The need of human beings to use vehicles in transportation was met first by steam trains, then by various automobiles and other vehicles working with internal combustion engines. Today, electric vehicles are increasingly used for transportation. As in all industrial establishments and cities, it has been determined as a goal to cause less damage to the environment and to use vehicles more efficiently in transportation. Due to the increase in the use of fossil fuels and the fact that these resources are facing depletion in the coming years, developed countries have started to search for new ones. The use of electric vehicles, which emerged with these studies, is becoming widespread day by day. In addition to being environmentally friendly compared to internal combustion engines, another advantage of electric vehicles is that they can work in an integrated manner with smart grids. In this study, research is conducted on the current status of electric vehicles, their types, charge levels, advantages, difficulties in development and statistics on electric vehicle use in different countries. In addition, various concepts that emerge with the integrated use of electric vehicles with smart grids is evaluated. The advantages of including smart grids in the electricity grid infrastructure is examined. The working principles of vehicle-to-grid (V2G) systems is evaluated. The concept of “demand-side participation”, which emerges with the use of vehicle-to-grid systems and contributes to the electricity supply- demand balance, is examined.