodiment 3:
1 step 2) constant potential value -0.6V of embodiment is changed into -0.8V, remaining step is same as Example 1, compound electric
Pole material specific volume is up to 839F/g.
According to the exemplary method of foregoing invention, MnOx/CoNi-LDH/CFP combination electrode can be obtained, the compound electric is great
It has the following characteristics that
1) combination electrode material passes through scanning electron microscopic observation (Fig. 2), it can be seen that prepared combination electrode material is in piece
Shape petal pattern, and it is uniformly distributed presentation network structure, there is high specific surface area.
2) higher (under the current density of 1A/g, specific capacitance can reach obtained electrode material specific volume under the conditions of embodiment 1
To 1070F/g), power characteristic it is good (1070F/g (1A/g), 1016F/g (2A/g), 944F/g (4A/g), 832F/g (8A/g),
704F/g (16A/g)), cyclical stability height (recycle 20000 specific volumes under 32A/g current density and still keep 82%).
Claims (7)
1.MnOx/CoNi-LDH/CFP composite electrode material for super capacitor, which is characterized in that the structure of the material is with CFP
Substrate, area load have the CoNi-LDH of tridimensional network and a small amount of flower-like structure, and the surface CoNi-LDH further deposits
One layer of MnOx, pattern still keeps the three-dimensional net structure and a small amount of flower-like structure of CoNi-LDH, between CoNi-LDH and MnOx
Mass ratio be 2:1.
2. the preparation method of MnOx/CoNi-LDH/CFP composite electrode material for super capacitor as described in claim 1, specifically
Steps are as follows:
1) mixed electrolytic solution of cobalt nitrate and nickel nitrate is placed into constant temperature water bath, regulating thermostatic water bath temperature makes its liter
10~30min is kept the temperature when temperature is to 35~65 DEG C, and electrochemical deposition system is made to maintain constant temperature；The mixing of cobalt nitrate and nickel nitrate is electrolysed
0.01~1M of total concentration of liquid；
2) CFP substrate is immersed in the mixed electrolytic solution of cobalt nitrate and nickel nitrate, carries out electrochemical deposition, sedimentation potential selection-
0.6V~-1.1V deposits 0.70C electricity；
3) CoNi-LDH/CFP composite material is taken out after the completion of deposition, it is multiple clean cathode surface with deionized water, is dried in vacuo
Case drying；
4) liquor potassic permanganate is placed into constant temperature water bath, when regulating thermostatic water bath temperature is allowed to warm to 35~65 DEG C
10~30min is kept the temperature, electrochemical deposition system is made to maintain constant temperature；Liquor potassic permanganate concentration is 0.01~1M；
5) the CoNi-LDH/CFP composite material for obtaining step 3) immerses in liquor potassic permanganate, carries out electrochemical deposition, sinks
Product current potential selection -0.4V~-1.1V, deposits 0.90C electricity；
6) product is taken out after the completion of deposition, it is multiple clean cathode surface with deionized water, and vacuum oven obtains MnOx/ after drying
CoNi-LDH/CFP combination electrode material.
3. the preparation method of MnOx/CoNi-LDH/CFP composite electrode material for super capacitor according to claim 2,
It is characterized in that, nitric acid cobalt concentration is 0.08M in step 1), and nitric acid nickel concentration is 0.02M；Water bath temperature is 45 DEG C.
4. the preparation method of MnOx/CoNi-LDH/CFP composite electrode material for super capacitor according to claim 2,
It is characterized in that, sedimentation potential is -0.9V in step 2).
5. the preparation method of MnOx/CoNi-LDH/CFP composite electrode material for super capacitor according to claim 2,
It is characterized in that, potassium permanganate concentration is 0.02M in step 4).
6. the preparation method of MnOx/CoNi-LDH/CFP composite electrode material for super capacitor according to claim 2,
It is characterized in that, sedimentation potential is -0.6V in step 5).
