期刊
NANO LETTERS
卷 20, 期 6, 页码 4384-4392出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.0c01156
关键词
halide solid electrolyte; humidity; all-solid-state; anion sublattice; lithium-ion conductor
类别
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- GLABAT Solid-State Battery Inc.
- Canada Research Chair Program (CRC)
- Canada Foundation for Innovation (CFI)
- Ontario Research Fund
- Canada Light Source at University of Saskatchewan (CLS)
- Canada MITACS fellowships
- University of Western Ontario
The high ionic conductivity, air/humidity tolerance, and related chemistry of Li3MX6 solid-state electrolytes (SSEs, M is a metal element, and X is a halogen) has recently gained significant interest. However, most of the halide SSEs suffer from irreversible chemical degradation when exposed to a humid atmosphere, which originates from hydrolysis. Herein, the function of the M atom in Li3MX6 was clarified by a series of Li3Y1-xInxCl6 (0 <= x < 1). When the ratio of In' was increased, a gradual structural conversion from the hexagonal-closed-packed (hcp) anion arrangement to cubic-closed-packed (ccp) anion arrangement has been traced. Compared to hcp anion sublattice, the Li3MX6 with ccp anion sublattice reveals faster Li+ migration. The tolerance of Li3Y1-xInxCl6 towards humidity is highly improved when the In3+ content is high enough due to the formation of hydrated intermediates. The correlations among composition, structure, Li+ migration, and humidity stability presented in this work provide insights for designing new halide-based SSEs.
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。
推荐
暂无数据