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New Understanding toward Lithium Morphologic Evolution in Lithium Metal Batteries.

Authors :
Wang, Chun
Wu, Xuyang
Yuan, Wei
Zhang, Xiaoqing
Jiang, Simin
Zhao, Bote
Chen, Yu
Zhang, Guanhua
Zeng, Yubin
Liu, Qing
Gu, Furui
Tang, Yong
Xie, Yingxi
Source :
Advanced Functional Materials. Nov2024, Vol. 34 Issue 48, p1-9. 9p.
Publication Year :
2024

Abstract

The generation of dendrites is a common issue of lithium metal battery, while the failure mechanism is still uncovered especially at low current densities/capacities. To better understand the mechanical factors caused by lithium morphologic evolution in the whole dynamic process of a cycle, this study proposes a failure mechanism of the lithium metal anode under a safe condition of rather low current density/capacity. The anode and the electrolyte fail to maintain effective contact throughout the dynamic cycling process due to the accumulation and extrusion of lithium deposits. To guarantee effective contact, a facile and low‐cost mechanical stamping method for lithium metal anode modification is accordingly presented. The curved lithium electrode can stably cycle for more than 300 cycles at 3 mA cm−2. This study is believed to provide a more in‐depth understanding toward the evolvement of lithium morphology to boost practical use of the lithium metal anodes. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
1616301X
Volume :
34
Issue :
48
Database :
Academic Search Index
Journal :
Advanced Functional Materials
Publication Type :
Academic Journal
Accession number :
181089109
Full Text :
https://doi.org/10.1002/adfm.202408758