Photovoltaic interconnection strip and photovoltaic cell

Abstract

The invention discloses a photovoltaic interconnection strip and a photovoltaic cell. The interconnection strip comprises a basic band used for making two battery pieces in connection. The basic band is characterized by comprising a shady surface connecting section connected with the shady surface of one battery piece, an illuminated surface connecting end connected with the illuminated surface of the other battery piece and a bending section located between the two battery pieces, the thickness of the end, close to the bending section, of the shady surface connecting section is reduced to form a shady surface thinning section, and the thickness of the end, close to the bending section, of the illuminated surface connecting section is reduced to form an illuminated surface thinning section. The photovoltaic cell comprises multiple battery strings, and the battery strings comprise multiple battery pieces in connection through the interconnection strip. According to the photovoltaic interconnection strip and the photovoltaic cell, novel connection design of a solar cell module is provided, the interval between adjacent battery pieces in single battery string is reduced to 0.5 mm to the minimum, meanwhile subfissure of the module is effectively reduced, the module efficiency is relatively improved by 0.5% or above, and the absolute value of the module efficiency is improved by 0.1% or above.

Description

technical field [0001] The invention belongs to the technical field of solar cell production and processing, and in particular relates to a photovoltaic interconnection strip and a photovoltaic cell assembly. Background technique [0002] A solar cell is a device that converts light energy into electrical energy by using the photoelectric effect or photochemical effect, also known as a solar chip or a photovoltaic cell. According to the different materials and technologies used, solar cells are mainly divided into two categories, one is crystalline silicon solar cells, and the other is thin-film solar cells. At present, no matter from the perspective of the global solar cell product structure, or from the perspective of China, which has the largest output of solar cells, crystalline silicon cells occupy an absolute advantage. [0003] Crystalline silicon solar cells are devices that directly convert light energy into electrical energy through the photoelectric effect or p...

AI Technical Summary

Problems solved by technology

However, blindly narrowing the distance between adjacent cells may cause the problem of cracks or fragments of the battery starting at the gap between the cells.

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