Academic Journal

In-depth evaluation of laser welding of thick busbar to 21700 Li-ion cell terminal for electric supercar vehicle battery pack

التفاصيل البيبلوغرافية
العنوان: In-depth evaluation of laser welding of thick busbar to 21700 Li-ion cell terminal for electric supercar vehicle battery pack
المؤلفون: Nikhil Kumar, Venkat Vivek Pamarthi, John Moffat, Iain Masters
المصدر: Journal of Materials Research and Technology, Vol 33, Iss , Pp 3058-3067 (2024)
بيانات النشر: Elsevier, 2024.
سنة النشر: 2024
المجموعة: LCC:Mining engineering. Metallurgy
مصطلحات موضوعية: Electric vehicle (EV), Li-ion battery, Laser welding, Intermetallic compound formation, Weld resistance, Mining engineering. Metallurgy, TN1-997
الوصف: High-performance supercars using Li-ion batteries necessitate thicker aluminium busbars with thin steel joints. However, joining these materials often leads to overheating resulting in brittle intermetallic compounds (IMCs), reduced weld quality, and higher electrical resistance. This study evaluated, laser wobble welding of a nickel-plated Al busbar of 0.9 mm thickness with a 0.3 mm thin 21700 cell nickel-plated steel terminal. An optimised joint using the wobbling method is implemented for the direct application to battery packs, satisfying the current carrying capacity with minimal electrical resistance and enhanced weld quality was generated. Elemental and microhardness analysis revealed the mechanism of IMC formation and observed that the brittle and therefore detrimental Fe2Al5 IMC predominantly forms near the protruding interface between Al-Fe solid solutions.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2238-7854
Relation: http://www.sciencedirect.com/science/article/pii/S2238785424022828; https://doaj.org/toc/2238-7854
DOI: 10.1016/j.jmrt.2024.10.012
URL الوصول: https://doaj.org/article/13f8381e815f4e69940effe7f3198914
رقم الانضمام: edsdoj.13f8381e815f4e69940effe7f3198914
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:22387854
DOI:10.1016/j.jmrt.2024.10.012