Primary dry cell with gas-venting passageway around the cathode

Details Primary dry cell with gas-venting passageway around the cathode Primary dry cell with gas-venting passageway around the cathode

1974-12-30

1976-02-24

Mack, John H.

Batteries: thermoelectric and photoelectric

Thermoelectric

Radiation pyrometer

136177, H01M 606

Patent

active

039402878

ABSTRACT:
Primary dry cell comprising a metal anode cup having a cathode mix therein, separated from the side wall of the anode cup by a porous, ionically permeable separator, and having an open end which is gas-tightly sealed by a closure including a vent, wherein a gas-venting passageway is provided around the cathode mix comprising a longitudinal groove in the side wall of the anode cup communicating with the void space defined between the cathode mix and the seal closure.

REFERENCES:
patent: 3877992 (1975-04-01), Urry

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