Vanadium flow batteries are one of the most promising technologies for large-scale energy storage, due to their long cycle life, excellent recyclability, and low fire risk. However, their uptake is largely limited due to their low energy densities compared to lithium-ion technology as well as high upfront cost.
Now, a team of researchers from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences has developed a 70 kW-level high-power density vanadium flow battery stack. Compared with the current 30 kW-level stack, the new one comes at a 40% lower cost.
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