AI Article Synopsis
- The vanadium redox flow battery is a leading option for large-scale energy storage, yet high manufacturing costs for its vanadium electrolyte pose a barrier to commercialization.
- A new method using formic acid and Pt/C catalyst was developed, allowing for the production of high-quality, impurity-free vanadium electrolyte.
- A prototype reactor was designed for continuous, efficient electrolyte production, potentially lowering costs while maintaining performance standards.
Article Abstract
The vanadium redox flow battery is considered one of the most promising candidates for use in large-scale energy storage systems. However, its commercialization has been hindered due to the high manufacturing cost of the vanadium electrolyte, which is currently prepared using a costly electrolysis method with limited productivity. In this work, we present a simpler method for chemical production of impurity-free V electrolyte by utilizing formic acid as a reducing agent and Pt/C as a catalyst. With the catalytic reduction of V electrolyte, a high quality V electrolyte was successfully produced and excellent cell performance was achieved. Based on the result, a prototype catalytic reactor employing Pt/C-decorated carbon felt was designed, and high-speed, continuous production of V electrolyte in this manner was demonstrated with the reactor. This invention offers a simple but practical strategy to reduce the production cost of V electrolyte while retaining quality that is adequate for high-performance operations.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6764956 | PMC |
| http://dx.doi.org/10.1038/s41467-019-12363-7 | DOI Listing |
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