CYLINDRICAL SECONDARY BATTERY

A cylindrical secondary battery includes: an electrode assembly; a cylindrical can accommodating the electrode assembly and having a terminal hole (110a) at a first end; and a terminal portion coupled to the first end of the can and electrically connected to the electrode assembly, and the can furth...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YOO, Yoon Sun, JUNG, Hyun Ki, KIM, Myung Seob, KO, Sung Gwi, YU, Gwan Hyeon, JUN, Woo Tae, PARK, Gun Gue
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	A cylindrical secondary battery includes: an electrode assembly; a cylindrical can accommodating the electrode assembly and having a terminal hole (110a) at a first end; and a terminal portion coupled to the first end of the can and electrically connected to the electrode assembly, and the can further includes a coupling groove (112) and a coupling protrusion (114) adjacent to the terminal hole on a portion through which the terminal hole passes. In the cylindrical secondary battery according to embodiments of the present disclosure, a sealing force of the cylindrical secondary battery may be increased by providing a groove and a protrusion in the can that is a region to which a rivet terminal is coupled.