Closed type battery
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jun 26, 2003
app pub date -
Dec 24, 2002
filing date -
Dec 25, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention provides a closed type battery wherein there is no need of joining a tab joined to a battery element and an external circuit connection lead to an electrode terminal provided on a battery can via an insulating member. After the battery element is received in the battery can, a tab joined to the battery element is inserted through a tab sleeve formed integrally with a metal sheet of the battery header. In this state, the battery header is attached over an opening in the battery can, and the junction of the battery header and the battery can is sealed up by laser welding. Finally, an insulating member is inserted over the inside surface of the sleeve, which is then caulked.
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