Abstract
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.
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