Ultrathin flexible solar cell module

Abstract

The invention relates to an ultrathin flexible solar cell module which comprises a first transparent fluorine material thin film layer, a first hot melt adhesive film layer, a flexible heterojunctionsolar cell, a second hot melt adhesive film layer and a second transparent fluorine material thin film layer which are sequentially stacked, wherein the thickness of the flexible heterojunction solarcell is equal to 20-100 micrometers. According to the flexible heterojunction solar cell, a PN junction is manufactured by adopting an amorphous silicon thin film deposition technology, the thinner monocrystalline silicon wafer can be used, the weight of the obtained cell is less than one-fifth of that of a common cell, and the power-to-weight ratio of the manufactured solar cell module is up to more than 0.35 W / g. The thickness of the flexible heterojunction solar cell can be reduced to about 20 microns, so that the thickness of the cell assembly is greatly reduced.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201910381102.5 and the title of the invention "An ultra-thin flexible solar cell module" filed with the State Intellectual Property Office of China on May 8, 2019, the entire contents of which are incorporated herein by reference In this application. technical field [0002] The present application relates to the field of photovoltaic technology, in particular to an ultra-thin flexible solar cell assembly. Background technique [0003] In the field of photovoltaic power generation applications, most of the market uses crystalline silicon solar cell components. In general, the structure of crystalline silicon solar cell modules is composed of tempered glass on the front plate, EVA or POE, crystalline silicon cells, PET back plate material or tempered glass on the back plate, etc. Such crystalline silicon battery components are often of high quality, and the products are ...

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Problems solved by technology

[0008] The ultra-thin flexible solar cell module provided by this application can (1) solve the problem of low photoelectric conversion efficiency. The flexible heterojunction solar cell used has a high degree of symmetry in structure, and has double-sided power generation, low temperature coefficient, and no light. Attenuation, no potential-induced attenuation and other characteristics, its actual outdoor power generation is more than 20% higher than ordinary crystalline silicon cells

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