采用常规水热法合成锌酸钙，采用水热法和共沉淀法制备锌铝水滑石。利用SEM、XRD、EIS和倍率充放电技术对制备的材料进行表征与测试。结果表明，制备的锌酸钙样品为六边形片状晶体，且粒径均匀、分散性较好；水热法制备的锌铝水滑石具有片状晶体，粒径均匀、分散较好；制备的锌酸钙结晶程度高，不同方法合成的锌铝水滑石出现衍射峰的图谱基本一致；锌酸钙及锌铝水滑石的电极电荷传递阻抗（R_ct）均小于氧化锌；锌酸钙以及锌铝水滑石均能提升锌电极耐蚀性能；锌酸钙负极经过40次充放电循环后循环保持率为86.28%。

Calcium zincate is obtained by a simple hydrothermal method and Zn-Al-hydrotalcites (Zn-Al-LDHs) are successfully synthesized by hydrothermal method and co-precipitation method.The obtained materials are characterized and tested by scanning electron microscopy (SEM),X-ray diffraction (XRD),electrochemical impedance spectroscopy (EIS) and rate-charging and discharging techniques.SEM test shows that the obtained calcium zincate samples are hexagonal flaky crystals with good uniformity of particle size dispersion.The hydrothermally prepared Zn-Al hydrotalcite has lamellar crystals with good particle size distribution.XRD shows that the crystallinity of the prepared calcium zincate is high,and the diffraction peaks of zinc aluminum hydrotalcite synthesized by different methods are basically the same.EIS tests show that the electrode charge transfer resistances (Rct) of calcium zincate and zinc aluminum hydrotalcite both are lower than zinc oxide.Tafel curve analysis results show that both calcium zincate and zinc aluminum hydrotalcite can improve the corrosion resistance of zinc electrode.The rate charge and discharge test finds out that this calcium zincate negative electrode has a cycle retention rate of 86.28% after 40 charge and discharge cycles.

屈亚松(1992-),男,硕士研究生,研究方向为电池材料,qys864656425@qq.com