Exploiting Polythiophenyl-Triazine-Based Conjugated Microporous Polymer with Superior Lithium Storage Performance.

Conjugated microporous polymers (CMPs) have been heralded as promising energy storage materials with advantages such as chemical flexibility, porous structure and environmentally friendliness. Herein, we synthesized a novel conjugated microporous polymer by integrating triazine, thiophene and benzothiadiazole into a polymer skeleton and investigated the Li + ions storage performance for the as-synthesized polymer anode in Li-ion batteries (LIBs). Benefiting from the inherent large surface area, plentiful redox-active units and the hierarchical porous structure, the polymer anode delivers a high Li + ions storage capacity up to 1599 mAh g - 1 at a current rate of 50 mA g - 1 with an excellent rate behavior (363 mAh g - 1 at 5 A g - 1 ), and a long-term cyclability of 326 mAh g - 1 over 1500 cycles at 5 A g - 1 , implying that the newly developed polymer anode offers a great prospect for the next-generation LIBs.