Layered Li-Co-Mn oxide as a high-voltage positive electrode material for lithium batteries

Authors
Kajiyama, A Takada, K Inada, T Kouguchi, M Kondo, S Watanabe, M
Citation
A. Kajiyama et al., Layered Li-Co-Mn oxide as a high-voltage positive electrode material for lithium batteries, J ELCHEM SO, 148(9), 2001, pp. A981-A983
Citations number
33
Categorie Soggetti
Physical Chemistry/Chemical Physics","Material Science & Engineering
Journal title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN journal
00134651 → ACNP
Volume
148
Issue
9
Year of publication
2001
Pages
A981 - A983
Database
ISI
SICI code
0013-4651(200109)148:9<A981:LLOAAH>2.0.ZU;2-Y
Abstract
A layered Li-Co-Mn oxide was synthesized from a host layered Na-Co-Mn oxide by ion-exchange technique. Its electrode performance showed anomalous high redox potential of ca. 4.5 V vs. Li/Li+ for the intercalation and deinterc alation of lithium, although the end members of solid solution LiCoO2 and L iMnO2 did only 4.0 V. The oxidation state of the cobalt was measured by X-r ay photoelectron spectroscopy and was trivalent. (C) 2001 The Electrochemic al Society.