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Liqun Zhang , Dr. Qinzhi Lai, Dr. Jianlu Zhang and Prof. Huamin Zhang A High-Energy-Density Redox Flow Battery based on Zinc/Polyhalide Chemistry ChemSusChem 5

Version of Record online: 19 JAN 2012 | DOI: 10.1002/cssc.201100530

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Zn and the Art of Battery Development: A zinc/polyhalide redox flow battery employs Br/ClBr2− and Zn/Zn2+ redox couples in its positive and negative half-cells, respectively. The performance of the battery is evaluated by charge–discharge cycling tests and reveals a high energy efficiency of 81%, based on a Coulombic efficiency of 96% and voltage efficiency of 84%. The new battery technology can provide high performance and energy density at an acceptable cost.

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