Yes, certainly. It is important about the battery for electric vehicles to have a higher energy density and a larger capacity. The battery is also requires sufficient power to steadily drive the motor and allows for secure temperature-environmental responsiveness. The major bottleneck in the evolution of electric vehicles was until recently there has been no battery which can meet such requirements.
Actually, the lead-battery is tough, but lacking in an energy density and power to drive the motor, resulting in poor driving or shorter cruising range, and longer charging time, which has been the major problems for practical use of electric vehicles.
First, the problem of an insufficient electric energy has been solved by the advent of the “Lithium-ion battery” which has a higher energy density. The lithium-ion battery has as triple energy density as that of the lead-battery, so the electric energy to be stored in the battery requires only one-third amount of the lead-battery to provide the same electric energy. In addition to that, the lithium-ion battery is characteristic of giving less damage to the battery even if it is replenished halfway or quick-charged, which is suitable for use in electric vehicles. Therefore, I'm sure to say that there would have been no birth of the i-MiEV if there had been no advent of the lithium-ion battery.
