Close-packed poly(methyl methacrylate) nanoparticle arrays-coated polyethylene separators for high-power lithium-ion polymer batteries
- Authors
- Park, Jang-Hoon; Park, Woong; Kim, Jong Hun; Ryoo, Dongjo; Kim, Hoon Sik; Jeong, Yeon Uk; Kim, Dong-Won; Lee, Sang-Young
- Issue Date
- Aug-2011
- Publisher
- ELSEVIER
- Keywords
- Lithium-ion polymer batteries; Separators; Gel polymer electrolytes; PMMA; Nanoparticle arrays; High-power
- Citation
- JOURNAL OF POWER SOURCES, v.196, no.16, pp.7035 - 7038
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 196
- Number
- 16
- Start Page
- 7035
- End Page
- 7038
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/167895
- DOI
- 10.1016/j.jpowsour.2010.09.102
- ISSN
- 0378-7753
- 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.
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