Assess students' ability to apply the Nernst equation and Butler-Volmer kinetics to model charge-transfer in Li-ion electrodes, quantify overpotential, and include mass-transport limitations. Tasks include deriving equilibrium potentials from Nernst, using Butler-Volmer and Tafel limits to relate current and overpotential, coupling with diffusion-limited concentration profiles to compute limiting current and concentration overpotential, and solving numerical examples to identify rate-limiting regimes.