Abstract
A novel gel polymer electrolyte (GPE) based on polyvinylidene fluoride (PVdF) and polyvinyl alcohol (PVA) with reliable electrochemical performance, mechanical robustness and safety features is prepared by a casting method. The physical, electrochemical and thermal properties of the casting membrane are characterized by scanning electron microscopy (SEM), atomic force microscope (AFM), thermal gravimetric analysis (TG), alternating-current (AC) impedance and charge-discharge techniques. The resulting polymer membrane shows a high ionic conductivity of 1.19 × 10-3 S/cm with 45.5 wt% of ionic liquid (IL) content while the cell assembled with PVdF/PVA/IL electrolyte delivers better electrochemical stability and higher discharge capacity than that without IL, and the thermal stability is obtained compared to conventional liquid electrolytes.
| Original language | English |
|---|---|
| Pages (from-to) | 130-138 |
| Number of pages | 9 |
| Journal | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
| Volume | 502 |
| DOIs | |
| State | Published - 5 Aug 2016 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Conductivity
- Gel polymerelectrolyte
- Ionic liquid
- Lithium ion battery
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