Nickel metal cathodes, nickel oxide, antimony metal, antimony trioxide, titanium dioxide rutile and anatase, cobalt metal, zinc metal, tin metal, arsenic metal, boric acid, sodium cyanade, copper cyanide, cobalt chloride, nickel sulphate, nickel chloride, sodium hypophosphite, zinc chloride, sodium gluconate, sodium hexametaphosphate, potassium iodide, calcium iodide, zinc oxide, zirconium oxide, vanadium pentoxide, sodium saccharin, sodium tripoliphosphate, copper sulphate