Secondary battery and method of recycling secondary battery
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United States of America Patent
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Sep 21, 2021
Grant Date -
Jun 18, 2020
app pub date -
Feb 25, 2020
filing date -
Dec 27, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
According to one embodiment, in a secondary battery, a first container member has an accommodating space defined by a bottom wall and side walls, and includes a flange, defining an edge of the opening of the accommodating space, at a portion opposite to the bottom wall. The electrode group is accommodated in the accommodating space, and the second container member is arranged to face the flange. A welding part, provided on an outer side relative to the edge of the opening, hermetically welds the flange and the second container member to seal the accommodating space. A projection, provided on one of the flange and the second container member between the welding part and the edge of the opening, projects toward another of the flange and the second container member.
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