Vent for cylindrical electrochemical batteries

Details Vent for cylindrical electrochemical batteries Vent for cylindrical electrochemical batteries

2006-07-11

2006-07-11

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

C429S056000, C429S165000

Reexamination Certificate

active

07074516

ABSTRACT:
An electrochemical cell is presented having a gasket that is sealed against the container to prevent electrolyte leakage during normal operation. When the internal pressure of the cell reaches a predetermined threshold, the seal is removed, thereby permitting electrolyte to escape through a vent.

REFERENCES:
patent: 3355329 (1967-11-01), Wilke et al.
patent: 3663301 (1972-05-01), Ralston et al.
patent: 4442184 (1984-04-01), Spanur
patent: 4628012 (1986-12-01), Spahrbier
patent: 4999246 (1991-03-01), Jechel et al.
patent: 5814419 (1998-09-01), Kenyon et al.
patent: 2 143 365 (1985-02-01), None
patent: WO 00/67335 (2000-11-01), None

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