METHOD OF TREATING COMPOSITE PLATES

摘要

Methods and systems for enhancing water management capabilities of a fuel cell system are described. The surface of a composite bipolar plate is chemically treated, for example with an oxidizer, to create a hydrophilic surface. The chemical treatment can include immersing the composite plate in an acid bath to acid etch the surface of the composite plate. Additionally, anodic roughening can also be utilized prior to placing the composite plate in the acid bath.