Facile synthesis of carbon embedded dual phase MnO/MnS nanoparticles composite for superior lithium storage performance

Abstract

Herein, carbon embedded dual phase MnO/MnS nanoparticles (MnO/MnS-C) composite was synthesized through a facile one-step solvethermal method and subsequent heat treatment. Applied to lithium ion batteries anode, the MnO/MnS-C electrode exhibits a high reversible specific capacity (1183 mAh/g at 0.2 A/g after 240 cycles) and an excellent high-rate cycling stability (783 mAh/g at 0.5 A/g after 300 cycles). The superior lithium storage performance of the MnO/MnS-C is mainly ascribed to the presence of carbon matrix, which can not only stabilize the MnS/MnO nanoparticles against self-agglomeration and buffer the volume expansion of the MnS/MnO nanoparticles during lithiation/delithiation, but also enhances the conductivity of whole structure.