ELECTROCHEMICAL INTERCALATION INTO CATHODIC MATERIALS - ELECTRODE-POTENTIALS

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.