Preparation method of solar shingled cell module

Abstract

The present invention provides a method for preparing a solar shingled battery module, which includes the following steps: providing a shingled battery string to be repaired, wherein the first area on the main grid of the battery sheet in the shingled battery string is covered with conductive glue and covered with conductive adhesive. The area of ​​the first area of ​​the glue is smaller than the area of ​​the main grid, and the conductive adhesive bonding part of the battery sheets in the shingled battery string is divided on the main grid of the divided battery slices. At least the second area covers the conductive adhesive, and the second area The area is the area on the main grid that does not overlap with the first area; the divided solar cells are arranged in layers, then heated and cured, and a shingled battery string is formed again, and then packaged to form a solar shingled battery module. By covering the conductive adhesive on part of the main grid of the cell, and applying new conductive adhesive in the area where the old adhesive is not applied during the repair process, the new conductive adhesive can be in complete contact with the main grid, improving the reliability of the module.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a preparation method of a solar shingled cell assembly. Background technique [0002] With the accelerated global consumption of conventional fossil energy such as coal, oil, and natural gas, the ecological environment continues to deteriorate, especially the increasingly severe global climate change caused by greenhouse gas emissions. The sustainable development of human society has been seriously threatened. Considering the limited stock of non-renewable energy and the serious environmental pollution caused by conventional fossil energy, countries all over the world have formulated their own energy development strategies to deal with the limitation of conventional fossil energy resources and the environmental problems caused by development and utilization. Under this world trend, solar energy has become one of the most important renewable energy sources due to its reliabili...

AI Technical Summary

Problems solved by technology

ECA is generally coated on the positive / negative electrodes of the battery by printing or spraying, and then the positive and negative electrodes of the battery are bonded together after curing at high temperature. For bad battery strings, the ECA bonding part of the bad battery sheet needs to be separated and then Re-coat new ECA for bonding. Generally, there will be residual ECA attached to the main grid of the battery after cutting. The mixture of new and old ECA may cause reliability problems.

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