Lithium transport through a carbon film electrode prepared by the plasma-enhanced chemical vapor deposition method

An experiment was conducted to study lithium transport through the carbon film electrode depending on the structure of pyrolytic carbon as a host carbon using cyclic voltammetry supplemented by a.c. impedance spectroscopy. The structure of the pyrolytic carbon was characterized by the powder X-ray diffraction method and Fourier transformation infrared spectroscopy. A pyrolytic carbon electrode in the form of a film specimen prepared by the plasma-enhanced chemical vapor deposition (PECVD) method and a 1 M LiPF6 in ethylene carbonate and dielectric carbonate were chosen as an intercalation electrode and a non-aqueous electrolyte, respectively.