US 12,302,647 B2
Photovoltaic cell and photovoltaic module
Zhiqiu Guo, Zhejiang (CN); Jingguo Yang, Zhejiang (CN); Liqin Liu, Zhejiang (CN); Yingli Guan, Zhejiang (CN); and Shiliang Huang, Zhejiang (CN)
Assigned to ZHEJIANG JINKO SOLAR CO., LTD., Zhejiang (CN); and JINKO SOLAR.CO., LTD, Jiangxi (CN)
Filed by ZHEJIANG JINKO SOLAR CO., LTD., Zhejiang (CN); and JINKO SOLAR CO., LTD., Jiangxi (CN)
Filed on Oct. 3, 2023, as Appl. No. 18/480,432.
Claims priority of application No. 202310173021.2 (CN), filed on Feb. 14, 2023.
Prior Publication US 2024/0274737 A1, Aug. 15, 2024
Int. Cl. H10F 19/85 (2025.01); H10F 19/20 (2025.01); H10F 19/90 (2025.01); H10F 77/20 (2025.01)
CPC H10F 19/904 (2025.01) [H10F 19/20 (2025.01); H10F 77/215 (2025.01); H10F 19/85 (2025.01)] 5 Claims
OG exemplary drawing
 
1. A photovoltaic cell, comprising:
a semiconductor substrate;
a passivation layer arranged on a surface of the semiconductor substrate;
a plurality of busbars arranged on the passivation layer, wherein the plurality of busbars extend along a first direction (X) and are spaced apart from one another along a second direction (Y), wherein one of the first direction (X) or the second direction (Y) is a length direction of the photovoltaic cell, and the other of the first direction (X) or the second direction (Y) is a width direction of the photovoltaic cell; and
a plurality of electrode pads electrically connected to an electrode line, wherein the plurality of electrode pads are arranged on a side of the plurality of busbars facing away from the passivation layer along a thickness direction (Z) of the photovoltaic cell, or wherein the plurality of electrode pads are arranged on the passivation layer along the thickness direction (Z) of the photovoltaic cell, wherein one of the plurality of busbars further comprises a plurality of connection lines spaced apart from each other along the first direction (X), and adjacent connection lines of the plurality of connection lines are electrically connected to each other through a corresponding electrode pad of the plurality of electrode pads,
wherein, along the thickness direction (Z) of the photovoltaic cell, a vertical distance between a highest point of the plurality of electrode pads and a surface of the passivation layer is L1, and a vertical distance between a highest point of the plurality of busbars and the surface of the passivation layer is L2,
wherein a third part of one of the plurality of busbars is bent towards the semiconductor substrate to form a recessed portion along the thickness direction (Z), such that a gap is formed between the electrode line and a busbar of the plurality of busbars in the thickness direction (Z), and
wherein other part of the one of the plurality of busbars that is not bent toward the semiconductor substrate is configured such that L1 is equal to L2.