| 摘要 |
One embodiment of the present invention provides a separator for nonaqueous secondary batteries, which is provided with a film that contains a fluorine-containing nonionic surfactant having a hydrophilic structure unit and a hydrophobic structure unit that contains a fluorine atom. The content of the fluorine-containing nonionic surfactant is from 0.001 g/m2 to 1 g/m2 (inclusive). |
