A nitrogen‐rich 2D sp2‐carbon‐linked conjugated polymer framework as a high‐performance cathode for lithium‐ion batteries

Xu, S., Wang, G., Biswal, B.P., Addicoat, M. ORCID: 0000-0002-5406-7927, Paasch, S., Sheng, W., Zhuang, X., Brunner, E., Heine, T., Berger, R. and Feng, X., 2019. A nitrogen‐rich 2D sp2‐carbon‐linked conjugated polymer framework as a high‐performance cathode for lithium‐ion batteries. Angewandte Chemie, 131 (3), pp. 859-863. ISSN 0044-8249

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Abstract

A two‐dimensional (2D) sp2‐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 sp2 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.

Item Type:	Journal article
Publication Title:	Angewandte Chemie
Creators:	Xu, S., Wang, G., Biswal, B.P., Addicoat, M., Paasch, S., Sheng, W., Zhuang, X., Brunner, E., Heine, T., Berger, R. and Feng, X.
Date:	2019
Volume:	131
Number:	3
ISSN:	0044-8249
Identifiers:	Number Type 10.1002/ange.201812685 DOI
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	29 Jan 2019 11:51
Last Modified:	12 Mar 2019 13:43
URI:	https://irep.ntu.ac.uk/id/eprint/35709

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