Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201601224
Keywords
bi-functional electrolytes; electrochemistry; heteropolyacids; redox flow batteries
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Funding
- National Natural Science Foundation of China [51422301, 21576007]
- Fundamental Research Funds for the Central Universities
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A tungsten-cobalt heteropolyacid simultaneously acts as the electrolyte in both the positive and negative compartments of an aqueous redox flow battery. The heteropolyacid provides all of the necessary redox pairs and charge carriers for the battery. A high coulombic efficiency of 99% and an energy efficiency of 86% are achieved. Additionally, at a current density of 25 mA cm(-2), a specific energy of 15.4 W h L-1 is obtained.
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