Multi-dimensional folded flexible solar battery pack and manufacturing method thereof

Abstract

The invention relates to a multi-dimensional folded flexible solar battery pack and a manufacturing method thereof and belongs to the field of a solar photovoltaic technology. The technical problems that an interior metal lead in a flexible solar battery pack is easy to break and the like are solved. According to the multi-dimensional folded flexible solar battery pack, flexible solar battery chips are packaged between a front plate and a rear plate through an adhesive film; multiple flexible solar battery chips are in parallel connection through a lead string, so as to form a flexible solar photovoltaic array; an area for folding a battery pack is reserved between adjacent flexible solar battery chips; and an inner slot for storing the lead is arranged in the area for folding. The folding life of the multi-dimensional folded flexible solar battery pack designed by the invention is long; the folding times can reach above 4000 times, without the breaking condition of the metal lead; and the service life of the battery pack is ensured.

Description

technical field [0001] The invention relates to a multi-dimensional foldable flexible solar cell assembly and a manufacturing method, in particular to a flexible solar cell assembly with a high folding life and a manufacturing method thereof, belonging to the field of solar photovoltaic technology. Background technique [0002] With the improvement and demand of people's quality of life, the demand for mobile power is also increasing, and solar mobile power has undoubtedly become the most green and most suitable for modern life. Requirements, while the solar mobile power supply of traditional glass-encapsulated components has become a problem to be solved due to its heavy weight and large volume. With the development of flexible solar cell technology, its lightness, softness, and portability have become more and more concerns for commercial applications. However, due to its low conversion efficiency, a large battery area is required for a high-power mobile power supply. How ...

AI Technical Summary

Problems solved by technology

However, there is a general problem in the use of the above two flexible solar cell assemblies. After repeated use, the metal wires in the folded part of the battery assembly will be broken, causing the entire product to be scrapped. The design service life of the product is much shorter. Choosing different types of metal wires or metal wires with better folding resistance will delay the breakage of the folded part of the wire, but it has a very limited effect on increasing the service life of the product, and conventional solar cell modules use The encapsulation adhesive encapsulates the metal wires and the battery chip together. After the packaging is completed, the metal wires are completely fixed by the glue. When the solar cell product is folded, the metal wires will also be folded repeatedly. Since the metal wires have been encapsulated and fixed, they cannot be moved or deformed. , the folding process will cause the metal wires to be repeatedly stretched and compressed, and the repeated stretching and compression will quickly cause fatigue damage to the metal wires. When folded to a certain number of times, the metal wires will be completely broken, resulting in the scrapping of the entire battery assembly. At the same time, this kind of damage will accelerate with the increase of the frequency of use. It has been repeatedly verified through repeated tests that the metal wire arrangement of conventional solar cell products usually breaks when the product is folded less than 1000 times. The service life of the metal wires inside the battery pack is much shorter than the service life of the battery pack itself, thus limiting the use of the battery pack

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