Microalgae-derived hollow carbon-MoS2 composite as anode for lithium-ion batteries

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We developed a novel composite structure of MoS2 and naturally derived carbon as anode materials for lithium-ion batteries by using microalgae as both source materials and templates for nitrogen-doped hollow carbon with three dimensional internal structures. The microalgae-derived carbon performed the roles as conducting matrix and template for vertically stacked MoS2 nanosheets. The electrochemical performance of microalgae-derived carbon-MoS2 composite materials evaluated in half-cell system against lithium metal electrode secured capacity of 300 mA h/g after 880 cycles at current density of 5 A/g. We ascribe the excellent cycle performance to the unique structure of hollow spherical microalgae-derived carbon with rich inner structures and naturally doped nitrogen, which consequentially facilitate fast lithium ion transport. This kind of structuring strategy is advantageous in terms of utilizing naturally created structures of microbes with complexed inner organelles and trace of heteroatoms, not to mention in respect of producing value added material from biomass residues. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE INC
Issue Date
2019-11
Language
English
Article Type
Article
Citation

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.79, pp.106 - 114

ISSN
1226-086X
DOI
10.1016/j.jiec.2019.05.046
URI
http://hdl.handle.net/10203/268225
Appears in Collection
CBE-Journal Papers(저널논문)
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