Nonaqueous cell with improved thermoplastic sealing member

Details Nonaqueous cell with improved thermoplastic sealing member Nonaqueous cell with improved thermoplastic sealing member

2011-04-05

2011-04-05

Conley, Helen O (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

C429S057000, C429S072000, C429S163000, C429S174000

Reexamination Certificate

active

07919202

ABSTRACT:
An electrochemical battery cell with an aperture in the container or cell cover has the aperture sealed by an improved thermoplastic sealing member, which forms at least a part of the cell's pressure relief vent and is made from a material comprising a thermoplastic resin and more than 10 weight percent of a thermal-stabilizing filler, to provide an effective seal and a reliable pressure relief vent over a broad temperature range.

REFERENCES:
patent: 3873369 (1975-03-01), Kamenski
patent: 4580790 (1986-04-01), Doose

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