Supercritical Hydrothermal Synthesis of Lithium Iron Phosphate (LiFePO4) and its Electrochemical Properties
- Supercritical Hydrothermal Synthesis of Lithium Iron Phosphate (LiFePO4) and its Electrochemical Properties
- 홍승아; 김재훈; 김재덕; 강정원; 이윤우
- Lithium Iron Phosphate; Supercritical
- Issue Date
- 한국화학공학회 2009봄학술대회
- , 316-316
- LiFeP04 has been attracted much attention as a promising cathode active material 엳 새 its waluable properties. This includes high stability at elevated temperature, safety under abusive conditions, good energy density, low cost of the startig materials, and lack of toxicity. These valuable properties of LiFeP04 make it suitable for large scale applications such as hybric electric vehicles(HEV) or plug in hybrid electric vehicle(PHEV). Supercritical hydrothermal synthesis(SHS) is a very promising method to produce high-quality, highly crystalline, and nanosize metal oxide particles. The object of this study is to prepare single phase, nanosize and single crystal LiFeP04 particles using continuous SHS. LiFeP04 particles were characterized in detail using SEM, XRD, BET analysis, PSA and charge/discharge testing. The particles have a small size (7-25m2/g for BET surface are) and have been controlled their morphology. The LiFeP04 delivers reversible capacity of ~120mAh/g at a current density of C/10 after carbon coating.
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