What are the characteristics of solar batteries
What are the characteristics of solar battery
Solar battery is the application of ‘battery’ in solar photovoltaic power generation. At present, lead-acid batteries, ordinary lead-acid batteries, gel batteries and alkaline nickel-cadmium batteries are used. At present, the solar batteries widely used in my country mainly include: lead-acid batteries and gel batteries. These two types of batteries are due to their inherent characteristics. The'free' maintenance feature and less environmental pollution are suitable for reliable solar power generation systems, especially unattended workstations.
The battery should have the following characteristics
1 Good deep cycle capability, good overcharge and super discharge capability.
2 Long service life, special process design, and colloidal electrolyte to ensure long battery service life.
is suitable for different environmental requirements, such as high altitude, high temperature, low temperature and other conditions, the battery can be used normally.
How the battery works
During the daytime, the sun shines on the solar module to make the solar module generate a certain range of DC voltage , Convert light energy into electric energy, and then transmit it to the intelligent controller, which is responsible for charging and protection. The electrical energy of the solar module is transferred to the storage battery for storage; storage requires storage batteries, so-called storage batteries are electrical and chemical equipment that stores chemical energy when necessary.
The main components of lead-acid batteries are as follows:
anode plate (lead peroxide.PbO2)->active material< /p>
cathode plate (sponge lead.Pb)>active material
electrolyte (dilute sulfuric acid)->sulfuric acid (H2SO4) Water (H2O)
Other (liquid plug, cover, etc.) cover, etc.
Battery use and maintenance
(1) Suitable work The temperature is 15°C/20°C.
(2) The connection method of the solar cell is to connect the positive pole and the positive pole, the negative pole and the negative pole of the solar cell. This is twice the energy of the solar cell and the voltage is the same The voltage of the solar cell is the same, and the two poles of the solar cell cannot be short-circuited.
(3) For newly installed or refurbished solar cells, the first charge should last a long time, and the first time is charged at the rated capacity of 1/10 current. (3) When charging for the first time, it should be recharged for a long time after installation or refurbishment. Before installation, it is necessary to measure whether the battery is sufficient. If there is not enough power, please charge for 8 hours or more than 16 hours in a sunny area, or use AC power to make the battery sufficient, and strictly avoid overcharging. When charging with alternating current normally, it is best to use step charging, that is, at the initial stage of charging, use high current and constant current charging, constant voltage charging for a certain period of time, and then use the traditional constant voltage floating charging method.
(4) Keep the battery clean. The installed solar cell poles should be coated with petroleum jelly to prevent corrosion.
(5) Configure solar cell online monitoring and management technology, measure and analyze the internal resistance of solar cells online, find battery defects in time, and maintain the battery in time.
(6) In order to prevent solar cells from freezing and cracking in winter, and to avoid direct sunlight in summer, solar cells should be placed in a ventilated and cold place. Contact: 0769-22771986
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