We develop a facile strategy to construct massive MnO quantum dots of average size 3 nm embedded in quasispherical N-doped carbon aggregates as anodes for Li ion batteries (LIBs). The unique nanostructure supplies an elastic conductive carbon frame to alleviate volume expansion, ensures almost the entire surface of each MnO particle participate in electrochemical reactions, shortens ion diffusion length, and enhances electronic conductivity. Moreover, ex-situ TEM and HRTEM findings prove excellent reversibility and stability. Therefore, nanocomposite anode shows outstanding characteristics, in...
