US 12,446,355 B2
Photovoltaic solar cell, solar cell module and manufacturing process
Xunlei Yan, Zhejiang (CN); Kun Yu, Zhejiang (CN); Changming Liu, Zhejiang (CN); and Xinyu Zhang, Zhejiang (CN)
Assigned to Shanghai Jinko Green Energy Enterprise Management Co., Ltd., Shanghai (CN); and Zhejiang Jinko Solar Co., Ltd., Haining (CN)
Filed by Shanghai Jinko Green Energy Enterprise Management Co., Ltd., Shanghai (CN); and Zhejiang Jinko Solar Co., Ltd., Zhejiang (CN)
Filed on Aug. 17, 2023, as Appl. No. 18/235,152.
Application 18/235,152 is a continuation of application No. 17/522,536, filed on Nov. 9, 2021, granted, now 11,764,313.
Claims priority of application No. 202110998160.X (CN), filed on Aug. 27, 2021.
Prior Publication US 2023/0402551 A1, Dec. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H10F 77/00 (2025.01); H10F 71/00 (2025.01); H10F 77/20 (2025.01)
CPC H10F 77/937 (2025.01) [H10F 71/00 (2025.01); H10F 77/20 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A photovoltaic solar cell, comprising:
a silicon substrate;
a passivation layer located on at least one surface of the silicon substrate; and
an electrode, an electrode pad, and an extension line printed on at least one surface of the silicon substrate,
wherein the electrode comprises a busbar and a finger crossed with each other, and the finger is in contact with the silicon substrate, and
wherein two ends of the extension line are respectively connected to the busbar and the electrode pad to reinforce a connection between the busbar and the electrode pad such that the extension line is not in direct contact with the finger, the extension line is in direct contact with the passivation layer, the electrode pad is not in direct contact with the silicon substrate, and the busbar is not in direct contact with the silicon substrate.