公开(公告)号：US20220310858A1

公开(公告)日：2022-09-29

申请号：US17612526

申请日：2020-11-18

Applicant: JINGAO SOLAR CO., LTD.

Inventor： Xiulin JIANG ,  Wenshuai TANG ,  Kun TANG ,  Lanfeng WU

IPC: H01L31/0224 ,  H01L31/048 ,  H01L31/05 ,  H01L31/068

Abstract: The invention, which discloses a back contact type solar cell module and a preparation method, relates to the technical field of solar cells. The back contact type solar cell module may comprise: N small cell pieces, p+ doped regions and n+ doped regions arranged in a staggered manner being provided on the back surface of the small cell piece, the p+ doped regions of the small cell piece being provided with positive electrode fine grid lines, the n+ doped regions of the small cell piece being provided with negative electrode fine grid lines, and each of the small cell pieces being not provided with a main grid line for collecting currents of the n+ doped regions and the p+ doped regions; (N−1) conductive strips, each of which includes a substrate and conductive patterns provided on the substrate, each of the substrates being provided between two adjacent small cell pieces, and the conductive patterns being used for electrically connecting fine grid lines with opposite polarities on two adjacent small cell pieces at intervals in sequence so as to connect the respective small cell pieces in series. The back contact type solar cell module provided in the implementation mode has a comparatively high efficiency stability, and a low resistance loss on silver grid lines, and the fill factor of the module is high.

公开(公告)号：US20220029040A1

公开(公告)日：2022-01-27

申请号：US17296492

申请日：2019-06-28

Applicant: JINGAO SOLAR CO., LTD.

Inventor： Haipeng YIN ,  Wei SHAN ,  Kun TANG

IPC: H01L31/068 ,  H01L31/18 ,  H01L31/036 ,  H01L31/0224

Abstract: The present disclosure relates to the technical field of solar cells, and relates to a crystalline silicon solar cell and a preparation method thereof, and a photovoltaic assembly. The crystalline silicon solar cell includes a crystalline silicon substrate, a passivation layer that is disposed on the crystalline silicon substrate and that is provided with through holes, a carrier collection layer that is disposed on the passivation layer, and electrodes that contact the carrier collection layer; the carrier collection layer contacts the crystalline silicon substrate by means of the through holes on the passivation layer. In the described crystalline silicon solar cell, through holes are provided on the passivation layer, and the carrier collection layer contacts the crystalline silicon substrate by means of the through holes on the passivation layer.