采用电镀和水热反应两步法制备了一种高柔性NiTe/Ni@CC超级电容器正极材料。利用X射线衍射、扫描电镜、能谱仪和电化学工作站对NiTe/Ni@CC电极进行了表征与分析。结果表明，该电极具有CC-Ni-NiTe的层次结构；在电流密度为 5 mA/cm²时，电极的面积比电容达到2.85 F/cm²；由该电极组装的NiTe/Ni@CC//AC/CC全固态柔性超级电容器在 5.57 mW/cm²的面功率密度下可提供高达0.50 mW·h/cm²的面能量密度，并且在0~90°的2 000次弯曲循环后，具有77.20%的初始电容保持率。

A highly flexible NiTe/Ni@CC electrode material for supercapacitor is fabricated via a two-step approach including electroplating and in situ growth.X-ray diffraction (XRD),scanning electron microscopy (SEM),energy dispersive spectroscopy (EDS) and electrochemical workstation are employed for the characterization and analysis of NiTe/Ni@CC electrode material.It is shown that the electrode material has a CC-Ni-NiTe hierarchical structure.As the current density is 5 mA·cm^-2,the areal specific capacitance of the electrode reaches 2.85 F·cm^-2.NiTe/Ni@CC//AC/CC all-solid-state flexible supercapacitor assembled by this electrode can provide an area energy density as high as 0.50 mWh·cm^-2 at an area power density of 5.57 mW·cm^-2,and has a capacitance retention rate of 77.20% after 2,000 bending cycles from 0° to 90°.

钱豪(1996-),男,硕士研究生,研究方向为超级电容器,1104533817@qq.com