在6.0 mol/L KOH溶液中,研究了锌电极中添加不同质量分数和不同粒径的ZnO对电极电化学性能的影响.结果表明,在较慢的扫描速度(1 mV/s)下,不同组成的锌电极循环伏安曲线峰形相差较大.对各电极循环伏安曲线峰电位及峰电流对比分析表明,添加质量分数为50%的纳米ZnO有效地改善了锌电极的结构,改进了电极反应的传质和传荷条件,使电极中电活性粒子具有合理的分布,因而显示出了良好的电化学性能,在25周和30周时放电容量仍有220 mA·h/g和198 mA·h/g.
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