期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 26, 期 12, 页码 2581-2585出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201904773
关键词
batteries; cathodes; conductivity; energy storage; organic polymers
资金
- Institute of Bioengineering and Nanotechnology (Biomedical Research Council, Agency for Science, Technology and Research (A*STAR), Singapore)
Nitrogen-linked hexaazatrinaphthylene polymer (N-2-HATN) as organic cathode material with low HOMO-LOMO gap was synthesized and was observed to possess reversible high capacity and unexpected long-term cycling stability. The pre-treated N-2-HATN and pRGO combination demonstrated good structure compatibility and the resultant cathode exhibited a constant increment of capacity during the redox cycles. The initial capacity at 0.05 A g(-1) was 406 mA h(-1) g(-1), and increased to 630 mA h(-1) g(-1) after 70 cycles. At 0.5 A g(-1) discharging rate, the capacity increased from an initial value of 186 mA h(-1) g(-1) to 588 mA h(-1) g(-1) after 1600 cycles. The pseudocapacitance-type behavior is postulated to be attributed to the structure compatibility between the active material and pRGO.
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