We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Synthesis and electrochemical properties of graphene-SnS nanocomposites for lithium-ion batteries.
- Authors
Shen, Chenfei; Ma, Luyao; Zheng, Mingbo; Zhao, Bin; Qiu, Danfeng; Pan, Lijia; Cao, Jieming; Shi, Yi
- Abstract
Graphene-SnS nanocomposites were prepared via a solvothermal method with different loading of SnS. The nanostructure and morphology of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The XRD patterns revealed that hexagonal SnS was obtained. SEM and TEM results indicated that SnS particles distributed homogeneously on graphene sheets. The electrochemical properties of the samples as active anode materials for lithium-ion batteries were examined by constant current charge-discharge cycling. The composite with weight ratio between graphene and SnS of 1:4 had the highest rate capability among all the samples and its reversible capacity after 50 cycles was 351 mAh/g, which was much higher than that of the pure SnS (23 mAh/g). With graphene as conductive matrix, homogeneous distribution of SnS nanoparticles can be ensured and volume changes of the nanoparticles during the charge and discharge processes can be accomodated effectively, which results in good electrochemical performance of the composites.
- Subjects
GRAPHENE; NANOCOMPOSITE materials; LITHIUM-ion batteries; NANOSTRUCTURED materials; NANOSTRUCTURES
- Publication
Journal of Solid State Electrochemistry, 2012, Vol 16, Issue 5, p1999
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-011-1602-6