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Copper hexacyanoferrate battery electrodes with long cycle life and high power

Author

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  • Colin D. Wessells

    (Stanford University)

  • Robert A. Huggins

    (Stanford University)

  • Yi Cui

    (Stanford University
    Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory)

Abstract

Short-term transients, including those related to wind and solar sources, present challenges to the electrical grid. Stationary energy storage systems that can operate for many cycles, at high power, with high round-trip energy efficiency, and at low cost are required. Existing energy storage technologies cannot satisfy these requirements. Here we show that crystalline nanoparticles of copper hexacyanoferrate, which has an ultra-low strain open framework structure, can be operated as a battery electrode in inexpensive aqueous electrolytes. After 40,000 deep discharge cycles at a 17 C rate, 83% of the original capacity of copper hexacyanoferrate is retained. Even at a very high cycling rate of 83 C, two thirds of its maximum discharge capacity is observed. At modest current densities, round-trip energy efficiencies of 99% can be achieved. The low-cost, scalable, room-temperature co-precipitation synthesis and excellent electrode performance of copper hexacyanoferrate make it attractive for large-scale energy storage systems.

Suggested Citation

  • Colin D. Wessells & Robert A. Huggins & Yi Cui, 2011. "Copper hexacyanoferrate battery electrodes with long cycle life and high power," Nature Communications, Nature, vol. 2(1), pages 1-5, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1563
    DOI: 10.1038/ncomms1563
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    Cited by:

    1. Tang, Xin & Li, Guiqiang & Zhao, Xudong, 2021. "Effect of air gap on a novel hybrid photovoltaic/thermal and thermally regenerative electrochemical cycle system," Applied Energy, Elsevier, vol. 293(C).
    2. Qi Dang & Wei Zhang & Jiqing Liu & Liting Wang & Deli Wu & Dejin Wang & Zhendong Lei & Liang Tang, 2023. "Bias-free driven ion assisted photoelectrochemical system for sustainable wastewater treatment," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    3. Xiao Zhu & Tuan K. A. Hoang & Pu Chen, 2017. "Novel Carbon Materials in the Cathode Formulation for High Rate Rechargeable Hybrid Aqueous Batteries," Energies, MDPI, vol. 10(11), pages 1-17, November.
    4. Tang, Xin & Li, Guiqiang & Zhao, Xudong, 2021. "Performance analysis of a novel hybrid electrical generation system using photovoltaic/thermal and thermally regenerative electrochemical cycle," Energy, Elsevier, vol. 232(C).
    5. Tang, Xin & Li, Guiqiang & Zhao, Xudong & Shi, Kai & Lao, Li, 2022. "Simulation analysis and experimental validation of enhanced photovoltaic thermal module by harnessing heat," Applied Energy, Elsevier, vol. 309(C).

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