| 摘要 |
<p>Provided is a porous film comprising a heat-resistant resin and two or more fillers, wherein a value of D 2 /D 1 is 0.15 or less where among values each obtained by measuring the average particle diameter of particles that constitute one of the two or more fillers, the largest value is let be D 1 and the second largest value is let be D 2 .</p> |
