An Environmentally Friendly and Flexible Aqueous Zinc Battery Using an Organic Cathode

作者：Guo, Zhaowei; Ma, Yuanyuan; Dong, Xiaoli; Huang, Jianhang; Wang, Yonggang^*; Xia, Yongyao

来源：Angewandte Chemie - International Edition, 2018, 57(36): 11737-11741.

DOI：10.1002/anie.201807121

• flexible batteries
• low toxicity
• organic electrodes
• wearable devices
• zinc batteries

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.

• 出版日期2018-9-3
• 单位复旦大学