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Unravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteries

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Unravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteries
นักวิจัย : Tang, Yuxin , Zhang, Yanyan , Deng, Jiyang , Qi, Dianpeng , Leow, Wan Ru , Wei, Jiaqi , Yin, Shengyan , Dong, Zhili , Yazami, Rachid , Chen, Zhong , Chen, Xiaodong
คำค้น : DRNTU::Science::Chemistry
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Tang, 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. , 1433-7851 , http://hdl.handle.net/10220/20896 , http://dx.doi.org/10.1002/anie.201406719
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Angewandte chemie international edition
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

The 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.

บรรณานุกรม :
Tang, Yuxin , Zhang, Yanyan , Deng, Jiyang , Qi, Dianpeng , Leow, Wan Ru , Wei, Jiaqi , Yin, Shengyan , Dong, Zhili , Yazami, Rachid , Chen, Zhong , Chen, Xiaodong . (2557). Unravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteries.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Tang, Yuxin , Zhang, Yanyan , Deng, Jiyang , Qi, Dianpeng , Leow, Wan Ru , Wei, Jiaqi , Yin, Shengyan , Dong, Zhili , Yazami, Rachid , Chen, Zhong , Chen, Xiaodong . 2557. "Unravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteries".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Tang, Yuxin , Zhang, Yanyan , Deng, Jiyang , Qi, Dianpeng , Leow, Wan Ru , Wei, Jiaqi , Yin, Shengyan , Dong, Zhili , Yazami, Rachid , Chen, Zhong , Chen, Xiaodong . "Unravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteries."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Tang, Yuxin , Zhang, Yanyan , Deng, Jiyang , Qi, Dianpeng , Leow, Wan Ru , Wei, Jiaqi , Yin, Shengyan , Dong, Zhili , Yazami, Rachid , Chen, Zhong , Chen, Xiaodong . Unravelling the correlation between the aspect ratio of nanotubular structures and their electrochemical performance to achieve high-rate and long-life lithium-ion batteries. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.