Two-dimensional metal-organic framework nanosheets-modified porous separator for non-aqueous redox flow batteries

Jiashu Yuan, Cuijuan Zhang, Tao Liu, Yihan Zhen, Zheng Ze Pan, Yongdan Li

研究成果: Article査読

10 被引用数 (Scopus)

抄録

Non-aqueous redox flow batteries (NARFBs) are promising for large-scale energy storage. However, the lack of high performance membrane is still impeding their further development. Two-dimensional (2D) metal-organic framework (MOF) nanosheets-modified porous separators are prepared by the filtration method. The NARFBs constructed with the 2D MOF nanosheets-modified separator exhibit substantially higher Coulombic efficiency (91.0% vs 82.9%) without obvious compromise on voltage efficiency (93.7% vs 94.2%), and larger average discharge capacity (1.30 vs 0.86 Ah L−1) compared with the pristine Celgard separator at 4 mA cm−2. Such performance is originated from the unique microstructure of 2D-MOF nanosheets. The interlayer spaces assembled by the nanosheet layers enable the fast transport of supporting electrolyte but impede the crossover of active materials and impose limited effect on the separator resistance. This work provides a facile and efficient strategy to mitigating the crossover effect in NARFB.

本文言語English
論文番号118463
ジャーナルJournal of Membrane Science
612
DOI
出版ステータスPublished - 2020 10月 15
外部発表はい

ASJC Scopus subject areas

  • 生化学
  • 材料科学(全般)
  • 物理化学および理論化学
  • ろ過および分離

フィンガープリント

「Two-dimensional metal-organic framework nanosheets-modified porous separator for non-aqueous redox flow batteries」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル