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An Iodide-Based Li7P2S8I Superionic Conductor



Ezhiylmurugan Rangasamy, Zengcai Liu, Mallory Gobet, Kartik Pilar, Gayatri Sahu, Wei Zhou, Hui Wu, Steve Greenbaum, Chengdu Liang


A Li7P2S8I solid state Li-ion conductor derived from β-Li3PS4 and LiI demonstrates exceptional electrochemical stability. The oxidation instability if 'I' is subverted via its incorporation into the coordinated structure. The inclusion of 'I' also creates stability with metallic LI anode while simultaneously improving the interfacial kinetics. Low temperature membrane processability enables facile fabrication of dense membranes, making it suitable for industrial adoption.
Journal of American Chemical Society


superionic conductor, Li3PS4, Li7P2S8I, Li ion battery


Rangasamy, E. , Liu, Z. , Gobet, M. , Pilar, K. , Sahu, G. , Zhou, W. , Wu, H. , Greenbaum, S. and Liang, C. (2015), An Iodide-Based Li<sub>7</sub>P<sub>2</sub>S<sub>8</sub>I Superionic Conductor, Journal of American Chemical Society, [online], (Accessed May 30, 2024)


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Created February 2, 2015, Updated October 12, 2021