In this context, we begin with a theoretical examination of the behavior within the battery during a pulse, providing guidance on how diagnostic experiments should be structured. We consider three common physical types of degradation related to power fade: film resistance R f , which introduces an additional resistance to the overpotential applied to the (de)intercalation reaction, typically arising from solid electrolyte interphase formation ; surface blockage c of kinetics, which reduces the number of available sites at the surface for intercalation, arising from phase transformations at the surface ; and electrolyte loss from parasitic reactions, which changes the availability of the reactant, the concentration of lithium ions in the electrolyte solution c + . Many common degradation mechanisms can be lumped into these three categories, such as cathode electrolyte interphase (CEI) or graphite solid electrolyte interphase (SEI) growth for the film resistance mechanism, structural disordering/phase transitions in nickel-rich materials for the surface blockage , and electrolyte decomposition for the electrolyte loss mechanism . Other types of degradation mechanisms could be integrated as well. By systematically studying the impact of these degradation mechanisms within pulse experiments, we elucidate their individual contributions, facilitating design of diagnostic experiments tailored to distinguish degradation factors.