CN102244275A - Metal electrode of redox flow battery and preparation method thereof - Google Patents
Metal electrode of redox flow battery and preparation method thereof Download PDFInfo
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- CN102244275A CN102244275A CN201110124288XA CN201110124288A CN102244275A CN 102244275 A CN102244275 A CN 102244275A CN 201110124288X A CN201110124288X A CN 201110124288XA CN 201110124288 A CN201110124288 A CN 201110124288A CN 102244275 A CN102244275 A CN 102244275A
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Abstract
The invention relates to a metal electrode of a redox flow battery and a preparation method thereof and belongs to the technical field of flow batteries. The metal electrode of the redox flow battery is characterized in that the substrate of the electrode is a metal titanium plate; the surface of the metal titanium plate is provided with a TiO2 nano tube array which is provided with a deposited metal platinum or is filled with one or more oxidizing materials of Ir, Ta, Mg, Co, Ag, Ru, Mn and Fe. The preparation method of the metal electrode of the redox flow battery is characterized in that the preparation process comprises: 1) forming the TiO2 nano tube array on the surface of the metal titanium plate; and 2) depositing metal platinum or filling one or the plurality of oxidizing materials into the TiO2 nano tube array. The metal electrode provided by the invention has the advantages of high mechanical intensity, high corrosion resistance, good electrochemical activity, long service life, safety, reliability and good metal electrode performance; and the method has the advantages of simple preparation process, convenience in operation, easiness in control and the like.
Description
Technical field
The invention belongs to the flow battery technical field, particularly relate to a kind of redox flow batteries metal electrode and preparation method thereof.
Background technology
Redox flow batteries is that a kind of energy that allows is stored in electro-chemical systems in the solution, positive and negative half-cell is separated by barrier film, the electrolyte of each half-cell is by different oxidation-reduction pair solution compositions, electrical potential difference between two oxidation-reduction pairs is impelled battery to finish and is discharged and recharged as the actuating force of redox reaction.
Redox flow batteries mainly contains at present: siderochrome flow battery, sodium polysulfide/bromine flow battery and all-vanadium flow battery.Electrode is the critical component in the flow battery, and its main effect provides the place of electrochemical reaction, therefore requires electrode corrosion-resistant, and is high temperature resistant, and the intensity height has excellent electrochemical reaction activity simultaneously.
Electrode material commonly used mainly is metal species electrode material and carbon element class electrode material.Carbon element class electrode material has decay resistance preferably, possesses higher electro-chemical activity by modification, but this class mechanical strength is lower, surperficial erosion resistibility a little less than, useful life is shorter.Metal electrode has higher mechanical strength, possesses excellent electro-chemical activity behind the carried noble metal, but because active material is relatively poor at metal surface adhesive force, and also be undesirable its useful life, and if use the noble metal cost also than higher.As the collector and the electrode skeleton of electrode, effectively improve mechanical strength of electrodes as the employing metal forming/net of report in patent 200510020779.4, but had technical problems such as corrosion resistance and electro-chemical activity be not ideal enough.
Summary of the invention
The present invention provides a kind of redox flow batteries metal electrode and preparation method thereof for solving the technical problem that exists in the known technology.
One of purpose of the present invention provide a kind of simple in structure, mechanical strength is high, corrosion resistance is strong, electro-chemical activity is good, the redox flow batteries metal electrode of long service life, characteristics such as safe and reliable.
The technical scheme that redox flow batteries metal electrode of the present invention is taked for the technical problem that exists in the solution known technology is:
A kind of redox flow batteries metal electrode is characterized in: the substrate of electrode is a metal titanium sheet, and there is TiO on the metal titanium sheet surface
2Nano-tube array has plated metal platinum or is filled with one or more oxides among Ir, Ta, Mg, Co, Ag, Ru, Mn, the Fe in the nano-tube array.
