A conjugated copolymer of N‐Phenyl‐p‐phenylenediamine and pyrene as promising cathode for rechargeable Lithium–ion batteries

Abstract

A novel conjugated copolymer has been synthesized and employed as an organic cathode material in rechargeable Lithium-ion batteries (LIBs). Due to the synergistic effects from conducting aniline and pyrene units, the resultant batteries based on the as-obtained copolymer can deliver a promising reversible specific capacity of 113 mAh g-1 with a high voltage output of 3.2 V and a remarkable 75.2 % capacity retention after 180 cycles. Moreover, an excellent rate performance is also achieved with a fast recovery of the capacity at different current densities.