Skip to main content
placeholder image

Vacuum induced self-assembling nanoporous LiMn2O4 for lithium ion batteries with superior high rate capability

Journal Article


Abstract


  • Spinel LiMn2O4 is an inexpensive, eco-friendly and highly abundant cathode material for lithium ion batteries. Here, we report a synthesis of nanoporous LiMn2O4 cathode material using a simple vacuum induced self-assembly reaction. Ammonia molecules play a key role in the formation of the nanoporous structure in our method. The galvanostatic charge/discharge results show that the nanoporous LiMn2O4 delivers a high specific capacity at high power rates. About 95.9% of its initial capacity (94.5 mAh g-1) is retained after 100 cycles at 10 C. The enhanced kinetics of nanoporous LiMn2O4 with low apparent activation energies indicates that the nanoporous structure provides short Li-ion diffusion paths and a continuous three-dimensional network of pathways for the transport of Li-ions and electrons. These results reveal that the nanoporous spinel LiMn2O4 material is a promising cathode candidate for next generation of high-power lithium ion battery.

Authors


  •   Hua, Wei-Bo (external author)
  •   Wang, Su Ning (external author)
  •   Guo, Xiaodong (external author)
  •   Chou, Shulei
  •   Yin, Kui (external author)
  •   Zhong, Ben-He (external author)
  •   Dou, Shi Xue

Publication Date


  • 2015

Citation


  • Hua, W., Wang, S., Guo, X., Chou, S., Yin, K., Zhong, B. & Dou, S. (2015). Vacuum induced self-assembling nanoporous LiMn2O4 for lithium ion batteries with superior high rate capability. Electrochimica Acta, 186 253-261.

Scopus Eid


  • 2-s2.0-84946554744

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1754

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 253

End Page


  • 261

Volume


  • 186

Place Of Publication


  • United Kingdom

Abstract


  • Spinel LiMn2O4 is an inexpensive, eco-friendly and highly abundant cathode material for lithium ion batteries. Here, we report a synthesis of nanoporous LiMn2O4 cathode material using a simple vacuum induced self-assembly reaction. Ammonia molecules play a key role in the formation of the nanoporous structure in our method. The galvanostatic charge/discharge results show that the nanoporous LiMn2O4 delivers a high specific capacity at high power rates. About 95.9% of its initial capacity (94.5 mAh g-1) is retained after 100 cycles at 10 C. The enhanced kinetics of nanoporous LiMn2O4 with low apparent activation energies indicates that the nanoporous structure provides short Li-ion diffusion paths and a continuous three-dimensional network of pathways for the transport of Li-ions and electrons. These results reveal that the nanoporous spinel LiMn2O4 material is a promising cathode candidate for next generation of high-power lithium ion battery.

Authors


  •   Hua, Wei-Bo (external author)
  •   Wang, Su Ning (external author)
  •   Guo, Xiaodong (external author)
  •   Chou, Shulei
  •   Yin, Kui (external author)
  •   Zhong, Ben-He (external author)
  •   Dou, Shi Xue

Publication Date


  • 2015

Citation


  • Hua, W., Wang, S., Guo, X., Chou, S., Yin, K., Zhong, B. & Dou, S. (2015). Vacuum induced self-assembling nanoporous LiMn2O4 for lithium ion batteries with superior high rate capability. Electrochimica Acta, 186 253-261.

Scopus Eid


  • 2-s2.0-84946554744

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1754

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 253

End Page


  • 261

Volume


  • 186

Place Of Publication


  • United Kingdom