Lithium rechargeable electrochemical cell

摘要

A lithium rechargeable electrochemical cell comprising an anode of pure or alloyed lithium or of lithium-containing carbon, a cathode of metal oxide, and an electrolyte comprising a mixture of aprotic organic solvents and a lithium salt, characterized by the fact that said mixture is made up of: 5% to 40% by volume of propylene carbonate; 10% to 20% by volume of ethylene carbonate; and 50% to 85% by volume of dimethyl carbonate.