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.
Patent No.:
Date of Patent:
Jan. 27, 2026
Filed:
Sep. 25, 2024
Trina Solar Co., Ltd, Changzhou, CN;
Yunyun Hu, Changzhou, CN;
Jianpeng Zong, Changzhou, CN;
Binglun Han, Changzhou, CN;
Wei Liu, Changzhou, CN;
Daming Chen, Changzhou, CN;
Trina Solar Co., Ltd, Jiangsu, CN;
Abstract
This present application provides a back contact solar cell and solar cell module, comprising: a substrate, provided with a substrate front surface and a substrate back surface opposite to each other, wherein the substrate front surface is close to a main-light-receiving surface of the cell, and the substrate back surface is close to a non-main-light-receiving surface of the cell; P-type polarity region, including a first doped semiconductor layer; N-type polarity region, including a second doped semiconductor layer, the N-type polarity region and the P-type polarity region are alternately located on side of the substrate back surface, wherein, a thickness of the second doped semiconductor layer along a normal direction of the cell is smaller than a thickness of the first doped semiconductor layer along the normal direction; and an isolation region, located between each two adjacent N-type polarity region and P-type polarity region. The back contact solar cell and solar cell module provided by this application can take into account the electrical and optical properties of the solar cell, further improving the short-circuit current, open-circuit voltage and photoelectric conversion efficiency of the solar cell.