Browse > Article
http://dx.doi.org/10.5229/JKES.2010.13.2.110

Electrochemical Performance of Lithium Sulfur Batteries with Plasticized Polymer Electrolytes based on P(VdF-co-HFP)  

Park, Jeong-Ho (Division of Applied Chemistry and Biotechnology, Hanbat National University)
Yeo, Sang-Yeob (Division of Applied Chemistry and Biotechnology, Hanbat National University)
Park, Jung-Ki (Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science Engineering)
Lee, Yong-Min (Division of Applied Chemistry and Biotechnology, Hanbat National University)
Publication Information
Journal of the Korean Electrochemical Society / v.13, no.2, 2010 , pp. 110-115 More about this Journal
Abstract
The plasticized polymer electrolytes based on polyvinylidene fluoride-co-hexafluoropropylene (P(VdF-co-HFP)), tetra (ethylene glycol) dimethyl ether (TEGDME), and lithium perchlorate ($LiClO_4$) are prepared for the lithium sulfur batteries by solution casting with a doctor-blade. The polymer electrolyte with EO : Li ratio of 16 : 1 shows the maximum ionic conductivity, $6.5\;{\times}\;10^{-4}\;S/cm$ at room temperature. To understand the effect of the salt concentration on the electrochemical performance, the polymer electrolytes are characterized using electrochemical impedance spectroscopy (EIS), infrared spectroscopy (IR), viscometer, and differential scanning calorimeter (DSC). The optimum concentration and mobility of the charge carriers could lead to enhance the utilization of sulfur active materials and the cyclability of the Li/S unit cell.
Keywords
Lithium sulfur batteries; Plasticized polymer electrolytes; P (VdF-co-HFP); Tetra (ethylene glycol) dimethyl ether; Salt concentration; Charge-discharge;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. Eichinger and J. Besenhard, ‘High energy density lithium cells: part II. cathodes and complete cells’ J. Electroanal. Chem.,72, 1 (1976).   DOI
2 R. D. Rauh, K. M. Abraham, G. F. Pearson, S. K. Surprenant, and S. B., Brummer, ‘A lithium/dissolved sulfur battery with an organic electrolyte’ J. Electrochem. Soc., 126, 523 (1979).   DOI
3 H. Yamin and E. Peled, ‘Electrochemistry of a nonaqueous lithium/sulfur cell’ J. Power Sources, 9, 281 (1983).   DOI
4 H. Yamin, J. Penciner, A. Gorenshtain, M. Elam, and E. Peled, ‘The electrochemical behavior of polysulfides in tetrahydrofuran’ J. Power Sources, 14, 129 (1985).   DOI
5 F. Croce, F. Gerace, G. Dautzemberg, S. Passerini, G. B. Appetecchi, and B. Scrosati, ‘Synthesis and characterization of highly conducting gel electrolytes’ Electrochim. Acta, 39, 2187 (1994).   DOI
6 D. Peramunage, D. M. Pasquarielli, and K. M. Abraham, ‘Polyacrylonitrile-based electrolytes with ternary solvent mixtures as plasticizers’ J. Electrochem. Soc., 142, 1789 (1995).   DOI
7 Y. M. Lee, N. -S, Choi, J. H. Park, and J. -K. Park, ‘Electrochemical performance of lithium sulfur batteries with protected Li anodes’ J. Power Sources, 119, 964 (2003).   DOI
8 I. I. Olsen and R. Koksband, ‘A temperature study of the ionic conductivity of a hybrid polymer electrolyte’ J. Electrochem. Soc., 143(2), 570 (1996).   DOI
9 H. -T. Kim, Proc. of’ 01 Korean Institute of Chemical Engineering Fall Meeting, 7(2), 4658 (2001).
10 H. Yamin, A. Gorenshtain, J. Penciner, Y. Sternberg, and E. Peled, ‘Lithium sulfur battery’ J. Electrochem. Soc., 135, 1045 (1988).   DOI
11 M. -Y Chu, “Rechargeable positive electrodes” US Patent No. 5,814,420.
12 D. Marmorstein, T. H. Yu, K. A. Striebel. F. R. McLarnon, J. Hou, and E. J. Chairns, ‘Electrochemical performance of lithium/sulfur cells with three different polymer electrolytes’ J. Power Sources, 89, 219 (2000).   DOI