Electrolyte solution for electrolytic capacitor and electrolytic capacitor utilizing said electrolyte solution
AssigneeSanyo Chemical Industries, Ltd.
InventorsFumiyuki Tanabe, Takahiro Shiba, Yoshihiko Akazawa, Takao Mukai
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Abstract
The purpose of the present invention is to provide an electrolyte solution for an electrolytic capacitor which has high withstand voltage. The electrolyte solution for an electrolytic capacitor that is used contains: an organic solvent; an acrylic polymer which has hydroxy group and/or carboxy group; and an electrolyte. A concentration of hydroxy groups included in the organic solvent is 10 mmol/g or less with respect to the weight of the organic solvent.
Claims13
An electrolyte solution for an electrolytic capacitor comprising a solvent containing an organic solvent, an acrylic polymer having hydroxy group and/or carboxy group, and an electrolyte,
- wherein a concentration of hydroxy groups included in the organic solvent is 10 mmol/g or less with respect to the weight of the organic solvent, a glass transition temperature of the acrylic polymer having hydroxy group and/or carboxy group is −80° C. to 56° C., and the acrylic polymer is a polymer that includes a monomer having (meth)acryloyl group and hydroxy group as essential constituent monomers.
Dependencies are inferred from the claim text.