Solar battery component

Abstract

The invention discloses a solar cell module, comprising one or more series-coupled or parallel-coupled battery units, said battery unit comprising one or more series-coupled battery string series, said battery string series comprising one or more A battery string coupled in series by a bus bar, the battery string comprising a plurality of battery slices coupled in series by an interconnection bar; wherein two adjacent battery slices in the battery string connected by an interconnection bar have the same polarity, and Or, when the series of battery strings includes multiple battery strings, two or more adjacent battery strings are connected by bus bars, and the polarities of the two battery slices at the connection are the same. In the present invention, when solar modules are installed vertically, if 100% of the monolithic cells in each string are covered by lateral shadows, the power output of the modules will still be half of the output, so the invention reduces the electrical loss of solar cell modules and improves Solar module hot spot power loss.

Description

technical field [0001] The invention belongs to the technical field of solar energy, and in particular relates to a solar cell assembly. Background technique [0002] Sunlight shines on the semiconductor p-n junction to form new hole-electron pairs. Under the action of the electric field of the p-n junction, holes flow from the n region to the p region, and electrons flow from the p region to the n region. After the circuit is turned on, a current is formed. This is how photoelectric effect solar cells work. [0003] There are two ways of solar power generation, one is light-heat-electricity conversion, and the other is light-electricity direct conversion. The light-electricity direct conversion method uses the photoelectric effect to directly convert solar radiation energy into The smallest indivisible solar cell combination device with external packaging and internal connection, which can provide DC output alone, is called a solar cell module, that is, multiple single sol...

AI Technical Summary

Problems solved by technology

The existing connection method not only causes a large electrical loss caused by the interconnection strips, but also when the solar cell module encounters a horizontal shadow blocking 100% of the area of ​​each single cell in a string when it is installed vertically, the current and voltage of the cell will occur. If there is a change, the power output of the solar cell module will be greatly reduced, almost to zero

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