전기 방사법을 이용한 플레이크형 LiCoO2 나노 분말의 제조

Translated title of the contribution: Fabrication of Flake-like LiCoO2 Nanopowders using Electrospinning

Research output: Contribution to journalArticlepeer-review

Abstract

Flake-like LiCoO2 nanopowders were fabricated using electrospinning. To investigate their formation mechanism, field-emssion scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy were carried out. Among various parameters of electrospinning, we controlled the molar concentration of the precursor and the PVP polymer. When the molar concentration of lithium and cobalt was 0.45 M, the morphology of LiCoO2 nanopowders was irregular and round. For 1.27 M molar concentration, the LiCoO2 nanopowders formed with flake-like morphology. For the PVP polymer, the molar concentration was set to 0.011 mM, 0.026 mM, and 0.043 mM. Irregular LiCoO2 nanopowders were formed at low concentration (0.011 mM), while flake-like LiCoO2 were formed at high concentration (0.026 mM and 0.043 mM). Thus, optimized molar concentration of the precursor and the PVP polymer may be related to the successful formation of flake-like LiCoO2 nanopowders. As a results, the synthesized LiCoO2 nanopowder can be used as the electrode material of Li-ion batteries.
Translated title of the contributionFabrication of Flake-like LiCoO2 Nanopowders using Electrospinning
Original languageKorean
Journal한국분말야금학회지
Volume21
Issue number2
DOIs
StatePublished - Mar 2014

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