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Nano-sized cathode material LiMn0.5Fe0.5PO4/C synthesized via improved sol-gel routine and its magnetic and electrochemical properties

Journal Article


Abstract


  • Cathode materials LiMn 0.5 Fe 0.5 PO 4 /C and LiMnPO 4 /C were synthesized by a high-energy ball-milling assisted sol-gel method. The LiMn 0.5 Fe 0.5 PO 4 consists of nanorods and nanoparticles homogeneously wrapped with highly ordering carbon. The increased Néel-temperature and decreased effective magnetic moment of LiMn 0.5 Fe 0.5 PO 4 /C revealed the microstructure differences from LiMnPO 4 /C. Meanwhile, tiny amount of ferromagnetic impurities is detected in LiMn 0.5 Fe 0.5 PO 4 /C by magnetic tests. The synergetic effects of Fe substitution and carbon coating remarkably improve rate capacity and cyclic stability of LiMn 0.5 Fe 0.5 PO 4 /C. This solid solution delivers initial discharge capacities of 128.6 mAh g −1 and 116.3 mAh g −1 and capacity retentions of 93.5% and 90.3% after 100 cycles at 1C and 2C respectively, significantly better than LiMnPO 4 /C.

Authors


  •   Liu, Liying (external author)
  •   Chen, Guiyuan (external author)
  •   Du, Bingtian (external author)
  •   Cui, Yanyan (external author)
  •   Ke, Xi (external author)
  •   Liu, Jun (external author)
  •   Guo, Zaiping
  •   Shi, Zhicong (external author)
  •   Zhang, Haiyan (external author)
  •   Chou, Shulei

Publication Date


  • 2017

Citation


  • Liu, L., Chen, G., Du, B., Cui, Y., Ke, X., Liu, J., Guo, Z., Shi, Z., Zhang, H. & Chou, S. (2017). Nano-sized cathode material LiMn0.5Fe0.5PO4/C synthesized via improved sol-gel routine and its magnetic and electrochemical properties. Electrochimica Acta, 255 205-211.

Scopus Eid


  • 2-s2.0-85030714243

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2759

Number Of Pages


  • 6

Start Page


  • 205

End Page


  • 211

Volume


  • 255

Place Of Publication


  • United Kingdom

Abstract


  • Cathode materials LiMn 0.5 Fe 0.5 PO 4 /C and LiMnPO 4 /C were synthesized by a high-energy ball-milling assisted sol-gel method. The LiMn 0.5 Fe 0.5 PO 4 consists of nanorods and nanoparticles homogeneously wrapped with highly ordering carbon. The increased Néel-temperature and decreased effective magnetic moment of LiMn 0.5 Fe 0.5 PO 4 /C revealed the microstructure differences from LiMnPO 4 /C. Meanwhile, tiny amount of ferromagnetic impurities is detected in LiMn 0.5 Fe 0.5 PO 4 /C by magnetic tests. The synergetic effects of Fe substitution and carbon coating remarkably improve rate capacity and cyclic stability of LiMn 0.5 Fe 0.5 PO 4 /C. This solid solution delivers initial discharge capacities of 128.6 mAh g −1 and 116.3 mAh g −1 and capacity retentions of 93.5% and 90.3% after 100 cycles at 1C and 2C respectively, significantly better than LiMnPO 4 /C.

Authors


  •   Liu, Liying (external author)
  •   Chen, Guiyuan (external author)
  •   Du, Bingtian (external author)
  •   Cui, Yanyan (external author)
  •   Ke, Xi (external author)
  •   Liu, Jun (external author)
  •   Guo, Zaiping
  •   Shi, Zhicong (external author)
  •   Zhang, Haiyan (external author)
  •   Chou, Shulei

Publication Date


  • 2017

Citation


  • Liu, L., Chen, G., Du, B., Cui, Y., Ke, X., Liu, J., Guo, Z., Shi, Z., Zhang, H. & Chou, S. (2017). Nano-sized cathode material LiMn0.5Fe0.5PO4/C synthesized via improved sol-gel routine and its magnetic and electrochemical properties. Electrochimica Acta, 255 205-211.

Scopus Eid


  • 2-s2.0-85030714243

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2759

Number Of Pages


  • 6

Start Page


  • 205

End Page


  • 211

Volume


  • 255

Place Of Publication


  • United Kingdom