A water management system for metal-based micro passive direct methanol fuel cells

被引：11

作者：

Zhang, Xuelin ^{[1
,2
]}

Li, Yang ^{[1
]}

Chen, Hailong ^{[1
]}

Wang, Zhigang ^{[1
]}

Zeng, Zhaoyang ^{[3
]}

Cai, Mengyuan ^{[1
]}

Zhang, Yufeng ^{[1
]}

Liu, Xiaowei ^{[1
]}

机构：

[1] Harbin Inst Technol, MEMS Ctr, Harbin 150001, Heilongjiang, Peoples R China

[2] Chongqing Univ, Natl Key Lab Fundamental Sci Micro Nanodevice & S, Chongqing 400044, Peoples R China

[3] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Heilongjiang, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2015年 / 273卷

关键词：

Direct methanol fuel cell; Water flooding; Plasma electrolytic oxidation; Current collector; STEEL FIBER FELT; CURRENT COLLECTOR; DIFFUSION BACKING;

D O I：

10.1016/j.jpowsour.2014.09.059

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：

A novel water management system for micro passive DMFC is fabricated and characterized in this paper. This system consists of both a cathode current collector made of a 316L sintered stainless fiber felt (SSFF) and an aluminum-based end plate fabricated with a perforated flow field. Besides, some water-collecting channels were fabricated on the surface of the cathode end plate and then covered by the plasma electrolytic oxidation (PEO) coating. The results show that the PEO coating plays crucial roles in the water management system. Because of the highly hydrophilic property of the coating, the channels work well in collecting the liquid water from the current collector, and water accumulation along the air-breathing holes can be well prevented, which improves the stability of the micro DMFC. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：375 / 379

页数：5

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