4.8 Article

Ionic Conductive and Highly-Stable Interface for Alkali Metal Anodes

期刊

SMALL
卷 18, 期 33, 页码 -

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202203045

关键词

alkali metal anodes; atomic layer deposition; interface engineering; next generation batteries

资金

  1. Natural Science and Engineering Research Council of Canada (NSERC)
  2. Canada Foundation for Innovation (CFI)
  3. University of Western Ontario (UWO)
  4. DOE Office of Science User Facility [DE-AC02-05CH11231]

向作者/读者索取更多资源

This article reports a modified atomic layer deposition (ALD) method for fabricating ionic conductive coatings to improve the electrochemical performance and interface stabilization of alkali metal anode materials. The study demonstrates that the optimized ionic conductive coatings can promote uniform electrodeposition and have the potential to be applied to other metal anodes.
Alkali metals are regarded as the most promising candidates for advanced anode for the next-generation batteries due to their high specific capacity, low electrochemical potential, and lightweight. However, critical problems of the alkali metal anodes, especially dendrite formation and interface stabilization, remain challenging to overcome. The solid electrolyte interphase (SEI) is a key factor affecting Li and Na deposition behavior and electrochemical performances. Herein, a facile and universal approach is successfully developed to fabricate ionic conductive interfaces for Li and Na metal anodes by modified atomic layer deposition (ALD). In this process, the Li metal (or Na metal) plays the role of Li (or Na) source without any additional Li (or Na) precursor during ALD. Moreover, the key questions about the influence of ALD deposition temperature on the compositions and structure of the coatings are addressed. The optimized ionic conductive coatings have significantly improved the electrochemical performances. In addition, the electrochemical phase-field model is performed to prove that the ionic conductive coating is very effective in promoting uniform electrodeposition. This approach is universal and can be potentially applied to other different metal anodes. At the same time, it can be extended to other types of coatings or other deposition techniques.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据