FeS@tubular mesoporous carbon as high capacity and long cycle life anode materials for lithium- and sodium-ions batteries

被引：22
作者：
Cao, Zhijie [1 ]
Ma, Xiaobo [1 ]
Dong, Wenhao [1 ]
Wang, Hailong [1 ]
机构：
[1] Ningxia Univ, Sch Phys & Elect Elect Engn, Adv Energy Storage Mat & Devices Lab, Yinchuan 750021, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 786卷
基金：
中国国家自然科学基金;
关键词：
Li-ion batteries; Na-ion batteries; FeS; Mesoporous carbon; EXCELLENT ELECTROCHEMICAL PERFORMANCE; STORAGE; GRAPHENE; MOS2; NANOSHEETS; COMPOSITE; PSEUDOCAPACITANCE; ELECTRODES; CHALLENGES; SULFIDE;
D O I：
10.1016/j.jallcom.2019.01.391
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：
An ordered tubular FeS@tubular mesoporous carbon composite consisting of FeS nanoparticles and tubular mesoporous carbon (CMK-5) is synthesized as anode material for Li- and Na-ions batteries. For applications in Li-ion batteries, the FeS@CMK-5 anode maintains a high reversible capacity of 720 mAh g(-1) after 100 cycles at 200 mAg(-1), much better than that of pristine FeS (166 mAh g(-1)) and CMK-5 (472 mAh g(-1)). Na-ion storage measurements reveal that the FeS@CMK-5 composite delivers a reversible capacity of 445 and 391 mAh g(-1), respectively, at the current density of 1000 and 5000 mA g(-1) over 100 cycles. The excellent electrochemical properties of FeS@CMK-5 for Li- and Na-ions storage can be attributed to its special structural superiority, which effectively accommodates the volume change, improves the electrical conductivity, and shortens the diffusion paths of Li- and Na-ions during the insertion/extraction process. (C) 2019 Published by Elsevier B.V.
引用
收藏
页码：523 / 529
页数：7
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