Abstract
In this paper, poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) gel polymer electrolyte was fabricated via solvent casting method in order to improve the performance of the lithium-ion batteries. By comparing the physical and electrochemical properties of PVDF-HFP gel polymer electrolyte with three different proportions, the optimization of the PVDF-HFP gel polymer electrolyte was obtained: 10wt% PVDF-HFP - 80wt% tetrahydrofuran (THF) / acetone - 10wt% 1mol L-1 lithium perchlorate (LiClO4) in elthylene carbonate (EC) and diethyl carbonate (DEC). The optimized PVDF-HFP gel polymer electrolyte displayed a high conductivity of 1.0610-3 S cm-1 at room temperature, a high lithium transference number of 0.36 and a good thermal stability within 100C. Moreover, the discharge specific capacity was 135.1 mAh g-1, and the charge / discharge efficiency was 99.1% at 0.1C rate. Therefore, the fabricated PVDF-HFP gel polymer electrolyte was an effective gel polymer electrolyte to be applied on lithium-ion batteries.
| Original language | English |
|---|---|
| Article number | 012036 |
| Number of pages | 6 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 213 |
| Issue number | 1 |
| Early online date | 13 Jul 2017 |
| DOIs | |
| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | 2017 Global Conference on Polymer and Composite Materials, PCM 2017 - Guangzhou, China Duration: 23 May 2017 → 25 May 2017 |
Bibliographical note
Publisher Copyright:© Published under licence by IOP Publishing Ltd.
