Bintang, His Muhammad Lee, Seongsoo Kim, Jun Tae Jung, Hun-Gi Chung, Kyung Yoon Whang, Dongmok Lim, Hee-Dae 2024-01-19T16:30:22Z 2024-01-19T16:30:22Z 2021-09-02 2020-11 0363-907X https://pubs.kist.re.kr/handle/201004/117935 Liquid-phase synthesis for a sulfide-based solid electrolyte has been widely studied due to its great advantage of being a simpler and more cost-effective method compared with the conventional solid-phase synthesis, even it could induce homogeneous reactions in the solution. However, the physically and chemically stable phosphorus pentasulfide (P2S5) is barely soluble in various solvents; this has been a major problem for achieving a pure solution-phase dissolving solid electrolyte. Therefore, exploring an effective additive for liquid-phase synthesis would be worthwhile and could potentially lead to the discovery of new chemicals to produce qualified solid electrolytes. In this paper, lithium iodide's (LiI) dual role as a strong nucleophile as well as a major reactant source for producing Li7P2S8I is first investigated. The nucleophilic additive of LiI has been proven to break the P-S bonds of P2S5, driving the insoluble P(2)S(5)to become the soluble intermediate complex. Also, it is demonstrated that controlling the reaction times between the LiI and the P(2)S(5)is key to achieving solution-based synthesis, and the role of LiI is investigated by conducting bonding analysis. English WILEY LI2S-P2S5 SOLID-ELECTROLYTE N-METHYLFORMAMIDE THIO-LISICON IONIC CONDUCTOR LI7P3S11 Elucidation of the role of lithium iodide as an additive for theliquid-basedsynthesis ofLi(7)P(2)S(8)Isolid electrolyte Article 10.1002/er.5775 1 INTERNATIONAL JOURNAL OF ENERGY RESEARCH, v.44, no.14, pp.11542 - 11549 INTERNATIONAL JOURNAL OF ENERGY RESEARCH 44 14 11542 11549 scie scopus 000557598900001 2-s2.0-85089178384 Energy & Fuels Nuclear Science & Technology Energy & Fuels Nuclear Science & Technology Article LI2S-P2S5 SOLID-ELECTROLYTE N-METHYLFORMAMIDE THIO-LISICON IONIC CONDUCTOR LI7P3S11 Li7P2S8I liquid-based synthesis nucleophilic agent solid-state electrolyte