Practicable Zn metal batteries enabled by ultrastable ferromagnetic interface

Chuang Sun; Wenduo Zhang; Daping Qiu; Minman Tong; Zhangsen Chen; Shuhui Sun; Chao Lai; Yanglong Hou

doi:10.1016/j.scib.2023.08.063

Practicable Zn metal batteries enabled by ultrastable ferromagnetic interface

Sci Bull (Beijing). 2023 Nov 30;68(22):2750-2759. doi: 10.1016/j.scib.2023.08.063. Epub 2023 Sep 18.

Authors

Chuang Sun¹, Wenduo Zhang², Daping Qiu³, Minman Tong², Zhangsen Chen⁴, Shuhui Sun⁴, Chao Lai⁵, Yanglong Hou⁶

Affiliations

¹ School of Materials Science and Engineering, Beijing Key Laboratory for Magnetoelectric Materials and Devices, Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China; School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 201116, China.
² School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 201116, China.
³ School of Materials Science and Engineering, Beijing Key Laboratory for Magnetoelectric Materials and Devices, Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China.
⁴ Institut National de la Recherche Scientifique, Center Énergie Matériaux Télécommunications, Varennes QC J3X 1P7, Canada.
⁵ School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 201116, China. Electronic address: laichao@jsnu.edu.cn.
⁶ School of Materials Science and Engineering, Beijing Key Laboratory for Magnetoelectric Materials and Devices, Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China. Electronic address: hou@pku.edu.cn.

PMID: 37770327
DOI: 10.1016/j.scib.2023.08.063

Abstract

Rechargeable zinc (Zn) metal batteries (RZMBs) are demonstrated as sustainable and low-cost alternative in the energy storage industry of the future. However, the elusive Zn deposition behavior and water-originated parasitic reactions bring significant challenges to the fabrication and commercialization of Zn anodes, especially under high plating/stripping capacity. In this work, the ferromagnetic interface in conjunction with the magnetic field (MF) to effectively address these fabrication hurdles is proposed. The introduction of ferromagnetic layer with high chemical durability not only maintains the long-term regulating deposition steadily by magnetic field, but also plays a significant role in preventing side reactions, hence reducing gas production. These merits allow Zn-anode to achieve over 350 h steady Zn-deposition with a depth of discharge (DOD_Zn) up to 82% and translates well to ZnFe-MF||V₂O₅ full cells, supporting stable cycling at high mass loading of 13.1 mg/cm², which makes RZMBs configurations promising for commercial applications.

Keywords: Dendrite-free; Ferromagnetic interface; Magnetic field; Side reactions; Zn metal battery.