Fe-V redox flow batteries

Title: Fe-V redox flow batteries

A redox flow battery having a supporting solution that includes Cl.sup.- anions is characterized by an anolyte having V.sup.2+ and V.sup.3+ in the supporting solution, a catholyte having Fe.sup.2+ and Fe.sup.3+ in the supporting solution, and a membrane separating the anolyte and the catholyte. The anolyte and catholyte can have V cations and Fe cations, respectively, or the anolyte and catholyte can each contain both V and Fe cations in a mixture. Furthermore, the supporting solution can contain a mixture of SO.sub.4.sup.2- and Cl.sup.- anions.

Inventors:: Li, Liyu; Kim, Soowhan; Yang, Zhenguo; Wang, Wei; Zhang, Jianlu; Chen, Baowei; Nie, Zimin; Xia, Guanguang

Issue Date:: 2014-07-08

OSTI Identifier:: 1140135

Assignee:: Battelle Memorial Institute (Richland, WA) PNNL

Patent Number(s):: 8,771,856

Application Number:: 12/892,698

Contract Number:: AC05-76RL01830

Research Org:: PNNL (Pacific Northwest National Laboratory (PNNL), Richland, WA (United States))

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE

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