Conferences

Activation of the Zirconium-Alloy Electrodes of Nickel-Metal Hydride Accumulator and Determination of Their Hydrogen Storage Capacity

 
V.Lavrenko,
 
V.Lavrenko,
  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2008, #07/08
http://www.materials.kiev.ua/article/1356

Abstract

Potentiodynamic cycling is proposed to select conditions for the activation of zirconium-alloy electrodes of a nickel-hydride accumulator. The electrochemical characteristics of the electrodes are studied. It is shown that the full charge and discharge capacities are impossible in hydrogenation–dehydrogenation conditions that do not correspond to the polarization curves. The maximum discharge capacity under the same conditions is achieved for an electrode of 0.5 g while incomplete discharge capacity is observed for a sample of 0.1 g.


ACTIVATION OF ELECTRODES, DEHYDROGENATION, HYDROGEN STORAGE CAPACITY, HYDROGENATION, POLARIZATION CURVES, POTENTIODYNAMIC CYCLING