The cell of claim 4 in which the anode is a lithium metal, a lithium/aluminum alloy, a lithium/silicon alloy, a lithium/carbon compound or a mixture thereof, the electrolyte is a solution of salt selected from the group consisting of LiClO4, LiAsF6, LiBF4 and mixtures thereof, dissolved in an organic solvent selected from propylene carbonate, dimethoxyethane and mixtures thereof.