A kinetic study of the discharge reaction of graphite fluoride cathode in nonaqueous lithium cell was made by the aid of the analysis of polarization decay curve and chronoamperometry using the potential step method. Both confirmed that the relatively large overpotential of the graphite fluoride cathode was caused by the delay of lithium ion transfer in the thin diffusion layer of graphite intercalation compounds (GIC) produced on the surface of the graphite fluoride electrode by the discharge reaction. Activation energies of lithium ion diffusion were for and , respectively.
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Hagiwara et al. (1988) studied this question.