Battery having welded lead plate
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United States of America Patent
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-
Apr 30, 2002
Grant Date -
Mar 21, 2002
app pub date -
Aug 27, 1999
filing date -
Aug 31, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The battery has an electrode assembly inserted into a cylindrical external case. A lead plate connected to the electrode assembly is weld attached to the inner surface of the external case by an energy beam applied from outside the external case. The external case has a projection jutting from its inner surface. The energy beam is applied to the projection from outside the external case and weld attaches the lead plate to the inner surface of the projection.
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