Recharge catalyst with thin film low corrosion coating, metal-air electrode including said catalyst and methods for making said catalyst and electrode

摘要

A catalyst composition for use in a rechargeable metal-air electrochemical cell comprises an oxygen evolution catalyst coated with a thin film deposition of a binder and an electrically conductive particulate material which is not corroded during charge. This catalyst is useful to make an air electrode which has greater corrosion protection than an air electrode having an oxygen evolution catalyst without the thin film deposition.