| 학회 |
한국고분자학회 |
| 학술대회 |
2006년 봄 (04/06 ~ 04/07, 일산킨텍스) |
| 권호 |
31권 1호 |
| 발표분야 |
기능성 고분자 나노재료 |
| 제목 |
Templated sol-gel synthesis of vanadium oxide in a block copolymer electrolyte |
| 초록 |
Films consisting of a vanadium pentoxide (i.e. V2O5) phase formed within a rubbery block copolymer were developed towards nanocomposite cathodes for lithium rechargeable batteries. Nanocomposite films were prepared by sol-gel synthesis from vanadyl triisopropoxide precursor in poly(oligooxyethylene methacrylate)-block-poly(butyl methacrylate), POEM-b-PBMA. The in situ growth of amorphous V2O5 was confirmed by wide angle x-ray scattering (WAXS), x-ray photoelectron spectroscopy (XPS) and small angle x-ray scattering (SAXS). Scanning transmission electron microscopy (STEM) and differential scanning calorimetry (DSC) demonstrated the selective incorporation of vanadium oxide within the ion-conducting POEM domains, while the oxide morphology was revealed by TEM to be a filamentous network. Templated nanocomposite films incorporating up to 34 wt% (13 vol%) vanadium oxide were flexible and semi-transparent. |
| 저자 |
김종학1, Donald R. Sadoway2, Elsa A. Olivetti3, Anne M. Mayes2
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| 소속 |
1연세대, 2Department of Materials Science and Engineering, 3MIT |
| 키워드 |
block copolymer; nanocomposite; lithium batteries
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| E-Mail |
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