Nowadays, transitional metal sulfide (TMS) materials have attracted intensive attentions when used as electrode materials for LIBs, because TMS materials as anode materials usually own excellent properties, including higher specific capacities and also better physical properties.[1] Among various metal sulfide, MnS possesses a theoretical Li-storage capacity as high as 616 mAhg~(-1).[2] However, MnS anode materials also suffer from some drawbacks such as poor electron transfer rate, low Li-ion diffusion kinetics as well as large volume change with the lithiation and delithiation. In order to promote its practical application, many efforts have been devoted to raise the electrochemical performance of MnS.[3] And design of carbon-encapsulated structure is one of the most effective strategies.[4] Coating carbon shells can not only effectively increase the electrode conductivity, but also efficiently restrain the volume variations of MnS by the confined nanospace, leading to enhanced rate-performance and cycle life of MnS.[5] However, it is still a big challenge to develop more facile method to design the MnS@C anode materials with favorable microstructures for lithium-ion diffusions.
展开▼