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Cerium Hydrogen Redox Flow Batteries

Lawrence Berkeley National Laboratory

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Technology Marketing Summary

Researchers Adam Z. Weber and Michael Tucker developed improvements to the Cerium-Hydrogen (Ce-H2) redox flow cell by optimizing cell materials, electrolyte composition and operating protocol to make the Ce-H2 redox flow cell a good candidate for large scale energy storage. 

Description

Researchers Adam Z. Weber and Michael Tucker developed improvements to the Cerium-Hydrogen (Ce-H2) redox flow cell by optimizing cell materials, electrolyte composition and operating protocol to make the Ce-H2 redox flow cell a good candidate for large scale energy storage. The flow cell may also be used in chemical production schemes in which the Ce4+ ion is produced electrochemically and used to promote oxidation in mediated electrosynthesis of high-value chemicals.

 

For energy storage applications, the Berkeley Lab technology has comparable energy efficiency and discharge power to Br2-H2 systems, lower toxicity, negligible vapor pressure of the active positive material, and higher voltage, while using commercially available materials. The optimized cell achieved maximum discharge power of 895 mW/cm2 and up to 90% energy efficiency. Performance of the cell is relatively insensitive to membrane thickness, Cerium concentration, and all features of the negative electrode and hydrogen flow.

Benefits
  • Low self-discharge
  • Commercially available materials
Applications and Industries
  • Grid scale energy storage
  • Potentially, production of high-value chemicals
 
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
2016-051ProposedAvailable02/02/201702/04/2017

Contact LBL About This Technology

To: Suzanne Storar<ipo@lbl.gov>