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

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