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Lithium-Metal Batteries via Suppressing Li Dendrite Growth and Improving Coulombic Efficiency

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SMALL STRUCTURES
卷 3, 期 10, 页码 -

出版社

WILEY
DOI: 10.1002/sstr.202200114

关键词

batteries; Coulombic efficiency; Li dendrites; lithium metal anodes

资金

  1. Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy [DE-EE0007762]

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This article provides a brief summary of the research progress in lithium-metal batteries (LMBs) over the past decade and discusses the Li plating behaviors, mechanistic understanding, strategies to suppress dendrite growth, as well as methods and techniques to improve Coulombic efficiency (CE), especially the design of liquid electrolytes. Possible research directions for the future development of LMBs are also mentioned.
Lithium-metal batteries (LMB) are recognized as one of the most promising candidates for the next generation of batteries due to their high energy density. Extensive studies have been refocused on the field in the past decade to make the technology commercially viable. Despite exciting progress that has been made, the practical application of LMBs is still hampered by the uncontrollable Li plating morphology and inferior Coulombic efficiency (CE) during cycling. Herein, first, the relevant research that has been carried out in the past decade (2010-2021) is briefly summarized and then the Li plating behaviors, mechanistic understanding of these behaviors, and strategies to suppress Li dendrite growth are discussed. Finally, the methods and techniques to improve Coulombic efficiency (CE) is discussed, especially the design of liquid electrolytes, and possible research directions for the future development of LMBs.

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