US Patent 8153296 Lithium cell with cathode containing metal doped iron sulfide

A primary cell having an anode comprising lithium and a cathode comprising a metal doped iron sulfide and carbon particles. A cathode slurry is prepared comprising the metal doped iron sulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.