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Hybrid Li‐S pouch cell with a reinforced sulfide glass solid‐state electrolyte film separator
Author(s) -
Yersak Thomas,
Salvador James R.,
Schmidt Robert D.,
Cai Mei
Publication year - 2021
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.15830
Subject(s) - separator (oil production) , materials science , electrolyte , sulfide , ionic conductivity , composite material , polysulfide , conductivity , chemical engineering , metallurgy , electrode , chemistry , physics , engineering , thermodynamics
Abstract In this paper, sulfide glass electrolyte powder with a nominal composition of (Li 2 S) 60 (SiS 2 ) 28 (P 2 S 5 ) 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 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.