DETROIT (AP) — General Motors and a joint-venture partner plan to build an electric vehicle battery factory in Lansing, Michigan, their third such factory in the U.S. The companies’ plans were revealed in documents posted on the city’s website Friday. They say the plant would cost up to $2.5 billion and employ as many as 1,700 workers. A joint venture between GM and LG Energy Solution called Ultium Cells LLC would build the factory. GM has said it will build four North American plants to make EV battery cells. Locations in Tennessee and Ohio have already been announced.