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A biomimetic redox flow battery based on flavin mononucleotide

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  • Akihiro Orita

    (University of California, San Diego
    Core Technology Research & Innovation Center, Hitachi Chemical)

  • Michael G. Verde

    (University of California, San Diego)

  • Masanori Sakai

    (Core Technology Research & Innovation Center, Hitachi Chemical)

  • Ying Shirley Meng

    (University of California, San Diego)

Abstract

The versatility in design of redox flow batteries makes them apt to efficiently store energy in large-scale applications at low cost. The discovery of inexpensive organic electroactive materials for use in aqueous flow battery electrolytes is highly attractive, but is thus far limited. Here we report on a flow battery using an aqueous electrolyte based on the sodium salt of flavin mononucleotide. Flavins are highly versatile electroactive molecules, which catalyse a multitude of redox reactions in biological systems. We use nicotinamide (vitamin B3) as a hydrotropic agent to enhance the water solubility of flavin mononucleotide. A redox flow battery using flavin mononucleotide negative and ferrocyanide positive electrolytes in strong base shows stable cycling performance, with over 99% capacity retention over the course of 100 cycles. We hypothesize that this is enabled due to the oxidized and reduced forms of FMN-Na being stabilized by resonance structures.

Suggested Citation

  • Akihiro Orita & Michael G. Verde & Masanori Sakai & Ying Shirley Meng, 2016. "A biomimetic redox flow battery based on flavin mononucleotide," Nature Communications, Nature, vol. 7(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13230
    DOI: 10.1038/ncomms13230
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    Cited by:

    1. Xie, Heping & Wu, Yifan & Liu, Tao & Wang, Fuhuan & Chen, Bin & Liang, Bin, 2020. "Low-energy-consumption electrochemical CO2 capture driven by biomimetic phenazine derivatives redox medium," Applied Energy, Elsevier, vol. 259(C).
    2. Xie, Heping & Gao, Xiaolin & Liu, Tao & Chen, Bin & Wu, Yifan & Jiang, Wenchuan, 2020. "Electricity generation by a novel CO2 mineralization cell based on organic proton-coupled electron transfer," Applied Energy, Elsevier, vol. 261(C).
    3. Liang, Mengjun & Karthick, Ramalingam & Wei, Qiang & Dai, Jinhong & Jiang, Zhuosheng & Chen, Xuncai & Oo, Than Zaw & Aung, Su Htike & Chen, Fuming, 2022. "The progress and prospect of the solar-driven photoelectrochemical desalination," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).

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