Environmental impact of hybrid car battery
Though substantially less toxic than conventional car batteries, nickel-based batteries are known carcinogens, and can lead to a wide array of other health problems (little testing has been done to show the effects of nickel on people but other possible side effects may include: "xencephaly, everted viscera, short and twisted neck, short and twisted limbs, microphthalmia, hemorrhage, and reduced body size"
I don't think I would rather
I don't think I would rather have nickel-based batteries because of the possible side effects alone. What are possible side effects for our conventional car batteries.