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沈晓帆, 王晓娜, 俞能晟, 杨薇, 周雨融, 石艳红, 王玉莲, 董立忠, 邸江涛, 李清文

A Polypyrrole-Coated MnO2/Carbon Nanotube Film Cathode for Rechargeable Aqueous Zn-Ion Batteries

Xiaofan Shen, Xiaona Wang, Nengsheng Yu, Wei Yang, Yurong Zhou, Yanhong Shi, Yulian Wang, Lizhong Dong, Jiangtao Di, Qingwen Li

图3 锌锰电池的电化学性能表征

Fig 3 Electrochemical performance of ZIB. (a) CV curves at various scan rates of 1-10 mV s-1; (b) logi vs logv plots at specific peak currents; (c) Contribution ratio of the capacitor-controlled and diffusion-controlled charge storage processes; (d) Charge and discharge curves at corresponding current density; (e) Rate performance within 1-1.9 V at varied current densities of 0.2-2 A•g-1; (f) Cycling performance and the corresponding coulombic efficiencies of batteries at 1 A•g-1.