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Guiding Uniform Li Plating/Stripping Through Lithium-Aluminum Alloying Medium for Long-Life Li Metal Batteries

Huan Ye, Zi-Jian Zheng, Hu-Rong Yao, Shun-Chang Liu, Tong-Tong Zuo, Xiong-Wei Wu, Ya-Xia Yin, Nian-Wu Li, Jiang-Jiang Gu, Fei-Fei Cao, Yu-Guo Guo

Angew Chem Int Ed Engl. 2019 Jan 21;58(4):1094-1099.

PMID: 30447094

Abstract:

The uncontrolled growth of Li dendrites upon cycling might result in low coulombic efficiency and severe safety hazards. Herein, a lithiophilic binary lithium-aluminum alloy layer, which was generated through an in situ electrochemical process, was utilized to guide the uniform metallic Li nucleation and growth, free from the formation of dendrites. Moreover, the formed LiAl alloy layer can function as a Li reservoir to compensate the irreversible Li loss, enabling long-term stability. The protected Li electrode shows superior cycling over 1700 h in a Li|Li symmetric cell.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP87871872 Lithium-aluminum alloy Lithium-aluminum alloy 87871-87-2 Price
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