Cost and Performance Model for Redox Flow Batteries

Journal Article · Sat Feb 01 00:00:00 EST 2014 · Journal of Power Sources, 247:1040-1051

DOI:https://doi.org/10.1016/j.jpowsour.2012.12.023· OSTI ID:1123236

Viswanathan, Vilayanur V.; Crawford, Aladsair J.; Stephenson, David E.; Kim, Soowhan; Wang, Wei; Li, Bin; Coffey, Greg W.; Thomsen, Edwin C.; Graff, Gordon L.; Balducci, Patrick J.; Kintner-Meyer, Michael CW; Sprenkle, Vincent L.

A cost model was developed for all vanadium and iron-vanadium redox flow batteries. Electrochemical performance modeling was done to estimate stack performance at various power densities as a function of state of charge. This was supplemented with a shunt current model and a pumping loss model to estimate actual system efficiency. The operating parameters such as power density, flow rates and design parameters such as electrode aspect ratio, electrolyte flow channel dimensions were adjusted to maximize efficiency and minimize capital costs. Detailed cost estimates were obtained from various vendors to calculate cost estimates for present, realistic and optimistic scenarios. The main drivers for cost reduction for various chemistries were identified as a function of the energy to power ratio of the storage system. Levelized cost analysis further guided suitability of various chemistries for different applications.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1123236
• Report Number(s): PNNL-SA-91534; TE1400000
• Journal Information: Journal of Power Sources, 247:1040-1051, Journal Name: Journal of Power Sources, 247:1040-1051
• Country of Publication: United States
• Language: English

Related Subjects

redox flow
efficiency
shunt current loss
pumping loss
vanadium
iron vanadium