Electrochemical Properties of Li1.1V0.75W0.075No00.075O2/Graphite Composite Anodes for Lithium-ion Batteries

Authors
Kim, Hyung SunKim, Sang-OkKim, Yong-TaeJung, Ji KwonNa, Byung KiLee, Joong Kee
Issue Date
2012-01
Publisher
대한화학회
Citation
Bulletin of the Korean Chemical Society, v.33, no.1, pp.65 - 68
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.
Keywords
SECONDARY BATTERY; VANADIUM-OXIDE; VANADATE; Li1.1V0.9-2xWxMoxO2; Composite anode; Lithium-ion batteries
ISSN
0253-2964
URI
https://pubs.kist.re.kr/handle/201004/129694
DOI
10.5012/bkcs.2012.33.1.65
Appears in Collections:
KIST Article > 2012
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