Browse > Article

Preparation and Characterization of PVdF Microporous Membranes with PEG Additive for Rechargeble Battery  

Nam, Sang-Yong (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Jeong, Mi-Ae (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Yu, Dae-Hyun (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Koh, Mi-Jin (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Rhim, Ji-Won (Department of Chemical Engineering, Hannam University)
Byun, Hong-Sik (Department of Chemical System Engineering, Keimyung University)
Seo, Myung-Su (Special Battery Division Research Institute R&D Team, Bexel Corporation)
Publication Information
Membrane Journal / v.18, no.1, 2008 , pp. 84-93 More about this Journal
Abstract
Poly(vinylidene fluoride) has received much attention in the last several years for the lithium secondary batteries. In this study, to enhance the porosity, PVdF was prepared by phase inversion method using as an additive, PEG (poly(ethylene glycol)), with N,N-dimethylformamid as a solvent. The pores are generated during the solvent and non-solvent exchange process in the coagulation bath filled with non-solvent (distilled water). The surface and cross-section of the membranes were observed with a scanning electron microscopy (SEM). The mechanical property of the membrane was determined by using an universal testing machine (UTM) and thermal property was verified by heat shrinkage. Uniformed sponge structure of PVdF-PEG membrane for the lithium secondary batteries was prepared with 10 wt% of PEG concentration in the PVdF-PEG solution. Porosity, elongation and tensile strengh of the membrane were 87%, 75.45%, and 275. 27 MPa respectively.
Keywords
poly(vinylidene fluoride); separator; poly(ethylene glycol); battery; porosity;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 A. Du Pasquier, P. C. Warren, D. Culver, A. S. Gozdz, G. G. Amatucci, and J. M. Tarascon, 'Plastic PVDF-HFP electrolyte laminates prepared by a phase-inversion process', Solid State Ionics, 135, 249 (2000)   DOI   ScienceOn
2 D. H. Yu, M. A. Jeong, J. W. Rhim, H. S. Byun, C. H. Jeong, Y. M. Lee, M. S. Seo, and S. Y. Nam, 'Preparation and Characterization of Microporous PVdF Membrane for Li-ion Rechargeable battery, Membrane J., 17(3), 233 (2007)   과학기술학회마을
3 W. Pu, X. He, L. Wang, C. Jiang, and C. Wan, 'Preparation of PVdF-HFP microporous membrane for Li-ion batteries by phase inversion', J. Membr. Sci., 272, 11 (2006)   DOI   ScienceOn
4 G. G. Kumar, P. Kim, K. S. Nahm, and R. N. Elizabeth, 'Structural characterization of PVdF-HFP/PEG/$Al_2O_3$ proton conduction membarnes for fuel cells', J. Membr. Sci., 393, 126 (2007)
5 Y. M. Lee, C. H. Lee, H. B. Park, J. W. Rhim, S. Y. Ha, J. S. Kang, and S. Y. Nam, 'Separation for Li-Ion Secondary Batteries', Membrane J., 14(4), 263 (2004)
6 Q. Shi, M. Yu, X. Zhou, Y. Yan, and C. Wan, 'Structure and performance of porous polymer electrolytes based on P(VdF-HFP) for lithium batteries', J. Power Sources, 103, 286 (2002)   DOI   ScienceOn
7 W.-H. Seol, Y. M. Lee, and J.-K. Park, 'Preparation and characterization of new microporous stretched membrane for lithium rechargeable battery', J. Power Sources, 163(1), 247 (2006)   DOI   ScienceOn
8 A. M. Stephan, K. S. Nahm, M. A. Nathan, G. Ravi, and J. Wilson, 'Nanofiller incorporated PVdF-HFP composite electrolytes for lithium batteries', J. Power Sources, 159(2), 1316 (2006)   DOI   ScienceOn
9 J. Y. Song, Y. Y. Wang, and C. C. Wan, 'Conductivity study of porous plasticized polymer electrolytes based on poly(vinylidene fluoride), a comparison with poly propylene separators', J. Electrochem Soc., 147, 3219 (2000)   DOI   ScienceOn
10 A. Magistris, P. Mustarelli, and E. Quartarone, 'Poly(vinylidene fluoride)-based porous electrolytes', Electrochim Acta., 46, 1635 (2001)   DOI   ScienceOn
11 K. Gao, X. Hu, C. Dai, and T. Yi, 'Crystal structures of electrospun PVdF membranes and its separator application for rechargeable lithium metal cells', Materials Science and Engineering B, 10840 (2006)
12 D. H. Yu, M. A. Jeong, J. W. Rhim, H. S. Byun, H. O. Yoo, J. M. Kim, M. S. Seo, and S. Y. Nam, 'Preparation and Characterization of PVdFHFP Microporous Membranes for Li-ion rechargeable Battery', Membrane J., 17(4), 359 (2007)   과학기술학회마을
13 Y. J. Hwang, S. K. Jeong, K. S. Nahm, and A. M. Stephan, 'Electrochemical studies on poly(vinylidene fluoride-hexafluoropropylene) membranes prepared by phase inversion method', Eur. Polym. J., 43, 65 (2007)   DOI   ScienceOn
14 A. Magistris, P. Mustarelli, F. Parazzoli, E. Quartarone, P. Piaggio, and A. Bottino, 'Structure, porosity and conductivity of PVdF films for polymer electrolytes', J. Power Sourecs, 97-98, 657 (2001)   DOI   ScienceOn