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A Stable Vanadium Redox-Flow Battery with High Energy Density for Large-Scale Energy Storage

  1. Liyu Li*,
  2. Soowhan Kim,
  3. Wei Wang,
  4. M. Vijayakumar,
  5. Zimin Nie,
  6. Baowei Chen,
  7. Jianlu Zhang,
  8. Guanguang Xia,
  9. Jianzhi Hu,
  10. Gordon Graff,
  11. Jun Liu,
  12. Zhenguo Yang*

Article first published online: 11 MAR 2011

DOI: 10.1002/aenm.201100008

Issue

Advanced Energy Materials

Advanced Energy Materials

Volume 1, Issue 3, pages 394–400, May, 2011

Additional Information

How to Cite

Li, L., Kim, S., Wang, W., Vijayakumar, M., Nie, Z., Chen, B., Zhang, J., Xia, G., Hu, J., Graff, G., Liu, J. and Yang, Z. (2011), A Stable Vanadium Redox-Flow Battery with High Energy Density for Large-Scale Energy Storage. Adv. Energy Mater., 1: 394–400. doi: 10.1002/aenm.201100008

Author Information

  1. Pacific Northwest National Laboratory, 902 Battelle Blvd, P.O. Box 999, Richland, WA 99354, USA

*Pacific Northwest National Laboratory, 902 Battelle Blvd, P.O. Box 999, Richland, WA 99354, USA.

Publication History

  1. Issue published online: 12 MAY 2011
  2. Article first published online: 11 MAR 2011
  3. Manuscript Revised: 12 FEB 2011
  4. Manuscript Received: 5 JAN 2011

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Keywords:

  • batteries;
  • redox flow battery;
  • vanadium;
  • energy storage

Abstract

The all-vanadium redox flow battery is a promising technology for large-scale renewable and grid energy storage, but is limited by the low energy density and poor stability of the vanadium electrolyte solutions. A new vanadium redox flow battery with a significant improvement over the current technology is reported in this paper. This battery uses sulfate-chloride mixed electrolytes, which are capable of dissolving 2.5 M vanadium, representing about a 70% increase in energy capacity over the current sulfate system. More importantly, the new electrolyte remains stable over a wide temperature range of −5 to 50 °C, potentially eliminating the need for electrolyte temperature control in practical applications. This development would lead to a significant reduction in the cost of energy storage, thus accelerating its market penetration.

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