气候变化领域集成服务门户(CCPortal): A capacity recoverable zinc-ion micro-supercapacitor

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DOI	10.1039/c8ee02567c
	A capacity recoverable zinc-ion micro-supercapacitor
	Sun G.; Yang H.; Zhang G.; Gao J.; Jin X.; Zhao Y.; Jiang L.; Qu L.
发表日期	2018
ISSN	17545692
起始页码	3367
结束页码	3374
卷号	11 期号:12
英文摘要	To achieve high energy and power density simultaneously in miniaturized electronic devices, a zinc-ion micro-supercapacitor (ZmSC) is constructed for the first time by integrating a battery-type zinc micro-anode and a capacitor-type carbon nanotube micro-cathode. In the meantime, an electroplating method is developed to in situ replenish the zinc anode when needed without destroying the configuration of the ZmSC, in which the micro-cathode, micro-anode and electrolyte of the ZmSC function as the working electrode, counter electrode and plating solution in the plating process, respectively. This strategy effectively avoids the irreversible consumption of the zinc anode and the fading of the capacitance and cycle life. As a result, the prepared ZmSC exhibits an excellent electrochemical performance, including a high area capacitance of 83.2 mF cm -2 at 1 mA cm -2 , a high energy density of 29.6 μW h cm -2 and a high power density of 8 mW cm -2 . After 6000 cycles, the ZmSC shows about 87.4% retention (60.9 mF cm -2 ) of its initial area capacitance at 5 mA cm -2 . Furthermore, a higher capacitance (76 mF cm -2 ) and a longer cycling life are obtained after re-plating the zinc anode. This method features a simple configuration and easy operation, and holds great promise for use in other long cycle life zinc-based microdevices. © 2018 The Royal Society of Chemistry.
英文关键词	Anodes; Capacitance; Carbon nanotubes; Cathodes; Charging (batteries); Electrolytes; Supercapacitor; Yarn; Counter electrodes; Electrochemical performance; High energy densities; High power density; Micro supercapacitors; Miniaturized electronics; Plating solutions; Working electrode; Zinc; carbon nanotube; electrochemical method; electrode; electrolyte; electronic equipment; fuel consumption; life cycle; performance assessment; zinc
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190044
作者单位	Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry, Beijing Institute of Technology, Beijing, 100081, China; Laser Micro-/Nano-Fabrication Laboratory, Beijing Institute of Technology, Beijing, 100081, China; Key Laboratory for Advanced Materials Processing Technology, Ministry of Education of P. R. China, State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
推荐引用方式 GB/T 7714	Sun G.,Yang H.,Zhang G.,et al. A capacity recoverable zinc-ion micro-supercapacitor[J],2018,11(12).
APA	Sun G..,Yang H..,Zhang G..,Gao J..,Jin X..,...&Qu L..(2018).A capacity recoverable zinc-ion micro-supercapacitor.Energy & Environmental Science,11(12).
MLA	Sun G.,et al."A capacity recoverable zinc-ion micro-supercapacitor".Energy & Environmental Science 11.12(2018).