ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,733,291, issued on Sept. 8, was assigned to Trina Solar Co. Ltd. (Changzhou, China).
"Back contact solar cell and method for preparing same, and battery assembly" was invented by Yunyun Hu (Changzhou, China), Guangtao Yang (Changzhou, China) and Yifeng Chen (Changzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A back contact solar cell includes a semiconductor substrate, a first functional layer, a second functional layer, a laser protection layer, a first electrode structure, and a second electrode structure. The semiconductor substrate has a light-receiving surface and a shady surface. The first functional layer is formed in the first polar...