Facile synthesis of MnO and nitrogen-doped carbon nanocomposites as anode material for lithium ion battery

Abstract

MnO and nitrogen-doped carbon (N-C) nanocomposites have been successfully synthesized by a facile thermal-decomposing method using the mixture of glycine and manganese acetate as precursor. As anode material for lithium-ion batteries (LIBs), electrochemical results show that the as-prepared MnO/N-C achieves a reversible capacity of 473mAhg−1 after 50 cycles at a current density of 100mAg−1 and the capacities of 631.4, 547.7, 443.1, 294.7, and 161.8mAhg−1 at the current densities of 100, 200, 400, 800, and 1600mAg−1, respectively. The superior cycling and rate performances is attributed to the nanocomposite structure, in which nanosized MnO particles shorten the diffusion path of lithium ions and the N-doped carbon cushions the volume change and improves the electronic conductivity of electrode.