lithium ion battery cells 18650

　　What are the advantages of photovoltaic cells and how to maintain them?

　　The advantages of photovoltaic cells are that there is no danger of depletion and they are not restricted by the geographical distribution of resources; the power supply system works reliably, etc. In addition, the surface of the battery components must be kept clean, and it is strictly prohibited to use corrosive solvents or hard objects to wipe the battery components. Next, I will introduce the details to you.

　　1. Advantages of photovoltaic cells

　　1. No risk of depletion;

　　2. Absolutely clean (no pollution, except for batteries);

　　3. Not restricted by the geographical distribution of resources;

　　4. It can generate electricity close to where it is used, and the energy quality is high;

　　5. It is easy for users to accept it emotionally;

　　6. It takes a short time to obtain energy;

　　7. The power supply system works reliably.

　　2. Maintenance methods of photovoltaic cell modules

　　1. The surface of the battery component should be kept clean. Use dry or damp soft and clean cloth to wipe the battery component. It is strictly forbidden to use corrosive solvents or hard objects to wipe the battery component. Battery components should be cleaned when the irradiance is lower than 200W/m2. It is not advisable to use liquids with a large temperature difference from the components to clean the components.

　　2. The battery components should be checked regularly. If the following problems are found, the battery components should be adjusted or replaced immediately. The battery components have broken glass, scorched back plates, and obvious color changes; there are bubbles in the battery components that form communication channels with the edges of the components or any circuits; the battery component junction boxes are deformed, twisted, cracked, or burned, and the terminals cannot be used properly. touch.

　　3. The live warning mark on the battery component must not be lost.

　　4. For battery components with metal frames, the frame and bracket should be well combined, the contact resistance between the two should not be greater than 40, and the frame must be firmly grounded.

　　5. When working under no shadow conditions, when the solar irradiance is more than 500W/m2 and the wind speed is not more than 2m/s, the temperature difference on the outer surface of the same battery module (the area directly above the battery) should be less than 20°C. . Photovoltaic power stations with an installed capacity greater than 50kWp should be equipped with infrared thermal imaging cameras to detect temperature differences on the outer surfaces of battery components.

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