电解质
阳极
材料科学
阴极
水溶液
超级电容器
电化学
易燃液体
储能
灵活性(工程)
纳米技术
化学工程
电极
化学
功率(物理)
工程类
物理化学
物理
有机化学
统计
量子力学
数学
作者
Zhaowei Guo,Yang Zhao,Yuxue Ding,Xiaoli Dong,Long Chen,Jingyu Cao,Changchun Wang,Yongyao Xia,Huisheng Peng,Yonggang Wang
出处
期刊:Chem
[Elsevier]
日期:2017-08-01
卷期号:3 (2): 348-362
被引量:221
标识
DOI:10.1016/j.chempr.2017.05.004
摘要
Flexible energy storage devices are attracting extensive attention, but most of the reported flexible batteries and supercapacitors use either strong acid or base or toxic flammable organic solutions as electrolytes, which pose potential safety issues when worn by humans or implanted into the body. Here, we present a highly safe family of flexible sodium-ion batteries (SIBs) based on a Na0.44MnO2 cathode, a nano-sized NaTi2(PO4)3@C anode, and various aqueous electrolytes containing Na+. The resulting belt- and fiber-shaped aqueous SIBs exhibit high volumetric energy and power density, high flexibility, and long life and thus can be safely applied in wearable electronic devices. When normal saline or cell-culture medium is used as the electrolyte, these SIBs can still work well, indicating potential application in implantable electronic devices. The fiber-shaped electrodes in Na+-containing aqueous electrolytes exhibit an electrochemical deoxygenation function, which could be applied in biological and medical fields.
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