期刊
CERAMICS INTERNATIONAL
卷 39, 期 8, 页码 9659-9663出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.05.088
关键词
Nanocomposites; Ionic conductivity; Aerogel; Lithium ion battery
资金
- National Research Foundation of Korea (NRF)
- Korean government (MEST) [2011-0015512]
- Inha University Research Grant
- National Research Foundation of Korea [2011-0015512] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Nanocomposite solid-polymer electrolytes were fabricated using polyethylene oxide (PEO), polyvinylidene fluoride (PVDF), LiClO4 and silica aerogel, with the aim of improving lithium ion conductivity and thermal stability. The effects of the PEO:PVDF ratio, polymer:Li-salt ratio, and silica aerogel content on the electrical conductivity of the solid-polymer electrolytes were examined. Highest lithium ion conductivity of 1.70 x 10(-4) S/cm was obtained at 30 degrees C in the SPE-2 sample with PEO:PVDF= 3:1 and polymer:Li-salt= 6:1. XRD and FT-IR analysis showed that the observed phenomenon could be explained by the degree of crystallinity of the polymer electrolyte and by the dissociation degree of Li-salt. 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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