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A graphene-modified flexible SiOC ceramic cloth for high-performance lithium storage

Journal Article


Abstract


  • © 2019 Elsevier B.V. The rapid development of portable and wearable electronics requires novel flexible energy storage devices with high energy and power densities. Nevertheless, the fabrication of high-performance flexible electrodes for achieving this goal remains challenging. We herein report a large-area and highly-flexible polymer-derived silicon oxycarbide ceramic (SiOC) fibers cloth modified by quasi three-dimensional graphene framework (3D-GNS/SiOCf) as a flexible anode for lithium ion batteries (LIBs). The SiOC fibers have a hierarchical porous structure and a rough surface to facilitate the insertion/extraction of Li+ ions, while the GNS framework provides a conductive network by bridging the adjacent SiOC fibers and coating the individual SiOC fibers to significantly enhance electron transfer and robust electrochemical Li+ ion storage. Therefore, this 3D-GNS/SiOCf material exhibits a high reversible capacity (924 mAh g-1 at 0.1 A g-1), good rate performance (330 mAh g-1 at 2.0 A g-1), and excellent cycling stability (686 mAh g-1 at 0.5 A g-1 after 500 cycles). A prototype flexible LIB full cell assembled using this anode with LiFePO4 cathode exhibits good performance through a series of bending tests. Consequently, the resultant 3D-GNS/SiOCf anode has great potential for flexible energy storage and sheds light on the design of other flexible devices.

Authors


  •   Sang, Zhiyuan (external author)
  •   Yan, Xiao (external author)
  •   Wen, Lei (external author)
  •   Su, Dong (external author)
  •   Zhao, Zhihao (external author)
  •   Liu, Yue (external author)
  •   Ji, Huiming (external author)
  •   Liang, Ji
  •   Dou, Shi Xue

Publication Date


  • 2020

Citation


  • Sang, Z., Yan, X., Wen, L., Su, D., Zhao, Z., Liu, Y., Ji, H., Liang, J. & Dou, S. (2020). A graphene-modified flexible SiOC ceramic cloth for high-performance lithium storage. Energy Storage Materials, 25 876-884.

Scopus Eid


  • 2-s2.0-85075885553

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3956

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 876

End Page


  • 884

Volume


  • 25

Place Of Publication


  • Netherlands

Abstract


  • © 2019 Elsevier B.V. The rapid development of portable and wearable electronics requires novel flexible energy storage devices with high energy and power densities. Nevertheless, the fabrication of high-performance flexible electrodes for achieving this goal remains challenging. We herein report a large-area and highly-flexible polymer-derived silicon oxycarbide ceramic (SiOC) fibers cloth modified by quasi three-dimensional graphene framework (3D-GNS/SiOCf) as a flexible anode for lithium ion batteries (LIBs). The SiOC fibers have a hierarchical porous structure and a rough surface to facilitate the insertion/extraction of Li+ ions, while the GNS framework provides a conductive network by bridging the adjacent SiOC fibers and coating the individual SiOC fibers to significantly enhance electron transfer and robust electrochemical Li+ ion storage. Therefore, this 3D-GNS/SiOCf material exhibits a high reversible capacity (924 mAh g-1 at 0.1 A g-1), good rate performance (330 mAh g-1 at 2.0 A g-1), and excellent cycling stability (686 mAh g-1 at 0.5 A g-1 after 500 cycles). A prototype flexible LIB full cell assembled using this anode with LiFePO4 cathode exhibits good performance through a series of bending tests. Consequently, the resultant 3D-GNS/SiOCf anode has great potential for flexible energy storage and sheds light on the design of other flexible devices.

Authors


  •   Sang, Zhiyuan (external author)
  •   Yan, Xiao (external author)
  •   Wen, Lei (external author)
  •   Su, Dong (external author)
  •   Zhao, Zhihao (external author)
  •   Liu, Yue (external author)
  •   Ji, Huiming (external author)
  •   Liang, Ji
  •   Dou, Shi Xue

Publication Date


  • 2020

Citation


  • Sang, Z., Yan, X., Wen, L., Su, D., Zhao, Z., Liu, Y., Ji, H., Liang, J. & Dou, S. (2020). A graphene-modified flexible SiOC ceramic cloth for high-performance lithium storage. Energy Storage Materials, 25 876-884.

Scopus Eid


  • 2-s2.0-85075885553

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3956

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 876

End Page


  • 884

Volume


  • 25

Place Of Publication


  • Netherlands