Xu Shunqi, Wang Gang, Biswal Bishnu P, Addicoat Matthew, Paasch Silvia, Sheng Wenbo, Zhuang Xiaodong, Brunner Eike, Heine Thomas, Berger Reinhard, Feng Xinliang
Center for Advancing Electronics Dresden (cfaed) and Department of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01069, Dresden, Germany.
Present address: Max-Planck-Institute for Solid State Research, Stuttgart, Germany.
Angew Chem Int Ed Engl. 2019 Jan 14;58(3):849-853. doi: 10.1002/anie.201812685. Epub 2018 Dec 11.
A two-dimensional (2D) sp -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 carbon-carbon linkage, 2D CCP-HATN hybridized with carbon nanotubes shows a high capacity of 116 mA h g , with high utilization of its redox-active sites and superb cycling stability (91 % after 1000 cycles) and rate capability (82 %, 1.0 A g vs. 0.1 A g ) as an organic cathode material for lithium-ion batteries.
二维(2D)sp -碳连接的共轭聚合物骨架(2D CCP - HATN)具有氮掺杂骨架、周期性双孔结构和高化学稳定性。聚合物主链由六氮杂三亚萘(HATN)和完全通过碳 - 碳双键连接的氰基亚乙烯基单元组成。受益于二维CCP - HATN的形状持久骨架与电化学氧化还原活性HATN以及坚固的sp碳 - 碳键相结合,与碳纳米管杂交的二维CCP - HATN作为锂离子电池的有机正极材料,表现出116 mA h g的高容量,其氧化还原活性位点利用率高,具有出色的循环稳定性(1000次循环后为91%)和倍率性能(82%,1.0 A g相对于0.1 A g)。