Valve Cap For An Electric Storage Cell

Patent · Tue Apr 18 00:00:00 EDT 2000

OSTI ID:879205

Verhoog, Roelof ^[1]; Genton, Alain ^[2]

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1. Bordeaux, FR
2. Merignac, FR

The valve cap for an electric storage cell includes a central annular valve seat (23) and a membrane (5) fixed by its peripheral edge and urged against the seat by a piston (10) bearing thereagainst by means of a spring (12), the rear end of said spring (12) bearing on the endwall (8) of a chamber (20) formed in the cap and containing the piston (10) and the spring. A vent (19) puts the chamber (20) into communication with the atmosphere. A central orifice (26, 28) through the piston (10) and the membrane (5), enables gas from within the cell to escape via the top vent (19) when the valve opens.

• Research Organization: US ADVANCED BATTERY CONSORTIUM
• DOE Contract Number: FC02-91CE50336
• Assignee: Alctael (Paris, FR)
• Patent Number(s): US 6051332
• Application Number: 08/070875
• OSTI ID: 879205
• Country of Publication: United States
• Language: English