Dilution of a highly concentrated Li-salt/sulfolane electrolyte with a non-coordinating hydrofluoroether (HFE) solvent increases ionic conductivity and diffusivity but decreases the Li+ transference number.
Fluorination of ether solvents suppresses solvent co-intercalation into graphite. The fluoroether electrolytes enable a wider working temperature window of Li-ion batteries and support silicon–graphite composite anodes.
Enhanced Li+ transport at electrode interfaces in highly concentrated TetraPEG-based organogel electrolytes.
We revealed that lithium bis(fluorosulfonyl)amide-concentrated electrolytes effectively suppress the formation of inactive Fe and LiF in the cycled FeF3 cathode at the charged state, thus improving its discharge/charge cycling stability.
This review introduces organic ionic plastic crystals (OIPCs) as Li-ion conductors and recent progress in the development of Li secondary batteries with OIPC-based solid electrolytes.