Results of experimental investigations of nanodimensional titanium (Ti), aluminum (Al), nickel (Ni), iron (Fe), zinc (Zn), and copper (Cu) powder interaction in high-energy condensed systems (HECSs) comprising a tetrazole polymer solution in nitroethers are presented. The main structural changes in such HECSs during their production and implementation are demonstrated. It is demonstrated that structural transformations are due to electrochemical reactions in the composites. The probability of forming intermetallic compounds in the high-energy systems comprising nanoaluminum and others nanometals is discussed together with the influence of intermetallides on the combustion and detonation.