期刊论文

Wang, Haiyan

英文

Ceramics International

0272-8842

2017

43

15

11967-11972

10.1016/j.ceramint.2017.06.046

The spirit of electrochemical presodiation to elevate the lithium storage performance of Mo-based anode materials was based on their structures. As shown in Fig. 1, 2H-MoS2 with space group of hexagonal P63/mmc, has a layered structure consisting of S-Mo-S sandwich slabs stacked in (002) plane, with Mo occupied the 2c sites and S occupied the 4f sites [24]. Similarly, MoO3 with space group of orthorhombic Pbnm, has a layered structure with Mo occupied 4c sites and O occupied 4c sites [25]. With

本校为第一机构

Stabilizing the layer structures of Mo-based anode materials is still a challenge for Li ion batteries. Herein, we proposed an electrochemical presodiation strategy for MoS2and MoO3to improve their cycling stability. It is interesting to note that the cycling stability of as-treated MoS2and MoO3was significantly improved. Although the reversible discharge capacity was slightly decreased, the capacity of the pretreated MoS2at 300 mA g−1was retained at 345 mA h g−1after 100 cycles while that of the pristine one decreased to 151 mA h g−1. ...