Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (4): 61-63.

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INFLUENCES OF Al CONTENTS ON ELECTROCHEMICAL PROPERTIES OF MLNi4-xMnAlx HYDROGEN STORAGE ELECTRODES

Zhao Dongjiang Cai Chengxin., Wang Baochen   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun
  • Received:1992-07-07 Revised:1992-09-18 Published:1993-08-10 Online:1993-08-10

Abstract: The electrochemical performances of MLNi4-xMnAlx hydrogen storage alloys with different Al content have been studied. The results showed that the discharge capacity,fast discharge ability,overpotentials and cycle life of the MLNi4-xMnAlx electrodes were affected by Al contents. The cyclic voltarnmetry of MH electrodes exhibited a good linear relationship between Ip and υ 1/2,suggesting MH electrode reaction being controlled by diffusion process.

Key words: hydride electrode, rare earth-nickel alloy, property