文献类型：期刊文献

英文题名：A macaroni-like Li1.2V3O8 nanomaterial with high capacity for aqueous rechargeable lithium batteries

作者：Cheng, C.[1]; Li, Z.H.[1]; Zhan, X.Y.[1]; Xiao, Q.Z.[1]; Lei, G.T.[1]; Zhou, X.D.[2]

机构：[1] Key Laboratory of Environmentally Friendly Chemistry and Applications, Ministry of Education, College of Chemistry, Hunan 411105, China; [2] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2010

卷号：55

期号：15

起止页码：4627

外文期刊名：Electrochimica Acta

收录：EI(收录号：20101612855448)

语种：英文

外文关键词：Scanning electron microscopy - X ray diffraction - Lithium compounds - Lithium batteries - Nanostructured materials - Electrolytes - High resolution transmission electron microscopy - Crystal structure

摘要：A macaroni-like Li1.2V3O8 nanomaterial was directly prepared through a facile solution route using β-cyclodextrin (β-CD) as a template reagent. Its crystal structure was determined by the X-ray diffraction (XRD) pattern. From the scanning electron microscopy (SEM) and transmission electron microscopy (TEM) micrographs, we observed that the as-prepared Li1.2V3O8 material consisted of the aggregated macaroni-like nanoparticles and showed a porous structure. The electrochemical properties of the as-prepared Li1.2V3O8 in 1.0 M Li2SO4 aqueous electrolyte were studied through cyclic voltammograms and charge-discharge measurements. The results revealed that the as-prepared Li1.2V3O8 could deliver the initial specific capacities of 189, 140, and 101 mAh g-1 at 0.1, 0.5, and 1.0 C, respectively. It suggests that the as-prepared Li1.2V3O8 should have an attractive future to be applied in aqueous rechargeable lithium battery (ARLB). ? 2010 Elsevier Ltd. All rights reserved.