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Lee, Sang-Young
Energy Soft-Materials Lab.
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Close-packed poly(methyl methacrylate) nanoparticle arrays-coated polyethylene separators for high-power lithium-ion polymer batteries

Author(s)
Park, Jang-HoonPark, WoongKim, Jong HunRyoo, DongjoKim, Hoon SikJeong, Yeon UkKim, Dong-WonLee, Sang-Young
Issued Date
2011-08
DOI
10.1016/j.jpowsour.2010.09.102
URI
https://scholarworks.unist.ac.kr/handle/201301/12227
Fulltext
http://www.sciencedirect.com/science/article/pii/S037877531001709X
Citation
JOURNAL OF POWER SOURCES, v.196, no.16, pp.7035 - 7038
Abstract
In an endeavor to improve the discharge C-rate performance of lithium-ion polymer batteries targeting high-power applications, we develop a novel gel polymer electrolyte-coated separator, which is based on introduction of close-packed poly(methyl methacrylate)(PMMA) nanoparticle arrays onto a polyethylene (PE) separator. In contrast to a conventional PMMA dense coating layer, a noticeable feature of the PMMA nanoparticle array coating layer is its highly ordered nanoporous structure, i.e. well-connected interstitial voids formed between the close-packed PMMA nanoparticles. This unique morphology allows for not only favorable liquid electrolyte wettability but also facile ionic conduction of the PMMA nanoparticle arrays-coated separator, both of which play crucial roles in improving the discharge C-rate performance of cells assembled with the separator. (C) 2010 Elsevier B.V. All rights reserved
Publisher
ELSEVIER SCIENCE BV
ISSN
0378-7753

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