US4414607A
Expired / Lapsed
US
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Solid state electric double layer capacitor
Assignee: Panasonic Holdings Corp
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Filing: 1981-06-23
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Granted: 1983-11-08
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Expires: 2001-06-23
Abstract
Abstract A solid state electric double layer capacitor comprising a polarization electrode, a non-polarization electrode, and a solid electrolyte disposed at least between the polarization electrode and the non-polarization electrode, the polarization electrode being a mixture of carbon and the solid electrolyte, mixed with each other in a predetermined ratio, the non-polarization electrode being another mixture of the solid electrolyte and a composition containing Cu and a substance selected from a group consisting of Cu 2 S and TiS 2 , and the solid electrolyte having a chemical composition of K x Rb 1-x Cu 4 I y Cl 5-y (0.1≦x ≦0.25, 1.25≦y≦1.67).
Inventors
- 👤 Satoshi Sekido
- 👤 Yoshito Ninomiya
- 👤 Yoshihiro Yamazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:00
CPC Classifications
H; H01; H01G; H01G11/00; H01G11/04; H01G11/22; H01G11/30; H01G11/32; H01G11/34; H01G11/38; H01G11/54; H01G11/56; Y; Y02; Y02E; Y02E60/00; Y02E60/13
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
101 words
A solid state electric double layer capacitor comprising: a polarization electrode, a non-polarization electrode, and a solid electrolyte disposed at least between said polarization electrode and said non-polarization electrode, said polarization electrode being a mixture of carbon and said solid electrolyte, mixed with each other in a predetermined ratio, said non-polarization electrode being another mixture of said solid electrolyte and a composition containing Cu and a substance selected from a group consisting of Cu 2 S and TiS 2 , and said solid electrolyte having a chemical composition of K x Rb 1-x Cu 4 I y Cl 5-y (0.1≦x≦0.25, 1.25≦y≦1.67).
Claim 2
Dependent Claim
101 words
A solid state electric double layer capacitor comprising: a polarization electrode, a non-polarization electrode, and a solid electrolyte disposed at least between said polarization electrode and said non-polarization electrode, said polarization electrode being a mixture of carbon and said solid electrolyte, mixed with each other in a predetermined ratio, said non-polarization electrode being another mixture of said solid electrolyte and a composition containing Cu and a substance selected from a group consisting of Cu 2 S and TiS 2 , and said solid electrolyte having a chemical composition of K x Rb 1-x Cu 4 I y Cl 5-y (0.1≦x≦0.25, 1.25≦y≦1.67).
Claim 3
Dependent Claim
21 words
A solid state electric double layer capacitor in accordance with claim 1 further comprising a reference electrode which comprises said electrolyte.
Claim 4
Dependent Claim
23 words
A solid state electric double layer capacitor in accordance with claim 1 further comprising current collectors for said polarization and said non-polarization electrodes.
Claim 5
Dependent Claim
52 words
A solid state electric double layer capacitor in accordance with Claim 1, 2 or 3, wherein said non-polarization electrode is a mixture of 10 wt % of said solid electrolyte and 90 wt % of a composition which comprises 60 wt % of Cu and 40 wt % of Cu 2 S.
Claim 6
Dependent Claim
35 words
A solid state electric double layer capacitor in accordance with claim 1, 2 or 3, wherein said non-polarization electrode is a mixture of a compound of Cu x TiS 2 (0.7≦x≦0.9) and said solid electrolyte.
Claim 7
Dependent Claim
31 words
A solid state electric double layer capacitor in accordance with Claim 1, 2 or 3, wherein said mixture for said polarization electrode is a mixture heat-treated in vacuum at 250°-300° C.
Claim 8
Dependent Claim
24 words
A solid state electric double layer capacitor in accordance with claim 3 further comprising graphite paint layers on said current collectors for both electrodes.
References Cited (Backward Citations)
US4363079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |