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KCI Accredited Journals KCI 등재지
KCI Impact Factor 0.54
Journal of the Microelectronics and Packaging Society 2019;26(4):1-6. Published online: Mar, 23, 2020
DOI : 10.6117/kmeps.2019.26.4.001
Recently, as electric vehicles and hybrid vehicles are widely used, the use of rechargeable batteries is increasing. Electric and hybrid cars are made up of hundreds to thousands of electric cells depending on the car model. And the assembly process of the cells and modules requires a variety of bonding process. Meanwhile, in order to connect several cells in series, Cu used as a cathode and Al of an anode must be bonded. In this paper, the characteristics of Al and Cu metals, laser types, characteristics and principles of welding lasers for welding of Cu and Al electrodes are introduced.
Keywords laser welding, Al-Cu electrode, rechargeable battery, electric and hybrid vehicle