系统地研究了Co含量对RENi4.3-xCoxMno4Al0.3贮氢合金(x=0.5～1.3)的相结构和高温(60℃)电化学性能的影响.研究结果表明:RENi4.3-xCoxMn0.4Al0.3合金(x=0.5～1.3)具有单一的CaCu5型LaNi5相结构,且其晶胞常数c和晶胞体积V随Co含量的增加而增大;在60℃工作条件下,随Co含量的增加,合金的充放电循环稳定性明显提高,但合金最大放电容量和高倍率放电性能有所降低.
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