Abstract
AbstractIn this paper, sulfide glass electrolyte powder with a nominal composition of (Li2S)60(SiS2)28(P2S5)12 is hot pressed at a 330°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 LiNO3 co‐salt. Furthermore, the scalability of the reinforced glass separator technology is demonstrated by assembling and testing a hybrid single‐layer pouch cell.
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