MoS sub(2)/C Multilayer Nanospheres as an Electrode Base for Lithium Power Sources

Multilayer nanospheres with alternating 2H-MoS sub(2) and C layers were studied as a cathode base for lithium power sources. Interesting hierarchical structure, synergetic effect, and the presence of defects as supplementary active sites, introduced by the additional annealing at 773 K in Ar atmosph...

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Bibliographic Details
Published in:Nanoscale research letters 2016-12, Vol.11 (1), p.1-8
Main Authors: Shyyko, Lyudmyla O, Kotsyubynsky, Volodymyr O, Budzulyak, Ivan M, Sagan, Piotr
Format: Article
Language:English
Subjects:
Annealing
Electrodes
Lithium
Multilayers
Nanospheres
Nanostructure
Power sources
Symmetry
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Summary:Multilayer nanospheres with alternating 2H-MoS sub(2) and C layers were studied as a cathode base for lithium power sources. Interesting hierarchical structure, synergetic effect, and the presence of defects as supplementary active sites, introduced by the additional annealing at 773 K in Ar atmosphere, have determined the conductivity, referred to symmetric hopping or random barrier model, and led to achieve the high values of specific capacity of 3700, 1390, and 790 A h kg super(-1) at currents 0.1, 0.3, and 0.5 C. Such unusual result was never reported before and could be explained by combining of the faradaic and non-faradaic accumulation processes within electrode material.
ISSN:1931-7573
1556-276X
DOI:10.1186/s11671-016-1451-4