Solar battery assembly and preparation method thereof

Abstract

The invention relate to a solar battery assembly and a preparation method thereof. The solar battery assembly comprises a plurality of solar batteries and at least one fourth laser scribing, wherein each solar battery comprises a transparent conductive film, a solar battery layer and a metal back electrode which are sequentially overlapped, and the adjacent solar batteries are connected in serieswith each other through a laser scribing process; the fourth laser scribing penetrates through the metal back electrodes, the solar battery layers and the transparent conductive films, and the adjacent solar batteries are disconnected to form at least two independent battery units, wherein each battery unit comprises the solar batteries connected in series. The solar batteries assembly is dividedinto a plurality of independent battery units through the fourth laser scribing so that each battery unit comprises the specified number of solar batteries connected in series, therefore, the required working voltage and current can be obtained.

Description

Technical field [0001] The invention relates to a solar cell preparation technology, in particular to a solar cell component and a preparation method thereof. Background technique [0002] Solar cells have the characteristics of a wide range of raw materials, non-toxic, thin material thickness, low energy consumption in the production process and large-scale production, which can greatly reduce the cost of solar cells. [0003] At present, in order to achieve the optimal voltage and current of solar cells, an integration technology of connecting multiple solar cells in series to form solar cell modules is usually adopted. [0004] figure 1 It is a schematic diagram of the structure of a solar cell module in the prior art, figure 2 Yes figure 1 The schematic circuit diagram of the solar cell module shown. From figure 1 with figure 2 It can be seen that the solar cell module, through the first laser scribing 3, the second laser scribing 4, and the third laser scribing 5, connects a ...

AI Technical Summary

Problems solved by technology

[0006] However, the inventor found the following defects in the prior art during the research of the present invention: in order to find a balance between "dead area" and "resistance" when manufacturing solar cell components, the solar energy of the set area Cell modules typically form a fixed number of solar cells

Since a certain area of ​​solar cell components using the above-mentioned series connection method has fixed voltage and current values, it is impossible to flexibly obtain the desired voltage and current values; if the solar cell components with such a high voltage are exposed to the external environment, then Causes a great safety hazard; and the existing inverter cannot be applied to a larger area of ​​battery components with high voltage

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