| 摘要 |
PROBLEM TO BE SOLVED: To provide a release polyester film for forming a green sheet used as an electrolyte of a solid oxide fuel cell (SOFC) with good precision and a packaging body with the film packaged therein and put in a moistureproof condition.SOLUTION: The release polyester film has a release layer and is used for forming a green sheet used as an electrolyte of a solid oxide fuel cell (SOFC). The height of undulation in an end surface of the polyester film is 1 mm or smaller. The moistureproof packaging body has the film packaged therein; the film is put in a moistureproof condition. The relative humidity inside the packaging body is 5% or less two hours after the packaging. |
