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An integrated thin film solar cell module and its preparation method

A solar cell and integrated technology, applied in the field of solar photovoltaic power generation, can solve the problems of reduced photoelectric conversion efficiency, complex series process of integrated solar energy, and poor reliability, and achieve the effect of fewer electrical connection points, high reliability, and simple process

Active Publication Date: 2016-08-10
紫石能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For this reason, what the present invention aims to solve is that the integrated solar energy series process in the prior art is complicated, the photoelectric conversion efficiency is easily reduced, and the reliability is poor, and an integrated thin film solar cell module with a simple series process and high reliability is provided. Its preparation method, and the tandem method of described thin-film solar cell unit

Method used

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  • An integrated thin film solar cell module and its preparation method
  • An integrated thin film solar cell module and its preparation method
  • An integrated thin film solar cell module and its preparation method

Examples

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Embodiment 1

[0067] This embodiment provides a method for connecting thin-film solar cell units in an integrated thin-film solar cell module in series, which includes the following steps:

[0068] Step 1: Prepare several independent thin-film solar cell units, such as figure 2 As shown, the thin-film solar cell unit includes a flexible conductive substrate 100 and a photovoltaic layer 102 disposed on the flexible substrate 100, and the same side of the thin-film solar cell unit is provided with several recesses toward the inside of the photovoltaic layer 102. interconnection region 104, to expose a partial region of the flexible conductive substrate 100;

[0069] Step 2: Prepare several conductive patterns 300 that are independent of each other and arranged in an array. The conductive pattern 300 includes a bus 304, a gate line 302 connected to the same side of the bus 304, and a gate line 302 extending from the other side of the bus 304. Interconnection strips 306, the position interval...

Embodiment 2

[0074] This embodiment provides an integrated thin-film solar cell assembly and a manufacturing method thereof. The integrated thin-film solar cell assembly includes a solar cell assembly, a diode assembly and a rear sheet 500 sequentially arranged on a front sheet 400 .

[0075] The solar module includes a number of thin-film solar cell units divided by thin-film solar cells, and the adjacent thin-film solar cell units are connected in series; the front plate 400 is also provided with a number of conductive patterns that are independent of each other and arranged in an array 300, an insulating strip 312 is provided at the interval adjacent to the conductive pattern 300, the width of the insulating strip 312 is greater than the interval width of the adjacent conductive pattern 300, and the thin film solar cell unit is arranged on the conductive pattern 300 above; the diode assembly includes several thin film diodes 502 arranged on the back of the thin film solar cell unit, and ...

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Abstract

The invention provides an integrated thin-film solar battery component and a preparation method thereof. According to the method, cathodes of thin-film solar battery units are led out through grid lines, through a conducting effect of a bus and interconnection strips, the interconnection strips for being connected with the cathodes of the thin-film solar battery units and an interconnection zone in an anode of an adjacent thin-film solar battery are welded so as to realize series connection of the thin-film solar battery units inside the thin-film solar battery component; the process is simple, electrical connection points are less, and the reliability is high; only one laser scribing process is needed, and is finished on a completed coating workpiece, so that easily-caused improper process connection due to alternately performing the laser scribing process and a coating procedure is avoided, series resistance of each component unit is reduced and the open-circuit voltage is reduced accordingly; the phenomenon that each film is easy to be corroded by dust and steam in the cleaning process can be avoided, thereby efficiently improving photoelectric conversion efficiency of the integrated thin-film solar battery component.

Description

technical field [0001] The invention belongs to the field of solar photovoltaic power generation, and in particular relates to an integrated thin-film solar battery module and a preparation method thereof. Background technique [0002] Solar cells, also known as "solar chips" or "photovoltaic cells", are photoelectric semiconductor sheets that use sunlight to generate electricity directly. When sunlight is incident, the sunlight shines on the p-n junction of the semiconductor sheet to form new hole-electron pairs. Under the action of the p-n junction electric field, the photo-generated holes flow to the p-region, and the photo-generated electrons flow to the n-region, and the external circuit is connected. After that, a current is formed; in physics, it is called photovoltaic (English full name is Photovoltaic, abbreviated as PV), referred to as photovoltaic. [0003] In the context of the shortage of raw materials for crystalline silicon solar cells and the rapid rise in p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/05H01L31/048H01L31/18
CPCY02E10/50Y02P70/50
Inventor 顾世海黄凯特韩安军李琳琳张庆钊丁建
Owner 紫石能源有限公司
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