6.7  Lithium-Ion (Li-ion)

• The Li-ion battery has about: (1) 3 times the energy storage capacity of a lead-acid battery. (2) 1.5 times that of a NiMH battery.
  
  
• It is also much lighter than other batteries. A complex cell control system is, however, required to operate a vehicle powered by these batteries.
  
  
• EVs that have used this type of battery include: Nissan Prairie Joy EV, Nissan Altra, Nissan Hypermini, Mitsubishi MiEV, AC Propulsion t-Zero (Gen 2) and Ford E-Ka.