| 摘要 |
A separator (1) having heat resistant insulation layers, for electric devices, according to the present invention is provided with: a resin porous substrate (2); and heat resistant insulation layers (3) that are formed on both faces of the resin porous substrate, and that comprise heat resistant particles the melting point or thermal softening point of which is not less than 150°C. A parameter (X) indicated by numerical formula (1) has a value not less than 0.15. In this numerical formula, A' and A'' are thicknesses (μm) of each of the heat resistant insulation layers (3) formed on both faces of the resin porous substrate (2), have a relationship of A' ≥ A'' in this case, and C is the total thickness (μm) of the separator (1) having the heat resistant insulation layers. Numerical formula (1). |
