A Systematic Benchmark of Physics-Informed Neural NetworkStrategies for Stiff Ion Transport in Lithium Symmetric Cells
The Poisson–Nernst–Planck (PNP) system governs ion transport in lithium-ion battery electrolytes and presents a canonical stiff coupled PDE challenge: extreme coefficient ratios, sharp electric double-layer boundary layers, and nonlinear coupling between the Poisson and Nernst–Planck equations. Physics-informed neura...