Method for making lithium-ion battery electrode material

A method for making an electrode material of lithium-ion battery, comprising:

• providing a lithium source solution and a plurality of titanium source particles;
• mixing the lithium source solution and the plurality of titanium source particles, wherein a molar ratio of lithium element to titanium element is in a range from about 4:5 to 9:10, thereby forming a sol;
• spray drying the sol to form a plurality of precursor particles;
• heating the plurality of precursor particles, thereby forming a plurality of secondary lithium titanate particles;
• immersing a carbon source compound into a solvent to form a carbon source solution, and uniformly dispersing the plurality of the secondary lithium titanate particles into the carbon source solution, thereby forming a liquid mixture;
• and
• vaporizing the solvent of the liquid mixture, and pyrolyzing the carbon source compound.