ELECTRIC STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Oct 11, 2018
app pub date -
Jun 13, 2018
filing date -
Jun 13, 2018
priority date (Note) -
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Abstract
A miniaturized electric storage device having a first case piece and a second case piece joined by welding over the entire periphery at an overlapping portion of a first side wall portion and a second side wall portion. Of the welded portions formed on the side surfaces of the case, the width of the welded portion formed on the corner portions of the case is smaller than the width of the welded portion formed on the side surfaces of the case.
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