A structure with a higher surface area than the area occupied by the structure has a number of pillars (2), the pillars being hollow having an opening (6) extending into the pillar. An intermediate layer is provided on the surface of the pillar and an electrode fills the spaces between the pillars (2). The structure has an enhanced structural stability reducing potential damage especially during manufacture. The structure may be used for capacitors or batteries, for example.
|Publication status||Published - 17 Dec 2009|