Rechargeable battery which combats shape change of the zinc anod

Details Rechargeable battery which combats shape change of the zinc anod Rechargeable battery which combats shape change of the zinc anod

1975-08-13

1976-08-03

Mack, John H.

Batteries: thermoelectric and photoelectric

Thermoelectric

Radiation pyrometer

136143, H01M 438

Patent

active

039727270

ABSTRACT:
A rechargeable cell or battery is provided in which shape change of the zinc anode is combatted by profiling the ionic conductivity of the paths between the electrodes so that ion flow is greatest at the edges of the electrodes and least at the centers thereof, thereby reducing migration of the zinc ions from edges to the center of the anode. A number of embodiments are disclosed, wherein the strength and/or amount of electrolyte, and/or the number and/or size of the paths provided by the separator between the electrodes, are varied to provide the desired ionic conductivity profile.

REFERENCES:
patent: 3226260 (1965-12-01), Drengler
patent: 3505115 (1970-04-01), McBreen
patent: 3672998 (1972-06-01), Dailand, Jr.
patent: 3876470 (1975-04-01), McBreen

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