Journal of Inorganic Materials, Volume. 37, Issue 9, 1016(2022)

ZIF-8-derived Three-dimensional Silicon-carbon Network Composite for High-performance Lithium-ion Batteries

Nana SU1... Jingru HAN1, Yinhao GUO1, Chenyu WANG1, Wenhua SHI1, Liang WU1, Zhiyi HU1,2, Jing LIU1, Yu LI1,2,*, and Baolian SU13 |Show fewer author(s)
Author Affiliations
  • 11. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • 22. Nanostructure Research Centre (NRC), Wuhan University of Technology, Wuhan 430070, China
  • 33. Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, Namur B-5000, Belgium
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    Lithium-ion batteries (LIBs) are widely applied to various portable electronic devices and new energy vehicles. However, the traditional graphite anode with low theoretical capacity (372 mAh/g) is unable to meet the need of the rapid development of economy and society. Herein, a zinc-based metallic organic framework (ZIF-8) derived three-dimensional network carbon coated silicon (Si@NC) composite was designed for lithium-ion battery. Firstly, the surface of nano-silicon was chemical modified; secondly, small size ZIF-8 was in situ grown on the silicon surface to form Si@ZIF-8; finally, the three-dimensional network Si@NC composite was obtained by carbonization. Results show that the three-dimensional network porous structure of the Si@NC composite not only limits the volume expansion of silicon, but greatly improves the conductivity of the materials, exhibiting excellent cycle stability and outstanding rate performance. As a result, a discharge specific capacity of 760 mAh/g is maintained at a high current density of 5 A/g. Using commercial material as cathode and Si@NC as anode, the assembled full LIBs demonstrate a capacity retention of 60.4% at 0.4C (1C =160 mA/g) for 50 cycles. These results indicate that the as-synthesized three-dimensional network porous structure of Si@NC composite has a potential practical application for LIBs.

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    Nana SU, Jingru HAN, Yinhao GUO, Chenyu WANG, Wenhua SHI, Liang WU, Zhiyi HU, Jing LIU, Yu LI, Baolian SU. ZIF-8-derived Three-dimensional Silicon-carbon Network Composite for High-performance Lithium-ion Batteries[J]. Journal of Inorganic Materials, 2022, 37(9): 1016

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Dec. 3, 2021

    Accepted: --

    Published Online: Jan. 12, 2023

    The Author Email: LI Yu (yu.li@whut.edu.cn)

    DOI:10.15541/jim20210739

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