Hyundai Motor Company

Korea Advanced Institute of Science and Technology

Bu Gi Kim

Jung Do Suh

Dai Gil Lee

Ha Na Yu

Byoung Chul Kim

Jun Woo Lim

Sae Hoon Kim

Byung Ki Ahn

The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The inventive method involves allowing graphite foil layers to be brought into direct contact with each other when graphite foils are stacked on both sides of a carbon fiber reinforced composite material prepreg, thereby improving electrical conductivity in the thickness direction of the separator.

Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same

The present invention provides a method for manufacturing a composite separator for a fuel cell, which can reduce the electrical contact resistance by performing an additional post-treatment to remove residual resin remaining on the surface of the composite separator by plasma etching. In certain preferred embodiments, the present invention provides a method for manufacturing a composite separator for a fuel cell, in which a liquid phase resin for gasket is applied to the surface of the composite separator along a predetermined gasket pattern, or a semi-cured resin for gasket in the form of a film with a predetermined gasket pattern is stacked on the surface of the composite separator, and then plasma etching is performed to remove the residual resin and, at the same time, cure the resin for gasket, thus reducing the overall processing time to improve the productivity and preventing a composite material of the separator from being damaged.

Method for manufacturing composite separator for fuel cell and composite separator manufactured by the same

Growing community of inventors

Gwangju, South Korea

Bu Gi Kim