Charge-discharge Mechanism of LiCoPO_4 Cathode for Rechargeable Lithium Batteries

Shigeto Okada, Sho-ichiro Sawa, Yasushi Uebou, Minato Egashira, Jun-ichi Yamaki, Mitsuharu Tabuchi, Hironori Kobayashi, Kohei Fukumi, Hiroyuki Kageyama

Research output: Contribution to journalArticle

Abstract

<p>The structure of ordered-olivine LiCoPO<sub>4</sub> was identified by neutron diffraction measurements. A 4.8 V discharge profile was demonstrated using coin-type cells. XAFS and magnetic measurements indicated that the high-voltage plateau of Li<sub>1−x</sub>CoPO<sub>4</sub> corresponds to the Co<sup>2+</sup>/Co<sup>3+</sup> redox reaction.</p>
Original languageEnglish
Pages (from-to)1136-1138
Number of pages3
JournalElectrochemistry
Volume71
Issue number12
DOIs
Publication statusPublished - Dec 5 2003

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