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

Chang-Jiang Yao; Jian Xie; Zhenzhen Wu; Zhichuan J Xu; Shanqing Zhang; Qichun Zhang

doi:10.1002/asia.201900520

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

Chem Asian J. 2019 Jul 1;14(13):2210-2214. doi: 10.1002/asia.201900520. Epub 2019 Jun 3.

Authors

Chang-Jiang Yao¹, Jian Xie¹, Zhenzhen Wu^{1

2}, Zhichuan J Xu¹, Shanqing Zhang², Qichun Zhang¹

Affiliations

¹ School of Materials Science and Engineering, Nanyang Technological University (Singapore), 639798, Singapore, Singapore.
² Centre for Clean Environment and Energy, School of Environment and Science, Griffith University, Gold Coast Campus, QLD 4222, Australia.

PMID: 31016880
DOI: 10.1002/asia.201900520

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.

Keywords: cathode materials; copolymers; lithium-ion batteries; polyaniline; pyrene.