Abstract
We have investigated the correlation of the Raman spectrum change and the electrochemical lithium ion doping/dedoping properties for the carbon nanofiber (phenolic resin based, 100-500nm in fiber diameter) prepared by the polymer blend spinning technique. The Raman spectra of the carbon nanofiber electrode depended on the electrode potential, while any spectra change were not observed at the lithium ion dedoping process for the conventional carbon fiber (phenolic resin based, -10pm in fiber diameter). These results suggest that the nano-sizing of active carbon material is effective in uniform charge-discharge for lithium ion battery negative electrode.
