Abstract: Zn-Al-Ce-LDHs was prepared by hydrothermal method and used as a new anode material for Zn-Ni secondary battery. The morphology and microstructure of Zn-Al-Ce-LDHs were analyzed by XRD and SEM. The electrochemical properties of Zn-Al-Ce-LDHs as negative electrode materials for Zn-Ni battery were studied by cyclic voltammetry (CV), Tafel polarization curve and constant current charge discharge test. XRD and SEM analysis showed that the crystallinity of the prepared Zn-Al-Ce-LDHs was good, the dispersion was uniform and showed regular hexagonal structure. The results of electrical properties show that Zn-Al-Ce-LDHs has good cycle reversibility and corrosion resistance when it applied to Zn-Ni secondary battery. The analysis of constant current charge discharge test results shows that Zn-Al-Ce-LDHs electrode has excellent cycle stability and charge discharge characteristics. After 80 cycles, the cycle retention rate can reach 95.1%.

Key words: Zn-Al-Ce-LDHs, Zn-Ni secondary battery, Electrochemisty performance, Cycle stability

摘要： 采用水热法制备Zn-Al-Ce-LDHs，并且将其作为锌镍二次电池的新型负极材料。利用红外光谱（FT-IR）、X射线衍射仪（XRD）和扫描电镜（SEM）对制备的Zn-Al-Ce-LDHs进行了形貌和微观结构的分析。通过循环伏安曲线（CV）、Tafel极化曲线和恒电流充电放电测试研究了Zn-Al-Ce-LDHs作为锌镍电池负极材料的电化学性能。XRD和SEM分析发现制备的Zn-Al-Ce-LDHs结晶度完好，分散均匀并且呈现出了规则六边形片状结构。电学性能研究结果表明Zn-Al-Ce-LDHs应用到Zn-Ni二次电池中表现出了很好的循环可逆性能和抗腐蚀性能，恒电流充电放电测试结果分析可知，Zn-Al-Ce-LDHs电极表现出了较为优异的循环稳定性以及充放电特性。经过80次循环后，循环保持率可以达到95.1%。

关键词: 锌铝铈水滑石, 锌镍二次电池, 电化学性能, 循环稳定性