摘要
本文基于迈克尔加成机理,以对苯醌和乙二胺为原材料合成了一种醌胺聚合物,采用红外波谱和扫描电镜分别对其结构和形貌进行了表征,并以1 M ZnSO_(4)·7H_(2)O为电解质,锌箔为对电极,研究了其作为正极材料在水系锌离子电池中的电化学性能。实验结果表明,其在0.02 A/g下的首圈充放电比容量分别达到159.6 mAh/g和53.7 mAh/g,50次循环后容量保持率为57%,库伦效率保持在90%以上,表现出良好的电化学性能。
A quinone amine polymer was synthesized from p-benzoquinone and ethylenediamine based on Michael addition mechanism.The structure and morphology were characterized by infrared spectrum and scanning electron microscopy.The quinone amine polymer was tested for its electrochemical properties.as a cathode material in an aqueous zinc battery composed of an electrolyte of 1 M ZnSO_(4)·7H_(2)O and electrodes of zinc foils.The experimental results showed that the charge and discharge specific capacity were 159.6 mAh/g and 53.7 mAh/g in 0.02 A/g,respectively.The retention efficiency was 57%after 50 cycles,and the coulomb efficiency was above 90%,indicative of excellent electrochemical performance.
作者
郭晨晓
刘洋
王丽秋
GUO Chenxiao;LIU Yang;WANG Liqiu(School of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China)
出处
《燕山大学学报》
CAS
北大核心
2022年第1期82-89,共8页
Journal of Yanshan University
基金
河北省自然科学基金资助项目(B2019203500)。
关键词
水系锌离子电池
有机正极材料
醌胺聚合物
电化学性能
aqueous zinc ion battery
organic cathode material
quinone amine polymer
electrochemical performance
作者简介
郭晨晓(1995-),女,河南濮阳人,博士研究生,主要研究方向为水系锌离子电池有机正极材料;通信作者:王丽秋(1964-),女,黑龙江海伦人,博士,教授,博士生导师,主要研究方向为太阳能电池及金属离子电池有机电极材料、荧光探针、石墨烯,Email:liqiuwang@tom.com。
