一种醌胺聚合物正极材料在水系锌离子电池中的应用  

A quinone amine polymer and its application as cathode material in aqueous zinc ion batteries

作　　者：郭晨晓 刘洋[1] 王丽秋[1] GUO Chenxiao;LIU Yang;WANG Liqiu(School of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China)

机构地区：[1]燕山大学环境与化学工程学院,河北秦皇岛066004

出　　处：《燕山大学学报》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)。

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.

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 

分 类 号：TQ152[化学工程—电化学工业]