发明名称 |
Solid electrolytic capacitor |
摘要 |
There is provided a high performance solid electrolytic capacitor that can be manufactured stably. The present invention provides the solid electrolytic capacitor comprising an anode foil and a cathode foil, and a separator arranged between the anode foil and the cathode foil, wherein the anode foil, the cathode foil, and the separator are wound around, so that the separator is intervened between the anode foil and the cathode foil, the anode foil has a dielectric oxide film layer, the separator comprises a solid electrolyte and a nonwoven fabric holding the solid electrolyte, the nonwoven fabric composing the separator is a laminated nonwoven fabric having at least two layers of the nonwoven fabric layers, and the laminated nonwoven fabric comprises a nonwoven fabric layer (layer I) composed of ultra fine fiber having a fiber diameter of 0.1 to 4 μm, and a nonwoven fabric layer (layer II) composed of a thermoplastic resin fiber having a fiber diameter of 6 to 30 μm. |
申请公布号 |
US8953304(B2) |
申请公布日期 |
2015.02.10 |
申请号 |
US201013391122 |
申请日期 |
2010.08.19 |
申请人 |
Asahi Kasei Fibers Corporation |
发明人 |
Kato Kazufumi;Obi Rumina;Ueno Ikuo |
分类号 |
H01G9/00;H01G9/02;H01G4/32;H01G9/04;H01G9/15 |
主分类号 |
H01G9/00 |
代理机构 |
Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. |
代理人 |
Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. |
主权项 |
1. A separator for a solid electrolytic capacitor comprising a solid electrolyte and a nonwoven fabric holding said solid electrolyte, wherein
said nonwoven fabric is a laminated nonwoven fabric having at least two layers of nonwoven fabric layers, said laminated nonwoven fabric comprising a nonwoven fabric layer (layer I) composed of ultra fine fiber having a fiber diameter of 0.1 to 4 μm, and a nonwoven fabric layer (layer II) composed of thermoplastic resin fiber having a fiber diameter of 6 to 30 μm, said laminated nonwoven fabric has a thickness of 15 to 80 μm, a weight of 7 to 50 g/m2, an apparent density of 0.2 to 0.8 g/cm3 and average pore size of 0.3 to 20 μm, said nonwoven fabric layer (layer I) has a weight of 1.5 to 13.3 g/m2 , and said thermoplastic resin fiber in the nonwoven fabric layer (layer II) comprises a crystalline resin having a melting point of 180° C. or higher. |
地址 |
Osaka-Shi JP |