Nickel‐Metal Hydride (Ni‐MH) Batteries

In this present era, one of the imperative fields for research is the electrochemical storage of energy. Batteries play a very crucial role in energy storage. Various types of batteries are available and among them Ni-MH batteries have gain great attention of the researchers due to one or more reasons. This chapter deals with various aspects of Ni-MH batteries including merits, demerits, charging mechanism, performance, efficiency, etc. It will also provide an overview about the history of batteries. Various applications of Ni-MH batteries such as in fuel cell electric vehicles, pure and hybrid electric vehicles as well as in traditional portable electronics devices like mobile phones, cameras, etc have also been discussed. The factors effecting the life cycle of batteries were also explained. Moreover, different types of metal hydrides as negative electrode material and their crystal structures are also studied in detail. This chapter also focused on the recent progress and development in the field of Ni-MH batteries.