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. 28, 2025
Filed:
Jul. 11, 2022
Solarlab Aiko Europe Gmbh, Freiburg, DE;
Gang Chen, Yiwu, CN;
Wenli Xu, Yiwu, CN;
Kaifu Qiu, Yiwu, CN;
Yongqian Wang, Yiwu, CN;
Xinqiang Yang, Yiwu, CN;
SOLARLAB AIKO EUROPE GMBH, Freiburg, DE;
Abstract
The disclosure provides a solar cell and a back contact structure thereof, a photovoltaic module, and a photovoltaic system. The back contact structure includes a first doped region having an opposite polarity to a silicon substrate and a second doped region having a same polarity as the silicon substrate. An isolation region is arranged between the first doped region and the second doped region. The protective region arranged on the first doped region includes an insulation layer and a third doped layer having a same polarity as the second doped region. An opening is provided in the protective region to connect the first conductive layer to the first doped region. In the present invention, scratches caused by belt transmission in an existing cell fabrication process is resolved.