Publication: Unprecedented Aqueous Solubility of TEMPO and its Application as High Capacity Catholyte for Aqueous Organic Redox Flow Batteries

Our colleagues of IMDEA Energy and Burgos University have published a new journal article in Advanced Energy Materials about the possibility of non-functionalized TEMPO, which is typically insoluble in water, being able to achieve a solubility as high as 5.6 M in a lithium bis(trifluoromethanesulfonyl)imide aqueous solution. This is due to the unique interaction of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) with TFSI anion and allows the development of a high-capacity catholyte based on TEMPO that exhibits efficient and stable performance in both symmetric flow cells and TEMPO/(SPr2)V aqueous organic redox flow battery.

The full article is available here.