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Carbon coated nano-LiTi2(PO4)3 electrode for non-aqueous hybrid supercapacitors

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Carbon coated nano-LiTi2(PO4)3 electrode for non-aqueous hybrid supercapacitors
นักวิจัย : Aravindan, Vanchiappan , Chuiling, W. , Reddy, M. V. , Rao, G. V. Subba , Chowdari, Bobba V. R. , Madhavi, Srinivasan
คำค้น : DRNTU::Engineering::Chemical engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Aravindan, V., Chuiling, W., Reddy, M. V., Rao, G. V. S., Chowdari, B. V. R., & Madhavi, S. (2012). Carbon coated nano-LiTi2(PO4)3 electrodes for non-aqueous hybrid supercapacitors. Physical chemistry chemical physics, 14(16), 5808-5814. , http://hdl.handle.net/10220/8161 , http://dx.doi.org/10.1039/C2CP40603A
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Physical chemistry chemical physics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Pechini type polymerizable complex decomposition method is employed to prepare LiTi2(PO4)3 at 1000 °C in air. High energy ball milling followed by carbon coating by the glucose-method yielded C-coated nano-LiTi2(PO4)3 (LTP) with a crystallite size of 80(±5) nm. The phase is characterized by X-ray diffraction, Rietveld refinement, thermogravimetry, SEM, HR-TEM and Raman spectra. Lithium cycling properties of LTP show that 1.75 moles of Li (121 mA h g−1 at 15 mA g−1 current) per formula unit can be reversibly cycled between 2 and 3.4 V vs. Li with 83% capacity retention after 70 cycles. Cyclic voltammograms (CV) reveal the two-phase reaction mechanism during Li insertion/extraction. A hybrid electrochemical supercapacitor (HEC) with LTP as negative electrode and activated carbon (AC) as positive electrode in non-aqueous electrolyte is studied by CV at various scan rates and by galvanostatic cycling at various current rates up to 1000 cycles in the range 0–3 V. Results show that the HEC delivers a maximum energy density of 14 W h kg−1 and a power density of 180 W kg−1.

บรรณานุกรม :
Aravindan, Vanchiappan , Chuiling, W. , Reddy, M. V. , Rao, G. V. Subba , Chowdari, Bobba V. R. , Madhavi, Srinivasan . (2555). Carbon coated nano-LiTi2(PO4)3 electrode for non-aqueous hybrid supercapacitors.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Aravindan, Vanchiappan , Chuiling, W. , Reddy, M. V. , Rao, G. V. Subba , Chowdari, Bobba V. R. , Madhavi, Srinivasan . 2555. "Carbon coated nano-LiTi2(PO4)3 electrode for non-aqueous hybrid supercapacitors".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Aravindan, Vanchiappan , Chuiling, W. , Reddy, M. V. , Rao, G. V. Subba , Chowdari, Bobba V. R. , Madhavi, Srinivasan . "Carbon coated nano-LiTi2(PO4)3 electrode for non-aqueous hybrid supercapacitors."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Aravindan, Vanchiappan , Chuiling, W. , Reddy, M. V. , Rao, G. V. Subba , Chowdari, Bobba V. R. , Madhavi, Srinivasan . Carbon coated nano-LiTi2(PO4)3 electrode for non-aqueous hybrid supercapacitors. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.