DICP OpenIR
学科主题电化学工程
Proton Exchange Membrane Fuel Cell degradation at Subzero Temperature
Yu HM(俞红梅); Shao ZG(邵志刚); Yi BL(衣宝廉)
会议文集Book of Abstracts and Posters
会议名称2nd International Workshop on Degradation Issues of Fuel Cells
会议日期2011-9-21
2011
会议地点塞萨洛尼基
页码113-0
出版者待补充
出版地待补充
合作性质分会口头报告
部门归属301
主办者European Commission, DG JRC-IE; DLR, Germany; Forschungszentrum Jülich, Germany; DOE, USA; ENEA, Italy; ZSW, Germany; CEA, France
英文摘要With the support from National Natural Science Foundation of China(NSFC) and 863 High-Tech Program, the research of proton exchange membrane (PEM) fuel cell at subzero temperatures was implemented at Dalian Institute of Chemical Physics. The effect of water freezing during the fuel cell storage and cold start at subzero temperature was investigated. Microstructure analysis , cyclic voltammetry (CV) and electrochemical impedance were implemented to investigate the characteristics of the fuel cell endured subzero environment. Based on the analysis of various water retained amounts in the fuel cell, it was found that ice formation caused not only the irreversible loss but also the reversible loss. Water removal methods were applied to improve the fuel cell subzero survivability. By analyzing the EIS results, the ohmic resistance did not change. The change of the charge transfer resistance depended on the residual water amount, while the mass transport resistance of the cell with the largest residual water amount increased significantly even at small current density region. The electrochemical active surface area (ECSA) from the CV measurements indicated that when the amount of water in the catalyst layer of the cell was reduced to an extent that the damage in the freeze/thaw cycles could be avoided. The pore size distribution data from mercury intrusion porosimetry measurements showed that the porosity of the gas diffusion layer changed after the freeze/thaw cycles.; With the support from National Natural Science Foundation of China(NSFC) and 863 High-Tech Program, the research of proton exchange membrane (PEM) fuel cell at subzero temperatures was implemented at Dalian Institute of Chemical Physics. The effect of water freezing during the fuel cell storage and cold start at subzero temperature was investigated. Microstructure analysis , cyclic voltammetry (CV) and electrochemical impedance were implemented to investigate the characteristics of the fuel cell endured subzero environment. Based on the analysis of various water retained amounts in the fuel cell, it was found that ice formation caused not only the irreversible loss but also the reversible loss. Water removal methods were applied to improve the fuel cell subzero survivability. By analyzing the EIS results, the ohmic resistance did not change. The change of the charge transfer resistance depended on the residual water amount, while the mass transport resistance of the cell with the largest residual water amount increased significantly even at small current density region. The electrochemical active surface area (ECSA) from the CV measurements indicated that when the amount of water in the catalyst layer of the cell was reduced to an extent that the damage in the freeze/thaw cycles could be avoided. The pore size distribution data from mercury intrusion porosimetry measurements showed that the porosity of the gas diffusion layer changed after the freeze/thaw cycles.
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/116099
专题中国科学院大连化学物理研究所
通讯作者Yu HM(俞红梅)
推荐引用方式
GB/T 7714
Yu HM,Shao ZG,Yi BL. Proton Exchange Membrane Fuel Cell degradation at Subzero Temperature[C]. 待补充:待补充,2011:113-0.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[俞红梅]的文章
[邵志刚]的文章
[衣宝廉]的文章
百度学术
百度学术中相似的文章
[俞红梅]的文章
[邵志刚]的文章
[衣宝廉]的文章
必应学术
必应学术中相似的文章
[俞红梅]的文章
[邵志刚]的文章
[衣宝廉]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。