CN1307733C - Preparation method of electrode for all-vanadium ion flow battery - Google Patents
Preparation method of electrode for all-vanadium ion flow battery Download PDFInfo
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- CN1307733C CN1307733C CNB031455735A CN03145573A CN1307733C CN 1307733 C CN1307733 C CN 1307733C CN B031455735 A CNB031455735 A CN B031455735A CN 03145573 A CN03145573 A CN 03145573A CN 1307733 C CN1307733 C CN 1307733C
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- thermoplastic polymer
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- 238000002360 preparation method Methods 0.000 title claims description 12
- 229910001456 vanadium ion Inorganic materials 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 26
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 26
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 20
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 20
- 239000011231 conductive filler Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 15
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000003960 organic solvent Substances 0.000 claims abstract description 4
- 235000011837 pasties Nutrition 0.000 claims abstract description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003610 charcoal Substances 0.000 claims description 16
- 229910002804 graphite Inorganic materials 0.000 claims description 15
- 239000010439 graphite Substances 0.000 claims description 15
- 238000005303 weighing Methods 0.000 claims description 12
- 239000002608 ionic liquid Substances 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000006230 acetylene black Substances 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 6
- 230000010287 polarization Effects 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 3
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 claims description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229960001760 dimethyl sulfoxide Drugs 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229920001083 polybutene Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 229920003023 plastic Polymers 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000010309 melting process Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to the field of battery electrode manufacturing, and is characterized in that synthetic rubber (1) or thermoplastic polymer (2) or a mixture (3) of the synthetic rubber and the thermoplastic polymer with the mass ratio of 1: 1-9: 1 is dissolved in an organic solvent with the solid-to-liquid ratio of 1: 1-1: 15; then adding conductive filler into the solution in proportion, and stirring and mixing for 0.2-5 hours at normal temperature to obtain a pasty conductive material; and coating the conductive material on a carbon felt, and pressing and forming the carbon felt and a metal current collector at room temperature to obtain the electrode for the vanadium battery. The invention overcomes the defects of decomposition of high molecular materials caused by difficult temperature control in the high-temperature melting process or performance reduction of conductive plastics caused by overhigh melt viscosity and the like, has simple process, convenient operation and low energy consumption, and is suitable for industrial production.
Description
Technical field:
The manufacturing field of battery electrode of the present invention is in particular for preparing the method for all-vanadium ionic liquid flow battery electrode.
Background technology:
Because vanadium cell is in the highly acid medium, so its electrode material requires that chemical stability is good, mechanical strength is high, electro-chemical activity is good and low-cost.And vanadium cell mainly is two classes with electrode material at present: metal species electrode and complex class electrode.
The cyclic voltammetric of metal species vanadium cell electrode and discharge and recharge experimental studies results and show, this class electrode easily forms passivating film at V (IV)/V (V) electricity to the interval inner surface of the electromotive force of generating electrodes reaction, proceeding of impeded electrode reaction, the performance electrochemical reversibility is poor, cost an arm and a leg, limited the application of this class electrode.
The preparation technology of complex class electrode adopts synthetic rubber (1) or thermoplastic polymer (2) or both mixtures (3), at first be heated to more than the melting temperature, after becoming a kind of state of fusion, add conductive filler (plain class material of charcoal or metal-powder) again, fully stir, make conductive plastics; Then, collector body (wire netting, paper tinsel or plate), conductive plastics, charcoal felt class material is hot-forming, be prepared into the vanadium cell electrode.The whole process of this method is all carried out under the high temperature more than 200 ℃, operation inconvenience, and the energy consumption height is to the equipment requirements harshness; When especially adopting high-temperature fusion synthetic rubber or thermoplastic polymer or their its mixture to prepare conductive plastics, their melt temperature is wayward; Temperature is too high slightly, and material then is decomposed; Temperature is on the low side slightly, and viscosity is then increased, and it is inhomogeneous to cause conductive filler to mix, and influences the electric conductivity of prepared material.
