期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 13, 期 12, 页码 7865-7869出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2013.8107
关键词
Composite Polymer Electrolytes; PEO; PAN; Nano-Sized Al2O3; Ionic Conductivity
类别
资金
- Converging Research Center Program through the Ministry of Education, Science and Technology, Korea [2012K001261]
- Basic Science Research Program through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2011-0009007]
- National Research Foundation of Korea [2010-50184, 2011-0009007] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this paper, composite polymer electrolytes were prepared by a blend of poly(ethylene oxide) (PEO) and poly(acrylonitrile) (PAN) as a polymer matrix, ethylene carbonate as a plasticizer, LiClO4 as a salt, and by containing a different content of nano-sized Al2O3. The composite films were prepared by using the solution casting method. The crystallinity and ionic conductivity of the polymer electrolytes was investigated using X-ray diffraction (XRD) and AC impedance method, respectively. The morphology of composite polymer electrolyte film was analyzed by SEM method. From the experimental results, by increasing the Al2O3 content, the crystallinity of PEO was reduced, and the ionic conductivity was increased. In particular, by a doping of 15 wt.% Al2O3 in PEO/PAN polymer blend, the CPEs showed the superior ionic conductivity However, when Al2O3 content exceeds 15 wt.%, the ionic conductivity was decreased. From the surface morphology, it was concluded that the ionic conductivity was decreased because the CPEs showed a heterogenous morphology due to immiscibility or aggregation of the ceramic filler within the polymer matrix.
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