Finally, we comment on the characteristics of the electrodeposited layers. Similar to other authors we find a rather unique stripping behavior where the columnar (shell) structure remains fully intact. This implies that stripping occurs along the length of the columns, which amounts to a greatly enhanced surface area compared to the geometrical footprint (SI-9, after stripping 3.8 C/cm 2 from a 10 µm layer (~50%) at a current density of ~4.5 mA/cm 2 ).