▎ 摘　　要

LiVPO4F has been suggested as an excellent electrode for Li-ion battery due to its various advantages. However, the LiVPO4F-based materials reported so far showed poor rate property and required further improvement. Herein, we describe a simple method to synthesize the boron-doped graphene-decorated LiVPO4F@C (BG-LiVPO4F@C) composite for the first time. This designed nanostructure can provide short diffusion distance for Li+ and offer enhanced electronic conductivity for the transport of electron, leading to superior Li+ storage performance. The obtained electrode delivers high capacity of 125.2 mAh g(-1) at 10C. Besides, it exhibits excellent cyclic stability with a high capacity retention of about 92.5% after 300 cycles at 20C. Thus, the as synthesized BG-LiVPO4F@C cathode is a promising candidate for Li-ion battery.