Electrochemical Properties of Li1.1V0.75W0.075No00.075O2/Graphite Composite Anodes for Lithium-ion Batteries
- Authors
- Kim, Hyung Sun; Kim, Sang-Ok; Kim, Yong-Tae; Jung, Ji Kwon; Na, Byung Ki; Lee, 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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