Preparation of V2O5 Porous Hollow Spheres and Study on excellent cycling Stability of lithium Battery

Zhang Shimeng(College of New Energy, bohai University)
Guan Hongye(College of New Energy, bohai University)
Li Dapeng(College of New Energy, bohai University)
Zhang Gengxin(College of New Energy, bohai University)
Yang Ruijia(College of New Energy, bohai University)
Zhao Liang(College of New Energy, bohai University)
Sun Haibin(College of New Energy, bohai University)
Lu Zhicheng(College of New Energy, bohai University)
Wen Jiacai(College of New Energy, bohai University)
Dong Yujuan(College of New Energy, bohai University)

Abstract

Through one-step simple polyol-assisted (ethylene glycol) process, V2O5 hollow micro-spheres about 3 micrometres in size were successfully synthesized. The structure is neat, the outer wall were porous. Testing its electrochemical properties with V2O5 hollow
materials as cathode materia of lithium ion battery, the results showed that under the ratio of 1 C, the initial charge and discharge specifc capacity were 236.8 mAh g-1, 213 mAh g-1, even if after 100 cycles, the charge and discharge specifc capacity were still 220 mAh g-1 and 219.7 mAh g-1 respectively. Relative to the charge and discharge capacity of the second cycle, the keep rate were 93.2%, 92.9% respectively, has good cycle stability.

Keywords

V2O5 porous hollow spheres; Lithium battery; Cycling stability

References

A. Pan, J.-G. Zhang, Z. Nie, G. Cao, B. W. Arey, G. Li, S.-Q. Liang, J. Liu. Journal of Materials Chemistry,2010,20,9193.

X. Gu, L. Chen, Z. Ju, H. Xu, J. Yang, Y. Qian. Advanced Functional Materials, 2013,23,4049.

W. Zhou, Y. Y. Tay, X. Jia, D. Y. Yau Wai, J. Jiang, H. H. Hoon, T. Yu. Nanoscale, 2012,4,4459.

S. Lee, Y. Cho, H. K. Song, K. T. Lee, J. Cho. Angewandte Chemie, 2012,51,8748.

Y.-L. Ding, X.-B. Zhao, J. Xie, G.-S. Cao, T.-J. Zhu, H.-M. Yu, C.-Y. Sun. Journal of Materials Chemistry,2011,21,9475.

L.Wang, X. He, W. Sun, J. Wang, Y. Li, S. Fan. Nano letters, 2012,12,5632.

K. Kang, Y. S. Meng, J. M., Bre´ger, C. P. Grey, G. Ceder, Science, 2006,311,977.

A. M. Cao, J. S. Hu, H. P. Liang, L. J. Wan. Angewandte Chemie, 2005,44,4391.

E. Uchaker, N. Zhou, Y. Li, G.Cao. The Journal of Physical Chemistry C, 2013,117,1621.

Y. J. Dong, H. Y. Wei, W. Liu, Q. J. Liu, W. J. Zhang.Y. Z.Yang. Journal of Power Sources, 2015,285,538.

D. W. Su, S. X. Dou, G. X.Wang. Journal of Materials Chemstry A, 2014,2, 11185.

L. Jun, Y. C. Zhou, J. B. Wang, Y. Pan, D. F. Xue. Chem. Commun., 2011,47, 10380.

P. Liu, S. -H. Lee, C. E. Tracy, Y. F. Yan, J. A. Turner. Adv. Mater., 2002,14.

S. Q. Wang, S. R. Li, Y. Sun, X. Y. Feng, C. H. Chen. Energy Environ. Sci., 2011,4,2857.

Y. J. Dong, H. Y. Wei, H. F. Bi, W. Liu, W. J. Zhang, Y. Z.

Yang. RSC Advances, 2015,5,85964.

DOI: http://dx.doi.org/10.26549/met.v2i3.1136