期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 70, 期 -, 页码 168-175出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2020.08.035
关键词
Interfacial stability; Sulfides; Solid electrolytes; Chemical synthesis; All-solid-state sodium battery
资金
- National Key R&D Program of China [2018YFB0104300]
- Natural Science Foundation of Hebei Province [E2018203301]
Solution-synthesis method for solid electrolytes is attractive due to its facile and scalable process for permeating electrodes and constructing thin electrolyte coating layers. In this work, Cl-doped Na3SbS4 was prepared via an aqueous-solution approach, showing improved interfacial stability towards Na metal compared to solid-state sintered electrolytes. All-solid-state batteries using solution-prepared electrolytes exhibit enhanced cycling performance, with room for further improvement.
Solution-synthesis method is attractive for solid electrolytes because it is a facile and scalable process to be used to permeate electrodes and to construct a thin electrolyte coating layer on active materials. In this work, we report Cl-doped Na3SbS4 prepared via aqueous-solution approach. Besides decent ionic conductivity, the aqueous-solution approached electrolyte demonstrates an improved interfacial stability toward Na metal compared to the solid-state sintered one because of the residual hydrate, nanosized microstructure, and Cl incorporation. All-solid-state batteries using the solution-prepared electrolytes have enhanced cycling performance, though the performance still needs to be further improved. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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