Origin of the Increased Li+‐Storage Capacity of Stacked SnS2/Graphene Nanocomposite

Baihua Qu; Ge Ji; Bo Ding; Meihua Lu; Weixiang Chen

doi:10.1002/celc.201500134

journal article May 26, 2015

Origin of the Increased Li+‐Storage Capacity of Stacked SnS2/Graphene Nanocomposite

Baihua Qu Ge Ji Bo Ding

Meihua Lu Weixiang Chen

ChemElectroChem Vol. 2 No. 8 pp. 1138-1143 · Wiley

View at Publisher Save 10.1002/celc.201500134

Abstract

AbstractThere has been strong recent interest in using SnS2/graphene nanocomposites for reversible Li+ storage. Although SnS2 and graphene are 2D nanomaterials, many of their composites reported to date have a random 3D structure. We present here a stacked SnS2/graphene nanocomposite that retains many of the original 2D features of the graphene nanosheets. As a result, significantly improved Li+‐storage properties were shown including: 1) good cycle stability (delithiation capacity of 1063 mAh g−1 for 100 cycles at 200 mA g−1 and 918 mAh g−1 for 500 cycles at 1 A g−1); 2) high first‐cycle coulombic efficiency (89.7 %); 3) high reversibility of the conversion reaction SnS2+4 Li++4 e−→Sn+2 Li2S (87.5 %); and 4) high rate performance (712 mAh g−1 at 5 A g−1). Such good performance corresponds well with a 2D construction, in which Sn nanoparticles are firmly held by graphene nanosheets. The conversion reaction becomes more reversible in the presence of the Sn nanoparticles to contribute to the additional storage capacity.

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References

36

[1]

[2]

10.1016/j.jpowsour.2007.02.040

[3]

10.1002/adma.200703122

[4]

10.1039/b823474d

[5]

10.1039/c2nr31357j

[6]

10.1021/cm301432w

[7]

[8]

10.1002/adma.200901427

[9]

10.1039/c0cc03023f

[10]

[11]

10.1038/ncomms5105

[12]

10.1038/nmat3435

[13]

10.1038/nmat1672

[14]

10.1039/c1ee02800f

[15]

[16]

10.1016/j.jpowsour.2011.10.132

[17]

10.1039/c2cp40790f

[18]

10.1016/j.jpowsour.2013.03.048

[19]

10.1021/jp303121n

[20]

10.1039/c2jm35137d

[21]

10.1039/c2ra00002d

[22]

10.1021/am302124f

[23]

10.1039/c3ta11269a

[24]

10.1021/am403905x

[25]

[26]

10.1002/adma.201300071

[27]

10.1021/am405557c

[28]

10.1002/adma.201306314

[29]

Preparation of Graphitic Oxide

William S. Hummers, Richard E. Offeman

Journal of the American Chemical Society 10.1021/ja01539a017

[30]

10.1021/jp301024d

[31]

[32]

10.1039/c2jm34864k

[33]

10.1016/j.jpowsour.2013.03.062

[34]

10.1039/c0ee00831a

[35]

10.1021/nl304716e

[36]

10.1021/nl101223k

Metrics

32

Citations

36

References

Details

Published: May 26, 2015
Vol/Issue: 2(8)
Pages: 1138-1143
License: View

Authors

B

Baihua Qu

College of Materials Science and Engineering National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing 400044 China; National Key Laboratory of Advanced Casting Technologies Chongqing University Chongqing 400044 China

Cite This Article

Baihua Qu, Ge Ji, Bo Ding, et al. (2015). Origin of the Increased Li+‐Storage Capacity of Stacked SnS2/Graphene Nanocomposite. ChemElectroChem, 2(8), 1138-1143. https://doi.org/10.1002/celc.201500134

Origin of the Increased Li+‐Storage Capacity of Stacked SnS2/Graphene Nanocomposite

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