Fig. 5

(A) and (B) Al anode voltage measured in a three-electrode system for different anode structures; C) Corrosion current density determined from anode mass loss measurements for different anode structures; D) Calculated energy performance for different anode structures; E) 2 A constant current discharge from mAAB pouch cells with anode structure of 2-layer, 4-layer, 6-layer and 8-layer; F) The measured discharge energy density above the 800 \(\:\frac{\text{W}}{\text{k}{\text{g}}_{\text{b}\text{a}\text{t}\text{t}\text{e}\text{r}\text{y}}}\) power threshold compared with the calculated mAAB energy density. Note that the former is on a per-cell basis, while the latter is on a per-anode-mass basis; however, the functional forms are similar and lead to the same optimal number of anode layers.