| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.225 |
| 발표분야 | 기능성 고분자 |
| 제목 | Ion Conducting Behaviors of Poly(ethylene oxide) Composites Containing Montmorillonite |
| 초록 | Rechargeable lithium-ion batteries are an important component in portable electronic devices because of desirable characteristics that include high energy density, low weight, and excellent cycle performance. Composite polymer electrolytes are viable candidates for rechargeable batteries because they possess desirable properties of both liquid and solid electrolytes. It is expected that the conductivities of lithium-containing polymer-clay nanocomposites are enhanced over synthetic polymer single-ion conductors because only cations are mobile in these materials. The preparation is simpler, they are self-supporting, and they generally have excellent mechanical properties. We have prepared a series of nanocomposites containing Poly(ethylene oxide) (PEO) intercalated in the layers of synthetic clay of Montmorillonite (MMT). The synthetic clay electrolytes are prepared with lithium exchanged MMT dispersed in an organic carbonate type solvent, a various molecular weight of PEO and Li salts. Ideally, the clay provides a mechanically stable structure, while the lithium cations associated with the large anionic clay platelet become highly mobile. Li-MMT was prepared by cation exchange reaction of Na-MMT. The influence of MMT on ionic conductivity as a function of temperature were determined by the frequency response analyzer (FRA), DSC, and FT-IR. Furthermore, the mechanical properties of nanocomposite were investigated. |
| 저자 | 김 석, 강 진영, 이 재락, 류 호진, 박 수진 |
| 소속 | 한국화학(연) |
| 키워드 | Conducting Behaviors; Composite Electrolytes; Poly(ethylene oxide); Montmorillonite |
