Graphene batteries are quoted to be the "cleanest" ones, altough they don't have the same energy storage density of a Lithium battery. But their cost might still be a good option to eventually replace Lead-acid batteries for their current applications.
Quote:
Originally Posted by guudasitgets
I worked for a battery company. The cost of recycling the Prius and other NMH and Li batteries is much higher and deals with more harmful chemicals the lead acid battery recycling. Lead acid batteries are, for the most part almost all recycled, plates, lead grids, plate tab burns, polypropylene cases, heck even the stainless studs on golf cart batteries. The first two require electrolysis to un-clad various metals used. If you want recycling efficiency you cant beat lead acid as compared to the NiCad, NMH or Li group. This was a concern when I found out Toyota was doing their own recycling program and every one was ok with it because it was taken care of by the factory. But at what cost to the environment.
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That's why I still consider an old Diesel beater over a hybrid
