So far, in response to different needs in different fields, humans have proposed and developed a variety of energy storage skills to meet the needs. Practice has proved that among the various energy storage technologies currently available in the world, lithium-ion battery energy storage technology is currently the most feasible technology path, because of its high energy density, small self-discharge, no memory effect, wide operating temperature range, It can be quickly charged and discharged, has a long service life, and has no environmental pollution. It is also called a green battery. Therefore, in the field of global road lighting, lithium-ion solar street lights with lithium-ion batteries as energy storage technology have gradually become people's new favorite, with huge market potential and good development prospects.