Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-26T23:18:42.840Z Has data issue: false hasContentIssue false
  • English
  • Français

VO2(B)/Graphene Forest for High-Rate Li-Ion Battery

Published online by Cambridge University Press:  28 May 2015

Guofeng Ren  and
Zhaoyang Fan
Guofeng Ren
Affiliation:
Department of Electrical and Computer Engineering and Nano Tech Center, Texas Tech University, Lubbock, Texas 79409, USA
Zhaoyang Fan
Affiliation:
Department of Electrical and Computer Engineering and Nano Tech Center, Texas Tech University, Lubbock, Texas 79409, USA
Get access

Abstract

2D nanomaterials, when assembled into an ordered macrostructure, will present many great opportunities, including for Li-ion batteries (LIBs). We report densely-packed vertically-aligned VO2(B) nanobelts (NBs)-based forest structure synthesized on edge-oriented graphene (EOG) network. Using a EOG/Ni foam as a 3D scaffold, aligned VO2(B) NBs can be further synthesized into a folded 3D forest structure to construct a freestanding electrode for LIBs. Electrochemical studies found that such a freestanding VO2(B)/EOG electrode, which combines the unique merits of 2D VO2(B) NBs and 2D graphene sheets, has excellent charge-discharge rate performance. A discharge capacity of 178 mAh g-1 at a rate of 59 C and 100 mAh g-1 at 300 C was measured. A good charge-discharge cycling stability under a high current density was also demonstrated. The results indicate VO2(B)/EOG forest based freestanding electrode is very promising for developing high-rate LIBs.

Keywords

energy storagenanostructurehydrothermal
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1773: Symposium G – Next Generation Electrochemical Energy Storage and Conversion Systems―Synthesis, Processing, Characterization and Manufacturing , 2015 , pp. 7 - 14
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Zhang, H., Yu, X., Braun, P.V., Nature Nanotechnol. 6, 277 (2011).CrossRefGoogle Scholar
Chabi, S., Peng, C., Hu, D., Zhu, Y., Adv. Mater. 26, 2440 (2014).CrossRefGoogle Scholar
Pan, X., Ren, G., Hoque, M. N. F., Bayne, S., Zhu, K., and Fan, Z., Adv. Mater. Interfaces 1, 1400398 (2014).CrossRefGoogle Scholar
Ellis, B.L., Knauth, P., Djenizian, T., Adv. Mater. 26, 3368 (2014).CrossRefGoogle Scholar
Miller, J. R., Outlaw, R. A., Holloway, B. C., Science 329, 1637 (2011).CrossRefGoogle Scholar
Pan, X., Zhu, K., Ren, G., Islam, N., Warzywoda, J., Fan, Z., J. Mater. Chem. A 2, 12746 (2014).CrossRefGoogle Scholar
Ren, G., Pan, X., Bayne, S., Fan, Z., Carbon 71, 94 (2014).CrossRefGoogle Scholar
Nethravathi, C., Rajamathi, C. R., Rajamathi, M., Gautam, U. K., Wang, X., Golberg, D., Bando, Y., ACS Appl. Mater. Interfaces 5, 2708 (2013).CrossRefGoogle Scholar
Pan, X., Zhao, Y., Ren, G., and Fan, Z., Chem. Comm. 49, 3943 (2013).CrossRefGoogle Scholar
Ren., G., Hoque, M. N. F., Pan, X., Warzywoda, J., and Fan, Z., J. Mater. Chem. A, 3, 10787 (2015).CrossRefGoogle Scholar