BATTERY MODULE AND METHOD OF MANUFACTURING THE SAME

A battery module and a method of manufacturing the same includes: a battery cell stack including a plurality of battery cells, a bus bar frame connected to the battery cell stack, at least one electrode lead connected to the battery cell stack and containing a first metal; and a bus bar overlapping...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BAE, Jaehyun, LEE, Changje, HONG, Dae Ji, LEE, Kangil
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRICITY MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A battery module and a method of manufacturing the same includes: a battery cell stack including a plurality of battery cells, a bus bar frame connected to the battery cell stack, at least one electrode lead connected to the battery cell stack and containing a first metal; and a bus bar overlapping with the at least one electrode lead and containing a second metal, the at least one electrode lead and the bus bar are welded to form a welded portion, the welded portion includes a first region in which a central portion is located in the at least one electrode lead and a second region in which the central portion is located in the bus bar, and precipitates of the first metal and the second metal are distributed in both the first region and the second region.