Preparation of high-performance anthracite-based graphite anode materials and their lithium storage properties

The results demonstrate that the asobtained sample with 5% silicon catalyst (G-2800-5%) exhibits the best overall lithium storage performance. In detail, G-2800-5% display the best graphite structure with graphitization degree of 91.5%.

As anode materials, a high reversible capacity of 369.0 mAh g-1 can be achieved at 0.1 A g-1. Meanwhile, the reversible capacity of 209.0 mAh g-1 can be obtained at the current density of 1 A g-1. It also delivers good cyclic stability with a 92.2% retention after 200 cycles at 0.2 A g-1.