Batteries are out – well not quite yet – but super capacitors are coming.
The key attribute of LIG is how comparatively easy it is to produce as opposed to graphene made via chemical vapor deposition. For LIG, all that is needed is a commercial polyimide plastic sheet and a computer-controlled laser. The Rice researchers discovered that the laser would burn everything on the polyimide except the carbon from the top layer. What remains is a form of graphene.
Phi Beta Iota: Energy can be addressed by design (conservation, ecologies that convert waste from one process to energy for another), by selecting renewable forms of energy; by advancing storage options, and by substitution (e.g. infrared cooling). The only obstacles to achieving a prosperous world at peace are a recalcitrant elite that has learned only to profit from war and poverty, and an uneducated apathetic public that has been trained over centuries to be servile.