Park, M. Jung, W.D. Choi, S. Son, K. Jung, H.-G. Kim, B.-K. Lee, H.-W. Lee, J.-H. Kim, H. 2024-01-20T03:33:05Z 2024-01-20T03:33:05Z 2021-09-02 2016-09 1229-7801 https://pubs.kist.re.kr/handle/201004/123765 We explore the crystalline structure and phase transition of lithium thiophosphate (Li7P3S11) solid electrolyte using electron microscopy and X-ray diffraction. The glass-like Li7P3S11 powder is prepared by the high-energy mechanical milling process. According to the energy dispersive X-ray spectroscopy (EDS) and selected area diffraction (SAD) analysis, the glass powder shows chemical homogeneity without noticeable contrast variation at any specific spot in the specimen and amorphous SAD ring patterns. Upon heating up to 260°C the glass Li7P3S11 powder becomes crystallized, clearly representing crystal plane diffraction contrast in the high-resolution transmission electron microscopy image. We further confirm that each diffraction spot precisely corresponds to the diffraction from a particular Li7P3S11 crystallographic structure, which is also in good agreement with the previous X-ray diffraction results. We expect that the microscopic analysis with EDS and SAD patterns would permit a new approach to study in the atomic scale of other lithium ion conducting sulfides. English Korean Ceramic Society Chemical analysis Electrolytes Electron microscopy Energy dispersive spectroscopy Glass Glass ceramics Ions Lithium Lithium alloys Lithium compounds Lithium-ion batteries Mechanical alloying Metallography Milling (machining) Phase transitions Solid electrolytes Solid state devices Sulfur compounds Transmission electron microscopy X ray diffraction X ray spectroscopy All-solid state batteries Crystalline structure Crystallographic structure Energy dispersive X ray spectroscopy High-energy mechanical milling Lithium ion conductors Microscopic analysis Selected area diffraction High resolution transmission electron microscopy Microscopic analysis of high lithium-ion conducting glass-ceramic sulfides Article 10.4191/kcers.2016.53.5.568 1 Journal of the Korean Ceramic Society, v.53, no.5, pp.568 - 573 Journal of the Korean Ceramic Society 53 5 568 573 scopus kci ART002154088 2-s2.0-85011620468 Article Chemical analysis Electrolytes Electron microscopy Energy dispersive spectroscopy Glass Glass ceramics Ions Lithium Lithium alloys Lithium compounds Lithium-ion batteries Mechanical alloying Metallography Milling (machining) Phase transitions Solid electrolytes Solid state devices Sulfur compounds Transmission electron microscopy X ray diffraction X ray spectroscopy All-solid state batteries Crystalline structure Crystallographic structure Energy dispersive X ray spectroscopy High-energy mechanical milling Lithium ion conductors Microscopic analysis Selected area diffraction High resolution transmission electron microscopy All-solid-state battery Microscopic analysis Phase transition Sulfide lithium ion conductor Transmission electron microscopy