Carbon-coated BiOBr composite prepared by molten salt method and mechanical ball milling as anode material for lithium-ion batteries

In this paper, carbon-coated BiOBr composite (Bi0Br@C) is obtained through simple molten salt method using Bi(NO3)(3)center dot 5H(2)O and KBr in fused LiNO3 center dot KNO3 eutectic salt combined with ball milling. The as-prepared samples were characterized by X-ray diffraction, Scanning electron microscope and Transmission electron microscope. Compared with pure BiOBr, electrochemical tests showed that the BiOBr@C composite electrode has been significantly enhanced by composite with ketjen black. It delivers a reversible capacity of 422 mAh g(-1) after 100 cycles at 100 mA g(-1). Similarly, the BiOBr@C composite also exhibits excellent rate performance with the reversible capacity of 380 mAh g(-1) at a current density of 400 mA g(-1).

Automated summary

In this paper, carbon-coated BiOBr composite (Bi0Br@C) was successfully obtained through a simple molten salt method. The composite electrode exhibited significantly enhanced electrochemical performance with higher reversible capacity and excellent cycling stability, showing promising applications in energy storage devices.