HEAT RESISTANT SEPARATOR AND ELECTRIC ELECTRONIC COMPONENT EMPLOYING IT

摘要

A separator for an electric electronic component characterized in that the increasing rate of internal resistance between before and after the 45-minute heat treatment at 300˚C represented by following expression (1) :(internal resistance)={(electrical conductivity of electrolyte)/( electrical conductivity when electrolyte is injected into separator)}x(thickness of separator) is within 25%, where the (electrical conductivity when electrolyte is injected into separator) is calculated from an AC impedance measured by sandwiching the separator with electrolyte injected therein between two electrodes.