So your gas car does not have a battery?
I realize an electric car will have a larger battery. But right now, the total amount of batteries in gas cars is far greater. And if battery production is so terrible on the environment, where are the enviromentalist who say: get rid of cell phones, tablets and laptops?
Maybe we should start running cell phones on gasoline to save the environment? Seems like a joke because of all the noise, stink and pollution. But one day when we have a fully electric economy we will look back at a time when we polluted our own streets with fumes, noise and the stink of gasoline and wonder what we were ever thinking. Of course there are problems to overcome, but moving the pollution from the individuals and isolating it to concentrated collected industrial complexes will allow us to better control the amount of pollution we create and control its release into the environment.
I am not even begging to get into all the other waste built into a gasoline vehicle. The gasoline engine requires oil, antifreeze and transmission fluid... much of which can be eliminated or reduced in simple electric motors. A gasoline car is a production hog... its main purpose is to get you into recurring expenses of repair and refueling it. The car companies are largely dependant on this cycle of constant cash flow. An electric vehicle can be made where the electric motor resides in the wheel wells. In this case, the car largely becomes a simply suspension chasy that carries your batteries and some wires to connect your controls to the motors and batteries. There is far less waste in the production of such a car.