An in situ formed Se/CMK-3 composite for rechargeable lithium-ion batteries with long-term cycling performance

被引:58
|
作者
Zheng, Cheng [1 ,2 ]
Liu, Minying [1 ,2 ]
Chen, Wenqiang [1 ,2 ]
Zeng, Lingxing [3 ]
Wei, Mingdeng [1 ,2 ]
机构
[1] Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China
[2] Fuzhou Univ, Inst Adv Energy Mat, Fuzhou 350002, Fujian, Peoples R China
[3] Fujian Normal Univ, Coll Environm Sci & Engn, Fuzhou 350007, Fujian, Peoples R China
基金
中国国家自然科学基金;
关键词
LI-SE BATTERIES; ORDERED MESOPOROUS CARBONS; BINDER-FREE CATHODE; ANODE MATERIALS; SELENIUM BATTERIES; STORAGE PERFORMANCE; TRANSITION-METAL; CAPACITY; NANOCOMPOSITE; NANOPARTICLES;
D O I
10.1039/c6ta05029h
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A composite of Se/CMK-3 was in situ synthesized for the first time via a carbon thermal reduction route by using ordered mesoporous carbon CMK-3 as a nanoreactor and reduction agent, and was then applied as an anode material for Li-ion intercalation. Owing to the fact that CMK-3 acts as a stable matrix for Se and facilitates electronic conductivity and ion transportation, the composite exhibited large reversible capacity, high rate performance and excellent long-term cycling stability. For instance, a reversible capacity of 770 mA h g(-1) can be achieved after 100 cycles at 1C, and a capacity of 619 mA h g(-1) was retained after 1000 cycles even at a rate as high as 2C.
引用
收藏
页码:13646 / 13651
页数:6
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