A stable polyaniline-benzoquinone-hydroquinone supercapacitor.

Vonlanthen, David; Lazarev, Pavel; See, Kimberly A; Wudl, Fred; Heeger, Alan J · Adv Mater · 2014

basic_science · Level V

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Abstract

A Polyaniline-Supercapacitor with quinone electrolytes remains stable over 50 000 galvanostatic charge-discharge cycles. The quinones provide superior stability by preventing the conversion of porous polyaniline to a highly reactive state. Our work shows that highly stable polymer-supercapacitors can be engineered by combining electrochemically active polymers and redox-active electrolytes with concerted electrochemical properties.