Separator for fuel cell

#This application claims benefit of priority to Korean Patent Application No. 10-2012-0149223, filed on Dec. 20, 2012 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.

#The present disclosure relates to a separator for a fuel cell, and more particularly to the structure of a separator for a fuel cell.

#A fuel cell system includes a solid polymer electrolyte membrane, one side of which is provided with a cathode and the other side of which is provided with an anode. This system purports to provide an external load power generated depending on an electrochemical reaction between oxygen in air supplied to the cathode and hydrogen supplied to the anode.

#The above and other objects, features and advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

#FIG. 1 is a view illustrating the structure of a separator for a fuel cell according to a conventional technique;

#FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1;

#With reference to FIG. 3, a separator 1 for a fuel cell according to an example of the present disclosure includes a metal plate 7 which forms a passage 3 and a manifold 5, frames having gaskets 9 that are integrated therewith using injection, and a bonding unit for integratedly bonding the frames 11 to the metal plate 7.

#Compared to conventional techniques in which the gasket is integratedly injected on the separator, the separator 1 according to the example is configured such that the metal plate 7 which forms the passage 3 and the manifold 5, and the frames 11 having the integratedly injected gaskets 9 are separately produced and then assembled, thus completing a single separator 1. Thereby, compared with the conventional production of a separator, the production process of the example prevents interference problems between conductive surface treatment and gasket cross-linking and poor injection of the gasket, and makes it possible to omit deburring of the gasket. This enhances productivity of the separator, reduces the manufacturing cost thereof, and ensures stable quality of the separator, thereby contributing to increasing quality of a fuel cell.

#Also, the gasket is not directly injected on the metal plate 7, thus obviating the need for applying a releasing agent before gasket injection, which thereby remarkably decreases pollution of the metal plate 7 and greatly contributes to an increase in quality of a fuel cell.