| abstract |
The invention provides a method for preparing graphene, which comprises at least the following steps. First, a first electrode and a second electrode are placed in an electrolyte without contact, and the first electrode is a graphite composite material, and the electrolyte contains at least one ion solution. Then, a potential difference is generated between the first electrode and the second electrode, and the ion solution can enter each layer of the first electrode by a potential difference to generate a plurality of graphenes. |