An Environmentally Friendly and Flexible Aqueous Zinc Battery Using an Organic Cathode
An Environmentally Friendly and Flexible Aqueous Zinc Battery Using an Organic Cathode
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一种采用有机正极的环保柔性水系锌电池
DOI：
10.1002/anie.201807121
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发表时间：
2018-09-03
影响因子：
16.6
通讯作者：
Xia, Yongyao
中科院分区：
文献类型：
--
作者：
Guo, Zhaowei;Ma, Yuanyuan;Xia, Yongyao
可充电电池已被用于为各种电气设备供电并存储来自可再生能源的能量，但其有毒成分（即，电极材料、电解质和隔膜）在废弃时通常会导致严重的环境问题。这种毒性特性使得它们难以为未来的可穿戴电子设备供电。本文介绍了一种以锌为阳极、芘-4，5，9，10-四酮（PTO）为阴极、温和电解液为电解液的环境友好型高安全性可充电电池。PTO阴极显示出高的比容量（336 mAh g（-1）），用于具有快速动力学和高可逆性的Zn 2+存储。因此，PTO//Zn全电池表现出高能量密度（186.7Wh kg（-1））、类似超级电容器的功率行为和长寿命（超过1000次循环）。此外，带状PTO//锌电池具有强大的机械耐久性和显着的灵活性，首次制造，以阐明其在可穿戴电子设备的潜在应用。
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.