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Development of carbon coated membrane for zinc/bromine flow battery with high power density
Zhang, Liqun1,2; Zhang, Huamin1; Lai, Qinzhi1; Li, Xianfeng1; Cheng, Yuanhui1
关键词Carbon Energy Storage Zinc/bromine Flow Battery Power Density
刊名JOURNAL OF POWER SOURCES
2013-04-01
DOI10.1016/j.jpowsour.2012.11.033
227页:41-47
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Electrochemistry ; Energy & Fuels
研究领域[WOS]Electrochemistry ; Energy & Fuels
关键词[WOS]ELECTRODES ; CELLS ; FELT
英文摘要The zinc/bromine flow battery is considered as one of the most suitable candidates for the large-scale electrical energy storage attributed to its nature of high energy density and low cost However, the relatively low power density determined by the working current density of 20 mA cm(-2) limits its performance and application. The relatively low working current density is caused by the insufficient electrochemical activity of positive electrode and the high internal resistance of cell. The formation of Brads is the rate-determined step to the positive electrode reaction. Thus the activated carbon with the specific surface area of 2314 m(2) g(-1), compared with the carbon felt, is a much more suitable and competitive choice. The activated carbon coated membrane is first designed to decrease the internal resistance. Demonstrated by the cycle voltammetry, AC impedance and polarization distribution investigations, both the positive electrode overpotential and the cell internal resistance decrease obviously attributed to the high electrochemical activity layer closing to the membrane. Thus the energy efficiency of 75% is achieved at charge-discharge current density of 40 mA cm(-2), which means a nearly two-fold increase in power density. (C) 2012 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000315309900007
引用统计
被引频次:35[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/137606
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Zhang, Liqun,Zhang, Huamin,Lai, Qinzhi,et al. Development of carbon coated membrane for zinc/bromine flow battery with high power density[J]. JOURNAL OF POWER SOURCES,2013,227:41-47.
APA Zhang, Liqun,Zhang, Huamin,Lai, Qinzhi,Li, Xianfeng,&Cheng, Yuanhui.(2013).Development of carbon coated membrane for zinc/bromine flow battery with high power density.JOURNAL OF POWER SOURCES,227,41-47.
MLA Zhang, Liqun,et al."Development of carbon coated membrane for zinc/bromine flow battery with high power density".JOURNAL OF POWER SOURCES 227(2013):41-47.
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