Print Email Facebook Twitter All-in-one improvement toward Li6PS5Br-Based solid electrolytes triggered by compositional tune Title All-in-one improvement toward Li6PS5Br-Based solid electrolytes triggered by compositional tune Author Zhang, Zhixia (Yanshan University) Zhang, Long (Yanshan University) Yan, Xinlin (Technische Universität Wien) Wang, Hongqiang (Hebei University) Liu, Yanyan (Yanshan University) Yu, C. (TU Delft RST/Storage of Electrochemical Energy) Cao, Xiaoting (Yanshan University) van Eijck, L. (TU Delft RST/Neutron and Positron Methods in Materials) Wen, Bin (Yanshan University) Date 2019 Abstract Sulfide solid electrolytes possess high ionic conductivity and moderate dendrite suppression capability, but rather poor compatibility against oxide cathodes and metallic Li. Here, we report O-doped Li6PS5Br as solid electrolyte synthesized by a facile solid-state sintering. Different from other O-incorporated sulfides, the O atoms in Li6PS5-xOxBr prefer to substitute the S atoms at free S2− sites rather than those at the PS4 tetrahedra. Remarkably, without deteriorating the ionic conductivity, this inorganic solid electrolyte with O doping exhibits comprehensively enhanced properties including excellent dendrite suppression capability, superior electrochemical and chemical stability against Li metal as well as high voltage oxide cathodes, and good air stability. Li(Ni0.8Co0.1Mn0.1)O2 and LiCoO2-based all-solid-state batteries with Li6PS4.7O0.3Br electrolyte deliver high specific capacity, superior rate capability, and outstanding cycling stability accompanied with low interfacial resistivity. This type of inorganic solid electrolytes is promising for all-solid-state batteries with high energy density. Subject All-solid-state batteriesArgyroditesInterfacial stabilityLi dendrite suppressionSolid electrolytes To reference this document use: http://resolver.tudelft.nl/uuid:d8ceaf3c-ade5-44c0-9cce-4867e9e442c7 DOI https://doi.org/10.1016/j.jpowsour.2018.11.016 Embargo date 2020-11-13 ISSN 0378-7753 Source Journal of Power Sources, 410-411, 162-170 Part of collection Institutional Repository Document type journal article Rights © 2019 Zhixia Zhang, Long Zhang, Xinlin Yan, Hongqiang Wang, Yanyan Liu, C. Yu, Xiaoting Cao, L. van Eijck, Bin Wen Files PDF pagination_POWER_25984.pdf 2.51 MB Close viewer /islandora/object/uuid:d8ceaf3c-ade5-44c0-9cce-4867e9e442c7/datastream/OBJ/view