Redox flow batteries metal electrode of the present invention can also be taked following technical scheme:
Described redox flow batteries metal electrode is characterized in: TiO
2The nano-tube array aperture is 10-500nm.
Described redox flow batteries metal electrode is characterized in: TiO
2Nano-tube array length is 0.1-50 μ m.
Two of purpose of the present invention provides that a kind of to have technology simple, easy to prepare, control easily, low cost of manufacture, the preparation method of the redox flow batteries metal electrode of characteristics such as product mechanical strength height, electro-chemical activity are good.
The technical scheme that the preparation method taked of redox flow batteries metal electrode of the present invention is:
A kind of preparation method of redox flow batteries metal electrode is characterized in: preparation process comprises 1) metal titanium sheet surface formation TiO
2Nano-tube array; 2) at TiO
2Plated metal platinum or fill one or more oxides in the nano-tube array.
The preparation method of redox flow batteries metal electrode of the present invention can also take following technical scheme:
The preparation method of described redox flow batteries metal electrode is characterized in: the metal titanium sheet surface forms TiO by anode oxidation process
2Nano-tube array.
The preparation method of described redox flow batteries metal electrode is characterized in: TiO
2The method of plated metal platinum or fill oxide is sputtering method, plasma-deposited method or vapour deposition process in the nano-tube array.
Advantage and good effect that the present invention has are:
Redox flow batteries metal electrode and preparation method thereof is owing to adopted brand-new technology scheme of the present invention, and compared with prior art, the present invention adopts the metal titanium sheet surface to form TiO
2Nano-tube array has plated metal platinum or is filled with Ir, Ta, Mg, Co, Ag, Ru, Mn, Fe oxide technique in nano-tube array, make metal electrode have following tangible characteristics:
1. mechanical strength height: because the Titanium substrate has very high mechanical strength, the TiO of surperficial integrated formation
2Have strong bonding force between nano-tube array and the substrate, therefore prepared electrode has high intensity;
2. corrosion resistance is strong: TiO
2Nano-tube array can anti-strong acid corrosion.
3. electro-chemical activity: because the TiO of electrode surface
2Nano-tube array has high specific area, and the active material of load is even, therefore has high electro-chemical activity.
4. long service life: because the TiO on surface
2Nano-tube array intensity height, scour resistance is strong, therefore has long useful life.
Redox flow batteries metal electrode preparation method of the present invention, it is simple to have technology, easily manufactured, control easily, low cost of manufacture, advantage such as properties of product are good.
Description of drawings
Fig. 1 is a redox flow batteries metal electrode structure schematic diagram of the present invention.
Among the figure, 1-titanium sheet, 2-TiO
2Nano-tube array, the 3-active material.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, exemplify following examples now, and the structure accompanying drawing is described in detail as follows:
A kind of redox flow batteries metal electrode, the substrate of its electrode are metal titanium sheet 1, and there is TiO on metal titanium sheet 1 surface
2Nano-tube array 2, TiO
2The nano-tube array aperture is 200nm, TiO
2Nano-tube array thickness is 30 μ m.Active material 3 plated metal platinum are arranged in the nano-tube array 2.
A kind of redox flow batteries metal electrode, the substrate of its electrode are metal titanium sheet, and there is TiO on the metal titanium sheet surface
2Nano-tube array, TiO
2The nano-tube array aperture is 500nm, TiO
2Nano-tube array thickness is 50 μ m.Ir, the Co of filling and Mg hopcalite are arranged in the nano-tube array.
A kind of preparation method of redox flow batteries metal electrode comprises: 1) the metal titanium sheet surface forms TiO by anode oxidation process
2Nano-tube array; 2) adopt sputtering method at TiO
2Plated metal platinum in the nano-tube array.
Embodiment 4
A kind of preparation method of redox flow batteries metal electrode comprises: 1) the metal titanium sheet surface forms TiO by anode oxidation process
2Nano-tube array; 2) the using plasma sedimentation is at TiO
2Fill Ir and Ta hopcalite in the nano-tube array.
