Double-sided battery pack

Abstract

The invention discloses a double-sided battery pack, which is made of a transparent TPT (Triphenyltin) material and is suitable for the fields of photoelectricity and building materials. The battery packis manufactured by the following steps of: constituting a glass+EVA (Ethylene Vinyl Acetute)+cell+EVA+TPT laminated structure by using transparent TPT instead of the conventional back plate glass; constituting an array by adopting a plurality of double-sided solar cells, wherein each row of double-sided solar cells are connected with another row through an interconnecting bar, and all rows of the array are connected to a junction box through a bus bar and a lead-out wire; and laminating the battery pack and arranging an aluminum frame and the junction box. The double-sided battery pack has the advantages of convenience for processing and attractive appearance, and can generate power on double sides; and compared with the conventional double-glass component, the double-sided battery pack has the advantages that: the processing process is further simplified, the weight of the battery pack is reduced, and a double-sided cell can be applied to the fields of photoelectricity, building materials and the like more comprehensively.

Description

technical field [0001] The invention belongs to the technical field of solar cell components, and specifically relates to a double-sided power generation and transparent cell component, which is suitable for large glass curtain wall buildings, parking lots, highway sound insulation walls and other buildings, and is also suitable for power generation environments such as deserts and snow fields . Background technique [0002] Double-sided solar cells, that is, the front and back sides of the cell, can generate corresponding power under the irradiation of light, thereby indirectly increasing the power of the photovoltaic module and improving the corresponding conversion efficiency of the single cell. When the bifacial battery module is installed in a building, the front side of the module can be used to convert sunlight into electrical energy under the sunlight during the day; at night, the solar cells on the reverse side absorb the indoor light and convert it into electrical ...

AI Technical Summary

Problems solved by technology

[0004] This photovoltaic module with a double-glass structure solves the application problems of light transmission and double-sided cells, but it has the following disadvantages: the existing laminator has complicated process conditions when making double-glass modules, and because glass is a poor conductor of heat, Two layers of glass are used for lamination, and the total thickness of the glass is relatively thick. EVA glue is easy to cause cell crushing, cell displacement, double-layer glass misalignment, air bubbles and other undesirable phenomena during vacuuming, melting, and lamination, and the product yield is difficult. ensure

At the same time, the weight of the double-layer glass component is relatively heavy. When it is applied to the sunshade, daylighting roof and daylighting curtain wall of some low-rise buildings, it will increase the construction cost and has no advantages.

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