Future batteries, coming soon: Charge in seconds, last months and power over the air   SVOLT unveils cobalt free batteries for EVs While the emission-reducing properties of electric vehicles are widely accepted, there's still controversy around the batteries, particularly the use of metals like cobalt. SVOLT, based in Changzhou, China, has announced that it has manufactured cobalt-free batteries designed for the EV market. Aside from reducing the rare earth metals, the company is cla