7. MnOx/CoNi-LDH/CFP composite electrode material for super capacitor as described in claim 1 is used for supercapacitor
The purposes of electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449142.9A CN110148528A (en) | 2019-05-28 | 2019-05-28 | MnOx/CoNi-LDH/CFP composite electrode material for super capacitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449142.9A CN110148528A (en) | 2019-05-28 | 2019-05-28 | MnOx/CoNi-LDH/CFP composite electrode material for super capacitor and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110148528A true CN110148528A (en) | 2019-08-20 |
Family
ID=67593311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910449142.9A Pending CN110148528A (en) | 2019-05-28 | 2019-05-28 | MnOx/CoNi-LDH/CFP composite electrode material for super capacitor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110148528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185714A (en) * | 2020-10-12 | 2021-01-05 | 广西大学 | Cellulose nanofibril/carbon nanotube/cobaltosic oxide/cobalt-nickel double hydroxide flexible electrode and preparation method thereof |
| CN114985723A (en) * | 2022-06-01 | 2022-09-02 | 江苏科技大学 | Antimony-bismuth alloy material, preparation method thereof and application thereof in sodium secondary battery cathode |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938331A (en) * | 2012-10-11 | 2013-02-20 | 吉林大学 | Foam nickel-base MnO2/C composite electrode material and preparation method thereof |
| CN103035409A (en) * | 2011-10-09 | 2013-04-10 | 海洋王照明科技股份有限公司 | Graphene composite electrode and preparation method and application |
| CN103258656A (en) * | 2013-04-25 | 2013-08-21 | 华中科技大学 | Method for preparing electrodes of super capacitor based on nickel foam and products thereof |
| CN104465119A (en) * | 2014-11-28 | 2015-03-25 | 国家纳米科学中心 | Super capacitor based on three-dimensional ZnO@MnO2 composite nano array interdigital electrode and manufacturing method thereof |
| CN105304349A (en) * | 2015-10-15 | 2016-02-03 | 安徽师范大学 | Preparation method for electrode MnO2@Ni-Al LDH composite material of super capacitor |
| CN108847358A (en) * | 2018-05-22 | 2018-11-20 | 上海工程技术大学 | The preparation method and application of three-dimensional porous manganese dioxide/graphene composite material |
-
2019
- 2019-05-28 CN CN201910449142.9A patent/CN110148528A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103035409A (en) * | 2011-10-09 | 2013-04-10 | 海洋王照明科技股份有限公司 | Graphene composite electrode and preparation method and application |
| CN102938331A (en) * | 2012-10-11 | 2013-02-20 | 吉林大学 | Foam nickel-base MnO2/C composite electrode material and preparation method thereof |
| CN103258656A (en) * | 2013-04-25 | 2013-08-21 | 华中科技大学 | Method for preparing electrodes of super capacitor based on nickel foam and products thereof |
| CN104465119A (en) * | 2014-11-28 | 2015-03-25 | 国家纳米科学中心 | Super capacitor based on three-dimensional ZnO@MnO2 composite nano array interdigital electrode and manufacturing method thereof |
| CN105304349A (en) * | 2015-10-15 | 2016-02-03 | 安徽师范大学 | Preparation method for electrode MnO2@Ni-Al LDH composite material of super capacitor |
| CN108847358A (en) * | 2018-05-22 | 2018-11-20 | 上海工程技术大学 | The preparation method and application of three-dimensional porous manganese dioxide/graphene composite material |
Non-Patent Citations (1)
| Title |
|---|
| LIMIN CHANG等: "Synthesis of Co(OH)2/Ni(OH)2 nanomaterials with excellent pseudocapacitive behavior and high cycling stability for supercapacitors", 《JOURNAL OF ELECTROANALYTICAL CHEMISTRY》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185714A (en) * | 2020-10-12 | 2021-01-05 | 广西大学 | Cellulose nanofibril/carbon nanotube/cobaltosic oxide/cobalt-nickel double hydroxide flexible electrode and preparation method thereof |
