Longi(SH:601012) Jin Rong Jie·2025-05-03 11:23Group 1 - Longi Green Energy Technology Co., Ltd. has applied for a patent titled "A Back Contact Battery and Its Manufacturing Method," with publication number CN119907354A, filed on October 2023 [1] - The patent aims to prevent leakage between opposite conductivity-doped semiconductor layers in back contact batteries, involving a semiconductor substrate, first and second doped semiconductor layers, an intrinsic semiconductor layer, and an insulating mask layer [1] - The first doped semiconductor layer has a portion in the first region as the first doped part, while the remaining part is the second doped part, with the second doped part having a lower impurity doping concentration than the first doped part [1] Group 2 - Longi Green Energy Technology Co., Ltd. was established in 2000 and is located in Xi'an, primarily engaged in wholesale business [2] - The company has a registered capital of 757,804.4598 thousand RMB and has invested in 34 enterprises, participated in 325 bidding projects, and holds 205 trademark records and 1,931 patent records [2] - Additionally, the company possesses 54 administrative licenses [2]