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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2017.27.1.92

Characterization of Polyolefin Separator Support Membranes with Hydrophilic Coatings  

Park, Yun Hwan (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Nam, Sang Yong (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Publication Information
Membrane Journal / v.27, no.1, 2017 , pp. 92-103 More about this Journal
Abstract
In this study, electrochemical performance of the hydrophilized separator for the lithium ion battery is studied. The polyolefin based material used as the separator for the lithium ion battery is hydrophobic, and the electrolytic solution using a carbonate-based organic solvent is hydrophilic. Therefore, the polyolefin separator is hydrophilized using various hydrophilic polymers because lithium ion battery uses an aqueous electrolyte solution. In order to evaluate change of the coated separator, the performances of separator in terms of surface morphology, porosity and the wettability are investigated. Finally, the resistance and the ionic conductivity of separator coated with lithium ion are measured to evaluate the performance of lithium ion battery. Separator coated with PMVE shows good hydrophilicity and excellent ionic conductivity because the porosity of the separator is maintained. We can confirm that this property makes potential candidates for lithium ion battery.
Keywords
lithium ion battery; separator; hydrophilic coating; hydrophilicity; wettability;
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Times Cited By KSCI : 4  (Citation Analysis)
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