dc.contributor.authorTang, Yuxin
dc.contributor.authorZhang, Yanyan
dc.contributor.authorDeng, Jiyang
dc.contributor.authorQi, Dianpeng
dc.contributor.authorLeow, Wan Ru
dc.contributor.authorWei, Jiaqi
dc.contributor.authorYin, Shengyan
dc.contributor.authorDong, Zhili
dc.contributor.authorYazami, Rachid
dc.contributor.authorChen, Zhong
dc.contributor.authorChen, Xiaodong
dc.date.accessioned2014-09-15T08:48:10Z
dc.date.available2014-09-15T08:48:10Z
dc.date.copyright2014en_US
dc.date.issued2014
dc.identifier.citationTang, Y., Zhang, Y., Deng, J., Qi, D., Leow, W. R., Wei, J., et al. (2014). Unravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteries. Angewandte chemie international edition, in press.en_US
dc.identifier.issn1433-7851en_US
dc.identifier.urihttp://hdl.handle.net/10220/20896
dc.description.abstractThe fundamental understanding of the relationship between the nanostructure of an electrode and its electrochemical performance is crucial for achieving high-performance lithium-ion batteries (LIBs). In this work, the relationship between the nanotubular aspect ratio and electrochemical performance of LIBs is elucidated for the first time. The stirring hydrothermal method was used to control the aspect ratio of viscous titanate nanotubes, which were used to fabricate additive-free TiO2-based electrode materials. We found that the battery performance at high charging/discharging rates is dramatically boosted when the aspect ratio is increased, due to the optimization of electronic/ionic transport properties within the electrode materials. The proof-of-concept LIBs comprising nanotubes with an aspect ratio of 265 can retain more than 86 % of their initial capacity over 6000 cycles at a high rate of 30 C. Such devices with supercapacitor-like rate performance and battery-like capacity herald a new paradigm for energy storage systems.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesAngewandte chemie international editionen_US
dc.rights© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en_US
dc.subjectDRNTU::Science::Chemistry
dc.titleUnravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteriesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1002/anie.201406719


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