Robust interface layers with redox shuttle reactions suppress the dendrite growth for stable solid-state Li metal batteries

作     者：Shuaibo Zeng Gowri Manohari Arumugam Wentao Li Xiahu Liu Xin Li Hai Zhong Fei Guo Yaohua Mai Shuaibo Zeng;Gowri Manohari Arumugam;Wentao Li;Xiahu Liu;Xin Li;Hai Zhong;Fei Guo;Yaohua Mai

作者机构：Institute of New Energy TechnologyCollege of Information Science and TechnologyJinan UniversityGuangzhou 510006GuangdongChina National Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450000HenanChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2020年第29卷第12期

页      面：222-229页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (NO. 21805113) the Fundamental Research Funds for the Central Universities (NO. 11618410 and NO. 11619103) the China Postdoctoral Science Foundation (NO. 2019M653271) 

主　　题：Redox shuttle reaction Robust interface layer Lithium dendrites Long-lasting effect Solid-state batteries 

摘      要：Designing a durable lithium metal anode for solid state batteries requires a controllable and uniform deposition of lithium, and the metal lithium layer should maintain a good interface contact with solid state electrolyte during cycles. In this work, we construct a robust functional interface layer on the modified LiB electrode which considerably improves the electrochemical stability of lithium metal electrode in solid state batteries. It is found that the functional interface layer consisting of polydioxolane, polyiodide ion and Li TFSI effectively restrains the growth of lithium dendrites through the redox shuttle reaction of I-/I3-and maintains a good contact between lithium anode and solid electrolyte during cycles. Benefit from these two advantages, the modified Li-B anode exhibits a remarkable cyclic performance in comparison with those of the bare Li-B anode.