Self-charging energy storage device

The invention discloses a self-charging energy storage device, and relates to the technical field of energy storage devices. The self-charging energy storage device comprises a temperature sensing air outlet mechanism, a heat dissipation mechanism and an electric quantity detection and control mechanism. According to the self-charging energy storage device, the temperature is sensed through the temperature sensing air outlet mechanism, the gears of the fan are regulated and controlled, heat dissipation is conducted in a heat convection mode, the heat dissipation mechanism uses wind power as power to control the size of the ventilation holes so as to be matched with heat dissipation, wind is a heat dissipation medium and is also a power source for pushing the air receiving cover, use is sufficient, the ventilation holes are closed at ordinary times, and heat dissipation is achieved. Impurities are difficult to enter, the sizes of the heat dissipation holes are matched according to the required heat dissipation