Conductive composition precursor, conductive composition, solid electrolytic capacitor, and their manufacturing method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYasuo Kudoh, Kenji Akami, Hiroki Kusayanagi, Yasue Matsuya
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Abstract
Method of manufacturing a conductive composition precursor prepared by dispersing or dissolving at least one additive having high dielectric layer repairing ability in conductive polymer solution, the conductive composition made by removing a medium or solvent from this composition precursor. The additive is at least one of “phosphoric acid or phosphoric acid ester compounds”, “phenol or phenol derivatives”, “nitrobenzene derivatives”, “alkyl naphthalene sulfonic acid anion”, “fluorocarbon surface active agent” and “fluorocarbon surface active agent and binder.”
Claims50
A method of manufacturing conductive composition precursor comprising:
- preparing one of solution composition in which soluble conductive polymer is dissolved, and dispersion composition in which conductive polymer particles are dispersed in a medium;
- and
- adding at least one of “one of phosphoric acid and phosphoric acid ester compounds”, “one of phenol and phenol derivatives”, “nitrobenzene derivatives”, “alkyl naphthalene sulfonic acid anion”, “fluorocarbon surface active agent” and “fluorocarbon surface active agent and binder” to one of said solution composition and said dispersion composition.
A method of manufacturing conductive composition comprising:
- removing medium from conductive composition precursor in which:
- (A) one of a solution composition containing soluble conductive polymer and a dispersion composition containing conductive polymer particles;
- and
- (B) at least one of “one of phosphoric acid and phosphoric acid ester compound”, “one of phenol and phenol derivative”, “nitrobenzene derivative” ,“alkyl naphthalene sulfonic acid anion” “fluorocarbon surface active agent” and “fluorocarbon surface active agent and binder” are dissolved or dispersed.
A method of manufacturing a solid electrolytic capacitor comprising:
- preparing a valve metal electrode on which an anodized layer is formed;
- preparing conductive composition precursor in which:
- A) one of solution composition containing soluble conductive polymer and dispersion composition containing conductive polymer particles;
- and
- B) at least one of “one of phosphoric acid and phosphoric acid ester compounds”, “one of phenol and phenol derivative”, “nitrobenzene derivatives”, “alkyl naphthalene sulfonic acid anion”, “fluorocarbon surface active agents” and “fluorocarbon surface active agent and binders” are dissolved or dispersed in a medium;
- applying said conductive polymer precursor on said valve metal electrode;
- and
- removing said medium from said conductive polymer precursor.
A method of manufacturing a solid electrolytic capacitor comprising:
- forming a dielectric layer by anodizing the surface of a valve metal using anodizing solution containing alkyl naphthalene sulfonic acid anion;
- and
- forming a conductive polymer layer on said dielectric layer.
A solid electrolytic capacitor comprising:
- an positive electrode comprising a valve metal;
- an anodized layer formed on the surface of said positive electrode;
- a negative electrode conductive layer comprising conductive polymer;
- and
- a coupling agent layer and surface active agent layer between said anodized layer and said negative electrode conductive layer.
A method of manufacturing a solid electrolytic capacitor comprising:
- forming an anodized layer on a valve metal;
- forming a coupling agent layer on said anodized layer;
- and
- forming a surface active agent layer and conductive polymer layer on said coupling agent layer.
Dependencies are inferred from the claim text.