This chapter reviews the application of electrochemical impedance spectroscopy (EIS) to fuel cells (FCs) and redox flow batteries (RFBs). The work is focused specifically on diagnostic aspects and large-scale systems. The basics of EIS are briefly summarized, alongside their theoretical premises, good practices and typical laboratory equipment. The online applicability of EIS is also discussed. The interpretation of the EIS response is presented with particular reference to the model-based approaches. The chapter continues presenting the EIS application to proton exchange membrane FCs, discussing the specific phenomena affecting the impedance response. Online and on-board applications of EIS to stacks and large-scale systems are also analyzed. The EIS application to all-vanadium RFBs is also discussed, with particular attention to large-scale systems.
EIS Diagnostics for Fuel Cells/VRFBs
Zamboni, Walter
2022-01-01
Abstract
This chapter reviews the application of electrochemical impedance spectroscopy (EIS) to fuel cells (FCs) and redox flow batteries (RFBs). The work is focused specifically on diagnostic aspects and large-scale systems. The basics of EIS are briefly summarized, alongside their theoretical premises, good practices and typical laboratory equipment. The online applicability of EIS is also discussed. The interpretation of the EIS response is presented with particular reference to the model-based approaches. The chapter continues presenting the EIS application to proton exchange membrane FCs, discussing the specific phenomena affecting the impedance response. Online and on-board applications of EIS to stacks and large-scale systems are also analyzed. The EIS application to all-vanadium RFBs is also discussed, with particular attention to large-scale systems.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
