SEALED TYPE BATTERY
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United States of America Patent
Stats
-
N/A
Issued Date -
May 9, 2013
app pub date -
Feb 23, 2011
filing date -
Jul 9, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A sealed type battery includes: a can where an electrode winding group; a lid which has a liquid filling hole for injecting a liquid electrolyte and seals an opening of the can; and a liquid filling tap which is fitted to the liquid filling hole and seals the liquid filling hole by welding. A projection molten in welding is provided on one of the outer surface of the liquid filling tap and the outer surface of the lid connected to the liquid filling hole. The liquid filling tap is welded to the liquid filling hole using molten metal of the projection in welding as well.
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