Work

Evolution of Characteristic Parameters in Fuel Cell Dynamic Response Under Durability Testing

Year: 2025

Type: article

Abstract: The evolution of two key dynamic response parameters—undershoot voltage and stabilization time—was investigated throughout a 1000-h durability test on four distinct PEMFCs. Results demonstrate that cells with superior mass transport exhibited higher undershoot voltages, an effect amplified at higher current densities due to a more pronounced gas supply-demand imbalance. Notably, the undershoot voltage decreased during the initial cell activation phase. Conversely, stabilization time showed no clear correlation with load magnitude but increased systematically with performance degradation. These findings reveal a strong connection between dynamic response characteristics and performance decay, providing meaningful insights for the design, application, and health assessment of high-performance fuel cells.

Source: World Electric Vehicle Journal

DOI: 10.3390/wevj16090479

Authors: Zhexuan Qi, Xiangyang Chen, Ruidi Wang, Dong Hao, Wenlong Pan, Yongping Hou

Institutions: Tongji University, China Automotive Technology and Research Center

Language: English

Topic: Fuel Cells and Related Materials

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $1,689