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.

Recent advances of covalent organic frameworks in lithium ion batteries

“…In general, COFs show great potential in the application of batteries. In addition to having the advantages of polymers, [71][72][73][74] their robust frameworks as well as porous channel structures endow them with excellent cycling stability and rate performance. However, the development of COFs is still facing numerous challenges, mainly as follows.…”

Recent Advance in Ionic‐Liquid‐Based Electrolytes for Rechargeable Metal‐Ion Batteries

“…LIBs are the most widely used battery systems and their success in the field of consumer electronics and electric vehicles has been witnessed. [82][83][84][85][86][87][88][89][90] At present, the high energy density of LIBs requires to cramp more Li + into a limited space. However, since Li is an alkali metal and is chemically reactive, such high Li density in a limited space would bring some uncertainties in safety.…”

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

“…A copolymer of N-phenyl-p-phenylenediamine and pyrene (see Fig. 18) has been suggested for the positive electrode of a lithium-ion battery (Yao et al 2019a).…”