Blatter Radicals as Bipolar Materials for Symmetrical Redox-Flow Batteries

 https://pubs.acs.org/doi/full/10.1021/jacs.1c13543

"use of Blatter radicals in electrochemical energy-storage applications and a stepping stone toward innovative all-organic, symmetrical battery chemistries... 1,2,4-benzotriazin-4-yl radicals combine bipolar electrochemistry high chemical stability in all states of charge... energy-storage materials for symmetric redox-flow batteries... derivatives with a C(3)–CF3 substituent (compounds 3)... minimal capacity fade during battery cycling... stability of charged states (3a+ and 3a–) was confirmed through independent chemical synthe"