Investigation of the effects of compression pressure on direct methanol fuel cell

被引：16
|
作者：
Zhu, Yingli [1 ]
Liu, Chong [1 ,2 ]
Liang, Junsheng [1 ]
Wang, Liding [1 ,2 ]
机构：
[1] Dalian Univ Technol, Key Lab Micro Nano Technol & Syst Liaoning Prov, Dalian 116023, Liaoning Prov, Peoples R China
[2] Dalian Univ Technol, Key Lab Precis & Nontradit Machining Technol, Minist Educ, Dalian 116023, Liaoning Prov, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Direct methanol fuel cell; Compression pressure; Loading history; Feeding mode; PERFORMANCE; FORCE;
D O I：
10.1016/j.jpowsour.2010.06.034
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Compression pressure has significant influence on the performance of direct methanol fuel cell (DMFC) and the effect of compression is more significant for a DMFC than a proton exchange membrane fuel cell (PEMFC). But there are few data concerning the compression pressure on the performance of DMFCs. Loading history and feeding mode may also affect the optimal compression pressure for the DMFC. This paper investigates the influence of compression pressure on the DMFC. The effects of reload and air feeding mode are also examined. The optimal pressure of the DMFC is 1 MPa when the cell is assembled for the first time in forced convection mode. However, the optimum pressure decreases to 0.05 MPa when the cell is compressed again because of the residual strain of the GDL. The optimal pressure decreases to 0.5 MPa when the cell operates in air-breathing mode. Therefore, the optimum compression pressure for a DMFC strongly depends on the loading history and the feeding mode. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：264 / 269
页数：6
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