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Iron sulfides with dopamine-derived carbon coating as superior performance anodes for sodium-ion batteries

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Title
Iron sulfides with dopamine-derived carbon coating as superior performance anodes for sodium-ion batteries
Author(s)
Aihua Jin; Yu S.-H.; Jae-Hyuk Park; Seok Mun Kang; Mi-Ju Kim; Jeon T.-Y.; Mun J.; Yung-Eun Sung
Publication Date
2019-10
Journal
NANO RESEARCH, v.12, no.10, pp.2609 - 2613
Publisher
TSINGHUA UNIV PRESS
Abstract
© 2019, Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature.High energy ball-milled iron sulfides with thin carbon layer coating (BM-FeS/C composites) were prepared by the simple and economical process. Ball-milled process, followed by carbon coating, reduced the particle size and increased the electrical conductivity. When employed as sodium-ion battery anodes, BM-FeS/C composites showed extremely high electrochemical performance with reversible specific capacity of 589.8 mAh·g−1 after 100 cycles at a current density of 100 mA·g−1. They also exhibited superior rate capabilities of 375.9 mAh·g−1 even at 3.2 A·g−1 and 423.6 mAh·g−1 at 1.5 A·g−1. X-ray absorption near edge structure analysis confirmed the electrochemical pathway for conversion reaction of BM-FeS/C composites.[Figure not available: see fulltext.]
URI
https://pr.ibs.re.kr/handle/8788114/6862
ISSN
1998-0124
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Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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