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Packaging technology for crystal silicon solar-energy photovoltaic battery unit

A technology for photovoltaic battery packs and packaging processes, applied in circuits, electrical components, semiconductor devices, etc., can solve the problems of reduced battery efficiency, low production efficiency, easy formation of bubbles, etc., and achieves good lamination effect, high production efficiency, layered High quality compression effect

Inactive Publication Date: 2009-09-16
HUAIAN WEIHAO NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the existing packaging process is easy to form air bubbles, which reduces the efficiency of the battery;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Example: The photovoltaic battery pack packaging process includes the following steps: 1. Front side welding: use a welding machine to weld the busbar to the main grid line of the positive negative electrode of the cell. The busbar is a tin-plated copper strip with a length of 2 times the length of the side, the extra ribbon is connected to the back electrode of the back battery when the back is welded;

[0014] 2. Backside series connection: Backside welding is to connect the cells in series to form a component string. The cells are positioned on the mold plate. The mold plate has grooves for placing the cells. The size of the grooves corresponds to the size of the cells. , Weld the positive and negative electrodes of the "front cell" to the back positive electrode of the "rear cell", the cells are connected in series to form a module Lu, and the leads are welded to the positive and negative electrodes of the module string;

[0015] 3. Lamination laying: the strings of...

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Abstract

The invention discloses packaging technology for a crystal silicon solar-energy photovoltaic battery unit, which comprises the following steps of front welding, back concatenation, laminated laying, component lamination, battery trimming, framing, junction box welding, packaging testing and warehousing, and has the advantages that the packaging technology removes bubbles by lamination and vacuum-pumping so as to have good lamination effect, performs fractionated lamination so as to ensure that the relative position of a component string, glass and the like is stable and the lamination quality is high, and has short curing time and high production efficiency.

Description

technical field [0001] The invention relates to a battery encapsulation process, in particular to a crystalline silicon solar photovoltaic battery pack encapsulation process. Background technique [0002] At present, the country vigorously advocates the development of green energy, and photovoltaic cells are one of them. The utilization rate and qualification rate of photovoltaic cells are closely related to the packaging process of battery packs. On the one hand, the existing packaging process is easy to form air bubbles, which reduces the efficiency of the battery. On the other hand, the lamination is performed at one time, which takes a long time for lamination and low production efficiency. Contents of the invention [0003] The object of the present invention is to provide a crystalline silicon solar photovoltaic battery packaging process, the photovoltaic battery packaging is simple and reliable, the lamination time is short, and the production efficiency is high. ...

Claims

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Application Information

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IPC IPC(8): H01L31/18
Inventor 李广玉
Owner HUAIAN WEIHAO NEW ENERGY TECH
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