PERFORMANCE IMPROVEMENT IN DIRECT METHANOL FUEL CELL BY USING A NOVEL POROUS FLOW FIELD MADE OF SINTERED METAL POWDER
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20117261
- Paper/Info type
- Other International Conferences
No.2011-39-7261
- Pages
- 1-4(Total 4 p)
- Date of publication
- May 2011
- Publisher
- Others, Unknown
- Language
- English
- Event
- EVTeC'11
Detailed Information
| Category(E) | Fuel Cell & Hydrogen Production |
|---|---|
| Author(E) | 1) Toshio Shudo, 2) Shinji Naganuma |
| Affiliation(E) | 1) Tokyo Metropolitan University, 2) Central Japan Railway Company |
| Abstract(J) | 直接メタノール燃料電池の性能を向上させるために，焼結金属粉から多孔体流れ場を形成する手法を提案する.本手法により，従来のステンレス系材料を用いる場合や，同等の流れ場容量および深さを持つストレート流路を用いる場合に比べ，大幅に拡散分極を低減することが可能になり，燃料電池の性能向上に貢献した. Translation |
| Abstract(E) | It is important to reduce the diffusion polarization for achieving higher performance in direct methanol fuel cells (DMFC). The previous research has shown the performance improvement by applying a metal foam type porous stainless steel made by a metal-plating method to the separator flow field of a DMFC. This porous flow field enabled DMFC to operate with higher power output than conventional straight groove type separator especially at higher current densities. Diffusion polarization was especially reduced by the porous flow field. This current paper experimentally analyzes the effect of a new type porous flow field that is made of a sintered spherical metal powder. The results show that the sintered metal powder flow field exhibits higher effect in performance improvement of DMFC than the metal foam type porous flow field used in the previous research. The power density with the sintered metal powder porous flow field can be three times higher than that with a straight groove type flow field having the same flow field volume and depth. |
