近年来，随着经济和科技迅速发展，人们对储能器件的要求越来越高。然而，常

In recent years, with the rapid development of economy and technology, people have higher and higher requirements for energy storage devices. However, the commonly used anode materials of energy storage devices cannot meet the requirements of energy density, cycle life, and power density, so it is urgent to look for excellent electrochemical anode materials. Graphene-based porous material is an excellent electrochemical negative electrode material, its specific surface area is higher than that of graphene, and has a three-dimensional network structure interpenetrating, which can provide a multi-dimensional electron transmission path and increase the contact area with the electrolyte, thereby Achieve fast transmission of electrons and ions at high magnification. This paper mainly describes the development, preparation and application of graphene-based porous materials. The graphene-based porous material with high specific surface area and rich porous network structure was successfully prepared by chemical activation method. The material was characterized by electron scanning microscope, X-ray diffraction and other methods. It was applied to the negative electrode material of supercapacitor and The energy storage properties are studied.

In recent years, with the rapid development of economy and science and technology, people's demand for energy storage devices is getting higher and higher. However, the anode material solely used in energy storage devices cannot meet the requirements of energy density, cycle life and power density, so it is urgent to find excellent electrochemical negative materials. Graphene-based porous material is an excellent electrochemical negative material, which has a surface area higher than graphene, and has a three-dimensional network structure, which can provide a multi-dimensional transmission channel of electrons, while increasing the contact area with electrolytes, so as to achieve rapid transmission of electrons and ions at high multiples. This paper mainly expounds the development, preparation and application of graphene-based porous materials. Graphene-based porous materialwithized with high surface area and rich porous network structure was successfully prepared by chemical activation, and the material was characterized by electron scanning microscope, X-ray diffraction and other methods, applied to the negative material of supercapacitors and the nature of its energy storage was studied.

In recent years, with the rapid development of economy and technology, people have higher and higher requirements for energy storage devices. However, the anode materials of common energy storage devices can not meet the requirements of energy density, cycle life and power density, so it is urgent to find excellent electrochemical anode materials. Graphene based porous material is an excellent electrochemical anode material, its specific surface area is higher than that of graphene, and it has a three-dimensional network structure, which can provide multi-dimensional electronic transmission channels, and increase the contact area with the electrolyte, so as to realize the rapid transmission of electrons and ions at a high rate. This paper mainly describes the development, preparation and application of graphene based porous materials. Graphene based porous materials with high specific surface area and rich porous network structure were successfully prepared by chemical activation method. The materials were characterized by means of scanning electron microscope and X-ray diffraction. The materials were applied to the negative electrode of supercapacitor and their energy storage properties were studied.<br>