The reaction of cell Li/CDMO has been studied with XRD, XPS and electr
ochemical method from XRD and coulombic titration, we gained that the
thermodynamics of the cell was determined by gamma-beta-MnO2. The chem
ical diffusion coefficient of lithium in CDMO was determined by GITT m
ethod to be about 10(-9)cm(2) . s(-1). These phenomena suggested that
the discharge reaction is the intercalation reaction of lithium into h
ost structure.