期刊
RSC ADVANCES
卷 4, 期 44, 页码 22989-22994出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra01259c
关键词
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资金
- Chinese National Science Funds [51202094]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Natural Science Foundation of Jiangsu Education Committee of China [12KJB150010]
- Cambridge Overseas Trust
TiO2-B nanowires with a high tap density, containing structural lattice voids within each nanowire, are prepared via a tailored hydrothermal-calcination route. These internal voids, formed by controlling the calcination temperature as clusters of vacant sites enable fast transport of lithium-ions within the lattice material, lead to enhanced high-rate performance of a TiO2-B nanowire based electrode in a Li-ion battery. At a current density of 2000 mA g(-1), a high value of discharge capacity at 129.0 mA h g(-1) is retained after 80 cycles. Our results indicate that electrodes based on this nanowire material with 'lattice-void' structure and high tap density, meet the challenge of achieving a high-rate performance and a high volumetric density in Li-ion batteries.
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