Operation of PEM fuel cells with dry feeds

Jay Burton Benziger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Auto-humidified (or self humidifying) PEMFC operation with the channel-less, self-draining fuel cell is demonstrated from 25 to 115°C at 1 and 3 atm. Current densities of > 1 A/cm2 at 0.6 V is achieved at 95°C with dry feeds. Fuel cells designed with conventional serpentine flow channels were not able to operate with dry feeds at temperatures above 50-60°C. Design and operating requirements are presented for auto-humidified operation. The channel-less self-draining design offers substantial benefits for simplicity of operation and control including: the ability to self drain reducing flooding, the ability to uniformly disperse water removing current gradients and the ability to operate on dry feeds eliminating the need for humidifiers.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers
StatePublished - Dec 1 2008
Event236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States
Duration: Aug 17 2008Aug 21 2008

Other

Other236th National Meeting and Exposition of the American Chemical Society, ACS 2008
CountryUnited States
CityPhiladelpia, PA
Period8/17/088/21/08

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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    Benziger, J. B. (2008). Operation of PEM fuel cells with dry feeds. In American Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers