Secondary battery and method of manufacturing the same
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United States of America Patent
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Mar 5, 2019
Grant Date -
Jul 26, 2012
app pub date -
Jan 23, 2012
filing date -
Jan 25, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A secondary battery according to an embodiment includes a container having a pouring hole through which an electrolyte is poured, and housing the electrolyte, poured through the pouring hole, together with an electrode body; and a sealing lid which is fixed to the container and is closing the pouring hole. The sealing lid has a welding mark existing in a ring shape with a depth through the sealing lid to a lid body of the container, and an inner circumferential side molten mark existing in a ring shape overlapping with the welding mark, on the inner circumferential side of the welding mark in the sealing lid, with a depth corresponding to the thickness of the sealing lid.
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