期刊论文

Study on performance of NiTe /Ni@CC/ /AC/CC all-solid-state flexible supercapacitor

中文

现代化工

0253-4320

2021

41

07

108-112+117

10.16606/j.cnki.issn0253-4320.2021.07.023

国家自然科学基金青年项目（51701022）；

本校为第一机构

采用电镀和水热反应两步法制备了一种高柔性Ni Te/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Ni Te/Ni@CC电极进行了表征与分析。结果表明,该电极具有CC-Ni-Ni Te的层次结构;在电流密度为5 m A/cm~2时,电极的面积比电容达到2.85 F/cm~2;由该电极组装的Ni Te/Ni@CC//AC/CC全固态柔性超级电容器在5.57 m W/cm~2的面功率密度下可提供高达0.50 m W·h/cm~2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~(...