Enabling wide temperature battery operation with hybrid lithium electrolytes

Chem Commun (Camb). 2024 Apr 25. doi: 10.1039/d4cc01110d. Online ahead of print.ABSTRACTWe demonstrate that an ionic liquid 1-ethyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide combined with propylene carbonate and lithium bis(trifluoromethanesulfonyl)imide yields a hybrid electrolyte that enables a wide operational temperature window (-20 °C to 60 °C). When integrated into a lithium titanate‖lithium cobalt oxide full-cell configuration, high-rate capability is achieved at -20 °C with >40% retention at a C/2 cycling rate, and negligible capacity fade is observed during rate capability tests and long-term cycling at 60 °C.PMID:38660776 | DOI:10.1039/d4cc01110d

Source: Chemical Communications - April 25, 2024 Category: Chemistry Authors: Spencer A Langevin Tanner Hamann Courtney McHale Jesse S Ko Source Type: research