| 摘要 |
PROBLEM TO BE SOLVED: To enable hydrogen accumulated in a seal chamber to be smoothly discharged at the time of depressurization with a simple and economical structure, and surely suppress damage to a seal member and an electrolytic membrane.SOLUTION: A high-pressure water electrolysis cell 12 constituting a differential pressure type high-pressure water electrolysis apparatus 10 is arranged between an anode separator 32 and a solid polymer electrolytic membrane 40, and includes a communication hole member 52 surrounding a high-pressure hydrogen communication hole 38c. The communication hole member 52 includes seal chambers 52a and 52b in which seal members 54a and 54b around the periphery of the high-pressure hydrogen communication hole 38c are arranged. A cylindrical-shaped porous member 56 is arranged between the seal chambers 52a and 52b and the high-pressure hydrogen communication hole 38c.SELECTED DRAWING: Figure 3 |
