Ah yes, I actually have one in my dashcam too! Oops. As you can see this is an area I don't know much about. I was more thinking along the lines of larger 'ind

Ah yes, I actually have one in my dashcam too! Oops. As you can see this is an area I don't know much about. I was more thinking along the lines of larger 'industrial' scale capacitors, but I'm not sure if there are fundamental barriers physical that can't be overcome to make such devices a sensible route to pursue?