리튬이온 배터리용 다층박판 금속의 초음파 용착시 용착강도 (Welding Strength in the Ultrasonic Welding of Multi-layer Metal Sheets for Lithium-Ion Batteries)

서지정보

· 발행기관 : 한국기계가공학회
· 수록지 정보 : 한국기계가공학회지 / 20권 / 6호 / 100 ~ 107페이지
· 저자명 : 김진범, 서지원, 박동삼

초록

As a significant technology in the smartization era promoted by the Fourth Industrial Revolution, thesecondary battery industry has recently attracted significant attention. The demand for lithium-ion batteries(LIBs), which exhibit excellent performance, is considerably increasing in different industrial fields. During themanufacturing process of LIBs, it is necessary to join the cathode and anode sheets with thicknesses ofseveral tens of micrometers to lead taps of the cathode and anode with thicknesses of several hundreds ofmicrometers. Ultrasonic welding exhibits excellent bonding when bonded with very thin plates, such asnegative and positive electrodes of LIBs, and dissimilar and highly conductive materials. In addition,ultrasonic welding has a small heat-affected zone. In LIBs, Cu is mainly used as the negative electrode sheet,whereas Cu or Ni is used as the negative electrode tab. In this study, one or two electrode sheets (t0.025mm Cu) were welded to one lead tab (t0.1 mm Cu). The welding energy and pressure were used as weldingparameters to determine the welding strength of the interface between two or three welded materials. Finally,the effects of these welding parameters on the welding strength were investigated.

영어초록

As a significant technology in the smartization era promoted by the Fourth Industrial Revolution, thesecondary battery industry has recently attracted significant attention. The demand for lithium-ion batteries(LIBs), which exhibit excellent performance, is considerably increasing in different industrial fields. During themanufacturing process of LIBs, it is necessary to join the cathode and anode sheets with thicknesses ofseveral tens of micrometers to lead taps of the cathode and anode with thicknesses of several hundreds ofmicrometers. Ultrasonic welding exhibits excellent bonding when bonded with very thin plates, such asnegative and positive electrodes of LIBs, and dissimilar and highly conductive materials. In addition,ultrasonic welding has a small heat-affected zone. In LIBs, Cu is mainly used as the negative electrode sheet,whereas Cu or Ni is used as the negative electrode tab. In this study, one or two electrode sheets (t0.025mm Cu) were welded to one lead tab (t0.1 mm Cu). The welding energy and pressure were used as weldingparameters to determine the welding strength of the interface between two or three welded materials. Finally,the effects of these welding parameters on the welding strength were investigated.

참고자료

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