| 摘要 |
PROBLEM TO BE SOLVED: To provide small plane stack structure capable of suppressing internal pressure variation and internal pressure increase by exhausting CO<SB>2</SB>gas 14 in the methanol aqueous solution fuel 15 generating in proportion to the power generation current of an active direct methanol polymer electrolyte fuel cell (DMFC). SOLUTION: The internal pressure variation and internal pressure increase in a passage are suppressed by the plane stack structure having a gas liquid separation membrane 3 in a fuel passage between membrane electrode assemblies in the direct methanol polymer electrolyte fuel cell 13 or by installing the gas liquid separation membrane 3 on the upper surface of the stack and forming the gas liquid separation membrane 3 in the plane stack structure having a gas permeation passage 2 between of the passages, and by exhausting CO<SB>2</SB>gas 14 generated in each MEA with the gas liquid separation membrane 3. COPYRIGHT: (C)2006,JPO&NCIPI
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