SECONDARY BATTERY, AND BATTERY MODULE AND DEVICE COMPRISING SAME

WIPO Patent Application WO/2024/029684

A1

The present invention provides a secondary battery comprising: an electrode assembly; an electrode current collector extending from the electrode assembly; an electrode tab electrically connected to the electrode current collector; and a current blocking member between the electrode current collector and the electrode tab, in order to improve the lifespan and stability of the secondary battery by blocking a current in an abnormal operation state of the secondary battery. The current blocking member includes a first member connected to the electrode current collector and including a PTC element and a second member connected to the electrode tab. The first member includes a structure separated from the electrode current collector by protruding upward in a direction of the electrode tab at a predetermined current value or more.

JPH11144705	EXPLOSION-PROOF NON AQUEOUS ELECTROLYTE SECONDARY BATTERY AND ITS BREAKING PRESSURE SETTING METHOD
WO/2019/202030	BATTERY MANAGEMENT SYSTEM HAVING SWITCH CONTROL, IN PARTICULAR FOR A RAIL VEHICLE
JP6054517	Nonaqueous electrolyte secondary battery

HWANG HO JIN (KR)
KIM YOUNG HA (KR)
KIM JI HYUNG (KR)
LEE SANG BIN (KR)

PCT/KR2023/005040

February 08, 2024

April 13, 2023

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SK ON CO LTD (KR)

H01M50/574; H01M50/172; H01M50/211; H01M50/533

KR102080903B1	2020-02-24
KR101772415B1	2017-09-12
US20190013509A1	2019-01-10
JP6599129B2	2019-10-30
KR102055853B1	2019-12-13

OH, Jong Han et al. (KR)

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