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Fe/Cr液流电池用PAN基石墨毡电极改性研究

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Indexed by:期刊论文

Date of Publication:2015-07-20

Journal:电源技术

Included Journals:PKU、ISTIC、CSCD

Volume:39

Issue:7

Page Number:1442-1444,1448

ISSN No.:1002-087X

Key Words:Fe/Cr液流电池;石墨毡;空气中氧化

Abstract:采用SEM、FTIR检测手段研究石墨毡于550℃在空气中氧化后纤维表面形貌以及官能团含量的变化.结果表明:550℃氧化处理5h的石墨毡,比表面积显著增大,表面的-COOH和-OH官能团数目增多.处理后的石墨毡组装成电池后,于60 mA/cm2充放电电流密度下进行充放电测试,电池的性能明显提高,平均电流效率达到94.60%,平均电压效率达到85.36%,平均能量效率达到80.75%,多次充放电测试表明,循环性能稳定;Ⅰ-Ⅴ测试表明,电池的充放电内阻明显降低.

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