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US4735823A
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Organic semiconductor electrolyte capacitor and process for producing the same
Assignee: Nippon Chemi Con Corp
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Filing: 1986-09-15
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Granted: 1988-04-05
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Expires: 2006-09-15
Abstract
Abstract An organic semiconductor electrolyte capacitor and a process for producing such a capacitor having improved loss and impedance characteristics and which can be produced using a simple apparatus and with reduced waste of expensive materials. A dielectric oxide film is formed on the surface of a metal anode, and a solid-electrolyte layer is formed on the dielectric oxide film. The electrolyte layer is made by melting and solidifying a mixture of an isopropylisoquinolinium tetracyanoquinodimethane complex salt and a lactone compound.
Inventors
- 👤 Takato Ito
- 👤 Akihiro Shimada
- 👤 Kimio Uchiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:56
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/02; H01G9/022; H01G9/025; H01G9/028
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
134 words
A process for producing an organic semiconductor electrolyte capacitor comprising: (1) forming a metal anode and a collector electrode; (2) positioning a separator between said anode and collector electrode; (3) forming a dielectric oxide film on a surface of said metal anode to thereby form a capacitor element, and (4) forming an organic semiconductor electrolyte layer on said oxide film, said organic semiconductor electrolyte layer being formed by: (a) mixing a lactone compound with an isopropyl-isoquinolinium tetracyanoquinodimethane complex salt, (b) melting said mixture by heating to a temperature lower than the melting point or thermal decomposition point of the isopropyl-isoquinolinium tetracyanoquinodimethane complex salt (c) dipping said capacitor element in the molten mixture, (d) recovering said element from the melt, and (e) cooling said element so as to solidify a film of said molten mixture.
Claim 2
Dependent Claim
134 words
A process for producing an organic semiconductor electrolyte capacitor comprising: (1) forming a metal anode and a collector electrode; (2) positioning a separator between said anode and collector electrode; (3) forming a dielectric oxide film on a surface of said metal anode to thereby form a capacitor element, and (4) forming an organic semiconductor electrolyte layer on said oxide film, said organic semiconductor electrolyte layer being formed by: (a) mixing a lactone compound with an isopropyl-isoquinolinium tetracyanoquinodimethane complex salt, (b) melting said mixture by heating to a temperature lower than the melting point or thermal decomposition point of the isopropyl-isoquinolinium tetracyanoquinodimethane complex salt (c) dipping said capacitor element in the molten mixture, (d) recovering said element from the melt, and (e) cooling said element so as to solidify a film of said molten mixture.
Claim 3
Dependent Claim
35 words
The process according to claim 1, wherein said lactone compound is at least one member selected from the group consisting of γ-butyrolactone, γ-valerolactone, δ-valerolactone, ε-caprolactone, γ-heptalactone, δ-nonalactone, DL-pantoyllactone, γ-hexalactone, γ-octalactone, γ-nonalactone, γ-decalactone, γ-undecalactone and γ-dodecalactone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |