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Electronic Processes in Electrode Materials of A x MX 2 ‐Type
Author(s) -
Molenda Janina
Publication year - 1984
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221220224
Subject(s) - intercalation (chemistry) , cathode , cobalt , materials science , electrode , electronic structure , transition metal , metal , type (biology) , electronic band structure , condensed matter physics , crystallography , inorganic chemistry , chemistry , metallurgy , physics , ecology , biochemistry , biology , catalysis
Electronic processes taking place during intercalation in A x MX 2 ‐type electrode materials (A Li, Na; M = transition metal; X = O, S) are discussed. It is shown that for cobalt bronze, Na x CoO 2− y , taken as representative of the electrode materials under consideration, the variation of Co‐Co interactions, accompanying the intercalation process, leads to the modification of band structure of the cathode material bringing about the Mott transition of metal‐non‐metal type. The experimental results indicate close correlation between the electronic structure of the cathode material and its potential.