“…Compared with the reported C/MOs nanocomposites, the obtained NC@MnO HHSs possess two main characteristics: (1) As for the MnO nanocomponent in the composite, there are some advantages, such as low price, environmental benignity and natural abundance, favorable to the actual application; (2) In most of the previous reports, MnO nanoparticles have been encapsulated in the carbon matrix. [10,12,28] However, in our study, MnO nanoparticles attach to the NCHSs. In the novel nanocomposites, on the one hand, NCHSs with high conductivity can validly increase the conductivity and prevent the aggregation of MnO nanoparticles, [22,23] resulting in the high utilization rate of MnO and the prominent cyclic stability of NC@MnO HHSs; on the other hand, MnO nanoparticles can well disperse on NCHSs, which can be oxidized and gradually transferred to high-oxide-state manganese oxide (such as MnO 2 ) with higher theoretical capacity, responsible for the gradually increasing capacity and highly reversible lithium storage.…”