Fabrication of Intricate Porous Structures in Coal Tar Pitch Based Carbons Using SiO₂ and Na₂CO₃ as Dual Templates (Supporting Information)

<div>With unfolding the large scale energy storage, expanding the electrodes with high Li⁺ storage capacity and cost-effectiveness features is becoming a significantly hot research topic. According to the double-template method, carbon anode materials having high storage capacity were successfully prepared by using the coal tar pitches, Na₂CO₃ and SiO₂. It is intriguingly observed that the two templates manifest the different roles constructing the structures of carbon materials. Meanwhile, the fabricated CTPC-1-2 material possesses the three-dimensional porous, and its pore size distributions are in a range (3.94–16.14 nm). After cycling 100 times, the CTPC-1-2 shows the Li⁺ storage capacity of 611.3 mAh g⁻¹ at a current density of 0.1 A g⁻¹. The Li⁺ storage capacity accomplishes 250.6 mAh g⁻¹ at a large current density of 1 A g⁻¹, after cycling 500 times. These results indicatethat only using the coal tar pitches is able to fabricate the carbon materials with the high Li⁺ storage capacity, which provides a new idea for enlarging the application of coal tar pitches in the domains of the fabrications of anode materials.</div>