Thomas Edison's car battery is back, and it's better than ever

In 1901, Thomas Edison developed the recharcheable nickel-iron battery, a technology he hoped to see implemented in electric cars. But a slow rate of energy output and slower charging time saw it superseded by lead-acid and lithium-ion batteries in standard and electric cars alike. » 6/28/12 9:10am 6/28/12 9:10am