| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve durability of an electrolyte film and a gas-diffusion electrode as well as an electric conversion energy efficiency and a complete prevention of flooding, through prevention of reaction concentration at an entrance side flow channel groove part of a separator of a solid polymer electrolyte fuel cell. <P>SOLUTION: A flow channel groove 2 of the separator 1 consists of an entrance side flow channel groove part 13 located at an entrance side and an exit side flow channel groove part 14 located at an exit side, and is equipped with a bypass flow channel groove part 15 communicating from the entrance side flow channel groove part 13 to the exit side flow channel groove part 14. <P>COPYRIGHT: (C)2004,JPO |
