Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7962690 | Energy Storage Materials | 2018 | 20 Pages |
Abstract
Polypyrrole (PPy) is a highly conductive polymer and promising pseudocapacitive material for energy storage. However, the poor stability of PPy based supercapacitors (SCs) limits their applications. Here we demonstrate a facile dipping process to uniformly grow 4-butylbenzenesulfonate modified PPy film on a filter paper substrate. The flexible and free-standing PPy paper electrode demonstrated excellent cycling stability with capacitance retention of ~84.8% after 200,000 cycles. We believe that the 4-butylbenzenesulfonate modification could increase the order degree of PPy via layer-by-layer stacked α-α coupled chains, leading to a robust structure under the charging and discharging progress. This work pushes the cycling limitation of PPy based SCs and realizes their potentials for practical applications.
Related Topics
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Authors
Liang Huang, Xu Yao, Longyan Yuan, Bin Yao, Xiang Gao, Jun Wan, Panpan Zhou, Min Xu, Jiabin Wu, Huimin Yu, Zhimi Hu, Tianqi Li, Yat Li, Jun Zhou,