Lithium anode stable in air for low-cost fabrication of a dendrite-free lithium battery

Xiaowei Shen, Yutao Li, Tao Qian (), Jie Liu, Jinqiu Zhou, Chenglin Yan () and John B. Goodenough ()
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Xiaowei Shen: Soochow University
Yutao Li: The University of Texas at Austin
Tao Qian: Soochow University
Jie Liu: Soochow University
Jinqiu Zhou: Soochow University
Chenglin Yan: Soochow University
John B. Goodenough: The University of Texas at Austin

Nature Communications, 2019, vol. 10, issue 1, 1-9

Abstract: Abstract Lithium metal, the ideal anode material for rechargeable batteries, suffers from the inherent limitations of sensitivity to the humid atmosphere and dendrite growth. Herein, low-cost fabrication of a metallic-lithium anode that is stable in air and plated dendrite-free from an organic-liquid electrolyte solves four key problems that have plagued the development of large-scale Li-ion batteries for storage of electric power. Replacing the low-capacity carbon anode with a safe, dendrite-free lithium anode provides a fast charge while reducing the cost of fabrication of a lithium battery, and increasing the cycle life of a rechargeable cell by eliminating the liquid-electrolyte ethylene-carbonate additive used to form a solid-electrolyte interphase passivation layer on the anode that is unstable during cycling. This solution is accomplished by formation of a hydrophobic solid-electrolyte interphase on a metallic-lithium anode that allows for handling of the treated lithium anode membrane in a standard dry room during cell fabrication.

Date: 2019
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DOI: 10.1038/s41467-019-08767-0

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