Print Email Facebook Twitter Synthesis and characterization of argyrodite solid electrolytes for all-solid-state Li-ion batteries Title Synthesis and characterization of argyrodite solid electrolytes for all-solid-state Li-ion batteries Author Zhang, Zhixia (Yanshan University) Zhang, Long (Yanshan University) Liu, Yanyan (Yanshan University) Yu, C. (TU Delft RST/Fundamental Aspects of Materials and Energy) Yan, Xinlin (Technische Universitat Wien) Xu, B. (Yanshan University) Wang, L. (Yanshan University) Date 2018-05-30 Abstract Li6PS5X (X = Cl, Br, I) argyrodites possess high ionic conductivity but with rather scattered values due to various processing conditions. In this work, Li6PS5X solid electrolytes were prepared by solid-state sintering or mechanical alloying and optimized with or without excess Li2S. Solid-state sintering prefers excess Li2S, whereas mechanical alloying prefers stoichiometric Li2S to synthesize high-purity samples with high ionic conductivity. Solid-state sintering is also more suitable than mechanical milling for high ionic conductivity. Li6PS5Cl with the highest ionic conductivity among Li6PS5X was comprehensively characterized for electrochemical performance and air stability. MoS2/Li6PS5Cl all-solid-state batteries assembled with Li6PS5Cl-coated MoS2 as cathode and with Li6PS5Cl as solid electrolyte demonstrate high capacity and good cycling stability. Subject All-solid-state batteriesArgyroditesLiPSClSolid electrolytesSulfides To reference this document use: http://resolver.tudelft.nl/uuid:b3e3a462-45b4-4430-8137-0653012e5399 DOI https://doi.org/10.1016/j.jallcom.2018.03.027 Embargo date 2020-03-08 ISSN 0925-8388 Source Journal of Alloys and Compounds, 747, 227-235 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2018 Zhixia Zhang, Long Zhang, Yanyan Liu, C. Yu, Xinlin Yan, B. Xu, L. Wang /islandora/object/uuid:b3e3a462-45b4-4430-8137-0653012e5399/datastream/OBJ/view