Abstract
Lithiated Nafion 112 ionomer was characterized by FT-IR spectroscopy, AC impedance, and cyclic voltammetry. The ionomer swollen with mixed solvents of propylene carbonate (PC) and ethylene carbonate shows ionic conductivity of 8.18 × 10-5 S cm-1 at 25°C and good electrochemical stability to allow operation in Li/ionomer/ LiCoO2 cells. The discharge capacity of the first cycle is 126 mAh g-1. Significant capacity loss occurs during cycling due to the presence of PC. AC impedance shows that the passive layer formed at the Li/ionomer interface dominates the cycling performance of the cell.
| Original language | English |
|---|---|
| Pages (from-to) | 1211-1214 |
| Number of pages | 4 |
| Journal | Journal of Applied Electrochemistry |
| Volume | 34 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2004 |
Keywords
- Ionomer
- Lithium batteries
- Nafion membrane
- Polymer electrolyte
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