A heteropoly acid negolyte that could enhance the performance of aqueous redox flow batteries at low temperatures

https://techxplore.com/news/2022-05-heteropoly-acid-negolyte-aqueous-redox.html

"evaluated heteropoly acid negolytes... high electron solubility, a high conductivity, a low freezing point and high redox kinetics. These qualities are all highly advantageous for the fabrication of ARBSs with a high power density that can operate at low temperatures. Using a 0.5 M HPOM electrolyte, the ARFBs demonstrate power density (282.4 mW cm−2 ) and stability (79.6 Ah l−1 negolyte at 160 mA cm−2 over 1,200 h without decay) at −20 °C, showing promising application potential under cold weather conditions"

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https://www.eurekalert.org/news-releases/1063850

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