Electrochemical behavior of metal hydrides

Metal hydride electrodes are of particular interest owing to their potentia l and practical application in batteries. A large number of hydrogen storag e materials has been characterized so far. This paper deals with the effect of the chemical nature and stoichiometry of specific alloy families (AB(5) , A(2)B, AB/AB(2) and AB(2)) on the hydride stability, hydrogen storage cap acity and kinetics of hydrogen sorption-desorption in the solid phase/gas a nd solid phase/electrolyte solution systems. Special attention has been pai d towards the electrochemical properties of metal hydrides in terms of thei r performance in Ni-MH rechargeable alkaline cells.