Arylamine‐Linked Porous Organic Polymers with Abundant Redox‐Active Sites as High‐Capacity and High‐Rate Organic Cathodes for Lithium‐Ion Batteries

Abstract Redox‐active porous organic polymers (POPs) have emerged as promising and sustainable organic cathode materials (OCMs) for lithium‐ion batteries (LIBs). However, their performance is significantly limited by insufficient redox‐active sites and low intrinsic conductivity. Herein, a series of novel arylamine‐linked and bipolar POPs (denoted as HATN‐AQ, HATN‐BQ, HATN‐CBD, and HATN‐PTO) are designed and prepared as OCMs for LIBs. Benefiting from their high density of redox‐active sites, bipolar feature, and arylamine linkage, these POPs exhibited high capacity, high rate, and excellent long‐term cycling stability. Among them, HATN‐PTO displayed an ultrahigh reversible capacity of 329.6 mAh g −1 at 0.2 A g…

• NN
  National Natural Science Foundation of China

  Awards: 51925308, 52103328
• SY
  Sun Yat-sen University

  Awards: 23yxqntd002, 23ptpy49
• NK
  National Key Research and Development Program of China

  Award: 2021YFF0500603
• FR
  Fundamental Research Funds for the Central Universities

  Awards: 23yxqntd002, 23ptpy49
• BA
  Basic and Applied Basic Research Foundation of Guangdong Province

  Award: 2020A1515110575