Resistivity of elastic separator used in PEFC and evaluation of contact resistance between separator and electrode sheet

Author

Tomimura, Tetsuya ; Nakamura, Shuhei ; Nonami, Hironori ; Saito, Hiroolu

Author_Institution

Dept. of Electron., Mie Univ., Tsu, Japan

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

101

Lastpage

104

Abstract

It has been required to make the separator for the polymer electrolyte fuel cell (PEFC) elastic from the point of view of cost and size. Resistivity of the composites made of ethylene-propylene-diene rubber, carbon black and graphite particle have been studied as a candidate of the separator. The lowest resistivity in the composites is about 20 times larger than that of a promising nonelastic separator. However, it has been concluded that the composites may be capable of being used as a separator if the resistivity is reduced by several fractions because the elastic composite is possible to be made in thinner than the non-elastic composite. It is also concluded that the contact resistance between carbon sheet as an electrode and composite as a separator in PEFC is much larger than the resistance of the composite itself

Keywords

contact resistance; electrical resistivity; ethylene-propylene rubber; filled polymers; proton exchange membrane fuel cells; PEFC; binder resin; carbon sheet electrode; contact resistance; elastic composites; elastic separator; electrical resistivity; ethylene-propylene-diene rubber; graphite particle; injection molding; ribbon shaped samples; Conductivity; Contact resistance; Electrical resistance measurement; Electrodes; Injection molding; Particle separators; Plastic insulation; Polymers; Rubber; Shape measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics, 2001. ICSD '01. Proceedings of the 2001 IEEE 7th International Conference on

Conference_Location

Eindhoven

Print_ISBN

0-7803-6352-3

Type

conf

DOI

10.1109/ICSD.2001.955525

Filename

955525