期刊
ENERGY STORAGE MATERIALS
卷 16, 期 -, 页码 236-242出版社
ELSEVIER
DOI: 10.1016/j.ensm.2018.06.005
关键词
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资金
- National Natural Science Foundation of China [51772199]
- Six Talent Peaks Project of Jiangsu Province [XCL-063]
- China Postdoctoral Science Foundation [2016M590498]
- Jiangsu Planned Projects for Postdoctoral Research Funds [1601241C, 1701051A]
- Collaborative Innovation Centre of Suzhou Nano Science AMP
- Technology (NANO-CIC)
- Base for Introducing Talents of Discipline to Universities (National 111 Project)
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Organic redox compounds are promising candidates for lithium ion batteries owing to the elemental abundance and structural diversity. However, the low redox potential and chemical bond cleavage/recombination during lithiation/delithiation have significantly limited their practical application. We demonstrate here the manipulation of conjugation to stabilize N redox-active centers in a p-type, two-electron-transfer oligomer of N, N'-diphenyl-5,10-dihydrophenazine as a high-voltage organic battery cathode material, which exhibits high redox potentials of 4.1 and 3.3 V (vs. Li+/Li), good stability, and a galvanometric energy density of ca. 530 Wh kg(-1). The redox active electron localized on the dihydrophenazine unit in this oligomer are believed to contribute to the good electrochemical performances.
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