Article ID Journal Published Year Pages File Type
1626781 Journal of Alloys and Compounds 2006 4 Pages PDF
Abstract

The electrochemical characterization of a MmNi3.55Co0.75Al0.2Mn0.5 metal hydride electrode in two alkaline electrolytes (NaOH or KOH) is reported. The results from both electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) show that absorption/desorption of H atoms at the metal–electrolyte interface is markedly suppressed by using a NaOH electrolyte instead of a KOH electrolyte. This results in a significant reduction of the self-decomposition rate of the negative active material and thus leads to an improvement in the self-discharge performance of nickel–metal hydride (Ni–MH) batteries.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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