HIGH ENERGY BATTERIES AND METHODS OF MAKING THE SAME

Batteries that include an electrolyte, having an electrolytic solvent, and a cathode, the cathode including a first cathode active material in contact with a second cathode active material, and where a ratio of the solubility of the first cathode active material in the electrolytic solvent to the solubility of the second cathode active material in the electrolytic solvent is less than 0.5. The batteries can be economically packed and can provide high energy density.