The purpose of invention:
The objective of the invention is: overcome the shortcoming in high temperature hot pressing condition bottom electrode preparation technology, a kind of method that can prepare all-vanadium ionic liquid flow battery with electrode at normal temperatures is provided, its technology is simple, easy to operate, energy consumption is low, be suitable for suitability for industrialized production; The vanadium cell electrode cost of producing with the present invention is low, satisfies the performance requirement of vanadium cell.
Technical measures of the present invention are: at first with synthetic rubber (1), or thermoplastic polymer (2), or be 1: 1~9: 1 synthetic rubber and the mixture of thermoplastic polymer (3) by solid-to-liquid ratio by mass ratio be to be dissolved in organic solvent in 1: 1~1: 15; In solution, add conductive filler then in proportion, mixed at normal temperatures 0.2~5 hour, get the pasty state electric conducting material; Again this electric conducting material is coated on the charcoal felt, promptly makes the vanadium cell electrode with metal current collector compression moulding at room temperature.
Synthetic rubber (1) is hydrogen rubber, ethylene-propylene-divinyl polymer, ethylene-propylene copolymer, styrene-butadiene, ethylene-propylene rubber, poly-butyl rubber, s-B-S.
Organic solvent is cyclohexane or acetone, ethyl acetate, chloroform, toluene, ether, benzene or methyl-sulfoxide.
Conductive filler is graphite powder, carbon black, acetylene black, metal powder, two or more the mixture in them.
Thermoplastic polymer (2) is polyethylene, polypropylene, polybutene, polystyrene.
Advantage of the present invention and good effect are mainly reflected in following several aspect:
1. prepare the vanadium cell electrode with the present invention, entire making process is all finished under normal temperature (room temperature), but energy savings not only, and easy to operate, need not to use any special installation;
2. the present invention is in the preparation process of conductive plastics, replace high-temperature fusion with solvent, because the quantity of solvent of being added can be regulated according to the size of required solution viscosity, it is wayward and macromolecular material that cause decomposes to have overcome temperature in the high-temperature fusion process, or melt viscosity is crossed the shortcoming that conductive plastics performance that high reason causes reduces, therefore, the qualification rate height of electrode product.
Description of drawings:
Fig. 1 is a process flow diagram of the present invention.
Embodiment:
Embodiment 1
Take by weighing the synthetic rubber s-B-S, add solvent toluene than the ratio that is 1: 3, mixed 0.2~1.0 hour in solid (quality) liquid (volume);
In the synthetic rubber mass ratio is that to take by weighing mass ratio be 4: 1 the conductive filler graphite powder and the mixture of acetylene black for 1: 0.3 ratio; It is added in the synthetic rubber solution, stirred 0.2~5.0 hour, conductive filler and synthetic rubber are mixed, get pastel;
This pastel is coated on the one side of charcoal felt or graphite felt, and is stained with metal current collector in the one side that scribbles pastel and then makes termination electrode; And apply one deck pastel again and be stained with the charcoal felt or graphite felt then makes the dual polarization electrode at the another side of metal current collector.
Embodiment 2
Take by weighing a certain amount of thermoplastic polymer polyethylene, than the ratio and the oxolane that are 1: 6, mixed 0.2~1.0 hour in solid (quality) liquid (volume);
In the thermoplastic polymer mass ratio is that 1: 0.5 ratio takes by weighing the mixture that mass ratio is 6: 1 conductive filler graphite powders and carbon black;
With stirring 0.2~5.0 hour in its adding thermoplastic-polymer solution, conductive filler and thermoplastic polymer are mixed, get pastel;
This pastel is coated on the one side of charcoal felt or graphite felt, and is stained with metal current collector in the one side that scribbles pastel and then makes termination electrode; And apply one deck pastel and clay charcoal felt or graphite felt again at the another side of metal current collector and then make the dual polarization electrode.
Embodiment 3
Take by weighing 1: 0.3 mixture of synthetic rubber and thermoplastic polymer, add toluene or other solvents than the ratio that is 1: 5.0, mixed 0.2~1.0 hour in solid (quality) liquid (volume);
In the synthetic rubber mass ratio is that 1: 0.2 ratio takes by weighing the mixture that mass ratio is 5: 1 conductive filler graphite powders and acetylene black;
With stirring 0.2~5.0 hour in its adding synthetic rubber solution, conductive filler and synthetic rubber are mixed, get pastel;
This pastel is coated on the one side of charcoal felt or graphite felt, and is stained with metal current collector in the one side that scribbles pastel and then makes termination electrode; And apply one deck pastel again and be stained with the charcoal felt or graphite felt then makes the dual polarization electrode at the another side of metal current collector.
