High performance positive and negative electrode materials can be highly engineered particles exhibiting particle coatings, functional nanostructures, core/shell designs, etc. Some engineered particles are often produced by complex methods (e.g. ALD coated positive electrode materials, SiO made by vacuum processing). However, less expensive and less complex methods are continually being developed to make complex engineered particles that are often superior to those made by more complex methods. In this presentation it will be shown how highly engineered positive and negative electrode particles can be practically made using scalable processes, such as mechanofusion and reactive gas milling. In some cases these simple processes can enable the practical synthesis of new material microstructures having improved performance compared to materials made by more complex methods.