A passive vapor-feed direct methanol fuel cell (DMFC) was experimentally investigated to improve its water management and cell performance when neat methanol was directly used. The effects of different water management approaches, including the addition of a water management layer (WML) and a hydrop
Development of a High Performance Passive Vapor-Feed DMFC Fed with Neat Methanol
โ Scribed by Xu, Chao; Faghri, Amir; Li, Xianglin
- Book ID
- 121689562
- Publisher
- The Electrochemical Society
- Year
- 2010
- Tongue
- English
- Weight
- 572 KB
- Volume
- 157
- Category
- Article
- ISSN
- 0013-4651
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The methanol barrier layer adopted for high-concentration direct methanol fuel cells (HC-DMFCs) increases water transport resistance, and makes water management in HC-DMFCs more challenging and critical than that in the conventional direct methanol fuel cell (DMFC) without a methanol barrier layer.
A novel approach has been proposed to improve the water management of a passive direct methanol fuel cell (DMFC) fed with neat methanol without increasing its volume or weight. By adopting perforated covers with different open ratios at the cathode, the water management has been significantly improv
In a high-concentration direct methanol fuel cell (HC-DMFC), the methanol crossover is typically decreased to an acceptable level by two main mechanisms: high methanol transport resistance between the anode reservoir and the membrane electrode assembly (MEA), and high water back flow from the cathod