Closed type battery
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United States of America Patent
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N/A
Issued Date -
Jul 17, 2003
app pub date -
Jan 3, 2003
filing date -
Jan 9, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a closed type battery comprising an electrode terminal formed by caulking a metal material mounted on a battery can via an insulating member with a different metal, wherein changes in contact resistance with years are reduced. In the electrode terminal, an electrode-drawing sheet mounted on the battery header through an insulating member is caulked integrally with an electrode-leading pin formed of a metal different from a metal forming the electrode-drawing sheet. A joint is provided by laser welding on at least one site on a surface portion of contact of the electrode-drawing sheet with the electrode-leading pin.
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