A Conjugated Copolymer of N‐Phenyl‐p‐phenylenediamine and Pyrene as Promising Cathode for Rechargeable Lithium–Ion Batteries

• Published in: Chemistry, an Asian journal Vol. 14; no. 13; pp. 2210 - 2214
• Main Authors: Yao, Chang‐Jiang, Xie, Jian, Wu, Zhenzhen, Xu, Zhichuan J., Zhang, Shanqing, Zhang, Qichun
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.07.2019
• Subjects: Aniline; cathode materials; Cathodes; Chemistry; Copolymers; Electrode materials; High voltages; Lithium; lithium-ion batteries; Phenylenediamine; polyaniline; pyrene; Rechargeable batteries; copolymers; cathode materials; lithium-ion batteries; polyaniline; pyrene
• ISSN: 1861-4728; 1861-471X
• DOI: 10.1002/asia.201900520

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. A novel conjugated copolymer has been employed as an organic electrode material in rechargeable lithium–ion batteries (LIBs). The as‐obtained copolymer can deliver a reversible specific capacity of 113 mAh g−1 with a 75.2 % capacity retention after 180 cycles. A good rate performance is also obtained with a fast recovery of the capacity after testing at different current densities.