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Self-doped polypyrrole with ionizable sodium sulfonate as a renewable cathode material for sodium ion batteries
Limin Zhu1, Yifei Shen, Mengying Sun
1College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China. hxyang@whu.edu.cn.
Abstract:
A Na-host cathode is developed by grafting the polypyrrole chains with ionizable sodium sulfonate. Due to the immobile p-doping of organic anions, the self-doped polymer can act as a Na-host for reversible Na insertion-extraction reaction, thus offering a low cost and renewable organic cathode for Na ion battery applications.

