2024

Vol.31 No.2

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  • Journal of the Microelectronics and Packaging Society
  • Volume 30(2); 2023
  • Article

Review

Journal of the Microelectronics and Packaging Society 2023;30(2):33-42. Published online: Aug, 18, 2023

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DOI : doi.org/10.6117/kmeps.2023.30.2.033

Battery Module Bonding Technology for Electric Vehicles

  • Junghwan Bang1,†, Shin-Il Kim1,2, Yun-Chan Kim1,2, Dong-Yurl Yu1 , Dongjin Kim1 , Tae-Ik Lee1 , Min-Su Kim1 , and Jiyong Park1
    1 Advanced Joining & Additive Manufacturing R&D Department, Korea Institute of Industrial Technology(KITECH), 156, Gaetbeol-ro, Yeonsu-gu, Incheon 21999, Korea, 2 Department of Material Science and Engineering, Korea University, Seoul, 02841, Korea
Corresponding author E-mail: nova75@kitech.re.kr
Abstract

Throughout all industries, eco-friendliness is being promoted worldwide with focus on suppressing the environmental impact. With recent international environment policies and regulations supported by government, the electric vehicles demand is expected to increase rapidly. Battery system itself perform an essential role in EVs technology that is arranged in cells, modules, and packs, and each of them are connected mechanically and electrically. A multifaceted approach is necessary for battery pack bonding technologies. In this paper, pros and cons of applicable bonding technologies, such as resistance welding, laser and ultrasonic bonding used in constructing electric vehicle battery packs were compared. Each bonding technique has different advantages and limitations. Therefore, several criteria must be considered when determining which bonding technology is suitable for a battery cell. In particular, the shape and production scale of battery cells are seen as important factors in selecting a bonding method. While dealing with the types and components of battery cells, package bonding technologies and general issues, we will review suitable bonding technologies and suggest future directions.

Keywords Battery joining technologies, Electric Vehicle, Battery cell, Battery module, Dissimilar materials

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