Moreover, our study underlines the significant implications that may arise from oversimplifying the treatment of phase-separating materials, both computationally and experimentally. Although singleparticle models have demonstrated their ability to predict constant current voltage profiles , they fall short in capturing behaviors intrinsically linked to the active particle population and phase separation that, as shown here, have a significant effect on the voltage profile prediction and the subsequent management and optimization of battery operations . It becomes so critical, when modeling phaseseparating materials, to account for multi-particle dynamics and phase-separation kinetics to correctly predict voltage and current responses in complex protocols. Thus, this study proves the necessity of phase-field methods for improving state-of-the-art battery management strategies , since combining multi-step protocols with physically consistent models can maximize the active particle population, directly translating into the reduction of intra-particle stresses, side reactions, heat generation, and energy consumption.