Safety vent for storage battery or cell
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 12, 2000
Grant Date -
N/A
app pub date -
Mar 25, 1999
filing date -
Mar 30, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Safety vent for a battery, sensitive to an abnormal rise in temperature, closed by a cover (4), separated from the active materials by an insulating element (21) and carrying two contact terminals (7, 8) electrically connected to the electrodes via connection means (5, 6), wherein at least one of the contact terminals (7, 8) is formed at least partially by a rigid metal rod (30), mounted with an annular clearance (18) in a tube (11) of which one portion (11a) of smaller diameter passes through the insulating element (21) and the cover (4), and of which a portion (11b) of larger diameter rests on the inner face (21a) of the insulating element (21), the other end (13) thereof being crimped over the outer face (4b) of the cover (4) and in that the clearance (18) formed between the tube (11) and the rod (30) is sealed by a thermofusible composition (14).
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