摘要
采用循环伏安法考察了由溶液法及微波辅助固相法制备的醌胺聚合物的电化学性能。结果表明,采用微波固相法制备的产物具有更高的电极活性、容量、循环稳定性和重现性。将此法制得的醌胺聚合物与金属锂组装成模拟电池,进行恒电流充放电测试。实验结果表明,模拟电池的充放电效率最高可达92.7%,比容量约为41mA·h/g。
The electrochemical properties of poly（amine quinine）s, which are synthesized by solution polymerization or microwave assisted solid-state polymerization, are investigated by cyclic voltammetry. The results shaow that the polymer obtained via solid-state reaction exhibits higher activity, larger capacity, improved cyclic stability and favorable reproducibility, when compared with its counterpart prepared by solution reaction. The former is further used as cathode to assemble model lithium ion batteries. The charge-discharge experiments indicate that the efficiency can reach as high as 92. 7%, and the specific capacity can be about 41mA · h/g.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2009年第24期107-111,共5页
Materials Reports
基金
湖南省自然科学基金(099JJ3100)
关键词
醌胺聚合物
电化学性能
功能高分子
正极材料
锂离子电池
poly（amine quinone） ,electrochemical properties,functional polymers,cathode materials,lithium ion battery
