FLUORINATED ALKALI ION ELECTROLYTES WITH URETHANE GROUPS

摘要

This invention relates generally to electrolytes for use in electrochemical cells that employ alkali metals, and, more specifically, to fluorinated electrolytes for use in lithium-containing batteries. Perfluoropolyether electrolytes terminated with polar substituents such as dimethylurethanes show enhanced ionic conductivities when formulated with lithium bis(trifluoromethane)sulfonimide, making them useful for use as lithium cell electrolytes.