Secondary battery of excellent productability and safety
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United States of America Patent
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Apr 17, 2018
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N/A
app pub date -
May 31, 2013
filing date -
Dec 15, 2010
priority date (Note) -
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Abstract
Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulating member is mounted on the top of the jelly-roll and the insulating member includes a perforated inlet enabling gas discharge and penetration of electrode terminals and a plurality of pores with a diameter of 100 μm or less provided over the entire surface of the insulating member.
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