The complexation of silicon with carbon materials is considered an effective method for using silicon as an anode material for lithium-ion batteries. In the present study, carbon frameworks with a 3D porous structure were fabricated using metal–organic frameworks (MOFs), which have been drawing significant attention as a promising material in a wide range of applications. Subsequently, the fabricated carbon frameworks were subjected to CVD to obtain silicon-carbon complexes. These siliconcarbon complexes with a 3D porous structure exhibited excellent rate capability because they provided sufficient paths for Li-ion diffusion while facilitating contact with the electrolyte. In addition, unoccupied space within the silicon complex, combined with the stable structure of the carbon framework, allowed the volume expansion of silicon and the resultant stress to be more effectively accommodated, thereby reducing electrode expansion. The major findings of the present study demonstrate the applicability of MOF-based carbon frameworks as a material for silicon complex anodes.

Designing of 3D porous siliconcarbon complex anode based on metal-organic frameworks for lithium-ion battery
    Abstract
    1 Introduction
    2 Experimental procedures
        2.1 Synthesis of honeycomb porous carbon (HC)
        2.2 Synthesis of carbon-coated honeycomb porous carbon silicon (CHCS)
        2.3 Characterization
        2.4 Electrochemical characterization
    3 Results and discussion
    4 Conclusions
    Anchor 11
    Acknowledgements 
    References

• Won Jun Ahn(C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea, Department of Applied Chemical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea)
• Byeong Hyeon Park(Department of Chemical and Biomolecular Engineering, Pusan National University, Geumjeong‑gu, Busan 46241, Republic of Korea)
• Sang Wan Seo(C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea, Department of Applied Chemical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea)
• Seok Kim(Department of Chemical and Biomolecular Engineering, Pusan National University, Geumjeong‑gu, Busan 46241, Republic of Korea)
• Ji Sun Im(C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea, Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea)