CN103956274A - Super capacitor combined electrode preparing method - Google Patents
Super capacitor combined electrode preparing method Download PDFInfo
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- CN103956274A CN103956274A CN201410162671.8A CN201410162671A CN103956274A CN 103956274 A CN103956274 A CN 103956274A CN 201410162671 A CN201410162671 A CN 201410162671A CN 103956274 A CN103956274 A CN 103956274A
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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
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Abstract
The invention discloses a super capacitor combined electrode preparing method. Nanoscale metallic oxide is grown on a nanometer multi-hole metal framework through an appropriate deposition method, and the nanoscale metallic oxide is processed sequentially to achieve electrode materials which are excellent in capacitive performance and suitable for energy storing devices like super capacitors. The preparing method is simple, moderate in condition, simple in technical parameter and lower in cost. The super capacitor electrode materials prepared in the preparing method have large specific capacitance. The high-performance combined electrodes can be widely applied to the technical fields of micro energy storing devices, sensors, flexible electric devices and the like, are suitable for development of energy storing devices in the future and have considerable application prospect.
Description
Technical field
The invention belongs to electrochemical energy field of compound material, relate to a kind of preparation method of super capacitor composite electrode.
Background technology
Along with social development, people are more and more for the demand of energy device, also more and more higher to the requirement of its performance.Secondary is capable of circulation, microminaturization and energy density, energy device that power density is high are more and more subject to people's favor.Ultracapacitor, this capacitor based on electrochemical principle, aspect the ability of fast charging and discharging and store electrical energy between traditional physical capacitor and chemical cell, become gradually a kind of powerful candidate, and part practical application be efficiently, the electrochemical energy storage of high capacity, the equipment of transferring energy.
Conventional electrode material for super capacitor cannot meet the practical demands such as high power density, high energy energy density, structural stability at present.And the structure of this nanometer designing in the present invention and micron combination has been considered to current best electrode structure, both adopted dispersed nano level active particle on micrometer level porous skeleton.This structure is often called as the structure of three-dimensional co-continuous, on the one hand, and according to theoretical τ=L diffusion time
2/ D, reduces the diffusional resistance of ion; For electron transfer provides passage, impel relevant reaction to occur on the other hand, reduce impedance.This nano porous metal/metal oxide composite electrode will be conducive to solve the problems of current energy storage device electrode material in future.
Summary of the invention
The defect existing for prior art, the object of the present invention is to provide a kind of preparation method of super capacitor composite electrode, the metal oxide/nano porous metal skeleton super capacitor composite electrode that prepare a kind of high specific capacitance, Low ESR, has extended cycle life.
For achieving the above object, the present invention adopts following technical scheme:
A preparation method for super capacitor composite electrode, comprises the steps:
1) prepare stephanoporate framework thin layer;
2) above-mentioned nanoporous skeleton thin layer is spread in substrate as Composite Set electrode;
3) by depositing metal oxide active material on above-mentioned Composite Set electrode thin slice.
Nanoporous skeleton in described step 1) adopts porous metal material.
Described step 2) in substrate comprise high molecular polymer flexible material or rigid material.
Described step 2) in prepare Composite Set electrode method be resistant alloy method or glue crystal template method.
Burning active substances in described step 3) comprises ultracapacitor metal oxide electrode material.
Deposition process in described step 3) comprises physical deposition method and chemical deposition.
The present invention has the following advantages and effect with respect to prior art tool:
The super capacitor composite electrode that the present invention prepares, has larger ratio electric capacity than common equal electrochemical active material electrode, for conventional electrodes material is than 3 ~ 4 times of electric capacity, has very macro-energy density and power density.It is extensive that substrate relates to material, and electrode structural designs is reasonable, more can bear the electrochemistry stress infringement in frequent charge and discharge process, has better cycle life.Electrode structure of the present invention is conducive to alleviate the electrochemistry stress in charge and discharge process in addition, has less impedance and longer cycle life, adapts to the development trend of following energy storage device microminiaturization.Preparation method of the present invention is simple, and more environmental protection of raw material used, cost are low, and equipment used is simple, is conducive to large-scale application in the energy storage devices such as ultracapacitor.
Brief description of the drawings
Fig. 1 is the structural representation of the super capacitor composite electrode prepared of the present invention.
Fig. 2 is the SEM picture of manganese dioxide/nano-porous gold skeleton super capacitor composite electrode micromorphology of preparing of the present invention.
Fig. 3 is that manganese dioxide/nano porous metal skeleton super capacitor composite electrode of preparing of the present invention is than the graph of a relation of electric capacity and measuring current density.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, a kind of preparation method of super capacitor composite electrode, comprises the steps:
1) be that 100nm electrum film floats with red fuming nitric acid (RFNA) corrosion 12 hours by thickness.
2) alloy film after above-mentioned corrosion is pulled out, be attached in PETG (PET) flexible substrates as Composite Set electrode.
3) the Composite Set electrode thin slice of above-mentioned processing being placed in to 0.2mol/L manganese acetate solution adopts galvanostatic method 0.1mA 1110s at 1 × 1cm
2sedimentation manganese oxide in area.
