in the invention , a cathode material for secondary lithium batteries was disclosed . it is a material with composite structures formed with more than two different components selected from a general formula n . the composite structures are formed between crystal clusters within primary particles and / or between primary particles . methods for making such a cathode material were also disclosed in the invention . the cathode material has composite structures formed by compositing different components at nanometer level , which can integrate benefits of different components , resulting in better overall comprehensive properties .