1. Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
2. Liaoning Engineering Technology Research Center of Supercapacitor, Bohai University, Jinzhou 121013, People’s Republic of China
3. Yinlong Energy Co., Ltd., No. 16 Jinhu Road, Sanzao Town, Jinwan District, Zhuhai 519000, People’s Republic of China