6.4  Nickel-Cadmium (NiCad)

• The main advantage of the NiCad battery is that it has a high energy density and consequently it can be smaller than most other batteries of the same power.
  
  
• It also requires little maintenance and has a long life. Cadmium is, however, very toxic.
  
  
• EVs that have used this type of battery include: Citroen Saxo Electrique, Renault Clio RT, Peugeot 106 electric, Ford Th!nk, PIVCO City Bee and Zytek Lotus Elise.