In a realistic electrode, the single-particle model falls short at accurately capturing the cell level transport limitations. To represent these interactions more realistically, electrodescale models are employed, which more accurately capture the interplay between electrolyte transport and kinetics within the electrode. Since our primary focus is capturing the kinetics of the cell with a specific emphasis on degradation, we aim to incorporate the effects of the interacting cathode and anode. In the context of a full cell, when a voltage hold is applied, only the voltage difference ϕ applied = ϕ s,c -ϕ s,a between the cathode and the anode is controlled. (In this full cell, we use the subscript a to refer to the anode, and the subscript c to refer to the cathode.) From the full cell constraint on the system, the total amount of cathode reaction must equal the anode reaction. The solid electric potentials, ϕ s,c and ϕ s,a , can be determined through a porous electrode theory model using current or voltage constraints.