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Studies on the Secondary Battery Application of the Surface Fluorinated Microporous PE Separator Membranes  

Byun, Hong-Sik (Department of Chemical System Engineering, Keimyung University)
Kim, Dae-Hoon (Department of Chemical Engineering, Hannam University)
Cho, Hyun-Il (Department of Chemical Engineering, Hannam University)
Lee, Byung-Seong (Department of Chemical Engineering, Hannam University)
Hong, Byung-Pyo (Department of Chemical System Engineering, Keimyung University)
Lee, Sang-Yun (Research Institute of Gas Analytical Science)
Nam, Sang-Yong (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Engineering Research Institute, Gyeongsang National University)
Seo, Myung-Su (Special Battery Division Research Institute R&D Team, Bexel Corporation)
Rhim, Ji-Won (Department of Chemical Engineering, Hannam University)
Publication Information
Membrane Journal / v.18, no.1, 2008 , pp. 75-83 More about this Journal
Abstract
In this research, the research for enhancing the stability at the mechanical strength and thermal stability and high power through the Direct Fluorination of the Polyethylene (PE, Asahi) for secondary battery was conducted. The surface of according to the fluorine gas exposure time and constructional change were observed through the scanning electron microscope image, and the contact angle. The mechanical property was confirmed through the tensile strength and surface hydrophilic property experiment. Charge and discharge experiment, the lifetime property, and the overcharge test were performed in order to confirm the electrochemical characteristic of produced and we confirmed at the high power that the stability about a temperature was improved.
Keywords
polyethylene; Li-ion battery; direct fluorination; separator; half cell;
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