Secondary lithium-ion cell

摘要

A secondary lithium ion cell, containing a lithium salt solution in an ethylene carbonate and ethyl-methyl carbonate solvent mixture as electrolyte, is new. A secondary lithium ion cell has a carbon-containing anode, a lithium-containing cathode and a non-aqueous electrolyte which consists of a solution of 0.8-1.3 mol/l lithium salt in an organic solvent mixture of 15-35 vol.% ethylene carbonate and 65-85 vol.% ethyl-methyl carbonate. Preferred Features: Part (20-30 vol.%) of the ethyl-methyl carbonate may be replaced by dimethoxyethane.