期刊
NEW JOURNAL OF CHEMISTRY
卷 41, 期 23, 页码 14539-14544出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nj03315j
关键词
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资金
- National Science Foundation of China [11234013, 21473022, 21673033, 51603028]
- Science and Technology Bureau of Sichuan Province of China [2015HH0033]
- Startup Grant of UESTC [ZYGX2015KYQD058]
- University Grants Committee of HKSAR Area of Excellence Scheme [AoE/P-03/08]
A novel polymer (PTPBQ) with alternating terephthalate (TP) and benzoquinone (BQ) moieties is synthesized for the first time as an organic cathode for Li-ion batteries. Both TP and BQ moieties probably could remain electrochemically active and thus may make PTPBQ realize a maximum 4-electron redox behaviour and a theoretical specific capacity of up to similar to 390 mAh g(-1). In its practical application, Li-ion half cells based on PTPBQ can realize discharge capacities of similar to 110 mAh g(-1) on average for 400 cycles (40 mA g(-1), 0.1C), and similar to 180 mAh g(-1) on average for 200 cycles (80 mA g(-1), 0.2C) when the carbon additive is augmented to 40 wt%.
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