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Title: Activated carbons derived from coconut shells as high energy density cathode material for Li-ion capacitors
Authors: Jain, Akshay
Aravindan, Vanchiappan
Jayaraman, Sundaramurthy
Kumar, Palaniswamy Suresh
Balasubramanian, Rajasekhar
Ramakrishna, Seeram
Madhavi, Srinivasan
Srinivasan, M. P.
Keywords: DRNTU::Engineering::Materials
Issue Date: 2013
Source: Jain, A., Aravindan, V., Jayaraman, S., Kumar, P. S., Balasubramanian, R., Ramakrishna, S., et al. (2013). Activated carbons derived from coconut shells as high energy density cathode material for Li-ion capacitors. Scientific reports, 3, 1-6.
Series/Report no.: Scientific reports
Abstract: In this manuscript, a dramatic increase in the energy density of ~ 69 Wh kg−1 and an extraordinary cycleability ~ 2000 cycles of the Li-ion hybrid electrochemical capacitors (Li-HEC) is achieved by employing tailored activated carbon (AC) of ~ 60% mesoporosity derived from coconut shells (CS). The AC is obtained by both physical and chemical hydrothermal carbonization activation process, and compared to the commercial AC powders (CAC) in terms of the supercapacitance performance in single electrode configuration vs. Li. The Li-HEC is fabricated with commercially available Li4Ti5O12 anode and the coconut shell derived AC as cathode in non-aqueous medium. The present research provides a new routine for the development of high energy density Li-HEC that employs a mesoporous carbonaceous electrode derived from bio-mass precursors.
ISSN: 2045-2322
DOI: 10.1038/srep03002
Rights: © 2013 Nature Publishing Group. This paper was published in Scientific Reports and is made available as an electronic reprint (preprint) with permission of Nature Publishing Group. The paper can be found at the following official DOI: [].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ERI@N Journal Articles
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