Ultra-light flexible crystalline silicon solar cell module and preparation method thereof

Abstract

The invention discloses an ultra-light flexible crystalline silicon solar cell component and a preparation method thereof. The ultra-light flexible crystalline silicon solar cell component includes a front film, a solar cell, a supporting material, an encapsulation glue and a back film, and the front film, the encapsulation glue, The solar cell, encapsulant, supporting material and rear mold are arranged in sequence and formed by vacuum thermocompression. The preparation method is: stack the front film, encapsulant, solar cell, encapsulant, support material and rear mold in sequence from top to bottom, under vacuum conditions with a temperature of 100°C to 150°C and a pressure of 15Kpa to 30Kpa , cured for 30 min to 60 min to obtain an ultra-light flexible crystalline silicon solar cell module. The ultra-light flexible crystalline silicon solar cell module of the invention has the advantages of high power generation efficiency, flexibility, light weight, etc., and the preparation method of the invention is integrally formed, and the process is simple.

Description

technical field [0001] The invention belongs to the field of solar cells, in particular to an ultra-light flexible crystalline silicon solar cell component and a preparation method thereof. Background technique [0002] With the development of the solar photovoltaic industry, photovoltaic power generation is becoming more and more popular. The use of solar power generation in various curved surfaces and low load-bearing environments puts forward higher requirements for the weight and flexibility of components. High-altitude long-endurance airships and long-endurance drones use solar power to provide energy, but they are very sensitive to the weight of solar cells, and conventional solar cells on the market are difficult to meet the requirements. Most of the existing crystalline silicon solar cell modules use glass as the encapsulation material to protect the cells, which is relatively heavy and cannot be bent, which limits its application in some fields. Chinese utility mod...

AI Technical Summary

Problems solved by technology

High-altitude long-endurance airships and long-endurance drones use solar power to provide energy, but they are very sensitive to the weight of solar cells, and conventional solar cells on the market are difficult to meet the requirements

Most of the existing crystalline silicon solar cell modules use glass as the packaging material to protect the cells, which is relatively heavy and cannot be bent, which limits its application in some fields

Chinese utility model patent 201120318220.0 discloses an ultra-thin solar cell module, which only changes the glass of the conventional crystalline silicon module into a light-transmitting film, which solves the problem of flexibility of the crystalline silicon module, but the module does not have certain toughness when it is flexible. Solar cells are prone to shattering, causing module failure, and modules are still heavy with this approach

Chinese utility model patent 201220268254.8 discloses a flexible crystalline silicon solar cell module. In addition to replacing the glass with a light-transmitting film, a carbon fiber reinforcement mesh is attached to the back of the module with Wacker E41 adhesive, and the support material is added to the solar cell module. The back of the back, and the support material is not in direct contact with the solar cell, and a layer of material (back film material or back sheet material) is separated in the middle. In this way, the solar cell module and the support material can be bonded directly with glue, and the process implementation It seems simple and convenient, but this method has the following defects: 1. This support structure needs to be coated with a layer of adhesive for bonding, which is a complicated process, and the use of glue increases the weight of solar cell components; 2. The support material protrudes from the sun. The back of the solar cell module brings a lot of inconvenience to the installation of the solar cell module and limits its scope of use

Generally, thin-film solar such as CIGS and amorphous silicon have low efficiency or high cost, and cannot be industrialized on a large scale.

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