| 학회 | 한국재료학회 |
| 학술대회 | 2013년 가을 (11/06 ~ 11/08, 제주롯데호텔) |
| 권호 | 19권 2호 |
| 발표분야 | C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 | Electrochemical Characteristics of the Al2O3 ceramic layer and PVdF nono-fiber layer separator based on PE separator for Li-ion batteries |
| 초록 | With an aim to enhance thermal stability and electrolyte wetting of polyethylene porous separator, Al2O3 nano-powder layer and electro-spun PVdF nano-fiber layer were successively formed on both sides of polyethylene separator. The mutli-layered nano-fiber/ceramic composite separator exhibited a shrinkage of only 7.8% in area at 180 ℃, and did not show melt down up to 200 ℃. The electrolyte uptake of the composite separator was increased with the thickness of the nano-fiber layer; for the 8 m thick nano-fiber layer, the electrolyte uptake was 2.5 times larger than that of pristine polyethylene separator. Both discharge capacity and cycle life were improved with the thickness of PVdF nano-fiber layer owing to an increased electrolyte uptake. |
| 저자 | 조혜담1, 장덕례1, 문호성2 |
| 소속 | 1한국생산기술(연), 2세방산업 |
| 키워드 | Lithium Ion Battery; seperator; PVdF nono fiber; Al2O3 cermic layer |
