Abstract
Organic-modified rectorite/poly(methyl methacrylate) (OREC/PMMA) gel polymer electrolyte, which is a nanocomposite gel polymer electrolyte (NGPE), was synthesized through in situ polymerization with free radical initiator in a solution with an organic plasticizer propylene carbonate (PC) as solvent. The electrical property of the NGPE was determined by the AC impedance. The interaction between the constituents in the NGPE was investigated by infrared spectroscopy. The thermal stability of the gel system was studied by differential scanning calorimetry and thermo-gravimetric analysis. The results show that the bulk impedance of the OREC/PMMA gel electrolyte decreases first and then increases with the increase of the OREC content. There is a maximum value of ionic conductivity for OREC/PMMA with 5% in mass OREC under different temperatures. There are reactions between OREC and PC, PMMA and LiClO4. The mechanism of the increase of conductivity of the OREC/PMMA gel electrolyte by adding OREC is discussed. The addition of OREC can enhance the thermal stability of the gel electrolyte.
| Original language | English |
|---|---|
| Pages (from-to) | 1666-1670 |
| Number of pages | 5 |
| Journal | Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society |
| Volume | 35 |
| Issue number | 12 |
| State | Published - Dec 2007 |
Keywords
- Conduction mechanism
- Ionic conductivity
- Nano-composite gel polymer electrolyte
- Thermo-stability