biostudies-literatureUnknown14(9)Tu TAViet Nam National University Ho Chi Minh CityHo Chi Minh City University of Technology and EducationLi₇P₃S₁₁ doped with CaX₂ (X = Cl, Br, I) and LiI solid electrolytes were successfully prepared by liquid-phase synthesis using acetonitrile as the reaction medium. Their structure was investigated using XRD, Raman spectroscopy and SEM-EDS. The data obtained from complex impedance spectroscopy was analyzed to study the ionic conductivity and relaxation dynamics in the prepared samples. The XRD results suggested that a part of CaX₂ and LiI incorporated into the structure of Li₇P₃S₁₁, while the remaining part existed at the grain boundary of the Li₇P₃S₁₁ particle. The Raman peak positions of PS₄^3- and P₂S₇^4- ions in samRSC advances5764-5770https://www.ebi.ac.uk/biostudies/studies/S-EPMC10865461biostudies-literatureSynergic effect of CaI₂ and LiI on ionic conductivity of solution-based synthesized Li₇P₃S₁₁ solid electrolyte.PMC10865461Toan TVAnh LTTu TAThang LVPhuc NHHfalseSynergic effect of CaI₂ and LiI on ionic conductivity of solution-based synthesized Li₇P₃S₁₁ solid electrolyte.Li₇P₃S₁₁ doped with CaX₂ (X = Cl, Br, I) and LiI solid electrolytes were successfully prepared by liquid-phase synthesis using acetonitrile as the reaction medium. Their structure was investigated using XRD, Raman spectroscopy and SEM-EDS. The data obtained from complex impedance spectroscopy was analyzed to study the ionic conductivity and relaxation dynamics in the prepared samples. The XRD results suggested that a part of CaX₂ and LiI incorporated into the structure of Li₇P₃S₁₁, while the remaining part existed at the grain boundary of the Li₇P₃S₁₁ particle. The Raman peak positions of PS₄^3- and P₂S₇^4- ions in sam2024-01-01T00:00:00Z2024 Feb2026-06-01T08:04:49.521Z2025-02-18T23:14:07.732ZS-EPMC108654613836208310.1039/d4ra00442f