Abstract
Utilizing polymer electrospinning technology, novel electrolyte membranes based on poly(vinylidene fluoride) (PVDF)/ organomodified clay (OC)/tripropyleneglycol diacrylate (TPGDA) composite nanofibers with a diameter of 100-400 nm were fabricated for application in lithium batteries. Ultraviolet photo-polymerization of electrospun PVDF/OC/TPGDA nanofibers generated chemically crosslinked TPGDA-grafted PVDF/OC nanofibers exhibiting robust mechanical and electrochemical properties. The prepared fibrous PVDF/OC/TPGDA electrolytes were characterized in terms of morphology, crystallinity, electrochemical stability, ionic conductivity and cell cycleability. Based on differential scanning calorimetry analysis, the crystallinity of PVDF decreased by ca 10% on employing the OC and TPGDA. Compared with pure PVDF film-based electrolyte membranes, the TPGDA-and OC-modified PVDF electrolytemembranes exhibited improvedmechanical properties and various electrochemical properties. The OC-and TPGDA-modified microporous membranes are promising candidates for overcoming the drawbacks of the lower mechanical stability of fibrous-type electrolytes with further improvement of electrochemical performance.
| Original language | English |
|---|---|
| Pages (from-to) | 249-255 |
| Number of pages | 7 |
| Journal | Polymer International |
| Volume | 59 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2010.02 |
Keywords
- Ionic conductivity
- Microporous polymer electrolyte
- Organoclay
- PVDF
- Tripropyleneglycol diacrylate
Quacquarelli Symonds(QS) Subject Topics
- Materials Science
- Engineering - Petroleum
- Chemistry
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