Constructing an In Situ Polymer Electrolyte and a Na-Rich Artificial SEI Layer toward Practical Solid-State Na Metal Batteries

• DOI: 10.1021/acsami.2c12518
• Publication Date: 2022-09-28T19:18:01Z
• Authors: Yi Shuai; Jin Lou; Xianglin Pei; Changqing Su; Xiaosheng Ye; Limin Zhang; Yu Wang; Zhixin Xu; Pingping Gao; Shijie He; Zhilong Wang; Kanghua Chen
• Keywords: Stripping (fiber); Plating (geology); Electrochemical window; Electrochemical potential

Sodium is one of the most promising anode candidates for beyond-lithium-ion batteries. The development Na metal batteries with a high energy density, safety, and low cost desirable to meet requirements both portable stationary electrical storage. However, several problems caused by unstable unsafe liquid electrolyte severely hinder their practical applications. Herein, we report facile but effective methodology construct an in situ polymer Na-rich artificial solid-electrolyte interface (SEI) layer concurrently. obtained integrated display long cycling life admirable dynamic performance total inhibition dendrites, excellent contact cathode/polymer electrolyte, reduction side reactions during cycling. modified electrode stable dendrite-free repeated plating/stripping processes span above 1000 h. Moreover, this method compatible different cathodes that demonstrate outstanding electrochemical full cells. We believe approach provides solution solid-state