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Unveiling TiNb2O7 as an insertion anode for lithium ion capacitors with high energy and power density

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Unveiling TiNb2O7 as an insertion anode for lithium ion capacitors with high energy and power density
นักวิจัย : Aravindan, Vanchiappan , Sundaramurthy, Jayaraman , Jain, Akshay , Kumar, Palaniswamy Suresh , Ling, Wong Chui , Ramakrishna, Seeram , Srinivasan, Madapusi P. , Madhavi, Srinivasan
คำค้น : DRNTU::Engineering::Materials::Metallic materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Aravindan, V., Sundaramurthy, J., Jain, A., Kumar, P. S., Ling, W. C., Ramakrishna, S., et al. (2014). Unveiling TiNb2O7 as an Insertion Anode for Lithium Ion Capacitors with High Energy and Power Density. ChemSusChem, 7(7), 1858-1863. , 1864-5631 , http://hdl.handle.net/10220/20491 , http://dx.doi.org/10.1002/cssc.201400157
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : ChemSusChem
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

This is the first report of the utilization of TiNb2O7 as an insertion-type anode in a lithium-ion hybrid electrochemical capacitor (Li-HEC) along with an activated carbon (AC) counter electrode derived from a coconut shell. A simple and scalable electrospinning technique is adopted to prepare one-dimensional TiNb2O7 nanofibers that can be characterized by XRD with Rietveld refinement, SEM, and TEM. The lithium insertion properties of such electrospun TiNb2O7 are evaluated in the half-cell configuration (Li/TiNb2O7) and it is found that the reversible intercalation of lithium (≈3.45 mol) is feasible with good capacity retention characteristics. The Li-HEC is constructed with an optimized mass loading based on the electrochemical performance of both the TiNb2O7 anode and AC counter electrode in nonaqueous media. The Li-HEC delivers very high energy and power densities of approximately 43 Wh kg−1 and 3 kW kg−1, respectively. Furthermore, the AC/TiNb2O7 Li-HEC delivers a good cyclability of 3000 cycles with about 84 % of the initial value.

บรรณานุกรม :
Aravindan, Vanchiappan , Sundaramurthy, Jayaraman , Jain, Akshay , Kumar, Palaniswamy Suresh , Ling, Wong Chui , Ramakrishna, Seeram , Srinivasan, Madapusi P. , Madhavi, Srinivasan . (2557). Unveiling TiNb2O7 as an insertion anode for lithium ion capacitors with high energy and power density.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Aravindan, Vanchiappan , Sundaramurthy, Jayaraman , Jain, Akshay , Kumar, Palaniswamy Suresh , Ling, Wong Chui , Ramakrishna, Seeram , Srinivasan, Madapusi P. , Madhavi, Srinivasan . 2557. "Unveiling TiNb2O7 as an insertion anode for lithium ion capacitors with high energy and power density".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Aravindan, Vanchiappan , Sundaramurthy, Jayaraman , Jain, Akshay , Kumar, Palaniswamy Suresh , Ling, Wong Chui , Ramakrishna, Seeram , Srinivasan, Madapusi P. , Madhavi, Srinivasan . "Unveiling TiNb2O7 as an insertion anode for lithium ion capacitors with high energy and power density."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Aravindan, Vanchiappan , Sundaramurthy, Jayaraman , Jain, Akshay , Kumar, Palaniswamy Suresh , Ling, Wong Chui , Ramakrishna, Seeram , Srinivasan, Madapusi P. , Madhavi, Srinivasan . Unveiling TiNb2O7 as an insertion anode for lithium ion capacitors with high energy and power density. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.