Synthesis of Metal Oxide Nanoparticle by Continuous Supercritical Hydrothermal Synthesis for Anode Materials of Lithium Ion Battery

Title
Synthesis of Metal Oxide Nanoparticle by Continuous Supercritical Hydrothermal Synthesis for Anode Materials of Lithium Ion Battery
Authors
아궁Bambang Veriansyah김재훈김재덕
Keywords
Anode Materials; Supercritical Hydrothermal Synthesis; anode lithium ion battery; metal oxide nanparticle
Issue Date
2009-10
Publisher
한국화학공학회
Abstract
Recently metal oxides have been investigated as negative electrodes in Li-ion batteries. In this study, metal oxide nanoparticles were prepared using continuous supercritical hydrothermal synthesis method that can be applied for mass production. Hydrothermal synthesis of metal oxide (MO, where M is Ni, Cu, Fe, Mn, or Co) nanoparticles from metal nitrate aqueous solution was carried out at 673 K and pressures 30 MPa. The as-synthesized metal oxide nanoparticles were characterized by a variety of techniques, such as X-ray diffraction, scanning electron microscopy, BET surface area measurement, and electrochemical test. The electrochemical properties of the as-synthesized metal oxide nanoparticles were investigated to determine their suitability as potential anode materials for lithium-ion batteries. In case of Co3O4, the lithium/Co3O4 cell was charge-discharged at a constant current density of 0.2857mAcm-2 and showed good charge-discharge capacity. The discharge capacity of the Li/ Co3O4 cell drastically decreased with cycle number, but still can be maintained at higher value than carbon material (372 mAhg-1). The supercritical hydrothermal synthesis method might be a useful method to prepare metal oxide nanoparticles for the anode material of lithium batteries.
URI
http://pubs.kist.re.kr/handle/201004/36039
Appears in Collections:
KIST Publication > Conference Paper
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