Role of additives: beta-Ni(OH)2 in Battery and supercapacitors

Transition metal oxides/hydroxides are a class of important mineral materials that have drawn extensive research attention as electrode materials and are qualified to be electrode materials for supercapacitors. With the increasing demand for portable electronic devices and electric vehicle applications, significant attention is focused on the development of alkaline batteries with higher specific energies in which supercapacitors plays a vital role. In particular, the development and commercialization of Nickel/metal hydride (Ni-MH) technology afford the possibility of producing supercapacitors and secondary batteries with high specific energy.