Estimating the system price of redox flow batteries for grid storage

JOURNAL OF POWER SOURCES

卷:296

Article

Ha, Seungbum^1,2  Gallagher, Kevin G.^1,2 

[1] Argonne Natl Lab, Joint Ctr Energy Storage Res, Argonne, IL 60439 USA

[2] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

关键词: Redox flow battery;    Grid storage;    Lithium-ion battery;    Manufacturing cost;    Production volume;   

DOI  :  10.1016/j.jpowsour.2015.07.004

来源: Elsevier

【 摘 要 】

Low-cost energy storage systems are required to support extensive deployment of intermittent renewable energy on the electricity grid. Redox flow batteries have potential advantages to meet the stringent cost target for grid applications as compared to more traditional batteries based on an enclosed architecture. However, the manufacturing process and therefore potential high-volume production price of redox flow batteries is largely unquantified. We present a comprehensive assessment of a prospective production process for aqueous all vanadium flow battery and nonaqueous lithium polysulfide flow battery. The estimated investment and variable costs are translated to fixed expenses, profit, and warranty as a function of production volume. When compared to lithium-ion batteries, redox flow batteries are estimated to exhibit lower costs of manufacture, here calculated as the unit price less materials costs, owing to their simpler reactor (cell) design, lower required area, and thus simpler manufacturing process. Redox flow batteries are also projected to achieve the majority of manufacturing scale benefits at lower production volumes as compared to lithium-ion. However, this advantage is offset due to the dramatically lower present production volume of flow batteries compared to competitive technologies such as lithium-ion. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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