Spain and the Chinese green energy company Envision Group have entered a partnership agreement to work together on four projects, including a battery plant for electric vehicles, with a combined investment of 3.8 billion euros ($3.9 billion), some of which will be financed by assistance from the European Union. The projects would be created in conjunction with the Spanish renewable energy business Acciona Energia, according to Jose Dominguez, the CEO of Envision Spain, however the Spanish government did not specify what its role would be. The battery “giga-factory” in Navalmoral de la Mata in the central-western region of Extremadura, will…