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Biomass-Derived Carbon Paper to Sandwich Magnetite Anode for Long-Life Li-Ion Battery

Journal Article


Abstract


  • Metal oxides can deliver high capacity to Li-ion batteries, surpassing conventional graphite, but they suffer from a huge volume change during charging-discharging and poor cycle life. Herein, we merge the dual strategies of 3D-network support and sandwiching design to tackle such issue. We develop a skillful O2-NH3 reactive pyrolysis of cellulose, where the preoxidation and the aminolysis result in the spatially separated charring of cellulose chains. A cellulose fiber is wonderfully converted into several ultrathin twisted graphenic sheets instead of a dense carbon fiber, and consequently, a cellulose paper is directly transformed into a porous flexible carbon paper with high surface area and conductivity (denoted as CP). CP is further fabricated as a 3D-network support into the hybrid CP@Fe3O4@RGO, where RGO is reduced graphene oxide added for sandwiching Fe3O4 particles. As a binder-free free-standing anode, CP@Fe3O4@RGO effectively fastens Fe3O4 and buffers the volume changes on cycling, which stabilizes the passivating layer and lifts the Coulombic efficiency. The anode thus presents an ultralong cycle life of >2000 running at a high capacity level of 1160 mAh g-1. It additionally facilitates electron and ion transports, boosting the rate capability. CP and CP@Fe3O4@RGO represent a technological leap underpinning next-generation long-life high-capacity high-power batteries.

UOW Authors


  •   Gao, Tian (external author)
  •   Xu, Chenyang (external author)
  •   Li, Ruiqing (external author)
  •   Zhang, Ran (external author)
  •   Wang, Baolu (external author)
  •   Jiang, Xiangfen (external author)
  •   Hu, Ming (external author)
  •   Bando, Yoshio
  •   Kong, Desheng (external author)
  •   Dai, Pengcheng (external author)
  •   Wang, Xue (external author)

Publication Date


  • 2019

Citation


  • Gao, T., Xu, C., Li, R., Zhang, R., Wang, B., Jiang, X., Hu, M., Bando, Y., Kong, D., Dai, P. & Wang, X. (2019). Biomass-Derived Carbon Paper to Sandwich Magnetite Anode for Long-Life Li-Ion Battery. ACS Nano, 13 (10), 11901-11911.

Scopus Eid


  • 2-s2.0-85073149259

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3849

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 11901

End Page


  • 11911

Volume


  • 13

Issue


  • 10

Place Of Publication


  • United States

Abstract


  • Metal oxides can deliver high capacity to Li-ion batteries, surpassing conventional graphite, but they suffer from a huge volume change during charging-discharging and poor cycle life. Herein, we merge the dual strategies of 3D-network support and sandwiching design to tackle such issue. We develop a skillful O2-NH3 reactive pyrolysis of cellulose, where the preoxidation and the aminolysis result in the spatially separated charring of cellulose chains. A cellulose fiber is wonderfully converted into several ultrathin twisted graphenic sheets instead of a dense carbon fiber, and consequently, a cellulose paper is directly transformed into a porous flexible carbon paper with high surface area and conductivity (denoted as CP). CP is further fabricated as a 3D-network support into the hybrid CP@Fe3O4@RGO, where RGO is reduced graphene oxide added for sandwiching Fe3O4 particles. As a binder-free free-standing anode, CP@Fe3O4@RGO effectively fastens Fe3O4 and buffers the volume changes on cycling, which stabilizes the passivating layer and lifts the Coulombic efficiency. The anode thus presents an ultralong cycle life of >2000 running at a high capacity level of 1160 mAh g-1. It additionally facilitates electron and ion transports, boosting the rate capability. CP and CP@Fe3O4@RGO represent a technological leap underpinning next-generation long-life high-capacity high-power batteries.

UOW Authors


  •   Gao, Tian (external author)
  •   Xu, Chenyang (external author)
  •   Li, Ruiqing (external author)
  •   Zhang, Ran (external author)
  •   Wang, Baolu (external author)
  •   Jiang, Xiangfen (external author)
  •   Hu, Ming (external author)
  •   Bando, Yoshio
  •   Kong, Desheng (external author)
  •   Dai, Pengcheng (external author)
  •   Wang, Xue (external author)

Publication Date


  • 2019

Citation


  • Gao, T., Xu, C., Li, R., Zhang, R., Wang, B., Jiang, X., Hu, M., Bando, Y., Kong, D., Dai, P. & Wang, X. (2019). Biomass-Derived Carbon Paper to Sandwich Magnetite Anode for Long-Life Li-Ion Battery. ACS Nano, 13 (10), 11901-11911.

Scopus Eid


  • 2-s2.0-85073149259

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3849

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 11901

End Page


  • 11911

Volume


  • 13

Issue


  • 10

Place Of Publication


  • United States