An aqueous copper battery enabled by Cu2+/Cu+ and Cu3+/Cu2+ redox conversion chemistry

Zeang Duan; Jiajin Zhao; Yadi Qi; Ruyue Li; Wenfeng Wang; Qiuming Peng; Shumin Han; Lu Zhang

doi:10.1039/d2cc03565k

An aqueous copper battery enabled by Cu²⁺/Cu⁺ and Cu³⁺/Cu²⁺ redox conversion chemistry

Chem Commun (Camb). 2022 Sep 8;58(72):10076-10079. doi: 10.1039/d2cc03565k.

Authors

Zeang Duan¹, Jiajin Zhao¹, Yadi Qi¹, Ruyue Li¹, Wenfeng Wang², Qiuming Peng², Shumin Han^{2

1}, Lu Zhang^{2

1}

Affiliations

¹ School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
² State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China. hanshm@ysu.edu.cn.

PMID: 35996979
DOI: 10.1039/d2cc03565k

Abstract

We propose an aqueous copper battery via Cu²⁺/Cu⁺ and Cu³⁺/Cu²⁺ redox conversion chemistry on an activated carbon (AC) electrode enabled by a 30 m ChCl + 1 m CuCl₂ electrolyte, where Cu³⁺/Cu²⁺ redox promotes the discharge capacity by ∼50 mA h g^-1 at ∼1.0 V vs. Ag/AgCl with stable cycling.