• 文献标题:   N-doped graphene encapsulated MoS2 nanosphere composite as a high-performance anode for lithium-ion batteries
  • 文献类型:   Article
  • 作  者:   ZHANG YT, ZHANG ZR, ZHU YY, ZHANG YL, YANG MN, LI SY, SUO K, LI KK
  • 作者关键词:   lib, anode, mos2, graphene, ndoped
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:  
  • 被引频次:   3
  • DOI:   10.1088/1361-6528/ac5a84
  • 出版年:   2022

▎ 摘  要

MoS2 is widely used in lithium-ion batteries (LIBs) due to its high capacity (670 mAh g(-1)) and unique two-dimensional structure. However, the further application was limited of MoS2 as anode materials suffer from its volume expansion and low conductivity. In this work, N-doped graphene encapsulated MoS2 nanosphere composite (MoS2@NG) were prepared and its unique sandwich structure containing abundant mesopores and defects can efficiently enhance reaction kinetics. The MoS2@NG electrode shows a reversible capacity of 975.9 mAh g(-1) at 0.1 A g(-1) after 100 cycles, and a reversible capacity of 325.2 mAh g(-1) is still maintained after 300 cycles at 5 A g(-1). In addition, the MoS2@NG electrode exhibites an excellent rate performance benefiting from the electrochemical properties dominated by capacitive behavior. This suggests that MoS2@NG composite can be used as potential anode materials for LIBs