4.6 Article

Free-standing N-doped composite carbon nanofibers anode with high SiO loading for flexible lithium-ion battery

Journal

MATERIALS LETTERS
Volume 333, Issue -, Pages -

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ELSEVIER
DOI: 10.1016/j.matlet.2022.133554

Keywords

Flexible lithium-ion battery; Self-supporting anode; Energy storage and conversion; Composite materials

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This work proposes a high SiO loading and free-standing N-doped composite nanofiber fabric by hybrid electmspinning, carbonization and gel solution impregnation. The 3D hierarchical conductive network enhances the conductivity of both the electrons and ions, and protects the SiO from structure collapse. The composite gains bending resistance and a high specific capacity of similar to 670 mAh.g(-1) at 160 mA.g(-1) after 95 cycles. The composite conductive gel-coated SiO/CNFs fabric provides an effective strategy for flexible lithium-ion batteries.
In spite of its wonderful mechanical flexibility and conductivity, the highly oriented and continuous carbon nanofibers (CNFs) fabric has been hindered from widespread use, due to the low energy density. This work proposes a high SiO loading and free-standing N-doped composite nanofiber fabric by hybrid electmspinning, carbonization and gel solution impregnation. The 3D hierarchical conductive network enhances the conductivity of both the electrons and ions, and protects the SiO from structure collapse. The composite gains bending resistance and a high specific capacity of similar to 670 mAh.g(-1) at 160 mA.g(-1) after 95 cycles. The composite conductive gel-coated SiO/CNFs fabric provides an effective strategy for flexible lithium-ion batteries.

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