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学科主题: 物理化学
题名: The use of mixed carbon materials with improved oxygen transport in a lithium-air battery
作者: Zhang, Yining1;  Zhang, Huamin1;  Li, Jing1, 2;  Wang, Meiri1;  Nie, Hongjiao1, 2;  Zhang, Fengxiang1
通讯作者: 张华民
关键词: Lithium/air battery ;  Carbon material ;  Electrode structure ;  Oxygen transport ;  Porosity
刊名: JOURNAL OF POWER SOURCES
发表日期: 2013-10-15
DOI: 10.1016/j.jpowsour.2013.04.018
卷: 240, 页:390-396
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 ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
资助者: 1,1
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
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.
关键词[WOS]: LI/AIR BATTERIES ;  ORGANIC ELECTROLYTE ;  PERFORMANCE ;  OPERATION ;  CAPACITY
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000321803700048
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119556
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, Energy Storage Div, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
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.
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