Concrete material capable of charging, storing and discharging and preparation method thereof

The invention relates to a concrete material capable of charging, storing electricity and discharging and a preparation method thereof. The concrete material comprises the following raw material components: cement, quartz sand, quartz powder, silica fume, a carbon nanomaterial, steel fibers, a water reducing agent, a surfactant and water; wherein, according to the weight parts, the use amount of the cement is 600-1,000 parts, the use amount of the quartz sand is 660-1,100 parts, the use amount of the quartz powder is 210-350 parts, the use amount of the silica fume is 150-251 parts, the carbon nanomaterial accounts for 0%-0.2% of the total use amount of the cement, the volume mixing amount of the steel fiber is 1.0%-2.0%, the use amount of the water reducing agent accounts for 1.0%-2.0% of the total weight of the cement, and the use amount of the surfactant accounts for 1.0%-10.0% of the use amount of the carbon nanomaterial. By doping the steel fiber and the carbon nanomaterial, capacitance is formed in the