Table 1 Summary of the structures and compositions of the air cathodes under study.
H 23 | MGL 190 | Toray 090 | BC 39 | |
|---|---|---|---|---|
Microporous layer (MPL) | None | None | One side | One side |
PTFE content (as reported by manufacturers) (wt %) | 0% | 5% | 25% | 5% |
Thickness (mm) | 0.20 ± 0.01 | 0.19 ± 0.02 | 0.28 ± 0.01 | 0.33 ± 0.01 |
Thickness of MPL (mm) | None | None | 0.08 ± 0.01 | 0.10 ± 0.01 |
Mass (of a 12 mm diameter circle) (mg) | 9.0 ± 0.1 | 9.3 ± 0.1 | 16.0 ± 0.1 | 9.8 ± 0.1 |
Specific surface area (m2 g−1) | Below 1 | 5.6 | 11.3 | 22.5 |
