The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 02, 2025

Filed:

Oct. 19, 2022
Applicant:

Longi Green Energy Technology Co., Ltd., Xi'an, CN;

Inventors:

Xiyan Tang, Xi'an, CN;

Liang Fang, Xi'an, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10F 77/20 (2025.01); H10F 71/00 (2025.01); H10F 77/30 (2025.01); H10F 77/70 (2025.01);
U.S. Cl.
CPC ...
H10F 77/219 (2025.01); H10F 71/138 (2025.01); H10F 77/244 (2025.01); H10F 77/311 (2025.01); H10F 77/315 (2025.01); H10F 77/703 (2025.01);
Abstract

The present disclosure provides a back-contact solar cell, a fabrication method, and a solar-cell assembly. In one aspect, a back-contact solar cell includes a solar-cell body and an isolating groove. The solar-cell body includes a silicon substrate, a first semiconductor layer in a first region of a back surface of the silicon substrate, a second semiconductor layer having a portion in a second region of the back surface, and a transparent conductive film layer stacked on the first and second semiconductor layers. The isolating groove extends through the second semiconductor layer and the transparent conductive film layer. An area of a cross section of the isolating groove decreases towards the silicon substrate, and the cross section is parallel to the silicon substrate.


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Tang, Xiyan. (2025). Back-contact solar cell, manufacturing method therefor, and solar-cell assembly (U.S. Patent No. 12408477). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12408477

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