Solar storage battery

First of all, explain the definition of solar cell to the landlord: "solar cell" refers to the battery specially used for solar photovoltaic power generation system. It differs from the traditional lead-acid battery in three aspects:

Special solar cells are usually maintenance-free lead-acid batteries.

Special solar cells are usually colloidal cells with other components (such as sodium silicate) added to the traditional electrolyte, which are safer than ordinary lead-acid batteries, but have obvious self-discharge.

Colloidal batteries have strong adaptability to temperature environment, and can adapt to harsh environments such as high temperature and low temperature, especially in sparsely populated places.

There are many brands of solar cells on the market, but few really specialize in this. Many of them are batteries, lead-acid batteries and solar cells. After all, solar cells are colloidal batteries, which are more expensive than ordinary lead-acid batteries. At present, lead-acid batteries are mainly used in the market. If you want to buy it, I personally think Ricoh solar colloidal battery is not bad.

Teach you how to judge the quality of solar cells;

1, gel electrolyte, no internal short circuit. It has large heat capacity and strong heat dissipation ability, which can avoid the thermal runaway phenomenon that is easy to occur in general storage batteries, because it works extremely reliably at high temperature, the battery will not dry up, and the working temperature range is wide. This is also a method of judgment.

2. Because the battery is a colloidal solid, the electrolyte concentration is uniform and there is no acid delamination. In this way, the battery can be judged according to whether the acid solution is layered or not.

3. The acid concentration is low, and the corrosion to the electrode plate is weak, so the unique tubular electrode plate can be used, so the battery life is long.

4. The battery plate is made of antimony-free alloy, and the self-discharge of the battery is extremely low. After being stored at 20℃ for two years, there is still more than 50% capacity, that is, there is no need to replenish electricity for two years.

5, super strong ability to withstand deep discharge and heavy current discharge, with overcharge and overdischarge self-protection performance.

6. The battery has strong resistance to deep discharge, and can still be connected to the load after 100% discharge, and its original capacity can be restored within three weeks after charging.

7. PVC diaphragm with new invention patent is adopted to ensure better consistency and discharge performance of the battery.

As for the life of solar cells:

Generally depends on the applicable environment. If the ambient temperature is particularly high, generally speaking, based on 25 degrees, the service life will be reduced by half for every increase of 10 degrees;

In addition, it is also related to the charging conditions of the battery. If charging is often insufficient, charging less than discharging is easy to "break down" and the service life will not be long. The charge amount of a single cycle should be greater than 1.2 times the discharge amount.

There is also the depth of follow-up. If only 30% of the actual capacity of the battery is discharged each time, it can be cycled for more than 1500 times, which is about 4 years, but if it is 80% every time, it is only 1 year, and if it is 100%, it is about 1 year.

In addition, there are many kinds of batteries on the market, especially some unknown solar cells, which broke down in half a year. Try to buy some famous manufacturers.