Battery outer case for receiving a flat battery pack joined by seam-rolling
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United States of America Patent
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Mar 22, 2011
Grant Date -
Jun 8, 2006
app pub date -
Sep 13, 2005
filing date -
Sep 22, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A battery outer case can provide space saving by reducing the length of protrusion of joint portions between a metal container main body and a metal lid, is free from a thermal influence, and can make it unnecessary to employ additional or extra parts such as a gasket. The battery outer case includes the metal container main body having at least one surface opened with a flat battery pack composed of flat type batteries received therein, and a metal lid for closing an opening formed in the metal container main body. The inside of the container is in communication with the outside thereof so as to have air permeability, and an open end periphery of the metal container main body and a lid end periphery of the metal lid are joined to each other by seaming.
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