Paper Title:
Research on Lithium Ion Battery Material LiCoO2 for Hybrid Supercapacitor
  Abstract

The electrochemical performance of capacitor was studied with LiCoO2/AC as composite cathode and activated carbon (AC) as anode, in 1.0 mol/L LiPF6/EC+DMC electrolyte. Cyclic Voltammetary, Constant-Current Charge and Discharge, Electrochemical Impedance Spectrum (EIS) and Leakage Current Test were tested to study the characteristics of supercapacitors. The results illustrate that recharging voltage of hybrid supercapacitor can reach to 3.0 V and show good capacitance characteristics. The supercapacitor can rapidly charge and discharge and show good cycling performance. There is a great effect to the performance of the capacitors by adopting different proportional composite electrode. When the ratio of composite electrode is 6:4, we get maximum symmetrical Cyclic Voltammetary and short charge-discharge time only 26.4min; When the ratio is 7:3, the minimum AC impedance of 26.2W can be attained and least leakage current is only 19.92mA/g; When the ratio is 5:5, the best first specific capacity can reach to 70.17F/g but a lower capacity retention rate is 74.86%.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Energy Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
1565-1568
DOI
10.4028/www.scientific.net/AMR.287-290.1565
Citation
S. L. Zhang, L. H. Ma, X. G. Li, Y. H. Song, W. Li, "Research on Lithium Ion Battery Material LiCoO2 for Hybrid Supercapacitor", Advanced Materials Research, Vols. 287-290, pp. 1565-1568, 2011
Online since
July 2011
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Price
$32.00
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