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Partic. vol. 56 pp. 84-90 (June 2021)
doi: 10.1016/j.partic.2020.10.007

Efficient fluidization intensification process to fabricate in-situ dispersed (SiO + G)/CNTs composites for high-performance lithium-ion battery anode applications

Hebang Shia,b, He Zhangc, Chaoquan Hua,b,d, Shaofu Lia,b,d, Maoqiao Xianga, Pengpeng Lva,b,*, Qingshan Zhua,b,*

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    • A process intensification method was used to prepare SiO anodes. • The introduction of graphite can significantly improve the fluidization of SiO. • The 3D network formed by CNTs/G enhanced the structural stability of the composite.


An efficient fluidization process intensification method was proposed to prepare carbon nanotube (CNT)-enhanced high-performance SiO anodes for lithium-ion batteries. The introduction of graphite particles decreased bonding among SiO particles, inhibiting agglomerate growth and enhancing fluidization. The (SiO + G)/CNTs composites were synthesized by fluidized bed chemical vapor deposition with the CNTs grown in-situ, which ensured uniform dispersion and superior anchoring of the CNTs. The in-situ-grown CNTs and stacked graphite ensured excellent structural stability and conductivity. The synthesized (SiO + G)/CNTs delivered a stable reversible capacity of 466 mAh g−1 after 125 cycles and a capacity of ∼200 mAh g−1 at 2 A g−1. The charging results indicated that the 3D network structure comprising CNTs and graphite not only effectively buffered the electrode expansion but also greatly improved mechanical flexibility.

Graphical abstract


Process intensification; Fluidized bed chemical vapor deposition; Carbon nanotubes; Silicon suboxide anode