Electrolytic Iron Sulfi des for Thin-Layer Lithium-Ion Batteries

Thin-layer electrolytic iron sulfides synthesized on stainless steel substrates were studied in prototype lithium and lithium-ion batteries with an electrolyte composed of ethylene carbonate, dimethyl carbonate, and 1 M LiClO4. A two-volt lithium-ion system with electrolytic iron sulfide and LiCoO2 as negative and positive electrodes, respectively, was suggested. The discharge capacity of the prototype system is 350-400 mA h g(-1) Fe sulfide.