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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 1
BKCSDE 33(1)
January 20, 2012

Title	Electrochemical Properties of Li_1.1V_0.75W_0.075Mo_0.075O₂/Graphite Composite Anodes for Lithium-ion Batteries
Author	Hyung Sun Kim*, Sang-Ok Kim, Yong-Tae Kim, Ji Kwon Jung, Byung Ki Na, Joong Kee Lee
Keywords	Li_1.1V_0.9-2xW_xMo_xO₂, Composite anode, Lithium-ion batteries
Abstract	Novel type Li1.1V0.9-2xWxMoxO2 powders were prepared by a solid-state reaction of Li2CO3, V2O3, WO2 and MoO2 precursors in a nitrogen atmosphere containing 10 mol % hydrogen gas, and assessed as anode materials in lithium-ion batteries. The specific charge and discharge capacities of the Li1.1V0.9-2xWxMoxO2 anodes were higher than those of the bare Li1.1V0.9O2 anode. The cyclic efficiency of these anodes was approximately 73.3% at the first cycle, regardless of the presence of W and Mo doping. The composite anode, which was composed of Li1.1V0.75W0.075Mo0.075O2 (20 wt %) and natural graphite (80 wt %), demonstrated reasonable specific capacity, high cyclic efficiency, and good cycling performance, even at high rates without capacity fading.
Page	65 - 68
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