Chai, Jingchao; Lashgari, Amir; Wang, Xiao; Jiang, Jianbing Jimmy published the artcile< Extending the redox potentials of metal-free anolytes: towards high energy density redox flow batteries>, SDS of cas: 581-47-5, the main research area is phenylpyridine energy density redox flow battery metal free anolyte.
Non-aqueous organic redox flow batteries (NORFBs) have emerged as a promising technol. for renewable energy storage and conversion. High capacity and power d. can be achieved by virtue of high solubility and high operating voltage of the organic anolytes and catholytes in organic media. However, the lack of anolyte materials with high redox potentials and their poor electrochem. stability retard the wider application of NORFBs. Here, we investigated an evolutionary design of a set of bipyridines and their analogs as anolytes and examined their performance in full fl ow batteries. Using combined techniques of repeated voltammetry, lower scan rate cyclic voltammetry, proton NMR, and d. functional theory calculations, we could rapidly evaluate the redox potential, stability, and reversibility of these redox candidates. The promising candidates, 4-pyridylpyridinium bis(trifl uoromethanesulfonyl)imide (monoMebiPy) and 4,4′-bipyridine (4,4′-biPy), were subjected to battery cycling. Extended studies of the post-cycling electrolytes were conducted to analyze the pathway of capacity fading and revealed a reduction-promoted Me group shift mechanism for monoMebiPy. A family of easily accessible anolyte mols. with high redox stability and redox potentials was discovered that can be applied in NORFBs.
Journal of the Electrochemical Society published new progress about Battery electrolytes. 581-47-5 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2, SDS of cas: 581-47-5.