Battery P2D Modeling

The pseudo-2D (P2D) electrochemical model, also known as the Doyle–Fuller–Newman (DFN) model, simulates the transport of lithium ions and electrons between electrodes of a lithium-ion (Li-ion) battery and the reaction kinetics of the battery. The P2D model represents the behavior of a Li-ion battery using partial differential equations. The model describes how the concentration and electrical potential vary across time and space within the cell. You can use this model to predict battery performance and guide design optimization.

A basic battery P2D model, which you create by using batteryP2DModel, represents physical parameters of a battery. The properties of the model contain parameters of the anode, cathode, separator, electrolyte, initial conditions, cycling step, and so on. The solution, returned in batteryP2DResults, contains concentration of Li-ion and electric potential in solid phase in both the anode and cathode and in liquid electrolyte, average concentration of Li-ion in the solid active material particles in both the anode and cathode, surface concentration, voltage at battery terminals, ionic flux, solution times, and mesh.

Battery P2D modeling uses SI units of measurements. You must specify all parameters for battery P2D modeling in SI units. The modeling workflow uses SI values for all constants, such as the Faraday constant and the gas constant.