高性能锂离子电池正极Calix[6]quinone（英文）

被引：10
作者：
黄苇苇 [1 ,2 ]
掌学谦 [3 ]
郑仕兵 [1 ]
周文君 [1 ]
谢健 [2 ]
杨志南 [3 ]
张其春 [2 ]
机构：
[1] College of Environmental and Chemical Engineering, Yanshan University
[2] School of Materials Science and Engineering, Nanyang Technological University
[3] State Key Laboratory of Metastable Materials Science and Technology, Yanshan
来源：
ScienceChinaMaterials | 2020年 / 63卷 / 03期
关键词：
calix[6]quinone; lithium-ion battery; organic; cathode; high-performance;
D O I：
暂无
中图分类号：
TM912 [蓄电池]; O625.46 [醌及其衍生物];
学科分类号：
摘要：
有机醌类化合物因其具有高的理论容量值而引起了人们的广泛关注.本文合成了一种新型的环状大分子Calix[6]quinone （C6Q）,它由6个对苯醌单元组成,可提供12个电化学位点,是一种极具发展前景的锂离子正极材料. C6Q在0.1 C的电流密度下展示了高达423 mA h g-1的初始放电比容量(理论放电比容量为447 mA h g-1).经过100圈充放电循环之后,它的容量保持在216 mA h g-1;经过300次循环之后,仍然拥有195 mA h g-1的高容量. C6Q具有高容量和宽的电化学窗口,因此可以提供高达1201 W h kg-1的能量密度.此外,使用有序介孔碳CMK-3固载C6Q的方法可以进一步提高C6Q的电化学性能.
引用
收藏
页码：339 / 346
页数：8
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