| 학회 | 한국재료학회 |
| 학술대회 | 2013년 봄 (05/23 ~ 05/24, 여수 엠블호텔(THE MVL)) |
| 권호 | 19권 1호 |
| 발표분야 | C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 | Electrochemical Characteristics of Olivine-type LiFexMn1-xPO4 Cathode Materials for Lithium Ion Batteries |
| 초록 | The Olivine-type LiFePO4 cathode material has advantages of commercial advantage, high thermal stability and friendly environment. but this is limited of the high-performance electric vehicle (EV) because of low voltage due to low energy density. In this study, high voltage olivine LiFexMn1-xPO4 by varying ratio of Fe substituted for Mn are synthesized by ball milling method. Synthetic LiFexMn1-xPO4 were measured morphology, surface state by Scanning electron microscopy (SEM) and analyzed the structural characteristics by X-ray diffractometer (XRD) Also produced a coin-type cell, the electrochemical properties were evaluated. That test are electrochemical redox behavior according to charge and discharge characteristics, impedance, high-rate charge and discharge characteristics. Through this study, There exist two plateaus around 3.4 and 4.1 V on both of their charge and discharge curves, while the substitution of Fe for Mn. As a result, the charge/discharge plateaus voltages of the synthesized cathode material are higher than charge/discharge plateaus voltages of conventional LiFePO4 cathode material. |
| 저자 | 조혜담, 장덕례 |
| 소속 | 한국생산기술(연) |
| 키워드 | Lithium Ion Battery; cathode; LiFePO4 |
