Introducing Dual Functional CNT Networks into CuO Nanomicrospheres toward Superior Electrode Materials for Lithium-Ion Batteries

An optimized nanostructure design of electrode materials for high-performance lithium-ion batteries was realized by introducing three-dimensional (3D) carbon nanotube (CNT) networks into transition metal oxide nanomicrospheres. A CuO−CNT composite was selected as a typical example of the optimized d...

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Bibliographic Details
Published in:Chemistry of materials 2008-06, Vol.20 (11), p.3617-3622
Main Authors: Zheng, Shu-Fa, Hu, Jin-Song, Zhong, Liang-Shu, Song, Wei-Guo, Wan, Li-Jun, Guo, Yu-Guo
Format: Article
Language:English
Subjects:
Composites (including Ceramic Composites, Polymer Composites, and Nanocomposites)
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Summary:An optimized nanostructure design of electrode materials for high-performance lithium-ion batteries was realized by introducing three-dimensional (3D) carbon nanotube (CNT) networks into transition metal oxide nanomicrospheres. A CuO−CNT composite was selected as a typical example of the optimized design. Self-assembled CuO and CuO−CNT nanomicrospheres have been successfully synthesized by a simple solution method and investigated with SEM, TEM, XRD, and electrochemical experiments. The CuO−CNT composite spheres exhibit remarkably enhanced cycling performance and rate performance compared with CuO spheres when being used as anode materials in lithium-ion batteries. It benefits from an as-formed 3D network of CNTs, which has dual functions, viz. a 3D current collector network and an elastic buffer.
ISSN:0897-4756
1520-5002
DOI:10.1021/cm7033855