Extended Data Fig. 2: Architecture and wetting capability of a fibre electrode with aligned and networked channels.
From: High-performance fibre battery with polymer gel electrolyte
a, SEM image of a fibre electrode with a rotating architecture. b,c, Magnified SEM images of the aligned fibres and the channel between them, respectively. d,e, Images reconstructed from X-ray computed tomography data of the networked channels (blue) among particles (grey), respectively. The particles were highly interconnected with each other, forming channels among them. The small channels showed sizes of several micrometres, while the large channels showed sizes of tens of micrometres. f, Channel size distribution tested by the mercury intrusion method. g–j, Fluorescence microscopy images showing the monomer solution infiltrating along the aligned channels. k, Monomer solution wetting into the networked channels of an electrode. Scale bars, 1 mm (a); 300 μm (b); 100 μm (c); 20 μm (d,e); and 200 μm (g–j).
