Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 5, Issue 7, Pages 7898-7902Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee22085g
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Funding
- Research Grant Council of the Hong Kong Special Administration Region [PolyU 5349/10E]
- Hong Kong Polytechnic University [1-BD08]
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We prepared amorphous carbon nanotubes decorated with hollow graphitic carbon nanospheres (ACNHGCNs) using a novel triple-coaxial electrospinning method and characterized the electrochemical performance of these ACNHGCNs as anode materials for lithium ion batteries (LIBs). The ACNHGCNs displayed a very high reversible specific capacity of similar to 969 mA h g(-1) at a current density of 50 mA g(-1), which is nearly 2.6 times the theoretical capacity of graphite (372 mA h g(-1)). The ACNHGCNs also showed a high volumetric capacity of similar to 1.42 A h cm(-3) and good cycling stability and outstanding rate capability. The prepared ACNHGCNs can be a promising alternative anode material used for high-energy, low-cost and environmentally friendly lithium ion batteries.
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