Journal
ACS APPLIED NANO MATERIALS
Volume 1, Issue 3, Pages 1291-1299Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.8b00011
Keywords
BiFeO3 nanoflakes; organic pectin; Na-ion batteries; viscoelastic; hydrothermal
Funding
- National Natural Science Foundation of China [51377138, 11504303, 51702265]
- 863 Program [2014AA032701]
- Sichuan Province Science Foundation [2017JY0057]
- Applied Science and Technology Project of Sichuan Province [2017JY0056]
- Fundamental Research Funds for the Central Universities [2682015QM04]
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Advanced rechargeable Na-ion battery is favored by researchers owing to its relatively low-priced and earth-abundant resource. In this work, BiFeO3 nanoflakes by compositing with organic pectin as an outstanding anode material for rechargeable Na-ion batteries were fabricated by an improved hydrothermal process for the first time. We found that the BiFeO3/pectin nanoflakes as anode hold long life and excellent charge-discharge performance with reversible capacity of 450 mAh g(-1), which can retain 100% capacity after 100 charge-discharge cycles. It is inferred that the excellent performance of Na-ion batteries is contributed to viscoelastic pectin among BiFeO3 crystal lattices. The organic pectin can play a buffer role in the process of BiFeO3 crystal lattices expansion when Na ions inserted, indicating the BiFeO3/pectin nanoflakes are not easily degenerated as anode in Na-ion battery. This work provides great potential for fabricating low-priced and high power density Na-ion batteries for electronic equipment applications.
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