The effect of chemical activation of the Mg-Ni type hydrogen-storage-alloy anode on its electrochemical properties

被引：0
|
作者：
Majchrzycki, W [1 ]
Wieczorek, I [1 ]
Sierczynska, A [1 ]
Jankowska, E [1 ]
机构：
[1] Cent Lab Akumulatorow & Ogniw, PL-61362 Poznan, Poland
来源：
PRZEMYSL CHEMICZNY | 2003年 / 82卷 / 8-9期
关键词：
D O I：
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中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Electrodes prepd. from Mg-based mechanical alloys of 99.8+% pure Ni, Mn and Al used in atomic ratios and mixed with 10% powd. Ni, were preactivated. in: (a) 0.06 M NH4F, (b) 0.5 M KF, (c) 1 M KF, (d) 2 M KF, (e) 6 M KOH, (f) hot charging. The pretreatment was intended to increase porosity, Ni metal content, and electrode surface area. Mode a resulted in 100% capacity of the electrodes in 10 charging/discharging cycles. Regardless of mode, and even nonactivated, the Mg1.5Mn0.5Ni showed nearly 100% capacity with respect to max. discharge capacity. Mode (f) was ineffective.
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页码：576 / 579
页数：4
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