Brief introduction of project results

Carbon materials have been widely used in lithium-ion batteries as negative electrode materials because of their abundant raw materials, low cost and simple preparation. However, problems such as low specific capacity of carbon materials, low first coulomb efficiency, and poor rate/cycle performance still need to be solved. Based on this, we developed a new type of hydrogen-rich carbon nanomaterial (conjugated carbon material containing a large amount of end-sealed hydrogen at the edge of the carbon layer), which has simple and controllable preparation process, no doping steps, low energy consumption, and low cost. It is green and safe, and easy for macro preparation.

Performance indicators

Various characterization methods have confirmed that the prepared materials are hydrogen-rich conjugated carbon nanomaterials with a C/H atom ratio of 2:1. The electrochemical lithium storage performance test shows that the hydrogen-rich conjugated carbon nanofibers have high reversible specific capacity (1144.2 mAh g− 1,0.1 A g−1), excellent magnification performance (471.8 mAh g−1, 2.5 A g−1) and cycle stability (91%, 5000 cycles).

When used as a negative electrode material in Li-ion capacitors (LIC), the operating voltage is 4.5V, the maximum power density is 28.4 kW kg−1, the maximum energy density is 151.2 Wh kg−1, and it has excellent magnification and cycle performance.

Scope of application and market prospects

In the field of energy storage materials, especially lithium (sodium) ion batteries and lithium (sodium) ion capacitors negative electrode materials.

Investment estimates

Two million

Means of cooperation

1) Technology transfer; 2) Technology investment