Abstract

Hydrogen storage alloys for electrochemical application have been extensively studied for many years. We have presented a review of recent research activities on metal hydride alloys for nickel metal hydride battery and also provided an overview of the use of metal hydrides in other electrochemical applications. AB5 and AB2 alloys are very well established systems. In order to potentially dominate the future electric vehicle and stationary applications, self-discharge, low-temperature performance, and cycle stability become more important to study, and the trend of recent research reflects the efforts on improving the aforementioned properties. The most abundant element in the universe, have greatest potential as substitution energy source with following advantages. Renewable energy source and Non-polluting and forms a bi product as water.

Keywords: Metal hydride; Hydrogen storage alloy; Fossil fuels cell