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The working principle of Jiaotong University Optics Valley solar battery

During the day, sunlight shines on solar modules, causing them to experience a certain amplitude of DC voltage, converting light energy into electrical energy, and then transmitting it to the intelligent controller. After overcharging protection by the intelligent controller, the electrical energy transmitted from the solar modules is transmitted to the battery for storage; And storage requires a battery, which is an electrochemical device that stores chemical energy and releases electrical energy when necessary.

The important components that make up a battery are as follows:

Anode plate (lead peroxide. PbO2) ->active substance

Cathode plate (sponge like lead, Pb) ->active substance

Electrolyte (dilute sulfuric acid) ->sulfuric acid (H2SO4)+water (H2O)

Battery casing

Isolation board

Others (liquid port plugs, caps, etc.)

The Use and Maintenance of Solar Batteries in Jiaotong University's Optics Valley

(1) Suitable working temperature: 15-20 ℃

(2) The method of connecting a solar battery is to connect the positive pole of the solar battery to the positive pole, and the negative pole to the negative pole. In this way, the power of the solar battery will double, and the voltage will be the same as that of a solar battery. The two poles of a solar battery must not be short circuited (bumped).

(3) For solar batteries that have been newly installed or refurbished for the first time, a longer period of charging should be carried out. For initial charging, it should be charged at a current of 1/10 of the rated capacity. Before installation, it is necessary to measure whether the battery is sufficient. If there is insufficient power, please charge the battery in a sunny area for more than 816 hours or use AC power to fully charge the battery. Overdischarge charging should be strictly prevented. When using AC power for normal charging, it is best to use a graded charging method, which is to use a constant current with a larger current to evenly charge the battery in the initial stage. After reaching the equalizing voltage and pressing it for a certain time, the conventional constant voltage floating charging method is used instead.

(4) Keep the battery itself clean. The installed solar battery poles should be coated with Vaseline to prevent corrosion of the poles.

(5) Configure online monitoring and management technology for solar batteries, conduct online measurement and analysis of internal resistance of solar batteries, timely detect battery defects, and carry out maintenance in a timely manner.

(6) In winter, prevent solar batteries from freezing and cracking, and in summer, prevent direct sunlight. Solar batteries should be placed in a ventilated and cool place.

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