A method for reducing the efficiency decay of perc bifacial cells

Abstract

The present invention relates to the technical field of battery efficiency attenuation, in particular to a method for reducing efficiency attenuation of PERC bifacial cells. It includes data acquisition, real-time wind data acquisition, position adjustment of PERC double-sided battery, wind load data collection is to record wind load data with data processing module after PERC double-sided battery is subjected to continuous wind load; PERC double-sided battery efficiency decay Data, after the battery has been subjected to continuous wind load testing, the component power attenuation is detected and recorded through the data processing module. The purpose of the present invention is to change the orientation of the battery when the wind load is sufficient to damage the battery through detection, comparison and analysis In this way, damage to the battery crystals and degradation of battery efficiency can be prevented, thereby improving the service life of PERC bifacial batteries.

Description

technical field [0001] The present invention relates to the technical field of battery efficiency attenuation, in particular to a method for reducing efficiency attenuation of PERC bifacial cells. Background technique [0002] PERC double-sided battery is a kind of solar power generation battery. Through the existing technology, the back side can also generate electricity through solar energy, and obtain higher charging and power generation efficiency than ordinary single-sided batteries. It adopts the same single crystal structure as traditional batteries. When subjected to mechanical load, some crystals will be damaged, which will affect the efficiency of the battery and cause attenuation. In addition to being used in photovoltaic power stations, the battery will be used on traffic lights in areas without circuit laying, usually located on plateau roads. Some dangerous street lamps are used to warn vehicles. The high-altitude area will be accompanied by a large wind load w...

AI Technical Summary

Problems solved by technology

[0002] PERC double-sided battery is a kind of solar power generation battery. Through the existing technology, the back side can also generate electricity through solar energy, and obtain higher charging and power generation efficiency than ordinary single-sided batteries. It adopts the same single crystal structure as traditional batteries. When subjected to mechanical load, some crystals will be damaged, which will affect the efficiency of the battery and cause attenuation. In addition to being used in photovoltaic power stations, the battery will be used on traffic lights in areas without circuit laying, usually located on plateau roads. Some dangerous street lamps are used to warn vehicles. The high-altitude area will be accompanied by a large wind load when there is sufficient light. When the wind load is large enough to impact the PERC double-sided battery, the single crystal will be broken and the efficiency of the PERC double-sided battery will be attenuated. These locations belong to sparsely populated areas, and maintenance is extremely difficult, so it is necessary to increase the service life of the monomer. The purpose of the present invention is to change the orientation of the battery when the wind load is sufficient to damage the battery through detection, comparison and analysis, so as to prevent damage to the battery crystal. Decrease in battery efficiency, thereby improving the service life of PERC bifacial batteries

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