| 摘要 |
The invention provides a seal structure body (8) for a fuel battery in which the seal structure body (8) constituted by a rubber-like elastic body (9) has a structure of self-controlling a compression rate of a seal lip (12), thereby simplifying a cross sectional shape of a separator (5) so as to enable to make the separator thin, and it is not necessary to prepare any special spacer. In a seal structure body (8) arranged in an outer peripheral side of an MEA (2) structuring a fuel battery cell (1), sealing between a pair of separators (5) and made of a rubber-like elastic body (9), in which partial the rubber-like elastic body (9) is integrally formed with the MEA (2) by being impregnated in a peripheral edge portion of a gas diffusion layer (4) structuring the MEA (2), a fixed sizing stop portion (13, 14) defining an interval (c) between a pair of separators (5) at a time of stack assembly is integrally formed at least in one or both of an inner peripheral side and an outer peripheral side of a seal lip (12) brought into close contact with the separator (5) so as to achieve a seal function. |
