Abstract
We fabricated LiCoO 2/carbon composites by forming helical carbon nanomaterials (HCNs) from organic liquids as carbon sources on the surface of LiCoO 2 particles by chemical vapor deposition (CVD) and estimated their electrochemical properties as cathodes of rechargeable lithium cells. By scanning electron microscopy measurements, we observed HCNs called carbon nanotwists formed on the surface of LiCoO 2 particles. X-ray diffraction measurements suggested that acetic acid supplies LiCoO 2/HCNs with less decomposition of LiCoO 2 than C 2H 2 does. However, we found that the electrochemical properties of cells containing the composites were not as good as those of cells containing acetylene black (AB).
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