| 학회 | 한국공업화학회 |
| 학술대회 | 2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 | 8권 2호 |
| 발표분야 | 고분자 |
| 제목 | Efficiency of Li Ion Conduction in Fast Cationic Transport Process |
| 초록 | A new solid polymer electrolyte (SPE) composed of poly (vinyl alcohol) and lithium trifluoromethane sulfonate (LiCF3SO3) was prepared to observe the change of the crystallinity of SPEs with wide range of salt concentration and decoupled ion transportation. From ac impedance spectroscopy, FTIR, XRD, and AFM results, we concluded that effective ‘fast cationic transport process’ was formed at about 50wt% of salt concentration. Another important aim of this work was to characterize the electrochemical properties of prepared new SPEs based on PVA. Linear sweep voltammetry (LSV) was used to measure the electrochemical stability window (ESW). And we observed the lithium deposition/stripping process in SPEs with small and large amount of salts using cyclic voltannetry (CV). SPEs showed over than 4.5V of ESW and reversible electrochemical reaction at the interface between electrode and electrolyte after the formation of ‘fast cationic transport process’. By combined results, we could describe the effective Li ion conduction in ‘fast cationic transport process’. |
| 저자 | 조윤경, 정수경, 조남주 |
| 소속 | 부산대 |
| 키워드 | solid polymer electrolyte; poly(vinyl alcohol); fast cationic transport process |
