POWER STORAGE DEVICE

WIPO Patent Application WO/2021/153439

A1

This power storage device includes: a case; a power storage element disposed in the case; a lead connected to an electrode of the power storage element; and a sealing member for sealing an opening of the case. The sealing member includes a gasket having a disk-like base part, and a conductive sealing plate. The base part is disposed between the sealing plate and the power storage element. A through-hole is formed in the base part. A protrusion of the sealing plate is inserted into the through-hole. The protrusion of the sealing plate and the lead are connected. The connection between the protrusion and the lead is disconnected as the protrusion is displaced in the direction going away from the lead in response to a rise in internal pressure inside the case.

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GESHI SHINYA
KOHIRA KAZUTOSHI
KUME SHINGO

PCT/JP2021/002187

August 05, 2021

January 22, 2021

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PANASONIC IP MAN CO LTD (JP)

H01M50/572; H01G2/14; H01G2/18; H01G11/18; H01G11/78; H01M50/147; H01M50/172; H01M50/342; H01M50/531

WO2016157750A1	2016-10-06
WO2016157749A1	2016-10-06

JP2009266714A	2009-11-12
JP2013242975A	2013-12-05
JP2012174563A	2012-09-10
JPH11224659A	1999-08-17
JPH11111254A	1999-04-23
JPH07254402A	1995-10-03

KAMATA Kenji et al. (JP)

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