US 12,426,400 B2
Flexible photovoltaic assembly and manufacturing method therefor
Yujun Zhang, Suzhou (CN); Aibing Tao, Suzhou (CN); Huanhuan Zhang, Suzhou (CN); Jia Shen, Suzhou (CN); and Guoming Zhang, Suzhou (CN)
Assigned to WUXI COOP&INNO GREEN ENERGY TECHNOLOGY CO., LTD., Jiangsu (CN); SUZHOU COOP&INNO GREEN ENERGY TECHNOLOGY CO., LTD., Suzhou (CN); and WUXI DINGSENMAO TECHNOLOGY CO., LTD., Jiangsu (CN)
Appl. No. 17/433,648
Filed by WUXI COOP&INNO GREEN ENERGY TECHNOLOGY CO., LTD., Wuxi (CN); SUZHOU COOP&INNO GREEN ENERGY TECHNOLOGY CO., LTD., Suzhou (CN); and WUXI DINGSENMAO TECHNOLOGY CO., LTD., Wuxi (CN)
PCT Filed Feb. 17, 2020, PCT No. PCT/CN2020/075534
§ 371(c)(1), (2) Date Aug. 25, 2021,
PCT Pub. No. WO2020/173321, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 201910148605.8 (CN), filed on Feb. 28, 2019.
Prior Publication US 2022/0149226 A1, May 12, 2022
Int. Cl. H10F 71/00 (2025.01); H10F 19/85 (2025.01); H10F 19/90 (2025.01)
CPC H10F 71/137 (2025.01) [H10F 19/85 (2025.01); H10F 19/904 (2025.01)] 12 Claims
OG exemplary drawing
 
1. A manufacturing method for a flexible photovoltaic assembly, wherein, the manufacturing method comprises the following steps:
1) connecting a plurality of cells in series to form a cell string;
2) using electrical connection materials to connect a plurality of the cell strings in series and/or in parallel to form a cell layer, wherein there are gaps between adjacent cell strings; the electrical connection materials are wires, and the plurality of the cell strings is connected in series and/or in parallel by using the wires; each wire comprises a conductive part for electrically connecting with the cell strings and an insulating part sleeved on the outside of the conductive part, and the insulating part is located in the gaps between adjacent cell strings;
3) sequentially stacking a front panel material layer, a front packaging material layer, the cell layer, a back packaging material layer, and a back panel material layer, and performing lamination to obtain a laminated member; wherein, the front panel material layer and/or the back panel material layer is provided with wire lead-out holes, and the wire lead-out holes are opened in the front panel material layer and the back panel material layer at positions corresponding to the insulating parts;
4) performing punching on the laminated member to remove materials that are located in the gaps to obtain a photovoltaic assembly, wherein the materials that are removed include the front panel material, the front packaging material, the back packaging material, and the back panel material, the photovoltaic assembly comprising a plurality of photovoltaic assembly units, and the plurality of photovoltaic assembly units are electrically connected by the electrical connection materials;
5) sequentially stacking a composite material layer, the photovoltaic assembly, and a flexible substrate layer, and performing lamination to obtain a flexible photovoltaic assembly;
6) punching the flexible photovoltaic assembly again after the lamination in step 5) to remove all materials in the gaps except the wires.