SEPARATOR FOR ALUMINUM ELECTROLYTIC CAPACITOR AND ALUMINUM ELECTROLYTIC CAPACITOR

摘要

A separator is provided for an aluminum electrolytic capacitor includes a porous cellulose film having excellent impedance characteristics and short-circuit resistance characteristics, and an aluminum electrolytic capacitor is also provided using the separator. The porous cellulose film is formed of dissolved and regenerated cellulose without forming a cellulose derivative. The regenerated cellulose is obtained by forming in a film form a cellulose solvent obtained by dissolving cellulose in an amino oxide solvent, immersing the resulting cellulose solvent in water or a poor solvent of the amino oxide solvent so as to coagulate and regenerate the cellulose, removing the cellulose from the amino oxide solvent, and drying the resulting cellulose.

主权项

1. A separator for an aluminum electrolytic capacitor constituted by a porous cellulose film made of dissolved and regenerated cellulose without forming a cellulose dielectric.