Skip to main content
SpringerLink
Log in

Significant improvement of electrochemical performance of Cu-coated LiVPO4F cathode material for lithium-ion batteries

  • Published:
Journal of Chemical Sciences Aims and scope Submit manuscript

Abstract

In this paper, we reveal that the intrinsic low electronic conductivity of the pristine LiVPO4F is overcome with conductive Cu-coating. The existence of nano-Cu is confirmed with X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS). The morphology and particle size are observed by scanning electron microscopy (SEM). Galvanostatic charge/discharge test indicates that Cu coating is effective to improve the discharge capacity, cycle performance and rate capability. Analysis of electrochemical impedance spectra (EIS) shows that the addition of nano-Cu markedly decreases the charge transfer resistance of the pristine LiVPO4F electrode.

Nano-Cu coating on the surface of pristine LiVPO4F particles is successfully synthesized for the first time via a soft chemical route with mechanical activation assistance. The effect of Cu coating on the crystalline structure, morphology and electrochemical performance of the pristine sample has been investigated in detail.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8

Similar content being viewed by others

References

  1. Goodenough J B 2007 J. Power Sources 174 996

    Article  CAS  Google Scholar 

  2. Barker J, Saidi M Y and Swoyer J L 2004 J. Electrochem. Soc. 151 A1670

    Article  CAS  Google Scholar 

  3. Barker J, Gover P K B, Bryan A and Saidi M Y 2005 J. Power Sources 146 516

    Article  CAS  Google Scholar 

  4. Gover P K B, Burns P, Bryan A, Saidi M Y, Swoyer J L and Barker J 2006 Solid State Ionics 177 2635

    Article  CAS  Google Scholar 

  5. Barker J Saidi M Y and Swoyer J L 2003 J. Electrochem. Soc. 150 A1394

    Article  Google Scholar 

  6. Thackeray M M, Johnson P J, de Picciotto L A, Bruce P G and Goodenough J B 1984 Mater. Res. Bull. 19 179

    Article  CAS  Google Scholar 

  7. Koksbang R, Barker J, Shi H and Saidi M Y 1996 Solid State Ionics 84 1

    Article  CAS  Google Scholar 

  8. Pivko M, Bele M, Tchernychova E, Logar N Z, Dominko R and Gaberscek M 2012 Chem. Mater. 24 1041

    Article  CAS  Google Scholar 

  9. Li Y Z, Zhou Z, Gao X P and Yan J 2006 J. Power Sources 160 633

    Article  CAS  Google Scholar 

  10. Wang J X, Li X H, Wang Z X, Guo H J, Zhang Y H, Xiong X H and He Z J 2013 Electrochim. Acta 91 75

    Article  CAS  Google Scholar 

  11. Jiang T, Wei Y J, Ming X, Chen G and Wang C Z 2009 J. Alloys Compd. 488 L26

    Article  CAS  Google Scholar 

  12. Croce F, Epifanio A D, Hassoun J, Deptula A, Olczac T and Scrosati B 2002 Electrochem. Solid-State Lett. 5 A47

    Article  CAS  Google Scholar 

  13. Ma R, Shu J, Shao L Y, Lin X T, Wu K Q, Shui M, Li P, Long N B and Ren Y L 2014 Ceram. Int. 40 15113

    Article  CAS  Google Scholar 

  14. Zhong S K, Yin Z L, Wang Z X and Chen Q Y 2007 J. Cent. S. Univ. Technol. 14 340

    Article  CAS  Google Scholar 

  15. Li Y Z, Ren J X, Zhou Z, Gao X P and Yan J 2005 Chin. J. Inorg. Chem. 21 1597

    CAS  Google Scholar 

  16. Zhang Q, Zhong S K, Liu L T, Liu J Q, Jiang J Q, Wang J and Li Y H 2009 J. Phys. Chem. Solids 70 1080

    Article  CAS  Google Scholar 

  17. Wang G X, Yang L and Chen Y 2005 Electrochim. Acta 50 4649

    Article  CAS  Google Scholar 

  18. Gao F and Tang Z 2008 Electrochim. Acta 53 5071

    Article  CAS  Google Scholar 

Download references

Acknowledgement

This project was supported by National Natural Science Foundation of China (Grant No. 51205054), Research Fund for Talents of Northeastern University (Grant No. 26333002), Liaoning Province Enterprise Postdoctoral Funded Project and China Postdoctoral Science Foundation funded project (Grant No. 2014M551106).

Author information

Authors and Affiliations

  1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110819, China

    YU ZHANG & CUILING LI

  2. School of Mechanical Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, China

    XIAOLAN BAI

Authors
  1. YU ZHANG
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. XIAOLAN BAI
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. CUILING LI
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to YU ZHANG.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

ZHANG, Y., BAI, X. & LI, C. Significant improvement of electrochemical performance of Cu-coated LiVPO4F cathode material for lithium-ion batteries. J Chem Sci 127, 1411–1416 (2015). https://doi.org/10.1007/s12039-015-0915-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12039-015-0915-x

Keywords

Search

Navigation