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题名: Superior cycling stability and high rate capability of three-dimensional Zn/Cu foam electrodes for zinc-based alkaline batteries
作者: Yan, Zhao1, 2;  Wang, Erdong1;  Jiang, Luhua1;  Sun, Gongquan1
刊名: RSC ADVANCES
发表日期: 2015
DOI: 10.1039/c5ra16264e
卷: 5, 期:102, 页:83781-83787
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Three-dimensional (3D) Zn/Cu foam electrodes are fabricated by pulse electro-deposition of zinc on copper foam and investigated as negative electrode materials for zinc-based alkaline batteries. Scanning electron microscopy (SEM) images show that epitaxially layered zinc crystals distribute uniformly on the 3D copper foam-like skeleton. A peak power density of 286 mW cm(-2) and utilization of 92% (754 mA h g(-1) at 200 mA cm(-2)) are obtained when the Zn/Cu foam electrodes are used in primary zinc/oxygen batteries and reveal high rate capability and material utilization of the 3D electrodes. To probe the rechargeability of the Zn/Cu foam electrodes, zinc/zinc quasi-symmetric cells are cycled under severe conditions, i.e., a discharge-charge current density of as high as 250 mA cm(-2), 100% depth of discharge and without dendrite-suppressing additives that would otherwise suppress dendrite growth, yet the 3D Zn/Cu foam electrodes remain dendrite-free experienced 10 000 discharge-charge cycles. The specific capacity of the 3D Zn/Cu foam electrodes reaches up to 620 mA h g(-1) after at least 9000 discharge-charge cycles in a prototype Zn/Ni battery, exhibiting the superior cycling stability of the 3D Zn/Cu foam electrodes.
关键词[WOS]: LAYERED DOUBLE HYDROXIDE ;  ZN SECONDARY BATTERIES ;  ELECTROCHEMICAL PERFORMANCE ;  NEGATIVE ELECTRODE ;  NANOTUBE COMPOSITE ;  ANODE MATERIAL
语种: 英语
WOS记录号: WOS:000362752400029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146595
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, Dalian Natl Lab Clean Energy, Div Fuel Cell & Battery, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Yan, Zhao,Wang, Erdong,Jiang, Luhua,et al. Superior cycling stability and high rate capability of three-dimensional Zn/Cu foam electrodes for zinc-based alkaline batteries[J]. RSC ADVANCES,2015,5(102):83781-83787.
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