Claims (7)
1. all-vanadium ionic liquid flow battery is with the preparation method of electrode, it is characterized in that: at first with synthetic rubber (1), or thermoplastic polymer (2), or be 1: 1~9: 1 synthetic rubber and the mixture of thermoplastic polymer (3) by solid-to-liquid ratio by mass ratio be to be dissolved in organic solvent cyclohexane, acetone, ethyl acetate, chloroform, toluene, ether, benzene or methyl-sulfoxide in 1: 1~1: 15; In solution, add conductive filler then in proportion, mixed at normal temperatures 0.2~5 hour, get the pasty state electric conducting material; Again this electric conducting material is coated on the charcoal felt, promptly makes the vanadium cell electrode with metal current collector compression moulding at room temperature.
2. the all-vanadium ionic liquid flow battery according to claim 1 preparation method of electrode is characterized in that: synthetic rubber (1) is hydrogen rubber, ethylene-propylene-divinyl polymer, ethylene-propylene copolymer, styrene-butadiene, ethylene-propylene rubber, poly-butyl rubber or s-B-S.
3. all-vanadium ionic liquid flow battery according to claim 1 is characterized in that with the preparation method of electrode: conductive filler is two or more the mixture in graphite powder, carbon black, acetylene black, the metal powder.
4. the all-vanadium ionic liquid flow battery according to claim 1 preparation method of electrode is characterized in that: thermoplastic polymer (2) is polyethylene, polypropylene, polybutene or polystyrene.
5. all-vanadium ionic liquid flow battery according to claim 1 is characterized in that with the preparation method of electrode: taking by weighing the synthetic rubber s-B-S, is that 1: 3 ratio adds solvent toluene in solid-to-liquid ratio, mixes 0.2~1.0 hour;
In the synthetic rubber mass ratio is that to take by weighing mass ratio be 4: 1 the conductive filler graphite powder and the mixture of acetylene black for 1: 0.3 ratio; It is added in the synthetic rubber solution, stirred 0.2~5.0 hour, conductive filler and synthetic rubber are mixed, get pastel;
This pastel is coated on the one side of charcoal felt or graphite felt, and is stained with metal current collector in the one side that scribbles pastel and then makes termination electrode; And apply one deck pastel again and be stained with the charcoal felt or graphite felt makes the dual polarization electrode at the another side of metal current collector.
6. all-vanadium ionic liquid flow battery according to claim 1 is characterized in that with the preparation method of electrode: taking by weighing a certain amount of thermoplastic polymer polyethylene, is 1: 6 ratio and oxolane in solid-to-liquid ratio, mixes 0.2~1.0 hour;
In the thermoplastic polymer mass ratio is that 1: 0.5 ratio takes by weighing the mixture that mass ratio is 6: 1 conductive filler graphite powders and carbon black; With stirring 0.2~5.0 hour in its adding thermoplastic-polymer solution, conductive filler and thermoplastic polymer are mixed, get pastel;
This pastel is coated on the one side of charcoal felt or graphite felt, and is stained with metal current collector in the one side that scribbles pastel and then makes termination electrode; And apply one deck pastel again and be stained with the charcoal felt or graphite felt makes the dual polarization electrode at the another side of metal current collector.
