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US3710201A Expired / Lapsed US ⏱️ 0.0 years remaining

Coulometer with solid electrolyte

Assignee: Sanyo Electric Co Ltd
•
Filing: 1971-02-04
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Granted: 1973-01-09
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Expires: 1991-02-04
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Abstract

Abstract In a solid coulometer comprising two opposite layers, of which one is made of active metal and the other is made of inactive metal, and a layer of solid electrolyte of high iron conductivity sandwiched between them wherein the active metal ion is migrated and deposited on the inactive metal layer on charging and then the deposited active metal ion is removed from the inactive metal layer and re-depodited on the active metal layer on discharging so that an over-voltage is produced at the completion of the redeposition, an improvement where the opposite metal layers are buried in the solid electrolyte layer, the opposite surface area of each of the opposite metal layers being smaller than the surface area of the solid electrolyte layer contacting thereto.

Inventors

  • 👤 H Ikeda
  • 👤 T Kondo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 05:27
CPC Classifications
G; G01; G01R; G01R22/00; G01R22/02

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 17 words
The solid coulometer according to claim 1, wherein the active metal layer consists essentially of amalgamated silver.
Claim 2
Dependent Claim 30 words
The solid coulometer according to claim 1, wherein the active metal layer consists essentially of a dispersion of the same material as constituting the solid electrolyte layer in amalgamated silver.
Claim 3
Dependent Claim 19 words
The solid coulometer according to claim 1, wherein the active metal layer contains a metal more unnoble than silver.

References Cited (Backward Citations)

US3288641A Cited
US3423648A Cited
US3443997A Cited
US3544852A Cited
US3652902A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-09 1976-07-10 1977-01-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-09 1980-07-10 1981-01-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-09 1984-07-10 1985-01-09 $7700.00 Window Closed / Lapsed

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