The factors are discussed that influence potentials of cathodic materi
als under intercalation (entropy effect, guest-host interactions, chan
ges of lattice structure). It is shown that, in most cases, changes in
the potentials of intercalated cathodic materials (ICM) are caused by
several factors simultaneously. The main influence on the potentials
is exerted by the ICM nature (above all, by the nature of the metal wi
th a varying oxidation degree) and by the intercalation degree. It is
shown that changes in the structure and potentials of ICM are closely
related. The standard potentials of 37 systems are calculated. A corre
lation is shown to exist between the standard potentials of ICM and th
e electron structure of the metal with a varying oxidation degree.