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学科主题: 物理化学
题名: Performance gains in single flow zinc-nickel batteries through novel cell configuration
作者: Cheng, Yuanhui1, 2;  Zhang, Huamin1;  Lai, Qinzhi1;  Li, Xianfeng1;  Shi, Dingqin1
通讯作者: 张华民 ;  赖勤志
关键词: Batteries ;  Electrochemistry ;  Energy storage ;  Cell structure ;  Positive electrode
刊名: ELECTROCHIMICA ACTA
发表日期: 2013-08-30
DOI: 10.1016/j.electacta.2013.05.024
卷: 105, 页:618-621
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL17
项目归属: DNL17
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
资助者: 1,1
研究领域[WOS]: Electrochemistry
英文摘要: Rapid charge-discharge rate is an important feature of energy storage devices, but causes dramatic reduction in battery performance. In single flow zinc-nickel batteries (ZNBs), large polarization of nickel hydroxide electrode is an obstacle to realizing high charge-discharge rate without compromising battery performance. A novel cell structure with a serpentine flow field is designed to reduce the polarization of the positive electrode through enhancing mass transport. The power density is improved nearly fourfold by elevating charge-discharge current density from 20 mA cm(-2) to 80 mA cm(-2) for the first time. Compared to traditional structure cell, the energy efficiency is improved 10.3% reaching to 75.2% at 80 mA cm(-2), which has a remarkable improvement. No obvious decrease of efficiencies is presented in the 70 charge-discharge cycles. This provides a feasible method to improve the charge-discharge rate with high performance and boosts the practical application progress of ZNBs. (c) 2013 Elsevier Ltd. All rights reserved.
关键词[WOS]: CARBON FELT ;  ELECTRODES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000322414800080
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119579
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Cheng, Yuanhui,Zhang, Huamin,Lai, Qinzhi,et al. Performance gains in single flow zinc-nickel batteries through novel cell configuration[J]. ELECTROCHIMICA ACTA,2013,105:618-621.
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