FIGS. 9B and 9C provides a schematic illustrations of sections of energy storage devices 950 and 980. Here, electrodes 955, 960, 985, and 990 and electrolytes 965 and 995 are provided in interdigitated configurations, such that the devices exhibit large surface area. Such a configuration may provide an effective multilayer-type structure. It will be appreciated that combinations of structures corresponding to FIG. 9A and FIG. 9B may be used, such as illustrated in FIG. 9C, where an energy storage device comprises stacks of interdigitated electrode elements, separated by an electrolyte. When provided in such a stacked configuration, interdigitated electrode elements may be interdigitated on both sides (similar to shown in FIG. 9B), or interdigitated on one side. When provided in stacked interdigitated configurations, interdigitations extending opposite directions on an electrode may be lined up (top stack configuration in FIG. 9C), or displaced from one another (bottom stack configuration in FIG. 9C), or combinations may be used.
