A battery assembly and photovoltaic system

Abstract

The utility model is suitable for photovoltaic technical field provides a kind of battery component and photovoltaic system, this battery component includes: front glue film, several cell strings, gap film, back glue film and back plate;Several cell strings are arranged with interval along first direction, be arranged between front glue film and back glue film, there is string spacing d1 between adjacent cell strings, gap film is located between cell string and back glue film;Gap film includes longitudinal film, longitudinal film is set in the position corresponding to string spacing between adjacent cell strings, longitudinal film width is D1, satisfy: the gap film is provided with the advantage that production cost is reduced.Gap film can reflect the light that irradiates to string spacing position to cell string, and further improve power generation efficiency.Through the proportion control of longitudinal film width and string spacing in suitable range, can maximumly reduce light loss, improve power generation efficiency.

Claims

1. A battery assembly, characterized in that, include: Front adhesive film, several battery strings, gap film and back adhesive film; A plurality of battery strings are arranged at intervals along a first direction and disposed between the front adhesive film and the back adhesive film, with a string spacing d1 between adjacent battery strings, and the gap film is located between the battery strings and the back adhesive film; The gap membrane includes a longitudinal membrane, which is disposed at a position corresponding to the string spacing between adjacent battery strings. The width of the longitudinal membrane is D1, satisfying the following: .

2. The battery assembly as claimed in claim 1, characterized in that, Each of the battery strings includes a plurality of battery cells arranged at intervals along a second direction, with a cell spacing d2 between adjacent battery cells. The gap membrane also includes a transverse membrane disposed at a position corresponding to the cell spacing between adjacent battery cells, and the width of the transverse membrane is D2, satisfying: .

3. The battery assembly as described in claim 2, characterized in that, The first direction and the second direction are perpendicular, and the transverse membrane and the longitudinal membrane are perpendicularly intersecting.

4. The battery assembly as claimed in claim 1, characterized in that, It also includes a front panel, which is disposed on the side of the front adhesive film away from the battery string, and the front panel is a glass plate.

5. The battery assembly as claimed in claim 4, characterized in that, It also includes a backplate, which is disposed on the side of the back film away from the battery string, and the backplate is a glass plate or an EVA plate.

6. The battery assembly as claimed in claim 5, characterized in that, The total area of ​​the gap membrane accounts for 1.12% to 9.53% of the total area of ​​the entire front or back plate.

7. The battery assembly as claimed in claim 1, characterized in that, The string spacing d1 has a length of 1.0mm to 2.0mm.

8. The battery assembly as claimed in claim 7, characterized in that, The width D1 of the longitudinal membrane is 4.0 mm to 10.0 mm.

9. The battery assembly as claimed in claim 2, characterized in that, The inter-piece spacing d2 has a length of 0.2mm to 1.2mm.

10. The battery assembly as claimed in claim 9, characterized in that, The width D2 of the transverse membrane is 2.0 mm to 8.0 mm.

11. A photovoltaic system, characterized in that, Includes the battery assembly as described in any one of claims 1-10.

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