发明名称 |
METHOD AND APPARATUS FOR DETECTING DEFECTS OF FUEL CELL MEMBRANE-ELECTRODE ASSEMBLY |
摘要 |
Disclosed herein is a method of detecting defects of a fuel cell membrane-electrode assembly which comprises a gas diffusion layer, a catalyst layer and an electrolyte membrane. The method includes steps of: supplying gas to a first side of the membrane-electrode assembly; deducing a pressure of the supplied gas and a permeation rate of the gas permeating to a second side of the membrane-electrode assembly and then deducing an interface pressure between the electrolyte membrane and the gas diffusion layer of the membrane-electrode assembly using the deduced pressure of the supplied gas and the permeation rate; calculating a gas permeability of the electrolyte membrane using the deduced values of the pressure of the supplied gas and the permeation rate and a predetermined outlet pressure at the second side of the membrane-electrode assembly; and determining a defect state of the electrolyte membrane using a variation in the calculated gas permeability according to a change in the pressure of the supplied gas. |
申请公布号 |
US2016013500(A1) |
申请公布日期 |
2016.01.14 |
申请号 |
US201414550926 |
申请日期 |
2014.11.22 |
申请人 |
Hyundai Motor Company |
发明人 |
Ahn Sang Yeoul;Lim Tae Won;Ahn Byung Ki;Lee Hyun Seung;Park Yong Sun;Lee Sung Keun |
分类号 |
H01M8/04 |
主分类号 |
H01M8/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method of detecting defects of a fuel cell membrane-electrode assembly which comprises a gas diffusion layer, a catalyst layer and an electrolyte membrane, comprising steps of:
supplying gas to a first side of the membrane-electrode assembly; deducing a pressure of the supplied gas and a permeation rate of a permeated gas to a second side of the membrane-electrode assembly, and then deducing an interface pressure between the electrolyte membrane and the gas diffusion layer of the membrane-electrode assembly using the deduced pressure of the supplied gas and the permeation rate; calculating a gas permeability of the electrolyte membrane using the deduced pressure of the supplied gas and the permeation rate and a predetermined outlet pressure at the second side of the membrane-electrode assembly; and determining a defect state of the electrolyte membrane using a variation in the calculated gas permeability according to a change in the pressure of the supplied gas. |
地址 |
Seoul KR |