Bipolar plate for fuel cell, has functional layer arranged between carbon layers, where functional layer is made of silver or copper with small specific electrical resistance and with specific thickness

摘要

The plate has carbon layers (16, 20), and a functional layer (18) arranged between the carbon layers. The functional layer is made of silver or copper with small specific electrical resistance that is less than or equal to 0.02 micro ohm meter. The functional layer is a metal film or metal sheet such as perforated metal plate, with a thickness greater than 0.1 mm and less than 3 mm. An independent claim is also included for: manufacturing a bipolar plate of a fuel cell.