| TIAN Xiao-guang,ZHOU Dong-hui.Effect of Ball Milling by Nickel on Electrochemical Properties of A2B7Type Alloy[J],39(6):18-21 |
| Effect of Ball Milling by Nickel on Electrochemical Properties of A2B7Type Alloy |
| Received:July 01, 2010 Revised:December 10, 2010 |
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| DOI： |
| KeyWord:A2B7type hydrogen storage alloy alloy electrode ball milling by nickel electrochemical properties |
| Author | Institution |
| TIAN Xiao-guang |
Zhengzhou Transportation Vocational College, Zhengzhou , China |
| ZHOU Dong-hui |
Zhengzhou Nissan Automobile Co, Ltd, Zhengzhou , China |
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| Abstract: |
| In order to improve the electrochemical performances of A2B7type hydrogen storage alloy, the effects of bare power and ball milling by nickel on the electrochemical properties of La0.75Mg0.25Ni3.44Al0.06hydrogen storage alloy electrode in different time were systemically explored. The electrochemical properity and dymamics properity of alloy electrode were studied. The result shows that the activation and cycling stability of the ball milling by nickel alloy electrode has incresement; That ball milling by nickel alloys can increase exchange current density J0and electrocatalytic activity, reduce electrochemical reaction resistance,enhance diffusivity of the charge in powder surface, so successfully improve the high-rate discharge performance of the coated electrode. |
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