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US 7,248,461 B2Granted
Conducting polymer composite and solid electrolytic capacitor using the same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSeiji Takagi, Ayumi Kochi, Kenji Akami, Chiharu Hayashi
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Abstract
A conducting polymer composite is made by compounding a conducting polymer and an ionic polymer so as to achieve good conductivity. A high resistance material generated also has a high withstand voltage. A solid electrolytic capacitor using this conducting polymer composite as its solid electrolytic layer achieves low ESR and high withstand voltage.
Claims9
A conducting polymer composite in which an ionic polymer and a conducting polymer are compounded,
- said ionic polymer being a copolymer of one of polyacrylic acid or polymaleic acid with one of polyolefin, polyether or polyvinyl alcohol.
A solid electrolytic capacitor comprising:
- an anode made at least of a valve metal;
- a dielectric film formed on the valve metal;
- and
- a solid electrolytic layer formed on the dielectric film;
- wherein the solid electrolytic layer is a conducting polymer composite of a conducting polymer and an ionic polymer,
- said ionic polymer being a copolymer of one of polyacrylic acid or polymaleic acid with one of polyolefin, polyether or polyvinyl alcohol.
3 more elements
Dependencies are inferred from the claim text.