7. the all-vanadium ionic liquid flow battery according to claim 1 preparation method of electrode, it is characterized in that: take by weighing 1: 0.3 mixture of synthetic rubber and thermoplastic polymer, in solid-to-liquid ratio is that 1: 5.0 ratio adds toluene, mixes 0.2~1.0 hour;
In the synthetic rubber mass ratio is that 1: 0.2 ratio takes by weighing 5: 1 the conductive filler graphite powder of mass ratio and the mixture of acetylene black; It is added in the synthetic rubber solution, stirred 0.2~5.0 hour, conductive filler and synthetic rubber are mixed, get pastel;
This pastel is coated on the one side of charcoal felt or graphite felt, and is stained with metal current collector in the one side that scribbles pastel and then makes termination electrode; And apply one deck pastel again and be stained with the charcoal felt or graphite felt makes the dual polarization electrode at the another side of metal current collector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB031455735A CN1307733C (en) | 2003-07-04 | 2003-07-04 | Preparation method of electrode for all-vanadium ion flow battery |
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CNB031455735A CN1307733C (en) | 2003-07-04 | 2003-07-04 | Preparation method of electrode for all-vanadium ion flow battery |
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CN1567618A CN1567618A (en) | 2005-01-19 |
CN1307733C true CN1307733C (en) | 2007-03-28 |
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Cited By (1)
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CN101752565B (en) * | 2008-12-11 | 2012-08-22 | 比亚迪股份有限公司 | Battery electrode, preparation method thereof and vanadium redox flow battery comprising same |
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CN100407477C (en) * | 2005-04-22 | 2008-07-30 | 中南大学 | Cathode for whole vanadium oxide reduction flow battery and preparation method thereof |
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CN100550486C (en) * | 2007-08-29 | 2009-10-14 | 中国工程物理研究院电子工程研究所 | Preparation method of composite conductive plastic current collector of flow battery |
CN100585917C (en) * | 2007-09-26 | 2010-01-27 | 中国科学院金属研究所 | Preparatin method of high conductivity double polar plates for vanadium battery |
CN101567452B (en) * | 2009-04-20 | 2011-05-11 | 清华大学 | Preparation method of liquid flow battery composite material bipolar plate |
CN102751509A (en) * | 2011-04-18 | 2012-10-24 | 云廷志 | Method for producing termination electrode for flow battery |
CN102324529B (en) * | 2011-08-29 | 2014-12-03 | 国网电力科学研究院武汉南瑞有限责任公司 | Preparation method of conductive plastic bipolar plate of vanadium battery |
CN102340009B (en) * | 2011-09-27 | 2013-09-04 | 陶淞祥 | Nonmetal electrode material of vanadium redox battery and preparation method thereof |
CN102361091B (en) * | 2011-10-25 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated electrode collector plate, manufacturing method thereof and flow battery comprising same |
CN102569825B (en) * | 2012-02-18 | 2015-01-21 | 沈阳飞机工业(集团)有限公司 | Conductive plastic composite electrode and manufacture method therefor |
CN102623722B (en) * | 2012-04-13 | 2014-06-18 | 北京百能汇通科技股份有限公司 | Termination electrode device and preparation method for flow batteries |
CN103490075B (en) * | 2013-10-15 | 2016-03-23 | 攀钢集团攀枝花钢铁研究院有限公司 | Vanadium redox battery and end, bipolar electrode and preparation method |
CN113892203A (en) * | 2019-05-16 | 2022-01-04 | 对数9物质科学私人有限公司 | Carbon felt-based electrode assembly and method of manufacturing the same |
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CN1086929A (en) * | 1992-09-04 | 1994-05-18 | 单一检索有限公司 | Flexible, conducting plastic electrode and manufacture method thereof |
US5665212A (en) * | 1992-09-04 | 1997-09-09 | Unisearch Limited Acn 000 263 025 | Flexible, conducting plastic electrode and process for its preparation |
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Patent Citations (3)
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CN1086929A (en) * | 1992-09-04 | 1994-05-18 | 单一检索有限公司 | Flexible, conducting plastic electrode and manufacture method thereof |
JPH08501896A (en) * | 1992-09-04 | 1996-02-27 | ユニサーチ リミテッド | Flexible conductive plastic electrode and method for manufacturing the same |
US5665212A (en) * | 1992-09-04 | 1997-09-09 | Unisearch Limited Acn 000 263 025 | Flexible, conducting plastic electrode and process for its preparation |
Cited By (1)
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CN101752565B (en) * | 2008-12-11 | 2012-08-22 | 比亚迪股份有限公司 | Battery electrode, preparation method thereof and vanadium redox flow battery comprising same |
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