A study was made of the relation between the cathode overpotentials and structures of two kinds of graphite fluorides, and in nonaqueous lithium battery. The oyerpotential of electrode decreased with increasing interlayer spacing and decreasing thickness of the crystallite along the C axis. However, it was found that the overpotential of electrode primarily depended on the amount of the defects which would be present in the form of polynuclear aromatic carbon rings in . The defects in would give the short circuiting paths for the transfer of a lithium ion in diffusion layer. The higher discharge potential of than that of was mainly attributed to the effect of the defects contained in .
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Watanabe et al. (1984) studied this question.