Fig. 2: The thermodynamic stability of 3881 calculated NASICONs.
From: Synthetic accessibility and stability rules of NASICONs
a Stability map. The color of each block in the lower triangle represents the median Ehull (bottom-left) of NASICONs that contain the metals on the x- and y-axis. The upper triangle shows the fraction of compounds (faccessible) with \({E}_{{{{{{\mathrm{hull}}}}}}}-{S}_{{{{{{\mathrm{ideal}}}}}}}\times 1000K\le 0\). b The distribution of Ehull (top) and faccessible (bottom) as a function of Na content and polyanion composition. Polyanions are represented by their central cation, e.g., Si2P indicates (SiO4)2(PO4). Green (red) indicates good (poor) NASICON stability in a and b.
