I have been hearing about the possibility of a graphene super capacitor for quite some time now, but it still seems they are not readily available. Is there anyway for me to get my hands on one? Would it be possible for me to buy/make one practical enough to replace a AA battery? What size would a graphene super capacitor like this be? I have seen videos of people making graphene caps with a lightscribe drive, but I'm not sure that would be plausible for me to make a battery. Any information on this would be appreciated. Thanks.