We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Lithium Chlorides and Bromides as Promising Solid‐State Chemistries for Fast Ion Conductors with Good Electrochemical Stability.
- Authors
Wang, Shuo; Bai, Qiang; Nolan, Adelaide M.; Liu, Yunsheng; Gong, Sheng; Sun, Qiang; Mo, Yifei
- Abstract
Enabling all‐solid‐state Li‐ion batteries requires solid electrolytes with high Li ionic conductivity and good electrochemical stability. Following recent experimental reports of Li3YCl6 and Li3YBr6 as promising new solid electrolytes, we used first principles computation to investigate the Li‐ion diffusion, electrochemical stability, and interface stability of chloride and bromide materials and elucidated the origin of their high ionic conductivities and good electrochemical stabilities. Chloride and bromide chemistries intrinsically exhibit low migration energy barriers, wide electrochemical windows, and are not constrained to previous design principles for sulfide and oxide Li‐ion conductors, allowing for much greater freedom in structure, chemistry, composition, and Li sublattice for developing fast Li‐ion conductors. Our study highlights chloride and bromide chemistries as a promising new research direction for solid electrolytes with high ionic conductivity and good stability.
- Subjects
LITHIUM chloride; BROMIDES; SOLID state chemistry; ELECTROCHEMICAL analysis; CHEMICAL stability
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 24, p8123
- ISSN
0044-8249
- Publication type
Academic Journal
- DOI
10.1002/ange.201901938