摘要:
To study the electrochemical kinetic properties of the Li/Graphite system, cycle voltammerty (CV), ac-impedance and chronoamperometry (CA) techniques have been used. The results showed that the diffusion of lithium ions in Li
xC
6 is the rate-determining step. The chemical diffusion coefficients of lithium (
DLi) have been estimated for different
x values. As for the same material, the value of
DLi was calculated in order to compare the differences among the three techniques.