A novel alkaline redox couple: chemistry of the Fe6+/B2− super-iron boride battery

Abstract

A high capacity alkaline redox storage chemistry is explored based on a novel, environmentally benign zirconia stabilized Fe⁶⁺/B²⁻ chemistry, which sustains an electrochemical potential matched to the pervasive, conventional MnO₂–Zn battery chemistry, however with a much higher electrochemical capacity.