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Development of Electrode Structure for High Performance Fuel Cell Using CAE

[+] Author Affiliations
Joji Tomiyasu, Takashi Harada, Makoto Fujiuchi

Toyota Motor Corporation, Aichi, Japan

Takaji Inamuro

Kyoto University, Aichi, Japan

Shiaki Hyodo, Toshihisa Munekata

Toyota Central R & D Laboratories, Inc., Aichi, Japan

Paper No. FuelCell2010-33330, pp. 805-810; 6 pages
doi:10.1115/FuelCell2010-33330
From:
  • ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology
  • ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 1
  • Brooklyn, New York, USA, June 14–16, 2010
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 978-0-7918-4404-5 | eISBN: 978-0-7918-3875-4
  • Copyright © 2010 by ASME

abstract

Cold starting performance and high temperature operation are current issues in the development of high performance polymer electrolyte fuel cell (PEFC) electrodes. Although excess water must be removed to improve these aspects of electrode performance, it is also important to adopt a structure that prevents the electrodes from drying up. In the face of this conflicting relationship, it is therefore difficult to design an electrode structure with the required properties. For this reason, using technology jointly developed with Kyoto University and Toyota R&D Labs., Inc., the relationship between structural factors and performance was identified by applying a two-phase flow simulation to the complex microstructure of the gas diffusion layer (GDL) to optimize the electrode structure. As a result, an electrode structure was designed that improves high temperature operation while maintaining cold starting performance. The simulation results were then validated by experiments.

Copyright © 2010 by ASME

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