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

Weina Li; Jiaqi Li; Jiahao Wen; Ming Wen; Shipei Chen; Qingsheng Wu; Yongqing Fu

doi:10.1016/j.scib.2019.06.014

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

Sci Bull (Beijing). 2019 Aug 30;64(16):1152-1157. doi: 10.1016/j.scib.2019.06.014. Epub 2019 Jun 14.

Authors

Weina Li¹, Jiaqi Li¹, Jiahao Wen², Ming Wen³, Shipei Chen¹, Qingsheng Wu¹, Yongqing Fu⁴

Affiliations

¹ School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China.
² School of Electrical Engineering, Chongqing University, Chongqing 400044, China.
³ School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, China. Electronic address: m_wen@tongji.edu.cn.
⁴ Faculty of Engineering and Environment, Northumbria University, NE1 8ST, UK.

PMID: 36659686
DOI: 10.1016/j.scib.2019.06.014

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 at a current density of 0.5 A/g after 1,800 cycles, achieving an excellent stable Li⁺-storage capability.

Keywords: Cycling stability; Lithium ion batteries; Sea-sponge-C/SiC@SiC/C; SiC.