Supercritical Hydrothermal Synthesis of Lithium Iron Phosphate (LiFePO4) and its Electrochemical Properties

Title
Supercritical Hydrothermal Synthesis of Lithium Iron Phosphate (LiFePO4) and its Electrochemical Properties
Authors
홍승아김재훈김재덕강정원이윤우
Keywords
Lithium Iron Phosphate; Supercritical
Issue Date
2009-04
Publisher
한국화학공학회 2009봄학술대회
Citation
, 316-316
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/35090
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KIST Publication > Conference Paper
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