Claims (6)
1. redox flow batteries metal electrode, it is characterized in that: the substrate of electrode is a metal titanium sheet, and there is TiO on the metal titanium sheet surface
2Nano-tube array has plated metal platinum or is filled with one or more oxides among Ir, Ta, Mg, Co, Ag, Ru, Mn, the Fe in the nano-tube array.
2. according to the described redox flow batteries metal electrode of claim 1, it is characterized in that: TiO
2The nano-tube array aperture is 10-500nm.
3. according to claim 1 or 2 described redox flow batteries metal electrodes, it is characterized in that: TiO
2Nano-tube array length is 0.1-50 μ m.
4. the preparation method of a redox flow batteries metal electrode, it is characterized in that: preparation process comprises 1) the metal titanium sheet surface forms TiO
2Nano-tube array; 2) at TiO
2Plated metal platinum or fill one or more oxides in the nano-tube array.
5. according to the preparation method of the described redox flow batteries metal electrode of claim 4, it is characterized in that: the metal titanium sheet surface forms TiO by anode oxidation process
2Nano-tube array.
6. according to the preparation method of claim 4 or 5 described redox flow batteries metal electrodes, it is characterized in that: TiO
2The method of plated metal platinum or fill oxide is sputtering method, plasma-deposited method or vapour deposition process in the nano-tube array.
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| CN201110124288XA CN102244275A (en) | 2011-05-13 | 2011-05-13 | Metal electrode of redox flow battery and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247785A (en) * | 2013-05-23 | 2013-08-14 | 江苏欧力特能源科技有限公司 | Lead-acid storage battery electrode assembly and preparation method thereof |
| CN109537021A (en) * | 2018-11-26 | 2019-03-29 | 天津师范大学 | A kind of preparation method of the titanium oxide for sodium-ion battery cathode/tin oxide composite membrane |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113525A (en) * | 2007-02-09 | 2008-01-30 | 南京航空航天大学 | Pt-TiO2/Ti combination electrode and method for making same |
| CN101625930A (en) * | 2009-06-19 | 2010-01-13 | 东南大学 | Ordered nano-tube array structure electrode material, preparation method and stored energy application |
| CN102002746A (en) * | 2010-11-03 | 2011-04-06 | 厦门大学 | Method for preparing iron oxide nano granule modified titanium dioxide nano tube array |
-
2011
- 2011-05-13 CN CN201110124288XA patent/CN102244275A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113525A (en) * | 2007-02-09 | 2008-01-30 | 南京航空航天大学 | Pt-TiO2/Ti combination electrode and method for making same |
| CN101625930A (en) * | 2009-06-19 | 2010-01-13 | 东南大学 | Ordered nano-tube array structure electrode material, preparation method and stored energy application |
| CN102002746A (en) * | 2010-11-03 | 2011-04-06 | 厦门大学 | Method for preparing iron oxide nano granule modified titanium dioxide nano tube array |
Non-Patent Citations (1)
| Title |
|---|
| 赵萌 等: "TiO2/Ag2O纳米材料的制备及其对甲醛的气敏性能", 《物理化学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247785A (en) * | 2013-05-23 | 2013-08-14 | 江苏欧力特能源科技有限公司 | Lead-acid storage battery electrode assembly and preparation method thereof |
| CN103247785B (en) * | 2013-05-23 | 2018-01-16 | 江苏欧力特能源科技有限公司 | A kind of lead-acid battery electrode group and preparation method thereof |
| CN109537021A (en) * | 2018-11-26 | 2019-03-29 | 天津师范大学 | A kind of preparation method of the titanium oxide for sodium-ion battery cathode/tin oxide composite membrane |
| CN109537021B (en) * | 2018-11-26 | 2020-07-21 | 天津师范大学 | Preparation method of titanium oxide/tin oxide composite membrane for sodium ion battery cathode |
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Application publication date: 20111116 |