操作条件对直接甲醇燃料电池膜电极水平衡的影响

doi:10.3969/j.issn.2095-4239.2013.06.008

储能科学与技术 ›› 2013, Vol. 2 ›› Issue (6): 610-614.doi: 10.3969/j.issn.2095-4239.2013.06.008

操作条件对直接甲醇燃料电池膜电极水平衡的影响

高妍¹, 王素力², 侯宏英³, 赵亮², 郑开元⁴

1 金州新区价格认证中心,辽宁大连 116600;
2 中国科学院大连化学物理研究所,辽宁大连 116023;
3 昆明理工大学材料科学与工程学院,云南昆明 650093;
4 大连工业大学,辽宁大连 116600

收稿日期:2013-06-24 修回日期:2013-08-30 出版日期:2013-12-19 发布日期:2013-12-19
作者简介:高妍(1981--),女,博士研究生,工程师,主要从事直接醇类燃料电池研究,E-mail:gaoyan@dda.gov.cn.

Effect of operating conditions on water management of membrane electrode assembly for direct methanol fuel cell

GAO Yan¹, WANG Suli², HOU Hongying³, ZHAO Lliang², ZHENG Kaiyuan⁴

1 Prices and Certification Center,Jinzhou New District,Dalian 116600,Liaoning,China;
2 Dalian Institute of Chemical Physics,Chinese Academy of Science,Dalian 116023,Liaoning,China;
3 Faculty of Material Science and Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;
4 Dalian Polytechic University,Dalian 116600,Liaoning,China

Received:2013-06-24 Revised:2013-08-30 Online:2013-12-19 Published:2013-12-19

摘要/Abstract

摘要： 介绍了直接甲醇燃料电池(DMFCs)膜电极的水平衡研究对单电池性能和稳定性的影响,研究了电池操作温度,空气流量及电流密度等操作条件对膜电极水平衡的影响.通过调节操作条件改变净水传输系数,进一步表征膜电极水平衡对电池稳定性的影响.结果表明,单电池在60 ℃,阴极常压空气80 mL/min进料,100 mA/cm²条件下工作具有较好的水平衡,最后,测试了单电池在该条件下的稳定性,测试结果表明电池稳定运行200 h后,性能没有明显衰减.

关键词: 直接甲醇燃料电池, 膜电极, 水平衡, 净水传输系数, 稳定性

Abstract: This paper concerns the effects of water balance in a membrane electrode assembly (MEA) of direct methanol fuel cells (DMFCs) on DMFC performance. The effects of operating conditions including cell temperature, air rate and current density on the water balance are investigated. It is shown that the net water transport coefficient provides the water balance state and can be regulated by the operating conditions. For a single cell stable operation for 200 h can be achieved under optimized operating conditions of 100 mA/cm² at 60℃ and ambient dry air at 80 mL/min.

Key words: direct methanol fuel cells (DMFCs), membrane electrode assembly, water balance, net water transport coefficient, stability

中图分类号:

TQ028.8

高妍, 王素力, 侯宏英, 赵亮, 郑开元. 操作条件对直接甲醇燃料电池膜电极水平衡的影响[J]. 储能科学与技术, 2013, 2(6): 610-614.

GAO Yan, WANG Suli, HOU Hongying, ZHAO Lliang, ZHENG Kaiyuan. Effect of operating conditions on water management of membrane electrode assembly for direct methanol fuel cell[J]. Energy Storage Science and Technology, 2013, 2(6): 610-614.

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操作条件对直接甲醇燃料电池膜电极水平衡的影响

Effect of operating conditions on water management of membrane electrode assembly for direct methanol fuel cell

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