In recent years, road lighting, landscape lighting, smart lighting, plant lighting and other lighting fields have developed rapidly. The total amount of lighting energy consumption has gradually increased in proportion to total electrical energy consumption. For total energy is scarce and the ecological environment is destroyed, the vigorous development of solar lighting is extremely important. GTCAP super capacitor batteries for solar street lamp are green energy storage devices between traditional capacitors and batteries. Compared with batteries in the field of solar lighting, they are environment friendly, long charge and discharge cycle life (20000 times), long service life of 25 years, even short-circuit discharge without affecting its performance and life, wide operating temperature ( -30 ℃ to +60 ℃), long-term use without maintenance, high power density and easy recycling, etc.