| 학회 | 한국공업화학회 |
| 학술대회 | 2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 | 19권 1호 |
| 발표분야 | 전기화학_포스터 |
| 제목 | Preparation and electrochemical properties of partially oxidized polyacrylonitrile nanofibrous membrane as a heat resistant separator for lithium ion batteries |
| 초록 | A separator plays an important role to achieve good battery performance with stable cycle life, high energy density, high rate capability, and safety in lithium ion batteries (LIBs). Currently, polyolefin microporous membranes are commonly used as the separator in commercial LIBs due to their good chemical stability and high mechanical strength. However, some of their intrinsic properties, such as low porosity and poor wettability with polar liquid electrolyte, which affect cell resistance, energy density, and rate capability of LIB, should be improved. One of the effective approaches to overcome these limitations is to fabricate a separator using a thermally stable polymer by electrospinning technique. In this work, we have prepared polyacrylonitrile (PAN) nanofibrous membranes by electrospinning technique and those were converted to partially oxidized PAN (oxy-PAN) by heating at 230 °C in air for different time periods. Thus prepared oxy-PAN membranes showed good electrolyte wettability, high ionic conductivity, uniform tensile strength, excellent thermal stability and stable cycle performance in LIBs. |
| 저자 | 유형민1, 이종화2, James Manuel1, 김미소1, Ying Liu1, Ghanshyam S Chauhan1, 박원호2, 안주현1 |
| 소속 | 1경상대, 2충남대 |
| 키워드 | Lithium ion batteries; polyacrylonitile; membrane; seperator |
