Solar street lamps have now become the main facilities for road lighting in cities and villages, the equipment is simple, without a lot of wiring, after converting light energy into electrical energy, and converting electrical energy into light energy, bringing a piece of brightness to the night, in which the rechargeable and discharged battery plays a key role.

Compared with the lead-acid battery or gel battery in the past, the lithium battery commonly used now is better than power, and it is easier to achieve fast charging and deep discharge, and the life is relatively long, so it also brings us a better experience with the lamp, but there is also a difference between the quality of lithium batteries, let's start from its packaging form to see what the characteristics of these lithium batteries are, which one is better, and the packaging form often has three types: cylindrical winding, square stacking and square winding.

Solar lithium battery? Simply speaking, cylindrical batteries (cylindrical winding) generally use steel shells and aluminum shells. The process is relatively mature, small size, sensitive to groups, low cost, mature process and good consistency; After grouping, the heat dissipation is not well planned, the weight is heavy, and the specific energy is low.

Shaped batteries (square winding), steel shells are the majority in the early stage, and aluminum shells are mostly in the early stage. Good heat dissipation, simple group planning, good reliability, high safety, explosion-proof valve, high hardness; The cost is high, there are many types, and the process level is difficult to unify, which is one of the mainstream skill paths.