| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.9 |
| 발표분야 |
고분자 |
| 제목 |
Scalable approach to porous PVDF-HFP thin film as separator for lithium ion battery |
| 초록 |
Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) membranes have been receiving wide attention because of their diversified range of applications in various fields such as separators for energy storage devices, filtration as well as separation processes, and templates for microfabrication. The production of PVDF-HFP membrane with highly controlled porosity in a scalable and cost-effective way is crucially necessary. In this work, we report on the fabrication of PVDF-HFP membrane by facile single-step solution-immersion dip-coating method. Herein, the porous membrane is generated based on the concept of evaporation-induce phase separation of a ternary solution which composes of polymer in a mixture of acetone and water as solvent/nonsolvent pair. The porous film showed the multi-layered honeycomb-like cellular structure. The structural morphology and porosity of the membrane can be regulated by changing solution composition or drying conditions. Gel polymer electrolytes composed of PVDF-HFP microporous membrane incorporating BMIMTFSI:LiTFSI are characterized as the electrolytes in lithium-ion batteries. |
| 저자 |
Reddicherla Umapathi, 부반티엔, 최호석
|
| 소속 |
충남대 |
| 키워드 |
고분자합성; 고분자전자/에너지/광학재료
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
