In this work, we cycled 5.4 Ah multilayer pouch cells in different state of charge (SoC) windows using voltage trajectories. These voltage trajectories were based on different constant anode potentials and derived from physicochemical-thermal simulations. 

Read the open-access article here: https://iopscience.iop.org/article/10.1149/1945-7111/ade1ff

Our highlights include: 📄
💡 low charging times of ≈10 min for 50% ΔSoC and ≈19 min for 70% ΔSoC at the beginning-of-life, which increased significantly by a factor of 2 to 3 over aging. 
💡 high fitting quality in the degradation mode analysis with an RMSE <4 mV at the beginning-of-life and <8 mV at 70% at the end-of-life.
💡 the loss of lithium inventory is the main degradation mode with a linear correlation to the SoH, causing the charging time to increase due to a significantly changed cell balancing. 
💡 the post-mortem analysis confirms the degradation mode results with further silicon amorphization. 

Additionally, we provide the physicochemical-thermal COMSOL models, the degradation mode analysis toolbox, and the cycling raw data open access, available under https://mediatum.ub.tum.de/1766548