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Ultrafast Li-ion migration in eggshell-inspired 2D@2D dual porous construction towards high rate energy storage

Journal Article


Abstract


  • © 2020 Elsevier Ltd The rate performance of lithium-ion batteries is vital to their practical applications in electronics and vehicles, but impeded by limited migration of Li+ and electrons in solid anode materials. Inspired by the double-layer porous structure, a calciferous outer layer elegantly grown on a protein inner layer, of air-penetrable eggshells, a new composite is designed to have a 2D@2D dual porous architecture consisting of 2D holey graphene (hG) and 2D porous ZnFe2O4 nanobelts (ZFOnb@hG). In the composite Zn–Fe hybrid Prussian blue analog was transformed into 2D porous ZnFe2O4 nanobelts on a holey graphene matrix which acts as both template and substrate. The hG matrix in the dual porous structure can minimize Li+/electron transfer pathways and the 2D porous nanobelts consisting of ultrafine ZnFe2O4 nanoparticles (3−4 nm) can efficiently buffer the volume change in both lateral and thickness directions during lithiation/delithiation. The resultant composite ZFOnb@hG exhibited an ultrahigh capacity of 1305 mA h g−1 after 250 cycles at 0.2 A g−1 and outstanding rate performance with excellent cycling stability of 703 mA h g−1 retained after 10000 cycles at 10 A g−1. This biomimetic study opens up a new avenue for the development of high-capacity anode materials towards fast-charging capabilities.

Authors


  •   Zhu, Chengling (external author)
  •   Hu, Danmei (external author)
  •   Pan, Hui (external author)
  •   Yuan, Hao (external author)
  •   Li, Yao (external author)
  •   Mao, Jianfeng
  •   Guo, Zaiping
  •   Chen, Zhixin
  •   Imtiaz, Muhammad (external author)
  •   Zhu, Shenmin (external author)

Publication Date


  • 2020

Published In


Citation


  • Zhu, C., Hu, D., Pan, H., Yuan, H., Li, Y., Mao, J., Guo, Z., Chen, Z., Imtiaz, M. & Zhu, S. (2020). Ultrafast Li-ion migration in eggshell-inspired 2D@2D dual porous construction towards high rate energy storage. Carbon, 170 66-74.

Scopus Eid


  • 2-s2.0-85089704986

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/4359

Number Of Pages


  • 8

Start Page


  • 66

End Page


  • 74

Volume


  • 170

Place Of Publication


  • United Kingdom

Abstract


  • © 2020 Elsevier Ltd The rate performance of lithium-ion batteries is vital to their practical applications in electronics and vehicles, but impeded by limited migration of Li+ and electrons in solid anode materials. Inspired by the double-layer porous structure, a calciferous outer layer elegantly grown on a protein inner layer, of air-penetrable eggshells, a new composite is designed to have a 2D@2D dual porous architecture consisting of 2D holey graphene (hG) and 2D porous ZnFe2O4 nanobelts (ZFOnb@hG). In the composite Zn–Fe hybrid Prussian blue analog was transformed into 2D porous ZnFe2O4 nanobelts on a holey graphene matrix which acts as both template and substrate. The hG matrix in the dual porous structure can minimize Li+/electron transfer pathways and the 2D porous nanobelts consisting of ultrafine ZnFe2O4 nanoparticles (3−4 nm) can efficiently buffer the volume change in both lateral and thickness directions during lithiation/delithiation. The resultant composite ZFOnb@hG exhibited an ultrahigh capacity of 1305 mA h g−1 after 250 cycles at 0.2 A g−1 and outstanding rate performance with excellent cycling stability of 703 mA h g−1 retained after 10000 cycles at 10 A g−1. This biomimetic study opens up a new avenue for the development of high-capacity anode materials towards fast-charging capabilities.

Authors


  •   Zhu, Chengling (external author)
  •   Hu, Danmei (external author)
  •   Pan, Hui (external author)
  •   Yuan, Hao (external author)
  •   Li, Yao (external author)
  •   Mao, Jianfeng
  •   Guo, Zaiping
  •   Chen, Zhixin
  •   Imtiaz, Muhammad (external author)
  •   Zhu, Shenmin (external author)

Publication Date


  • 2020

Published In


Citation


  • Zhu, C., Hu, D., Pan, H., Yuan, H., Li, Y., Mao, J., Guo, Z., Chen, Z., Imtiaz, M. & Zhu, S. (2020). Ultrafast Li-ion migration in eggshell-inspired 2D@2D dual porous construction towards high rate energy storage. Carbon, 170 66-74.

Scopus Eid


  • 2-s2.0-85089704986

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/4359

Number Of Pages


  • 8

Start Page


  • 66

End Page


  • 74

Volume


  • 170

Place Of Publication


  • United Kingdom