Wang Wanqing, Xu Le, Zhang Peilin, Zhou Jiao-Jiao, Wang Weiwei, Xu Xicheng, Yang Yang, Ji Wuxing, Ding Hualong, Chen Luyang
Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences, Shanghai 200050, China.
J Colloid Interface Sci. 2022 Dec;627:804-814. doi: 10.1016/j.jcis.2022.07.066. Epub 2022 Jul 21.
The rational design of ultrathin and few-layered structures for three-dimensional MoS nanospheres is crucial for achieving attractive lithium-ion batteries (LIBs). Herein, hollow nanospheres constructed by ultrafine and few-layered MoS homogeneously incorporated in N-doped amorphous carbon (HUF-MoS/NC) have been successfully synthesized as high-performance anode for LIBs. Using Mo-glycerol spheres as templates and dopamine hydrochloride as coordination ligands, hollow Mo-glycerol-polydopamine precursors are formed with Mo-containing groups which are surrounded by organic carbon species. Consequently, the MoS is confined to the nanoscale and grows partially amorphous fragments while being uniformly embedded in NC. This unique architecture can not only hinder the substantial restacking between MoS interlayers, offering more active sites, but also vastly enhance the electrical conductivity and relieve the mechanical stress ascribed to volume changes. As a result, the HUF-MoS/NC composite anode exhibits excellent cyclic stability (980mAhg after 300 cycles at 0.2Ag) and superior rate performance (498mAhg at 5.0Ag) for LIBs.