| CN112185714B (en) * | 2020-10-12 | 2022-01-04 | 广西大学 | Cellulose nanofibril/carbon nanotube/cobaltosic oxide/cobalt-nickel double hydroxide flexible electrode and preparation method thereof |
| CN114985723A (en) * | 2022-06-01 | 2022-09-02 | 江苏科技大学 | Antimony-bismuth alloy material, preparation method thereof and application thereof in sodium secondary battery cathode |
| CN114985723B (en) * | 2022-06-01 | 2024-01-26 | 江苏科技大学 | Antimony bismuth alloy material, preparation method thereof and application thereof in negative electrode of sodium secondary battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103065806B (en) | Sodion-embedded manganese dioxide nanometer sheet electrode as well as preparation method and application of electrode | |
| CN103956483B (en) | The preparation method and application of cobalt acid zinc/nickel oxide core-shell nano linear array | |
| CN102938331A (en) | Foam nickel-base MnO2/C composite electrode material and preparation method thereof | |
| CN106206065A (en) | A kind of electrode material for super capacitor MnO2the preparation method of@PDA nano composite material | |
| CN110428976B (en) | Preparation method and application of Cu-Co-S-MOF nanosheet | |
| CN110010359B (en) | Preparation method of nickel/cobalt hydroxide composite electrode material | |
| CN110265643A (en) | A kind of Sb2O5The preparation method of/carbon cloth flexibility anode material of lithium-ion battery | |
| CN104022285A (en) | SnO2@polymer coaxial heterogeneous nano rod array structural material as well as preparation method and application thereof | |
| CN110993362A (en) | Novel three-dimensional electrode material, preparation method thereof and application thereof in super capacitor | |
| CN111403184A (en) | Nano carbon doped MnO2Preparation method of heterojunction flexible electrode | |
| CN106206082B (en) | The preparation method and application of nickel oxide/graphene combination electrode with electrochemical capacitance energy storage characteristic | |
| CN103854875A (en) | Polyaniline/MnO2 compound modified three-dimensional graphene composite material, preparation method and application of composite material | |
| CN108123141A (en) | A kind of three-dimensional porous foams grapheme material and its application | |
| CN109786135A (en) | A kind of copper oxide@nickel molybdate/foam copper combination electrode material and preparation method thereof | |
| CN109390162A (en) | A kind of manganese cobalt sulfide/redox graphene composite material and preparation method with excellent electrochemical performance | |
| CN105355462A (en) | Preparation method and application for delta-MnO2 thick film pseudocapacitor electrode | |
| CN110310835A (en) | A kind of nano flower-like NiS@NiCo2S4Micro-, nano-electrode material and its preparation method and application | |
| CN110148528A (en) | MnOx/CoNi-LDH/CFP composite electrode material for super capacitor and preparation method thereof | |
| CN111268745A (en) | NiMoO4@Co3O4Core-shell nano composite material, preparation method and application | |
| CN108281292B (en) | Preparation method and application of Ni-Co-S nanoneedle array | |
| CN110223850A (en) | A kind of quick in situ preparation method of high-performance nickel hydroxide electrode material | |
| CN108987123A (en) | A kind of manganese dioxide-expanded graphite-cotton fiber tri compound electrochemical capacitance electrode material and preparation method thereof | |
| CN112467077A (en) | Universal electrochemical modification preparation method for effectively enhancing electricity storage performance of multiple transition metal oxides | |
| CN107833757A (en) | A kind of high-performance SiC@NiCo2O4/Ni(OH)2Hybrid supercapacitor positive electrode | |
| CN110400699A (en) | A kind of nano flower-like Ni@NiMoO4@Ni3S2Micro-, nano-electrode material preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190820 |
|
| RJ01 | Rejection of invention patent application after publication |