The effects of compression and gas diffusion layers on the performance of a PEM fuel cell
W Lee, CH Ho, JW Van Zee, M Murthy - Journal of power sources, 1999 - Elsevier
W Lee, CH Ho, JW Van Zee, M Murthy
Journal of power sources, 1999•ElsevierChanges in the performance of a PEM fuel cell are presented as a function of the
compression pressure resulting from torque on the bolts that clamp the fuel cell. Three types
of gas diffusion layers were studied at 202 kPa and 353° K. An optimum bolt torque was
observed when ELAT® or a combination of CARBEL® and TORAY™ gas diffusion media
were used as diffusion layers. The optimum is related to the gasket thickness and the
measured compression pressure on the diffusion layer. The performance changes may also …
compression pressure resulting from torque on the bolts that clamp the fuel cell. Three types
of gas diffusion layers were studied at 202 kPa and 353° K. An optimum bolt torque was
observed when ELAT® or a combination of CARBEL® and TORAY™ gas diffusion media
were used as diffusion layers. The optimum is related to the gasket thickness and the
measured compression pressure on the diffusion layer. The performance changes may also …
Changes in the performance of a PEM fuel cell are presented as a function of the compression pressure resulting from torque on the bolts that clamp the fuel cell. Three types of gas diffusion layers were studied at 202 kPa and 353°K. An optimum bolt torque was observed when ELAT® or a combination of CARBEL® and TORAY™ gas diffusion media were used as diffusion layers. The optimum is related to the gasket thickness and the measured compression pressure on the diffusion layer. The performance changes may also be related to changes in the porosity, the electrical contact resistance, and the excluded water at the membrane.
Elsevier
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