Welding structure between electric storage device and bus bar and method for welding electric storage device and bus bar together
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United States of America Patent
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Sep 12, 2017
Grant Date -
Dec 25, 2014
app pub date -
Jun 23, 2014
filing date -
Jun 25, 2013
priority date (Note) -
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Abstract
An electric storage apparatus including a welding structure between an electric storage device and a bus bar includes the electric storage device including an external terminal that includes a first connection surface, the bus bar including a second connection surface that overlaps the first connection surface, a first weld portion that is formed extending over the external terminal and the bus bar in a region where the first connection surface and the second connection surface are opposed to each other, and a second weld portion that is formed extending over the external terminal and the bus bar in the region where the first connection surface and the second connection surface are opposed to each other, the second weld portion directly overlapping the first weld portion in a region where the first connection surface and the second connection surface overlap each other.
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