Three-dimensional X-ray microtomographs of Zn30 and Zn20 electrode formulations.
 Engineering stress and strain of Zn20 and Zn30 electrodes under compression. The electrodes display energy-absorbing capabilities with defined plateau stresses comparable to commercial impact-absorbing aluminum foams.
 Performance data of Zn30 electrodes in prototype Ag – Zn cells.
 Scanning electron micrographs showing the interconnected pore−solid architecture of a Zn20 sponge at (a) low and (b) high magnification. Higher density Zn30 sponge micrographs at (c) low and (d) high magnification.
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