Figure 2
From: High capacity and stable all-solid-state Li ion battery using SnO2-embedded nanoporous carbon

Cross-sectional morphology of SnO2/C140[62]-electrode layer and SE layer in disassembled ASS half-cell. (a) SEM image of the interface of these layers. (b) SEM image of the electrode layer part in a; the darker areas with smooth surface correspond to particulate and/or stretched SE. Rough and porous surface areas are of SnO2/C140[62] domains. The dotted yellow circle areas indicate representative SE-covered SnO2/C140[62] domains. (c) Enlarged SEM image of the interface between SE and SnO2/C140[62] large domain. (d,e) EDX elementary mapping of sulfur (d) and tin (e) in c. Here EDX data were taken on the large domain to avoid the additional signals behind domains.