The Super-iron battery is a moniker for a proposed class of rechargeable electric battery. Such batteries feature cathodes composed of ferrate salts, commonly potassium ferrate () or barium ferrate ().Licht, S.; R. Tel-Vered "Rechargeable Fe(III/VI) super-iron cathodes" Chemical Communications, 2004, volume 6, p. 628-629. One attraction to the proposed device is that the spent cathode would consist of a rust-like material, which is preferable to batteries based on toxic cadmium, manganese and nickel. Another attraction is potentially higher energy capacity.
See also Other iron-based batteries Lithium iron phosphate battery Lithium iron disulfide battery Nickel–iron battery Other battery technologies List of battery types Lithium-ion battery Nanotechnology Nickel–cadmium battery Nickel–metal hydride battery
References
Further reading Super Battery. Battery Bimonthly, Vol. 34 No. Pp. 247–249. 2004 Energetic Iron(VI) Chemistry: The Super-Iron Battery, Science, Volume 285, p. 1039, 13 August 1999. "Super-Iron" Comes to the Rescue of Batteries, Science, Volume 285, p. 995, 13 August 1999.