Highly flexible multilayer MXene hollow carbon nanofibers confined with Fe3C particles for high-performance lithium-ion batteries

作者：Lu, Xiaohong; Cheng, Jinbing^*; Zhou, Dawei; Chen, Yichong; Jiang, Hao; Lu, Yang; Zhang, Deyang; Kong, Dezhi; Chu, Paul K.; Yang, Hui Ying^*; Luo, Yongsong^*

来源：Chemical Engineering Journal, 2023, 478: 147366.

DOI：10.1016/j.cej.2023.147366

• MXene fibers
• Fe3C
• Electrospinning
• Lithium-ion battery
• Self-supporting

Designing electrode structures with excellent mechanical properties, fast electrochemical kinetics and stability is important for the development of flexible wearable electrodes. In this paper, a hollow carbon nanofiber composite of Ti3C2Tx MXene and Fe3C nanoparticles is designed. The synergistic effect of Ti3C2Tx MXene and Fe3C nanoparticles forms a strong conductive channel with the hollow channel to form a dual conductive channel, which plays an important role in the preparation of high-performance lithium-ion batteries. Benefiting from the advantages of the above structure, the Fe3C@MXene/hollow multichannel carbon fibers (Fe3C@MXene/HMCFs) electrodes at a current density of 0.2 A/g achieve an initial capacity of 1294 mA h g-1 and a high reversible capacity of 831 mA h g-1 after 200 turns of charge/discharge cycles.

• 单位
  郑州大学