Issue 10, 2020

Air-stable means more: designing air-defendable lithium metals for safe and stable batteries

Abstract

Lithium (Li) metal has been considered as the ultimate anode choice for the next-generation high energy density rechargeable batteries. However, besides the critical issues in electrochemistry such as interfacial stability and dendrite growth, stringent operation conditions and safety concerns induced by the poor air/moisture stability of Li metal largely hinder its transformation from laboratory to industry. Because of the high reactivity, Li metal suffers from severe corrosion or even potential safety hazards when exposed to humid air. Therefore, recent progress in enhancing the stability of Li metal in ambient air is of great significance for real-world mass production and practical application of lithium metal batteries (LMBs). This review focuses on the development of air-stable and high-performance Li metals to facilitate cost-effective fabrication of safety-enhanced LMBs. Surface modification and architecture design of Li anodes are identified as two most important directions to achieve the goal. The strategies that simultaneously enhance air/water-resistance and electrochemical properties are summarized, and the perspectives and future directions targeting the commercialization of air-stable LMBs are discussed.

Graphical abstract: Air-stable means more: designing air-defendable lithium metals for safe and stable batteries

Article information

Article type
Minireview
Submitted
23 Чер 2020
Accepted
30 Лип 2020
First published
31 Лип 2020

Mater. Horiz., 2020,7, 2619-2634

Air-stable means more: designing air-defendable lithium metals for safe and stable batteries

J. Wu, L. Yuan, Z. Li, X. Xie and Y. Huang, Mater. Horiz., 2020, 7, 2619 DOI: 10.1039/D0MH01030H

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