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- Title
Fluorine-Doped Antiperovskite Electrolyte for All-Solid-State Lithium-Ion Batteries.
- Authors
Li, Yutao; Zhou, Weidong; Xin, Sen; Li, Shuai; Zhu, Jinlong; Lü, Xujie; Cui, Zhiming; Jia, Quanxi; Zhou, Jianshi; Zhao, Yusheng; Goodenough, John B.
- Abstract
A fluorine-doped antiperovskite Li-ion conductor Li2(OH)X (X=Cl, Br) is shown to be a promising candidate for a solid electrolyte in an all-solid-state Li-ion rechargeable battery. Substitution of F− for OH− transforms orthorhombic Li2OHCl to a room-temperature cubic phase, which shows electrochemical stability to 9 V versus Li+/Li and two orders of magnitude higher Li-ion conductivity than that of orthorhombic Li2OHCl. An all-solid-state Li/LiFePO4 with F-doped Li2OHCl as the solid electrolyte showed good cyclability and a high coulombic efficiency over 40 charge/discharge cycles.
- Subjects
FLUORINE; LITHIUM-ion batteries; HALOGENS; ELECTROLYTES; ELECTROCHEMICAL analysis
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 34, p10119
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201604554