Contact device and fuel cell stack or fuel cell block...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Electrical current collector

Reexamination Certificate

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Details

C429S518000, C429S471000

Reexamination Certificate

active

08067131

ABSTRACT:
The invention relates to a contact device which is arranged in a terminal compartment of a fuel cell stack and is used to electrically contact the fuel cell stack. According to the invention, the surface of said contact device is at least partially provided with a hydrophobic surface layer, facilitating the removal of water, e.g., condensation water, from the terminal compartment and thus from the fuel cell stack.

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Wang M. et al., “Study on impregnation of polytetrafluoroethylene in graphite for use as fuel cell collector”, International Journal of Hydrogen Energy, Elsevier Science Publishers B.V., Barking, GB, vol. 30, No. 9, Aug. 2005, pp. 1027-1030, XP004891587.
Wang Minchua et al., “Study of impregnating polytetrafluoroethylene in graphite for using as collector of fuel cell”, Journal of the Chinese Ceramic Society Chinese Ceramic Society China, vol. 30, Oct. 2002, pp. 120-123, XP008052907.
Database Inspec, “Study of impregnating polytetrafluoroethylene in graphite for using as collector of fuel cell”, The Institution of Electrical Engineers, Stevenage, GB, 2002, XP002344376.

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