Jung, Wo Dum Yun, Bin-Na Jung, Hun-Gi Choi, Sungjun Son, Ji-Won Lee, Jong-Ho Lee, Jong-Heun Kim, Hyoungchul 2024-01-19T23:03:26Z 2024-01-19T23:03:26Z 2021-09-03 2018-04 2166-532X https://pubs.kist.re.kr/handle/201004/121570 We demonstrate that the Li-ion conductivity can be improved by adding a certain amount of Li (x = 0.25-0.5) as a charge carrier to the composition of glass-ceramic Li7+ xP3S11. Structural analysis clarified that the structural changes caused by the ratio of ortho-thiophosphate tetrahedra PS43- and pyro-thiophosphate ditetrahedra P(2)S(7)4(-) affect the Li-ion conductivity. The ratio of PS43- and P2S74- varies depending on x and the highest Li-ion conductivity (2.5 x 10(-3) S cm(-1)) at x = 0.25. All-solidstate LiNi0.8Co0.15Al0.05O2/Li7.25P3S11/In-metal cell exhibits the discharge capacity of 106.2 mAh g(-1). This ion conduction enhancement from excess Li is expected to contribute to the future design of sulfide-type electrolytes. (C) 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license. English AMER INST PHYSICS STATE BATTERIES LITHIUM CONDUCTORS Configuring PSx tetrahedral clusters in Li-excess Li7P3S11 solid electrolyte Article 10.1063/1.5011105 1 APL MATERIALS, v.6, no.4 APL MATERIALS 6 4 scie scopus 000431141500015 2-s2.0-85041139557 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Science & Technology - Other Topics Materials Science Physics Article STATE BATTERIES LITHIUM CONDUCTORS electrolytes sulfur compounds ceramics ionic conductivity batteries