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US2934580A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrolytic cell, particularly accumulator cell

Assignee: "BUREAU TECHNIQUE GAUTRAT"
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Filing: 1955-01-14
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Granted: 1960-04-26
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Expires: 1975-01-14
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Abstract

No abstract record available.

Inventors

  • 👤 Neumann Georg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 11:36
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/50; H01M6/5005; H01M10/00; H01M10/42; H01M10/4235; H01M2200/00; H01M2200/30; Y; Y02; Y02E; Y02E60/00; Y02E60/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 122 words
AN ALKALINE STORAGE BATTERY CELL COMPRISING A POSITIVE ELECTRODE, A NEGATIVE ELECTRODE HAVING A GREATER CHARGE CAPACITY THAN SAID POSITIVE ELECTRODE, A FORM-STABLE LAYER INTERMEDIATE OF, AND IN ELECTRICALLY CONDUCTIVE CONTACT WITH, SAID ELECTRODES, SAID LAYER BEING IMPREGNATED WITH AN ALKALINE ELECTROLYTE CONTAINING A REDUCIBLE CADMIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CANDIUM OXIDE AND CADMIUM HYDROXIDE AS CONTIGUOUS PARTICLES FORMING ELECTRICALLY CONDUCTING BRIDGE-LIKE CONNECTIONS BETWEEN SAID ELECTRODES WHEN THEIR POLARITIES ARE REVERSED, AND ELECTRICAL RESISTANCE MEANS SUPPLEMENTING DURING RECHARGE OF THE CELL THE RESISTANCE OF SAID INTERMEDIATE LAYER TO PRODUCE AN OXIDIZING POTENTIAL AT SAID POSITIVE ELECTRODE, SAID ELECTRICALLY CONDUCTING CONNECTIONS BETWEEN THE ELECTRODES BEING BROKEN BY REOXIDATION OF THE CADMIUM WHEN THE ORIGINAL POLARITY OF THE ELECTRODES IS RESTORED.
Claim 2
Dependent Claim 122 words
AN ALKALINE STORAGE BATTERY CELL COMPRISING A POSITIVE ELECTRODE, A NEGATIVE ELECTRODE HAVING A GREATER CHARGE CAPACITY THAN SAID POSITIVE ELECTRODE, A FORM-STABLE LAYER INTERMEDIATE OF, AND IN ELECTRICALLY CONDUCTIVE CONTACT WITH, SAID ELECTRODES, SAID LAYER BEING IMPREGNATED WITH AN ALKALINE ELECTROLYTE CONTAINING A REDUCIBLE CADMIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CANDIUM OXIDE AND CADMIUM HYDROXIDE AS CONTIGUOUS PARTICLES FORMING ELECTRICALLY CONDUCTING BRIDGE-LIKE CONNECTIONS BETWEEN SAID ELECTRODES WHEN THEIR POLARITIES ARE REVERSED, AND ELECTRICAL RESISTANCE MEANS SUPPLEMENTING DURING RECHARGE OF THE CELL THE RESISTANCE OF SAID INTERMEDIATE LAYER TO PRODUCE AN OXIDIZING POTENTIAL AT SAID POSITIVE ELECTRODE, SAID ELECTRICALLY CONDUCTING CONNECTIONS BETWEEN THE ELECTRODES BEING BROKEN BY REOXIDATION OF THE CADMIUM WHEN THE ORIGINAL POLARITY OF THE ELECTRODES IS RESTORED.

References Cited (Backward Citations)

US499848A Cited
US858862A Cited
US2104973A Cited
US2131592A Cited
US2634303A Cited
US2614138A Cited
US2646455A Cited
US2653180A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-04-26 1963-10-26 1964-04-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-04-26 1967-10-26 1968-04-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-04-26 1971-10-26 1972-04-26 $7700.00 Window Closed / Lapsed

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