期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 36, 页码 11737-11741出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201807121
关键词
flexible batteries; low toxicity; organic electrodes; wearable devices; zinc batteries
资金
- National Natural Science Foundation of China [21622303, 21333002]
- State Key Basic Research Program of China [2016YFA0203302]
Rechargeable batteries have been used to power various electric devices and store energy from renewables, but their toxic components (namely, electrode materials, electrolyte, and separator) generally cause serious environment issues when disused. Such toxicity characteristic makes them difficult to power future wearable electronic devices. Now an environmentally friendly and highly safe rechargeable battery, based on a pyrene-4,5,9,10-tetraone (PTO) cathode and zinc anode in mild aqueous electrolyte is presented. The PTO-cathode shows a high specific capacity (336 mAh g(-1)) for Zn2+ storage with fast kinetics and high reversibility. Thus, the PTO//Zn full cell exhibits a high energy density (186.7Wh kg(-1)), supercapacitor-like power behavior and long-term lifespan (over 1000 cycles). Moreover, a belt-shaped PTO//Zn battery with robust mechanical durability and remarkable flexibility is first fabricated to clarify its potential application in wearable electronic devices.
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