A Stable Vanadium Redox-Flow Battery with High Energy Density for Large-Scale Energy Storage (pages 394–400)
Liyu Li, Soowhan Kim, Wei Wang, M. Vijayakumar, Zimin Nie, Baowei Chen, Jianlu Zhang, Guanguang Xia, Jianzhi Hu, Gordon Graff, Jun Liu and Zhenguo Yang
Version of Record online: 11 MAR 2011 | DOI: 10.1002/aenm.201100008
A new vanadium redox flow battery has been developed. 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.