This review paper examines old and new solvents, additives and technologies for the electrochemical deposition of aluminum (Al), which has properties of low density, high heat conductivity and electron conductivity, and high corrosion resistance. The advantages and disadvantages of each material and technology especially with respect to their application in Al deposition baths are summarized. In addition, the application of Al deposition in the areas of nanotechnology and energy conversion is also reviewed.