4) flexible flake electrode step 3) processing being obtained is further cleaned and is processed, and has been both the manganese dioxide/nano-porous gold super capacitor composite electrode after modification.As shown in Figure 1, the microstructure of seeing under ESEM as shown in Figure 2 for electrode structure.
Manganese dioxide/nano-porous gold super capacitor composite electrode after treatment is carried out to capacitive property test, and testing electrolyte used is 0.5mol/L metabisulfite solution, and measuring technology is chronoptentiometry, and electric current is 5A/g, and voltage window is 0 ~ 0.8V.The capacitive property result of electrode material test as shown in Figure 3.
Claims (6)
1. a preparation method for super capacitor composite electrode, is characterized in that, comprises the steps:
1) prepare nanoporous skeleton thin layer;
2) above-mentioned nano porous metal skeleton thin layer is spread in substrate as Composite Set electrode;
3) the burning active substances of certain mass will be deposited on above-mentioned Composite Set electrode thin slice.
2. the preparation method of super capacitor composite electrode according to claim 1, is characterized in that, the nanoporous skeleton in described step 1) adopts porous metal material.
3. the preparation method of super capacitor composite electrode according to claim 1, is characterized in that, described step 2) in substrate comprise high molecular polymer flexible material or rigid material.
4. the preparation method of super capacitor composite electrode according to claim 1, is characterized in that, described step 2) in prepare Composite Set electrode method be resistant alloy method or template.
5. the preparation method of super capacitor composite electrode according to claim 1, is characterized in that, the burning active substances in described step 3) comprises ultracapacitor metal oxide electrode material.
6. the preparation method of super capacitor composite electrode according to claim 1, is characterized in that, the deposition process in described step 3) comprises physical deposition method and chemical deposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162671.8A CN103956274A (en) | 2014-04-22 | 2014-04-22 | Super capacitor combined electrode preparing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162671.8A CN103956274A (en) | 2014-04-22 | 2014-04-22 | Super capacitor combined electrode preparing method |
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| CN103956274A true CN103956274A (en) | 2014-07-30 |
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| CN201410162671.8A Pending CN103956274A (en) | 2014-04-22 | 2014-04-22 | Super capacitor combined electrode preparing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006381A (en) * | 2015-07-07 | 2015-10-28 | 上海理工大学 | Honeycomb nano-double-layer structure super capacitor electrode material and preparation method |
| CN106449165A (en) * | 2016-08-30 | 2017-02-22 | 上海大学 | Method for preparing miniature supercapacitor by self-growing method |
| CN106910637A (en) * | 2017-02-28 | 2017-06-30 | 广东工业大学 | A kind of combination electrode material and preparation method thereof and ultracapacitor |
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| JP2011174184A (en) * | 2011-04-08 | 2011-09-08 | Mitsui Mining & Smelting Co Ltd | Porous metal foil and method for producing the same |
| WO2012093880A2 (en) * | 2011-01-06 | 2012-07-12 | 성균관대학교산학협력단 | Nano-porous electrode for super capacitor and manufacturing method thereof |
| CN202796464U (en) * | 2012-04-17 | 2013-03-13 | 符建 | High-dielectric-material porous structure capacitor |
| CN103337374A (en) * | 2013-07-03 | 2013-10-02 | 河北工业大学 | Electrode plate for super capacitor and preparation method of electrode plate |
| CN103346027A (en) * | 2013-07-08 | 2013-10-09 | 山东大学 | Supercapacitor material manufacturing technology based on nano-porous titanium skeleton |
| CN103440999A (en) * | 2013-08-29 | 2013-12-11 | 南昌航空大学 | Method for preparing nano MnO2 composite electrode for high-conductivity super-capacitor |
-
2014
- 2014-04-22 CN CN201410162671.8A patent/CN103956274A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012093880A2 (en) * | 2011-01-06 | 2012-07-12 | 성균관대학교산학협력단 | Nano-porous electrode for super capacitor and manufacturing method thereof |
| JP2011174184A (en) * | 2011-04-08 | 2011-09-08 | Mitsui Mining & Smelting Co Ltd | Porous metal foil and method for producing the same |
| CN202796464U (en) * | 2012-04-17 | 2013-03-13 | 符建 | High-dielectric-material porous structure capacitor |
| CN103337374A (en) * | 2013-07-03 | 2013-10-02 | 河北工业大学 | Electrode plate for super capacitor and preparation method of electrode plate |
| CN103346027A (en) * | 2013-07-08 | 2013-10-09 | 山东大学 | Supercapacitor material manufacturing technology based on nano-porous titanium skeleton |
| CN103440999A (en) * | 2013-08-29 | 2013-12-11 | 南昌航空大学 | Method for preparing nano MnO2 composite electrode for high-conductivity super-capacitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006381A (en) * | 2015-07-07 | 2015-10-28 | 上海理工大学 | Honeycomb nano-double-layer structure super capacitor electrode material and preparation method |
| CN106449165A (en) * | 2016-08-30 | 2017-02-22 | 上海大学 | Method for preparing miniature supercapacitor by self-growing method |
| CN106910637A (en) * | 2017-02-28 | 2017-06-30 | 广东工业大学 | A kind of combination electrode material and preparation method thereof and ultracapacitor |
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Application publication date: 20140730 |