Comparison of theoretical properties of the Mg–S system with Li–S (metal anode) and Li–S (graphite anode), based on materials values
| . | Mg/S . | Li/S . |
|---|---|---|
| Theor. grav. cap. anode [mAh g−1] | 2205 | 3861 (LiC6: 372) |
| Theor. vol. cap. anode [mAh cm−3] | 3832 | 2062 (LiC6: 833) |
| Theor. energy density [Wh L−1] | 3200 | 2800 (LiC6: 1100) |
| volumetric change S → MxS (molar volume S ∼16 cm3 mol−1) | molar volume MgS: 19.9 → 24% expansion | molar volume Li2S: 27.7 → 72% expansion |
| . | Mg/S . | Li/S . |
|---|---|---|
| Theor. grav. cap. anode [mAh g−1] | 2205 | 3861 (LiC6: 372) |
| Theor. vol. cap. anode [mAh cm−3] | 3832 | 2062 (LiC6: 833) |
| Theor. energy density [Wh L−1] | 3200 | 2800 (LiC6: 1100) |
| volumetric change S → MxS (molar volume S ∼16 cm3 mol−1) | molar volume MgS: 19.9 → 24% expansion | molar volume Li2S: 27.7 → 72% expansion |