BATTERY
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United States of America Patent
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Issued Date -
Feb 11, 2021
app pub date -
Apr 3, 2019
filing date -
Apr 6, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A battery includes: a batter can having a cylindrical portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuing to the other end of the cylindrical portion; an electrode body housed in the cylindrical portion; a sealing body fixed to the open rim so as to seal an opening defined by the open rim; and a electrically insulating film disposed on at least part of at least an inner wall of the battery can. The sealing body includes a sealing plate and a gasket disposed at a peripheral portion of the sealing plate. The insulating film has a first portion covering at least part of a first region of the inner wall corresponding to between an end of the gasket on the electrode body side and an end of the electrode body on the gasket side.
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