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http://dx.doi.org/10.5229/JKES.2008.11.2.125

Cycling Performances of Lithium-Ion Polymer Cells Assembled with Surface-Modified Separators Containing Aluminum Fluoride  

Eo, Seung-Min (Department of Applied Chemistry, Hanbat National University)
Kim, Dong-Won (Department of Applied Chemistry, Hanbat National University)
Publication Information
Journal of the Korean Electrochemical Society / v.11, no.2, 2008 , pp. 125-129 More about this Journal
Abstract
Rechargeable lithium-ion polymer batteries have been considered to be next-generation power sources for portable electronic devices and electric vehicles. In this work, we tried to improve the cycling performances of lithium-ion polymer cells by coating aluminum fluoride and acrylonitrile-methyl methacrylate copolymer to the polyethylene separator. It was found that the addition of aluminum fluoride to the surface-modified separator reduced the interfacial resistances and thus the cell exhibited a less capacity fading and better high rate performance. The cell showed an initial discharge capacity of 150 mAh/g and good capacity retention at 0.5 C rate.
Keywords
Aluminum fluoride; Surface-modified separator; Lithium-ion polymer cell; Cycling performance;
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