Why Lithium Batteries Are More and More Common in Solar Street Lights

With the deepening development of socialist new rural areas and the construction of beautiful villages, Solar street lights have become ubiquitous as lighting equipment. Solar street lights are not only energy-efficient and environmentally friendly, they also don't incur electricity bills, making them popular among the general public. Previously, many solar street lights used lead-acid batteries, but now, almost all use lithium batteries.

Why are lithium batteries so popular? What are their advantages over lead-acid batteries?

In recent years, lithium-ion solar street lights have seen rapid growth. They are not only widely used for lighting beautiful rural roads, but also, due to their high energy storage density, light weight, and compact size, they are now being used in various environments, including homes, residential communities, scenic parks, and more. This has led to the development of various LED lighting products, including solar lanterns, integrated solar lanterns, lawn lights, underground spotlights, and solar aviation lights. Why has the lithium battery industry experienced such rapid growth? In other words, why are lithium batteries superior to lead-acid batteries?

Lithium batteries differ significantly from lead-acid batteries in their internal reactions and how they are used.

The movement of electrons in lithium batteries during energy storage is a physical change, resulting in a long battery life. Lead-acid batteries, on the other hand, are less sensitive to environmental conditions and can still function in some low-temperature environments. However, because their internal charging and discharging processes involve chemical changes, their lifespan is shorter. However, it's also important to note that lithium battery packs, due to their nature, require very high cell consistency. If even one cell within a pack is different from the others, the overall performance of the pack will be reduced. Therefore, sorting is a crucial step in the production process of lithium batteries for solar street lights. As a solar street light customer using lithium batteries, have you observed this?

1. Lithium batteries are small and lightweight, making them easy to transport. Compared to lead-acid gel batteries, lithium-ion energy storage systems used in solar street lights of the same power are about one-third the weight and one-third the volume. This makes transportation easier and reduces transportation costs.

2. Lithium batteries have a high energy density and a longer lifespan. Energy density refers to the amount of energy stored in a given unit of space or mass. The higher the energy density of a battery, the more energy it can store per unit weight or volume. Many factors affect the lifespan of lithium batteries, and energy density is a crucial internal factor.

3. Lithium-ion battery solar street lights are easy to install. Traditional solar street lights require a dedicated battery pit and sealed underground boxes to house the batteries. Lithium-ion battery solar street lights are much easier to install. The lithium-ion battery can be mounted directly on a bracket, either in a hanging or built-in configuration.

4. Lithium-ion battery solar street lights are easy to maintain. Lithium-ion battery solar street lights require only the battery be removed from the pole or panel during maintenance. Traditional solar powered street lights require digging out the buried battery, which is much more labor-intensive.