| 摘要 |
The invention concerns a bipolar collector for a solid polymer electrolyte fuel cell whereof the electronic conduction is provided by uniformly distributed metal cylinders, and whereof the tips penetrate into the electrodes. The minimal distance between two cylinders ranges between 2 and 4 mm and the tightness between the two surfaces is provided by a polymer plate wherein the cylinders are inserted. Said design is applicable to plates incorporating ducts for transporting fluids or plates whereon are arranged, on either side, microporous structures serving as fluid distributor. Said type of collector is characterised in that the ohmic drop is very low, even for current density levels of the order of 1 A/cm2.
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