Flexible Fe 3 O 4 nanoparticles/N-doped carbon nanofibers hybrid film as binder-free anode materials for lithium-ion batteries

Liangui Guo, Hao Sun, Caiqin Qin, Wei Li*, Feng Wang, Wulin Song, Jun Du, Fei Zhong, Yu Ding

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

The energy and power density of lithium-ion batteries (LIBs) can be effectively improved by designing flexible free-standing electrodes. Here, a flexible film composed of Fe 3 O 4 nanoparticles (NPs) embedded in N-doped carbon nanofibers (Fe 3 O 4 /NCNFs) was prepared through electrospinning and subsequent annealing process. The Fe 3 O 4 /NCNFs film can be directly used as anode materials for LIBs without conductive additive, current collector, and binder. Electrochemical measurement results indicate that the Fe 3 O 4 /NCNFs electrode exhibits excellent cycling stability and retains the capacity of 522 mAh g −1 after 200 cycles at 0.1 A g −1 . Furthermore, the Fe 3 O 4 /NCNFs electrode also shows good rate performance and still obtains a specific capacity of 407 mAh g −1 even at 5 A g −1 . The superior electrochemical performance should be attributed to the flexible self-standing characteristic of the electrode and the synergistic effects between 3D conductive NCNFs and Fe 3 O 4 NPs.

Original languageEnglish
Pages (from-to)263-270
Number of pages8
JournalApplied Surface Science
Volume459
DOIs
Publication statusPublished - 30 Nov 2018
Externally publishedYes

Keywords

  • Electrochemical performance
  • Fe O /C nanofibers
  • Flexible free-standing
  • Lithium-ion battery

Fingerprint

Dive into the research topics of 'Flexible Fe 3 O 4 nanoparticles/N-doped carbon nanofibers hybrid film as binder-free anode materials for lithium-ion batteries'. Together they form a unique fingerprint.

Cite this