Sealed batteries with zinc electrode

Details Sealed batteries with zinc electrode Sealed batteries with zinc electrode

1992-01-21

1992-09-01

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having diverse cells or diverse removable cells in a support...

429 57, 429206, 429229, 429254, H01M 1036

Patent

active

051437996

ABSTRACT:
A sealed rechargeable nickel-zinc or silver-zinc electrochemical cell including two compartments, one having a zinc electrode and a first hydrogen electrode and the other having a nickel or silver electrode and a second hydrogen electrode electrically connected to the first hydrogen electrode. The two compartments share a common gas space. During discharge the cell acts as a conventional nickel-zinc or silver-zinc electrochemical cell. During charging the gases evolved are immediately internally consumed, allowing the entire cell to be sealed. Furthermore, when the cell is fully charged there is a noticeable voltage jump which serves as a clear indication that the cell is fully charged and helps prevent overcharging and its detrimental effects.

REFERENCES:
patent: 3669744 (1972-06-01), Tsenter et al.
patent: 4004068 (1977-01-01), Briggs et al.
patent: 4127703 (1978-11-01), Holleck
patent: 4605603 (1986-08-01), Kanda et al.
patent: 4621034 (1986-11-01), Kanda et al.

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