High-purity iron pyrite (FeS2) nanowires as high-capacity nanostructured cathodes for lithium-ion batteries

被引:151
作者
Li, Linsen [1 ]
Caban-Acevedo, Miguel [1 ]
Girard, Steven N. [1 ]
Jin, Song [1 ]
机构
[1] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA
基金
美国国家科学基金会;
关键词
THIN-FILMS; NATURAL PYRITE; PHASE; SILICON; CONVERSION; ANODES; GROWTH; TRANSFORMATIONS; ELECTROLYTE; TRANSPORT;
D O I
10.1039/c3nr05851d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Iron pyrite is an earth-abundant and inexpensive material that has long been interesting for electrochemical energy storage and solar energy conversion. A large-scale conversion synthesis of phase-pure pyrite nanowires has been developed for the first time. Nano-pyrite cathodes exhibited high Li-storage capacity and excellent capacity retention in Li/pyrite batteries using a liquid electrolyte, which retained a discharge capacity of 350 mAh g(-1) and a discharge energy density of 534 Wh kg(1) after 50 cycles at 0.1 C rate.
引用
收藏
页码:2112 / 2118
页数:7
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