Non-porous activated mesophase carbon microbeads as a negative electrode material for asymmetric electrochemical capacitors

	Non-porous activated mesophase carbon microbeads as a negative electrode material for asymmetric electrochemical capacitors
	Zheng C ; Gao JC ; Yoshio M ; Qi L ; Wang HY
刊名	journal of power sources
	2013
卷号	231 页码:29-33
关键词	DOUBLE-LAYER CAPACITOR CARBON/GRAPHITE CAPACITORS ORGANIC ELECTROLYTE PERFORMANCE AC/GRAPHITE SUPERCAPACITOR GRAPHITE
ISSN号	0378-7753
通讯作者	wang hy
中文摘要	non-porous activated (mesophase carbon microbeads) mcmbs have been prepared by calcinations at 1100 degrees c and then activated with koh at 800 degrees c in a nitrogen flow. this spherical carbon material could store a large number of ions after having been subjected to an "extra" electrochemical activation. it has been used as the negative electrode for asymmetric electrochemical capacitors of mcmb/activated carbon. the charge storage mechanism at the mcmb negative electrode has been investigated by xrd and tem. the results demonstrate that the intercalation of quaternary alkyl ammonium cations from the electrolytes causes an irreversible expansion of interlayer spaces between adjacent carbon layers, which provides accommodation for subsequent ion adsorption. a series of quaternary alkyl ammonium-based electrolytes have been tested in the capacitors and the effect of the cation has been studied. spiro-(1,1')-bipyrrolidinium increases the storage ability most significantly although it is not the lightest quaternary alkyl ammonium cation. (c) 2013 elsevier b.v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000316036700005
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49843]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Zheng C,Gao JC,Yoshio M,et al. Non-porous activated mesophase carbon microbeads as a negative electrode material for asymmetric electrochemical capacitors[J]. journal of power sources,2013,231:29-33.
APA	Zheng C,Gao JC,Yoshio M,Qi L,&Wang HY.(2013).Non-porous activated mesophase carbon microbeads as a negative electrode material for asymmetric electrochemical capacitors.journal of power sources,231,29-33.
MLA	Zheng C,et al."Non-porous activated mesophase carbon microbeads as a negative electrode material for asymmetric electrochemical capacitors".journal of power sources 231(2013):29-33.