The performance of proton exchange membrane fuel cells (PEMFCs), including reaction
activity and durability, requires further improvement before large-scale commercialization …

Electrochemical impedance spectroscopy (EIS) technique is well established in recent years
to study and diagnose proton exchange membrane fuel cells (PEMFC). In this paper, the …

Electrochemical impedance spectroscopy is a powerful technique used in fuel-cell diagnosis
and characterization. A low-frequency inductive behavior may appear in the fuel-cell …

A physics-based impedance model of a proton exchange membrane fuel cell is developed,
incorporating a coupled oxide growth-oxygen reduction reaction kinetic model. The oxide …

Understanding multi-parameter distributions inside the proton exchange membrane fuel cell
is critical for the stack design and operation optimization. In this work, in situ measurement …

The low-frequency inductive features in PEMFC are studied by differential measurements
and numerical simulation. Systematic parameter variations are conducted and the …

Distribution of relaxation times (DRT) is calculated from fifty local impedance spectra of a low–
Pt PEM fuel cell. 48 out of 50 DRT spectra contain three peaks. Evolution of the peak …

Polymer electrolyte membrane fuel cells are devices that produce power by direct
conversion of hydrogen via electrochemical route and are promising for energy applications …

When designing a cell stack and developing an operational strategy for proton exchange
membrane fuel cell, it is critical to characterize the local current, water and heat. To measure …

Abstract Electrochemical Impedance Spectroscopy (EIS) is a well-established technique for
studying Polymer Exchange Membrane Fuel Cells (PEMFC) but data interpretation remains …