A method for the reproducible and accurate determination of electrical resistances based on multi-layer joints in lithium-ion batteries

Sophie Grabmann, Christian Bernauer, Lovis Wach, Matthias Leeb and Michael F. Zaeh

Applied Energy, 2023, vol. 349, issue C, No S0306261923009777

Abstract: The transition from fossil fuels to renewable energy sources is significantly influenced by the development of energy storage systems such as batteries. One of the crucial steps in the production of lithium-ion batteries is the electrical connection of the individual electrodes by weld seams. Various joining processes, such as laser beam welding or ultrasonic metal welding, are used for this purpose. An important quality feature of the connections is a low electrical joint resistance, which is essential for reducing cell-internal energy losses and avoiding thermal inhomogeneities in the cells.

Keywords: Electro mobility; Battery production; Electrical resistance measurement; Metrology; Cell-internal joining; Laser beam welding (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1016/j.apenergy.2023.121613

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