XUE Junpeng, XIA Xiaohong, LIU Hongbo
(College of Materials Science and Engineering, Hunan University, Changsha 410082, Hunan, China)
Abstract: A MXene@Sn4P3 composite was synthesized by using a simple hydrothermal method. The composite displays a two-dimensional structure with a homogeneous distribution of Sn4P3 nanoparticles on surface of the MXene, in which MXene serves as a stable conductive framework, while the Sn4P3 contributes a high specific capacity through transformation reaction and alloy reaction. At a current density of 1.0 A·g-1, the capacity retention rate of the material is higher than 90% after 300 cycles. As the current density is at 5.0 A·g-1, the specific capacity of the electrode material can still reach 537 mAh·g-1, thus exhibiting excellent rate performance and cycling stability.
Key words: MXene; Sn4P3; lithium ion battery; anode materials