气候变化领域集成服务门户(CCPortal): All-wood, low tortuosity, aqueous, biodegradable supercapacitors with ultra-high capacitance

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DOI	10.1039/c6ee03716j
	All-wood, low tortuosity, aqueous, biodegradable supercapacitors with ultra-high capacitance
	Chen C.; Zhang Y.; Li Y.; Dai J.; Song J.; Yao Y.; Gong Y.; Kierzewski I.; Xie J.; Hu L.
发表日期	2017
ISSN	17545692
起始页码	538
结束页码	545
卷号	10 期号:2
英文摘要	In energy storage devices, the critical demands for high energy/power density, low cost, long cycle lives and environmental friendliness have highlighted an urgent need for developing storage electrodes with low cost, large thickness, high mass loading, low tortuosity and high energy/power density. Here we demonstrate the design and construction of an all-wood-structured asymmetric supercapacitor (ASC) based on an activated wood carbon (AWC) anode, a wood membrane separator and a MnO2/wood carbon (MnO2@WC) cathode. The structural virtues of the all-wood-structured ASC device-desirable thickness (up to ∼1 mm), direct channels with low tortuosity, high electronic and ionic conductivity-enable ASC high areal mass loadings (up to 30 mg cm-2 for the anode and 75 mg cm-2 for the wood carbon/MnO2 composite cathode), a high energy density of 1.6 mW h cm-2 and a maximum power density of 24 W cm-2, representing the highest mass loading and areal energy/power densities among all reported MnO2-based supercapacitors. Moreover, all components in the all-wood-structured ASC are low-cost, environmentally friendly and biocompatible. With these unique features, the all-wood-structured ASC represents a promising energy storage device to realize high mass loading, high energy/power density, and biocompatibility for green and renewable energy storage. © The Royal Society of Chemistry 2017.
英文关键词	Anodes; Biocompatibility; Cathodes; Costs; Electrodes; Energy storage; Manganese oxide; Supercapacitor; Wood; Asymmetric supercapacitor; Design and construction; Electronic and ionic conductivity; Environmental friendliness; High energy densities; Maximum power density; Membrane separators; Renewable energy storages; Loading; aqueous solution; biodegradation; electrode; electron density; electronic equipment; ionic composition; membrane; tortuosity; wood; Activated Carbon; Biodegradability; Capacitors; Conductivity; Wood
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/190541
作者单位	State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD 20742, United States
推荐引用方式 GB/T 7714	Chen C.,Zhang Y.,Li Y.,et al. All-wood, low tortuosity, aqueous, biodegradable supercapacitors with ultra-high capacitance[J],2017,10(2).
APA	Chen C..,Zhang Y..,Li Y..,Dai J..,Song J..,...&Hu L..(2017).All-wood, low tortuosity, aqueous, biodegradable supercapacitors with ultra-high capacitance.Energy & Environmental Science,10(2).
MLA	Chen C.,et al."All-wood, low tortuosity, aqueous, biodegradable supercapacitors with ultra-high capacitance".Energy & Environmental Science 10.2(2017).