Fig. 6: Experimental study on safety precautions and deflagration warning indicators in a stack. | Nature Communications

Fig. 6: Experimental study on safety precautions and deflagration warning indicators in a stack.

From: Catastrophic localized deflagration formation mechanisms and safety precautions in proton exchange membrane water electrolyzer

Fig. 6: Experimental study on safety precautions and deflagration warning indicators in a stack.The alternative text for this image may have been generated using AI.

a Bridge-structured internal channel design between the main manifold and flow field in BPPs. b The V-t, i-t curves under ξ = 2 with Nafion NR212 membrane. c H2 in O2 and O3 in O2 concentration during water-starvation test (insert: O3 concentration in anode outlet water). d F- release rates during normal37 and water-starvation operations. e Long-term stack voltage response of a 5 kW PEM water electrolysis stack (31-cells, 98 cm2) under 3.0 MPa differential pressure with fluctuating power input. f Individual cell voltage profiles in this stack during the final 30 h operation, showing normal operation of 30 cells (black lines) and sudden voltage increase in one abnormal cell (red line).

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