Electrochemical study on the Mg2Ni-type hydrogen storage alloy electrode materials

被引：0
|
作者：
Cui, N [1 ]
Luan, B [1 ]
Liu, HK [1 ]
Dou, SX [1 ]
机构：
[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada
来源：
NEW MATERIALS FOR FUEL CELL AND MODERN BATTERY SYSTEMS II | 1997年
关键词：
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Mg2Ni-type hydrogen storage alloy electrodes were prepared and characterised in 6M KOH solution at room temperatures to explore their potentials of application in the secondary batteries. The electrode performances of Mg2Ni-type alloys were evaluated and compared with that of LaNi5. The rate-determining step of discharge process for the Mg2Ni-type alloy electrode was dependent on the alloy compositions and depth of discharge (DOD). The unmodified Mg2Ni had a high charge transfer resistance and mass transfer resistance compared to LaNi5. The additions of yttrium and aluminium in Mg2Ni considerably reduced the both resistance, which resulted in the remarkable improvement of discharge capacity and rate-dischargeabilty.
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页码：573 / 584
页数：6
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