Inventors:
Prathap Haridoss - Chennai, IN
Chockkalingam Karuppaiah - Troy NY
James F. McElroy - Suffield CT
Jeffrey R. Boyer - Nishayuna NY
Eric G. Budesheim - Wynantskill NY
Assignee:
Plug Power, Inc. - Latham NY
International Classification:
H01M 800
US Classification:
429 13, 429 33, 429 34, 429 44
Abstract:
The invention provides an anode gas diffusion layer for a fuel cell and methods for preparation and use thereof. In particular, a hydrophilic anode gas diffusion layer promotes water transfer through the fuel cell. As an example, in one aspect, the invention provides a fuel cell system, including a fuel cell with an anode gas diffusion layer. The anode gas diffusion layer has a contact angle with water less than 140Â (e. g. , in some cases less than 120Â or less than 100Â). In another aspect, the invention provides a gas diffusion layer for a hydrogen electrode of a PEM fuel cell that includes a carbon fiber media having a water contact angle of less than 140Â.