Leak-resistant dry cells

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...

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429185, H01M 600

Patent

active

040270785

ABSTRACT:
A leak-resistant dry cell comprises a negative electrode formed by a zinc tube which is designed to be consumed when the cell voltage has fallen to e.g. 0.75 volt, a sealed bag of flexible plastics material enclosing said zinc tube and surrounded by a cylindrical jacket, a carbon positive electrode projecting through said bag and sealed thereto, and a tongue extending from the edge of the sidewall of the zinc tube through said bag in sealing relationship therewith, the tongue contacting a negative terminal of the cell.

REFERENCES:
patent: 1205392 (1916-11-01), Rhoades
patent: 2200862 (1940-05-01), Redfern
patent: 3437530 (1969-04-01), Anderson
patent: 3623915 (1971-11-01), Pun et al.
patent: 3795545 (1974-03-01), Kamai

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