Effect of fluorine on Li[Ni1/3Co1/3Mn1/3]O2-zFz as lithium intercalation material

Li[Ni1/3Co1/3Mn1/3]O2-zFz (x=0-0.15) were synthesized via a co-precipitation followed by a high-temperature heat treatment. Though the initial discharge capacities of Li[Ni1/3Co1/3Mn1/3]O2-zFz (x=0-0.15) is somewhat smaller, capacity retention, rate capability, and thermal stability at highly oxidiz...

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Veröffentlicht in:Journal of power sources 2005-08, Vol.146 (1-2), p.602-605
Hauptverfasser: KIM, Gil-Ho, KIM, Myung-Hoon, MYUNG, Seung-Taek, YANG KOOK SUN
Format: Artikel
Sprache:eng
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Zusammenfassung:Li[Ni1/3Co1/3Mn1/3]O2-zFz (x=0-0.15) were synthesized via a co-precipitation followed by a high-temperature heat treatment. Though the initial discharge capacities of Li[Ni1/3Co1/3Mn1/3]O2-zFz (x=0-0.15) is somewhat smaller, capacity retention, rate capability, and thermal stability at highly oxidized state were significantly improved comparing to the undoped Li[Ni1/3Co1/3Mn1/3]O2. Fluorine substitution for oxygen made it possible to use the cathode material at 4.6 V cut-off limit.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2005.03.045