Asymmetric vanadium-based aqueous flow batteries

Book · Mon Jan 09 04:00:00 EST 2023

DOI:https://doi.org/10.1002/9783527832767.ch31· OSTI ID:2229127

Kim, Soowhan ^[1]; Yan, Litao ^[1]; Wang, Wei ^[1]

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1. BATTELLE (PACIFIC NW LAB)

Vanadium redox couples (V(II)/V(III) on a negative electrode or V(IV)/V(V) on a positive electrode) can be paired with other redox couples to form novel flow batteries (FBs). As an anolyte, the V(II)/V(III) redox couple can be paired with iron, manganese, cobalt, and cerium redox couples to form novel vanadium-iron (V-Fe), vanadium-manganese (V-Mn), vanadium-cobalt (V-Co), and vanadium-cerium (V-Ce) FBs, respectively. The V(IV)/V(V) redox couple as a catholyte can be coupled with hydrogen to form a vanadium hydrogen (V-H2) FB. In those new redox chemistries, redox reactions, energy density, round-trip efficiencies, crossover issues, and cell components (i.e., separator, ion exchange membrane, and electrode) are different from an all-vanadium flow battery discussed in previous chapters, and thus warrant a detailed discussion.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 2229127
• Report Number(s): PNNL-SA-181361
• Country of Publication: Germany
• Language: English

Related Subjects

Vanadium
V-Fe
V-Ce
V-Co