Hybrid Li-S pouch cell with a reinforced sulfide glass solid-state electrolyte film separator

摘要

In this paper, sulfide glass electrolyte powder with a nominal composition of (Li2S)(60)(SiS2)(28)(P2S5)(12)is hot pressed at a 330 degrees C and 12 MPa into separator films using non-woven fiberglass reinforcement. The reinforced separator films are 93% dense, bendable, and have an ionic conductivity of 0.7 mS/cm at room temperature. When integrated into hybrid Li-S coin cells with liquid electrolyte, these reinforced glass separators blocked the parasitic polysulfide shuttle sufficiently to enable reversible cycling without LiNO(3)co-salt. Furthermore, the scalability of the reinforced glass separator technology is demonstrated by assembling and testing a hybrid single-layer pouch cell.