1. Home
  2. Honda R&D Technical Review Vol.28 N...
  3. Development of New FC Stack for CLA...

Technical Review e-Book: Summary

Development of New FC Stack for CLARITY FUEL CELL

Article of Honda R&D Technical Review Vol.28 No.2

Summary

In order to make the fuel cell stack lighter weight and more compact, the cell thickness and the number of cell stacks were reduced. This achieved the world’s highest level of volume power density at 3.1 kW/L. The reduction in cell thickness was achieved by the uniform distribution of water in the membrane electrode assembly, a reduction in the gas flow channel depth, and reduction in the membrane electrode assembly thickness. The reduction in the number of cell stacks was achieved by narrowing the gas flow channel pitch so as to enhance the power output performance per cell. Structuring the FC stack so that the gas flow channels are oriented laterally allowed the height of the fuel cell stack to be reduced while the connection bar was used as a cell retention structure, increasing the impact resistance. This enabled mounting of the fuel cell stack under the front hood. Making the fuel cell lighter weight and more compact reduced its heat mass so that the time taken to reach 50% of rated capacity when the fuel cell is at a low temperature could be shortened to one-half of the time required by a previous fuel cell. The membrane electrode assemblies that make up the cell were given a resin frame around their periphery, and squaring off their shape reduced the amount of material needed in the electrolyte membranes and diffusion layers while also increasing their continuous manufacturing productivity.

Reference

(1) Inoue, M., Saito, N., Uchibori, K.: Next-generation Fuel Cell Stack for Honda FCX, Honda R&D Technical Review, Vol. 17, No. 2, p. 8-13
(2) Saito, N., Kikuchi, H., Nakao, Y.: New Fuel Cell Stack for FCX Clarity, Honda R&D Technical Review, Vol. 21, No. 1, p. 16-23
(3) Kimura, K., Kawasaki, T., Ohmura, T., Atsumi, Y., Shimizu, K.: Development of New Fuel Cell Vehicle CLARITY FUEL CELL, Honda R&D Technical Review, Vol. 28, No. 1, p. 1-8
(4) Takenaka, H.: Genri to Denkyoku Hannou, Nenryodenchi Gijyutu to sono Ouyo, Tekunosisutemu, p. 91, (2000), (in Japanese)
(5) Sato, M., Chiba, H., Inoue, M.: Development of CCM Water Content Distribution Measurement System for Fuel Cell Stack, Honda R&D Technical Review, Vol. 28, No. 1, p. 16-25
(6) Nagumo, K., Inoue, M.: Numerical Prediction of Water Content Distribution of Catalyst Coated Membrane of Fuel Cell Stack using Simulation, Honda R&D Technical Review, Vol. 28, No. 1, p. 26-33
(7) Iwanari, T., Miyajima, K., Furusawa, K., Inoue, M.: Real-time Measurement of Water Content of CCM in On-board Fuel Cell Stack System, Honda R&D Technical Review, Vol. 28, No. 1, p. 34-40

Author (organization or company)

Hideaki KIKUCHI(Automobile R&D Center)、Hayato KAJI(Automobile R&D Center)、Takayuki NISHIYAMA(Automobile R&D Center)、Daisuke OKONOGI(Automobile R&D Center)、Hitoshi HARATA(Honda Engineering Co.,Ltd.)

We would like to get your opinion on this research paper. (This is only applicable to registered members.)

The readers of this research paper have also selected these research papers.

Development of New FC Separator for CLARITY FUEL CELL
Article of Honda R&D Technical Review Vol.29 No.2
Development of New Fuel Cell Vehicle CLARITY FUEL CELL
Article of Honda R&D Technical Review Vol.28 No.1
Development of Air Supply System for CLARITY FUEL CELL
Article of Honda R&D Technical Review Vol.28 No.2