One of the most challenging EV-centric problems to solve is the battery. And what a problem to solve—after all, the big hunk of electrons is what powers the motors to make the wheels go 'round. It's more than just hooking up some cells together, though. The battery has to pack enough juice to make long trips for the vehicle to entice consumers, and it has to be reliable enough to withstand hundreds of thousands of miles (and repeated discharges and abuse from pedal-to-the-metal driving).
