How Did Nickel Cobaltite Reinforced Carbon Microfibre Symmetrical Supercapacitor Fare Against A Commercial Supercapacitor?
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
How Did Nickel Cobaltite Reinforced Carbon Microfibre Symmetrical Supercapacitor Fare Against A Commercial Supercapacitor?
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| Creator |
Chiama, S.L.
Lim, H.N. Foo, C.Y. Pandikumar, A. Huang, N.M. |
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| Subject |
Electrodics and Electrocatalysis
Electrochemical Power Sources |
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| Description |
Various types of supercapacitor electrodes have been reported, which include carbon materials, metal
oxides, and conducting polymers. They have been subjected to electrochemical analyses using three- or
two-electrode systems. The closest system to a real commercial application is the two-electrode system.
Herein, we report the fabrication of a solid-state supercapacitor with nickel cobaltite reinforced carbon
microfibre electrodes using two electrode system. This supercapacitor, called the NICAF, was compared to
a commercial supercapacitor (KEMEX). The specific capacitances of NICAF and KEMEX were 124.21 F/g
and 44.49 F/g at 1 A/g, respectively. The capacitance retention of NICAF was 93% after 900 galvanostatic
charge/discharge cycles, whereas KEMEX was able to retain 99% after the same number of cycles. The
energy and power densities of NICAF were 8.32 Wh/kg and 489.25 W/kg, respectively, while those of
KEMEX were 2.07 Wh/kg and 409.45 W/kg, respectively. The life cycles of NICAF and KEMEX were verified
and compared at three temperature ranges: 0, 30, and 60 �C. KEMEX exhibited superior cycle stability,
with a capacitance retention of up to 99% in all temperature ranges, whereas NICAF performed optimally
by recording up to 97% retention at 0 �C. However, the increase in temperature up to 30 �C reduced the
stability to 93% and a further increase to 60 �C disrupted the stability test. Nevertheless, these extensive electrochemical analyses showed that the overall performance of NICAF was comparable to that of the commercially available KEMEX supercapacitor.
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| Publisher |
Elsevier B.V.
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| Date |
2017-06-24
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3226/1/060-2017.pdf
Chiama, S.L. and Lim, H.N. and Foo, C.Y. and Pandikumar, A. and Huang, N.M. (2017) How Did Nickel Cobaltite Reinforced Carbon Microfibre Symmetrical Supercapacitor Fare Against A Commercial Supercapacitor? Electrochimica Acta, 246. pp. 1141-1146. ISSN 0013-4686 |
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| Relation |
http://www.elsevier.com/loca te/ele cta cta
http://cecri.csircentral.net/3226/ |
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