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RSC Advances
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DOI: 10.1039/C6RA18638F
Journal Name ARTICLE
and G-22 respectively, and the corresponding initial discharge used in lithium ion batteries especially in high voltage lithium
capacities were 135.3, 134.4, 134.0 and 133.3 mAh/g ion batteries.
respectively. The discharge capacities were near 134 mAh/g
for all coin cells, and no obvious difference was observed for
Acknowledgements
the cells with liquid and gel electrolyte.
The cycling performance was studied at 0.1 C and the
results were shown in fig.6b. After 60 cycles, the discharge
capacities were 129.5, 136.8, 134.4 and 134.0 mAh/g for liquid
and gel electrolyte of G-16, G-18 and G-22 respectively. The
capacities did not fade obviously for cells with liquid and gel
electrolyte. The columbic efficiency was simultaneously
monitored. The coulombic efficiency of the cells with gel
electrolyte of 2 wt% G-16 was quite like that of cells with liquid
electrolyte, i.e. the coulombic efficiency reached about 100%
The authors appreciate the supporting of Natural Science
Foundation of China (Grant No. 21434003), The National High
Technology Research and Development Program of China
(
863) (Grant No. 2015AA033801), the Fundamental Research
Funds for the Central Universities, and the Program for
Changjiang Scholars and Innovative Research Team in
University.
at the second cycle. However, the coulombic efficiency of the References
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activation energy slightly increased, gel electrolyte still showed
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The cells with gel electrolyte showed similar cycling
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2
2
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