The Importance of Being Spiral: New Study on Cylindrical Battery Modeling
One of our latest studies, Modeling Heat Transfer in Cylindrical Batteries: Spiral-Based Thermal Conductivity Tensor, explores how the internal spiral-shaped structure of Li-ion batteries affects the temperature field — and whether the commonly used simplifications in thermal models hold up under scrutiny. Many models assume a concentric cylindrical layout of electrodes and separators, leading to orthotropic thermal conductivity with constant radial, tangential, and axial components.But