Work

Heat generation of H2 starved cells in automotive PEMFC stacks

Year: 2025

Type: article

Abstract: Fuel gross starvation is an irregular operation state, which occurs when fuel cells are operated in multi-cell stacks with insufficient supply of hydrogen. The cell voltage polarity is reversed to negative values in this case, so the fuel cell acts like an electrical resistance. Two characteristic experiments of fuel starvation are compared. Each experiment intentionally provoked the error state of fuel starvation of a single cell in a 20-cell stack. One scenario used a metal containing bipolar plate (BP), and the experiment ended quickly in a rapid decrease of cell voltage to -10 V, causing catastrophic cell failure. The other experiment used carbon composite BPs, whereas no such destructive behavior could be observed.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.15772371

Authors: Nissen, Jens, Hölzle, Markus, Schwämmlein, Jan Nicolas

Institutions: CellCentric (United Kingdom), Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg

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: green

OpenAlex ID: W6912030159

FWCI:

Cites:

Cited by:

Related to: