Hollow nanostructure of sea-sponge-C/SiC@SiC/C for stable Li+-storage capability

Li, Weina, Li, Jiaqi, Wen, Jiahao, Wen, Ming, Chen, Shipei, Wu, Qingsheng and Fu, Richard (2019) Hollow nanostructure of sea-sponge-C/SiC@SiC/C for stable Li+-storage capability. Science Bulletin, 64 (16). pp. 1152-1157. ISSN 2095-9273

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Abstract

For the purpose of stable performance in energy storage systems, a new hollow nanostructure of sea-sponge-C/SiC@SiC/C (SCS/SiC@SiC/C) has been successfully fabricated by the SCS/SiC nanospheres coated with SiC/C shells through an in situ reduction process. Based on SCSs and the carbon shells, the stable hollow structures of SCS/SiC@SiC/C can contain large proportion of active SiC layers, which are adhered to both SCSs and the inner surfaces of carbon shells. Such nanostructured anode enables an excellent cycling stability with a capacity of 612 mAh g-1 at a current density of 0.5 A/g after 1,800 cycles, achieving an excellent stable Li+-storage capability.

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