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Environmental and Energy Engineering
High-energy density flow battery validation
Article first published online: 2 AUG 2010
DOI: 10.1002/aic.12390
Copyright © 2010 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Suppes, G. J., Sawyer, B. D. and Gordon, M. J. (2011), High-energy density flow battery validation. AIChE J., 57: 1961–1967. doi: 10.1002/aic.12390
Publication History
- Issue published online: 9 JUN 2011
- Article first published online: 2 AUG 2010
- Accepted manuscript online: 2 AUG 2010 12:00AM EST
- Manuscript Revised: 13 JUL 2010
- Manuscript Received: 12 FEB 2010
Funded by
- National Science Foundation. Grant Number: Award 0940720
- Abstract
- Article
- References
- Cited By
Keywords:
- battery;
- flow;
- energy;
- packed-bed electrode;
- electrolyte
Abstract
A zinc-alkaline flow cell was used to validate a new type of flow battery in which all reagents and products remain as solids on the electrodes. In every case, flow of electrolyte reduced overpotential losses when compared with operation without electrolyte flow. Large separation distances between the electrodes resulting from larger sections of separating tubing led to increased overpotential losses. A mass transfer mechanism is proposed that substantiates increasing overpotential with increasing electrode separation distances. Based on this mechanism, it was hypothesized that ion exchange packing would reduce the overpotential losses; this hypothesis was experimentally validated. © 2010 American Institute of Chemical Engineers AIChE J, 2011