A two-dimensional (2D) sp 2 -carbon-linked conjugated polymer framework (2D CCP-HATN) has a nitrogen-doped skeleton, a periodical dual-pore structure and high chemical stability. The polymer backbone consists of hexaazatrinaphthalene (HATN) and cyanovinylene units linked entirely by carbon–carbon double bonds. Profiting from the shape-persistent framework of 2D CCP-HATN integrated with the electrochemical redox-active HATN and the robust sp 2 carbon-carbon linkage, 2D CCP-HATN hybridized with carbon nanotubes shows a high capacity of 116 mA h g −1 , with high utilization of its redox-active sites and superb cycling stability (91 % after 1000 cycles) and rate capability (82 %, 1.0 A g −1 vs. 0.1 A g −1 ) as an organic cathode material for lithium-ion batteries.
Bibliographical noteFunding Information:
We acknowledge financial support from the European Union≫s Horizon 2020 research and innovation program under grant agreement No 696656 (Graphene Flagship Core2), Coordination Networks: Building Blocks for Functional Systems (SPP 1928, COORNET), the Center for Advancing Electronics Dresden (cfaed), the European Social Fund, and the Federal State of Saxony (ESF-Project “GRAPHD”, TU Dresden. X.Z. thanks the financial support from NSFC (51722304, 21720102002, 5171101862). We thank Dr. Tao Zhang, Dr. Kun Xu and Dr. Junzhi Liu, for helpful discussions. We thank Dr. Philipp Schlender for PXRD measurements. We thank Dr. Petr Formanek (Leibniz Institute for Polymer Research, IPF, Dresden) for the TEM measurements.
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