Inhibiting corrosion and side reactions of zinc metal anode by nano-CaSiO3coating towards high-performance aqueous zinc-ion batteries

Penghui Zhai; Xiaoliang Zhai; Zhihui Jia; Wanhong Zhang; Kunming Pan; Yong Liu

doi:10.1088/1361-6528/aca1cd

Inhibiting corrosion and side reactions of zinc metal anode by nano-CaSiO₃coating towards high-performance aqueous zinc-ion batteries

Nanotechnology. 2022 Dec 7;34(8). doi: 10.1088/1361-6528/aca1cd.

Authors

Penghui Zhai^{1

2}, Xiaoliang Zhai³, Zhihui Jia¹, Wanhong Zhang¹, Kunming Pan^{1

2}, Yong Liu^{1

2

4}

Affiliations

¹ School of Materials Science and Engineering, Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal new Materials and Advanced Processing Technology, Henan University of Science and Technology, Luoyang 471023, People's Republic of China.
² Science & Technology Innovation Center for Advanced Matetials of Intelligent Equipment, Longmen Laboratory, Luoyang 471023, People's Republic of China.
³ China Lithium Battery Technology Co., Ltd, Luoyang 471000, People's Republic of China.
⁴ Henan Key Laboratory of Non-Ferrous Materials Science & Processing Technology, Henan University of Science and Technology, Luoyang 471023, People's Republic of China.

PMID: 36356316
DOI: 10.1088/1361-6528/aca1cd

Abstract

The aqueous Zn-ion batteries (AZIBs) have been deemed as one of the most promising energy storage devices owing to their high safety, low cost, and environmental benignity. Nevertheless, the severe corrosion of zinc metal anode and side reactions between the anode and electrolyte greatly hinder the practical application of AZIBs. To address above-mentioned issues, herein, a nano-CaSiO₃layer was coated on the surface of Zn metal anode via the solution casting method. Results showed that this hydrophobic coating layer could effectively inhibit the direct contact of Zn metal anode with electrolyte, suppressing its corrosion and side reactions during Zn deposition/stripping. When applied in symmetrical cells, the nano-CaSiO₃coated Zn (CSO-Zn) electrode exhibited much longer cycle life than bare Zn electrode. Moreover, with this nano-CaSiO₃modified Zn anode, both vanadium-based and manganese-based full cells depicted excellent capacity retention. This nano-CaSiO₃coating layer provides a good choice for improving the stability of Zn metal anode for high-performance AZIBs.

Keywords: Zn metal anodes; aqueous zinc-ion battery; artificial protective layer; electrochemical performance; nano-CaSiO3 coating.