Existing car electric vehicle battery power to generate electricity are based, the use of the vehicle about
a decade, which decade each vehicle to be replaced two to three set of batteries, these batteries have
disadvantages, such as lead-acid batteries Charging speed is slow, life expectancy is shorter. And once
these batteries have been abandoned and pollution of the environment is also high. These batteries are
lead acid substances and heavy metals can cause the disclosure of the nature of soil and water pollution,
poor management, if the recycling future recipe for disaster. And from the energy point of view, mainly
because of the coal-fired power generation, electric vehicles as a secondary energy, power, and its carbon
dioxide emissions generated by the whole process, not less than burning gasoline.