A solar cell and a cell assembly

CN224760580UActive Publication Date: 2026-09-15ZHEJIANG AIKO SOLAR ENERGY TECH CO LTD +4
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Patent Information

Application Number
CN202522078447.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-09-15
Estimated Expiration
2035-09-26

AI Technical Summary

Benefits of technology

[0027]The solar cell provided in this embodiment of the invention includes a first sub-grid line and a second sub-grid line extending along a second direction, and the first and second sub-grid lines are alternately arranged in a first direction X. The first sub-grid line is continuous in a first series connection area and discontinuous in a second series connection area; the second sub-grid line is continuous in the second series connection area and discontinuous in the first series connection area. At least one first main grid line is disposed within the first series connection area, and the first main grid line is connected to at least a portion of the first sub-grid lines. The first main grid line provides a low-resistance path, efficiently collecting the current from the first sub-grid line. The linewidth of the first main grid line gradually increases from its midpoint to both ends. The ends of the first main grid line provide better mechanical strength while reducing transmission resistance, providing additional mechanical support to the substrate, resulting in more uniform stress distribution during welding and reducing the risk of microcracks in the cell. As the first main grid line narrows, the narrower first main grid line reduces shading and increases the light-receiving area of ​​the cell. The spacing between the second sub-gate lines on both sides of the first main gate line is positively correlated with the linewidth of the first main gate line. Therefore, as the first main gate line narrows, the second sub-gate line on one side of the first main gate line can get closer to the first main gate line, thus enabling the second sub-gate line to collect carriers more fully and improve the fill factor and conversion efficiency of the battery.

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Abstract

The utility model discloses a solar cell and battery assembly, include: substrate, first vice grid line, second vice grid line and first main grid line, be provided with first series connection area and second series connection area on the substrate, and first vice grid line and second vice grid line are alternately arranged in the first direction, first vice grid line is continuous at first series connection area, and is intermittent at second series connection area, second vice grid line is continuous at second series connection area, and is intermittent at first series connection area, first main grid line sets up in at least one first series connection area, and extends along the first direction, and first main grid line is connected with at least partial first vice grid line, wherein, the line width of first main grid line gradually increases from the midpoint of first main grid line to the both ends of first main grid line, and the interval between second vice grid line of first main grid line two sides is positive correlation with the line width of first main grid line, and the solar cell and battery assembly provided by the utility model embodiment realize more sufficient collection carrier, and promote the filling factor and conversion efficiency of battery.
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