The use of mixed carbon materials with improved oxygen transport in a lithium-air battery

	The use of mixed carbon materials with improved oxygen transport in a lithium-air battery
	Zhang, Yining 1; Zhang, Huamin 1; Li, Jing 1,2; Wang, Meiri 1; Nie, Hongjiao 1,2; Zhang, Fengxiang 1
刊名	journal of power sources
	2013-10-15
卷号	240 页码:390-396
关键词	Lithium/air battery Carbon material Electrode structure Oxygen transport Porosity
通讯作者	张华民
产权排序	待补充
合作状况	英
英文摘要	two commercial carbon blacks, ketjen black ec600jd (kb600) and super p with quite different porosity parameters, are used for the cathode of a lithium-air battery. with high specific pore volume, kb600 shows a higher weight specific capacity. however, super p exhibits a super high volume specific capacity, about 7 times higher than that of kb600, ascribed to its higher proportion of pores with suitable size for the deposition of solid products. the effects of o-2 partial pressure and discharge rate on the specific capacity are investigated, combined with characterizations of contact angle and the structure of the electrodes. it is demonstrated that the super p electrode possesses better o-2 transport that improves the use of the whole electrode volume, and the special mechanism of o-2 diffusion in the super p electrode is proposed. by mixing kb600 with super p with a weight ratio of 5:1, an electrode is obtained that exhibits increased o-2 transport. the weight specific capacity is 1219 mah g(-1), about 1.2 times higher than that of kb600. (c) 2013 elsevier b.v. all rights reserved.
学科主题	物理化学
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]	li/air batteries ; organic electrolyte ; performance ; operation ; capacity
收录类别	SCI
资助信息	1，1
原文出处	396
语种	英语
WOS记录号	WOS:000321803700048
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119556]
专题	大连化学物理研究所_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, Energy Storage Div, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yining,Zhang, Huamin,Li, Jing,et al. The use of mixed carbon materials with improved oxygen transport in a lithium-air battery[J]. journal of power sources,2013,240:390-396.
APA	Zhang, Yining,Zhang, Huamin,Li, Jing,Wang, Meiri,Nie, Hongjiao,&Zhang, Fengxiang.(2013).The use of mixed carbon materials with improved oxygen transport in a lithium-air battery.journal of power sources,240,390-396.
MLA	Zhang, Yining,et al."The use of mixed carbon materials with improved oxygen transport in a lithium-air battery".journal of power sources 240(2013):390-396.