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PEMFC Durability Test under Specific Dynamic Current Solicitation, Linked to a Vehicle Road Cycle
Author(s) -
Harel F.,
François X.,
Candusso D.,
Péra M.C.,
Hissel D.,
Kauffmann J.M.
Publication year - 2007
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.200500255
Subject(s) - durability , stack (abstract data type) , automotive engineering , proton exchange membrane fuel cell , current (fluid) , driving cycle , reliability (semiconductor) , computer science , polarization (electrochemistry) , fuel cells , nuclear engineering , reliability engineering , environmental science , electric vehicle , power (physics) , electrical engineering , engineering , physics , chemistry , quantum mechanics , database , chemical engineering , programming language
The Laboratory of Electrical Engineering and Systems (L2ES) is concerned with fuel cell system durability and reliability. Since the lab is predominantly involved in the field of transport applications, one of the objectives is to study PEMFC ageing in different specific environments linked to electric vehicle operation. The first phase of the durability program was devoted to the reference test of a 100 W three cell stack, operated in a stationary regime at roughly nominal conditions for 1,000 hours. The second phase, on which this paper is focused, is dedicated to the durability test of another 100 W stack placed under dynamical current constraints. The current cycle load applied is first computed from a standardized transportation mission profile (time vs. speed of vehicle) and then adapted to the power of the fuel cell tested. The gas supply strategy is defined and the work presented in this paper shows the importance of the gas flow management in providing highly dynamical current profiles. The experimental methodology is based on polarization curves as well as on electrochemical impedance spectroscopy measurements performed regularly throughout the ageing. The experimental results showing the degradation of the fuel cell performances are presented and analyzed.