氧化方式对发泡镍电极中CoOOH导电网络稳定性的影响

CORC > 厦门大学 > 2008年第14卷

	氧化方式对发泡镍电极中CoOOH导电网络稳定性的影响; Effects of Oxidation Methods on the Stability of CoOOH Conductive Network in Foam Nickel Electrodes
	李晓峰 ; 魏彦伟 ; 董会超 ; LI Xiao-feng ; WEI Yan-wei ; DONG Hui-chao
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract8665.shtml
	2008-02-28
关键词	金属氢化物-镍电池发泡镍电极 CoOOH导电网络氧化方式 nickel/metal-hydride battery foam nickel electrode cobalt oxyhydroxide conductive network oxidation method
英文摘要	应用化学氧化(CO)和电化学氧化法(EO)于发泡式镍电极中引入CoOOH导电网络.循环伏安和X射线衍射法研究其还原氧化行为.实验表明,由化学氧化法制备的CoOOH(CO),其电化学还原氧化反应的可逆性优于CoOOH(EO);当镍电极的电位被强制性降低时,前者的结构能够保持稳定.因此,金属氢化物-镍电池经过强制性过放电储存后,于镍电极中引入CoOOH(CO)导电网络的电池容量保持率达到97.7%,而引入CoOOH(EO)导电网络的电池仅为81.4%.; Two kinds of the cobalt oxyhydroxide conductive networks in foam nickel electrodes were prepared by different methods i.e.the electrochemical-oxidation(EO) and chemical-oxidation(CO) and which redox behaviors were studied by using cyclic voltammetry and X-ray diffraction measurements.The results show that the CoOOH(CO) has better redox reversibility than CoOOH(EO) and the structure of the former can be kept when nickel electrodes are subjected to a negative potential.Thus,98.7% capacity retention is demonstrated on nickel/metal-hydride batteries with CoOOH(CO) conductive network after being imposed over-discharge state storage;on the contrary,only 83.3% capacity retention is found on the batteries with CoOOH(EO) conductive network.; 作者联系地址：郑州轻工业学院材料与化工学院,郑州轻工业学院材料与化工学院,郑州轻工业学院材料与化工学院河南郑州450002,河南郑州450002,河南郑州450002; Author's Address: Department of Material and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/58207]
专题	2008年第14卷
推荐引用方式 GB/T 7714	李晓峰,魏彦伟,董会超,等. 氧化方式对发泡镍电极中CoOOH导电网络稳定性的影响, Effects of Oxidation Methods on the Stability of CoOOH Conductive Network in Foam Nickel Electrodes[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract8665.shtml,2008.
APA	李晓峰,魏彦伟,董会超,LI Xiao-feng,WEI Yan-wei,&DONG Hui-chao.(2008).氧化方式对发泡镍电极中CoOOH导电网络稳定性的影响.http://electrochem.xmu.edu.cn/CN/abstract/abstract8665.shtml.
MLA	李晓峰,et al."氧化方式对发泡镍电极中CoOOH导电网络稳定性的影响".http://electrochem.xmu.edu.cn/CN/abstract/abstract8665.shtml (2008).