| 杨永青,徐献芝*,李清宇,刘晓毅.锌空气电池电极表面渗液现象的研究[J].实验力学,2012,27(5):637~642 |
| 锌空气电池电极表面渗液现象的研究 |
| On the Zinc Air Battery Electrode Surface Seepage Phenomenon |
| 投稿时间：2012-01-05 修订日期：2012-04-09 |
| DOI： |
| 中文关键词: surface tension seepage surface property hydrophobic property air electrode poly tetra fluoro ethylene (PTFE) film |
| 英文关键词: |
| 基金项目:国家自然科学基金(项目编号:10872193) |
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| 中文摘要: |
| Seepage is one of the main problems of zinc air battery. Factors that may affect the battery seepage were investigated through following experiments: PTFE (poly tetra fluoro ethylene) film surface properties experiment, battery cooling discharge experiment, air electrode voltage experiment and Antilliean electro-osmosis test. These involved factors include PTFE film, temperature, voltage, charge quantity and electrolyte solution. Experimental results show that after soak in KOH solution for a period of time, the contact angle of PTFE film becomes significantly small and its hydrophobic property deteriorates;temperature and voltage indeed have influence on seepage phenomenon; KOH solution seepage is the most serious in all kinds of electrolyte solution; the total charge in discharge process basically has no influence on seepage. Based on analysis of experimental results, it is concluded that the battery seepage is caused by the change of electrolyte solution surface tension induced by above factors, which results in gas-liquid interface movement. Above results are valuable for improving the performance of zinc air battery. |
| 英文摘要: |
| 表面张力; 渗液; 表面特性; 疏水性; 空气电极; 聚四氟乙烯膜(PTFE) |
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