A Stable Vanadium Redox-Flow Battery with High Energy Density for Large-scale Energy Storage

Journal Article · Sun May 01 04:00:00 EDT 2011 · Advanced Energy Materials, 1(3):394-400

DOI:https://doi.org/10.1002/aenm.201190012· OSTI ID:1023182

Li, Liyu; Kim, Soowhan; Wang, Wei; Vijayakumar, M; Nie, Zimin; Chen, Baowei; Zhang, Jianlu; Xia, Guanguang; Hu, Jian Z; Graff, Gordon L; Liu, Jun; Yang, Zhenguo

Low cost, high performance redox flow batteries are highly demanded for up to multi-megawatt levels of renewable and grid energy storage. Here, we report a new vanadium redox flow battery with a significant improvement over the current technologies. This new battery utilizes a sulfate-chloride mixed solution, which is capable of dissolving more than 2.5 M vanadium or about a 70% increase in the energy storage capacity over the current vanadium sulfate system. More importantly, the new electrolyte remains stable over a wide temperature range of -5 to 60oC, potentially eliminating the need of active heat management. Its high energy density, broad operational temperature window, and excellent electrochemical performance would lead to a significant reduction in the cost of energy storage, thus accelerating its market penetration.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1023182
• Report Number(s): PNNL-SA-75871; 36793; TE1400000
• Journal Information: Advanced Energy Materials, 1(3):394-400, Journal Name: Advanced Energy Materials, 1(3):394-400 Journal Issue: 3 Vol. 1; ISSN 1614-6832
• Country of Publication: United States
• Language: English

Related Subjects

Environmental Molecular Sciences Laboratory
energy storage
flow battery
mixed acid electrolyte.
redox flow battery
vanadium