In daily life, it is often seen that lithium battery solar street lights are used as lighting tools on both sides of the road. However, from the appearance, you will not see the battery with energy storage, only the solar panel that collects solar energy, but at night, the power of the energy storage battery will be used to provide electricity for the street lights and illuminate the road conditions. Therefore, when we understand solar street lights, we also need to know the type of energy storage battery and its installation and anti-theft.

Lithium battery solar street light solar photovoltaic power generation system is a solar cell made of the principle of photovoltaic effect to directly convert solar energy into electrical energy. A solar cell is the smallest unit for photoelectric conversion. Its size is about 4 square centimeters to 100 square centimeters. The working voltage of the solar cell is 0.45 to 0.50 volts, and generally it cannot be used as a power source alone. After connecting Shanneng battery cells in series, parallel and encapsulation, it becomes a solar cell module. Its power ranges from a few watts to hundreds of watts and can be used as a power supply alone. The solar cells are connected in series, in parallel and mounted on the bracket to form a large solar cell array. It can output several hundred watts, where kilowatts or more, and is an electrical energy generator for photovoltaic power plants. The commonly used lithium battery solar street light batteries are mainly silicon solar cells. There are currently three commercialized silicon solar cells in the world: monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells.

Lithium battery solar street light monocrystalline silicon solar cell is the fastest developing solar cell at present. Its structure and production process have been finalized, and its products have been widely used in space and ground. This solar cell uses high-purity single-crystal silicon rods as raw materials, with a purity requirement of 99.999%. In order to reduce production costs, solar-grade monocrystalline silicon rods are now used in ground-based solar cells, and the material performance indicators have been relaxed. Monocrystalline silicon solar cells have the highest manufacturing cost, but also the highest photoelectric conversion efficiency, the highest reaching 24%. At present, the polycrystalline silicon materials used in polycrystalline silicon solar cells are mostly aggregates containing a large number of single crystal particles, or are melted and cast with waste single crystal silicon materials and metallurgical grade silicon materials, and then injected into graphite molds. , that is, polycrystalline silicon ingots. This silicon ingot can be cast into cubes for slicing into square solar cells, which can improve material utilization and facilitate assembly. The production process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, and its photoelectric conversion efficiency is about 12%, which is slightly lower than that of monocrystalline silicon solar cells. developed a lot.