Tuning electron delocalization of hydrogen-bonded organic framework cathode for high-performance zinc-organic batteries.

ABSTRACT: Stable cathodes with multiple redox-active centres affording a high energy density, fast redox kinetics and a long life are continuous pursuits for aqueous zinc-organic batteries. Here, we achieve a high-performance zinc-organic battery by tuning the electron delocalization within a designed fully conjugated two-dimensional hydrogen-bonded organic framework as a cathode material. Notably, the intermolecular hydrogen bonds endow this framework with a transverse two-dimensional extended stacking network and structural stability, whereas the multiple C = O and C = N electroactive centres cooperatively trigger multielectron redox chemistry with super delocalization, thereby sharply boosting the redox potential, intrinsic electronic conductivity and redox kinetics. Further mechanistic investiga

SUBMITTER: Li W 

PROVIDER: S-EPMC10462634 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature