Li metal anode protection in safe rechargeable batteries

17^th International Conference on Emerging Materials and Nanotechnolgy

March 07-08, 2019 | Berlin, Germany

Qiang Zhang

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Tsinghua University, China

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

Li metal is considered as the “Holy Grail” of energy storage systems. The bright prospects give rise to worldwide interests in the metallic Li for the next generation energy storage systems, including highly considered rechargeable metallic Li batteries such as Li-O₂ and Li-sulfur (Liâ??S) batteries. However, the formation of Li dendrites induced by inhomogeneous distribution of current density on the Li metal anode and the concentration gradient of Li ions at the electrolyte/electrode interface is a crucial issue that hinders the practical demonstration of high-energy-density metallic Li batteries. In this talk, we review the lithium metal anode protection in a polysulfide-rich environment. Firstly, the importance and dilemma of Li metal anode issues in lithiumâ??sulfur batteries are underscored, aiming to arouse the attentions to Li metal anode protection. Specific attentions are paid to the surface chemistry of Li metal anode in a polysulfide-rich lithiumâ??sulfur battery. Next, the proposed strategies to stabilize solid electrolyte interface and protect Li metal anode are included. Finally, a general conclusion and a perspective on the current limitations, as well as recommended future research directions of Li metal anode in rechargeable batteries are presented.

Biography :

E-mail: zhang-qiang@mails.tsinghua.edu.cn