We designed and synthesized nitrogen abundant COF through an irreversible SNAr reaction between 1,4,5,8,9,11-Hexaazatriphenylenehexacarbonitrile (HAT-CN) and 3,3'-Diaminobenzidine (DAB) to yield HAT-DAB. The reaction gives a COF framework which is abundant in phenazine (-C=N-) and phenylimino(-NH-) moieties. These groups are essential in the process of Li + intercalation through the formation of various redox couples. The COF shows exceptional stability in strongly acidic and basic conditions. As a cathode material, our COF, HAT-DAB shows the highest specific capacity of 265 mAh/g at 0.02 A/g current density for the LIB applications. Interestingly, at a high current density of 1C, a capacity of ~98 mAh/g were delivered, indicating the excellent charge transfer kinetic, the presence of Li + ion transport channel and faster redox activities owing to COF structure. The HAT-DAB COF as a novel and pristine material demonstrates ~98% Coulombic efficiency even after 200 cycles. The slight capacity fading observed was further analyzed using non-destructive electrochemical impedance spectroscopy (EIS), revealing that electrical conductivity could be enhanced by incorporating conductive additives such as carbon nanotubes (CNTs) or reduced graphene oxide (rGO). Notably, this material achieved a remarkably high energy density of 607 Wh/kg, surpassing other reported COF materials.