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arXiv · 2601.01691

Cross-Directional Modelling and Control of Slot-Die Battery Electrode Coating

Hyuntae Kim·Idris Kempf
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Abstract

As global battery demand increases, real-time process control becomes increasingly important for battery electrode manufacturing, yet slot-die lines are still mostly manually operated in open loop. This paper develops a physics-based modelling-and-control pipeline for film-thickness regulation. Computational fluid dynamics (CFD) simulations provide the data from which a low-order cross-directional model is identified and calibrated. Numerical simulations demonstrate close agreement between the CFD and the cross-directional model, which is used to design a controller that can be used in both real-time, automated feedback operation and manual feedforward operation during line commissioning.

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Hyuntae Kim, Idris Kempf. 2026-01-04. Cross-Directional Modelling and Control of Slot-Die Battery Electrode Coating. https://arxiv.org/abs/2601.01691

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