Spherical LiCoBO3 particles prepared via a molten salt method for lithium ion batteries

LiCoBO3/ketjen black composites were prepared at a moderate temperature of 450 degree C by a molten salt method using eutectic mixtures of LiCl and KCl as the reaction medium and ketjen black as a carbon source. The monoclinic structure and spherical morphology are respectively confirmed by X-ray di...

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Bibliographic Details
Published in:RSC advances 2016-01, Vol.6 (87), p.84439-84444
Main Authors: Tang, Anping, Zhong, Qianwen, Xu, Guorong, Song, Haishen
Format: Article
Language:English
Subjects:
Carbon
Cycles
Diffraction
Eutectic reactions
Fused salts
Lithium-ion batteries
Rechargeable batteries
Transmission electron microscopy
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Summary:LiCoBO3/ketjen black composites were prepared at a moderate temperature of 450 degree C by a molten salt method using eutectic mixtures of LiCl and KCl as the reaction medium and ketjen black as a carbon source. The monoclinic structure and spherical morphology are respectively confirmed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The electrochemical behavior was studied by galvanostatic charge-discharge and cyclic voltammetry tests. At a rate of C/20, the composite delivered an initial specific capacity of 48 mA h g-1 and a discharge specific capacity of 40 mA h g-1 at the 25th cycle, indicating a stable cycling performance. However, rate capability for the composite needs to be further improved.
ISSN:2046-2069
DOI:10.1039/c6ra15727k