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Experimental model for a surface discharge of a cell with NaA or 13X (half way through the cycle of discharge period).
Microscope and scanning electron microscope (SEM) images of the distribution of zeolite crystals (dark dots) on an electrode of a unit cell (dashed lines indicate the boundary of ITO electrode): (a) 13X/0.1, (b) 13X/0.4, (c) SEM image of a 13X crystal, (d) NaA /0.1, (e) NaA /0.4, and (f) SEM image of an NaA crystal.
Aging characteristics of test samples operated with a square pulse of 40 kHz and a 20% duty ratio at 100 Torr: (a) Aging time vs initial firing voltages, (b) calculated static memory margin at the aging time of 15, 30, and 60 min, respectively, for samples showing relatively stable operational voltages.
Displacement and discharge currents plotted to the discharge time after 60 min of aging: (a) as measured at 100 Torr and (b) for currents from reference cells vs gas pressure.
Plots of the displacement and discharge currents of (a) NaA/0.1, (b) 13X/0.1, (c)NaA/0.4, and (d) 13X/0.4NaA/0.1 dependent on gas pressure.
Trend of memory margin of test samples in relation to gas pressure after 60 min of electrical aging.
Ideal figure for ion and Xe diffusion into and out of channels of NaA or 13X on surface of discharge cell.
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