many of the people I've talked to have basically agreed that the centrifuge is a mini reactor for processing nuclear stuff, so the recipe would probably just be to put lithium and some nuclear material (Probably U238) in a centrifuge...
the problem there is that the centrifuge has no pipe connections, and would probably look silly if you tried to add them. (and you'd get the same issue just from recycling fuel cells too)
but yes, this is something already in my notes.