Cited by 48Advanced Measurement and Metrology TechniquesOptical measurement and interference techniquesWelding Techniques and Residual Stresses

Overview of Optical Digital Measuring Challenges and Technologies in Laser Welded Components in EV Battery Module Design and Manufacturing

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Saariluoma, Heikki, Piiroinen, Aki, Unt, Anna, Hakanen, Jukka, Rautava, Tuomo, Salminen, Antti·2020·Batteries

Abstract

Ensuring the precision and repeatability of component assembly in the production of electric vehicle (EV) battery modules requires fast and accurate measuring methods. The durability of EV battery packs depends on the quality of welded connections, therefore exact positioning of the module components is critical for ensuring safety in exploitation. Laser welding is a non-contact process capable of welding dissimilar materials with high precision, for that reason it has become the preferred joining method in battery production. In high volume manufacturing, one of the main production challenges is reducing the time required for assessment of dimensional and geometrical accuracy prior to joining. This paper reviews the challenges of EV battery design and manufacturing and discusses commercially available scanner-based measurement systems suitable for fabrication of battery pack components. Versatility of novel metrological systems creates new opportunities for increasing the production speed, quality and safety of EV battery modules.

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  1. Kirchhoff, M. Laser Applications in Battery Production-From Cutting Foils to Welding the Case. 2013, pp. 1-3. Available online: https://ieeexplore.ieee.org/abstract/document/6689743/ (accessed on 14 September 2020).
  2. Kaiser, E.; Dold, E.M.; Killi, A.; Zaske, S.; Pricking, S. Application benefits of welding copper with a 1 kW, 515 nm continuous wave laser. Batter. Congr. 2019, 2019, 1-6.
  3. Wang, Z.; Nguyen, D.A.; Barnes, J. Recent advances in 3D shape measurement and imaging using fringe projection technique. In Proceedings of the Society for Experimental Mechanics-SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009, Albuquerque, NM, USA, 1-4 June 2009; Volume 4, pp. 2644-2653.

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Authors
Saariluoma, H., Piiroinen, A., Unt, A., Hakanen, J., Rautava, T., & Salminen, A.
Affiliations
  • Turku University of Applied Sciences (FI)
  • University of Turku (FI)
  • Lappeenranta-Lahti University of Technology (FI)
  • Valmet Automotive (Finland) (FI)
Corresponding author
Saariluoma, Heikki
Venue
Batteries
Publisher
MDPI AG
Published
2020-09-16
Volume
6
Issue
3
Pages
47
ISSN
2313-0105 (ISSN-L)
OpenAlex
W3084996845
Cited by
48
References
50
Citations by year
2026: 7 · 2025: 6 · 2024: 11 · 2023: 7 · 2022: 12 · 2021: 5
FWCI
2.95
Type
journal article
Language
en
Open access
Locations
  • Batteries (publishedVersion, cc-by)
  • UTUPub (University of Turku) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Business Finland (2209/31/2017 and 9015/31/2017)
  • Strategic Research Council (313398)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Advanced Measurement and Metrology Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Optical measurement and interference techniques
  • Physical Sciences › Engineering › Mechanical Engineering › Welding Techniques and Residual Stresses
Keywords
laser welding, dimensional accuracy, geometric accuracy, dissimilar material joining, non-contact measurement

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