SECONDARY BATTERY

The present disclosure relates to a secondary battery, and provides a secondary battery capable of reducing heat generation and improving safety by reducing a welding area. To this end, the present disclosure provides a secondary battery comprising: an electrode assembly having a first tab and a sec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JUNG, Hyun Ki, KIM, Myung Seob, LEE, Won Sug
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
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The present disclosure relates to a secondary battery, and provides a secondary battery capable of reducing heat generation and improving safety by reducing a welding area. To this end, the present disclosure provides a secondary battery comprising: an electrode assembly having a first tab and a second tab provided at the opposite side to the first tab; a first current collector which is welded on the first tab of the electrode assembly and has a diameter that is greater than the diameter of the electrode assembly; and a case assembly comprising a case which accommodates the electrode assembly and the first current collector, a second current collector which is in close contact with the second tab of the electrode assembly, and a terminal unit which is electrically connected to the second current collector and penetrates through the case.