Jin Rong Jie·2025-07-19 06:51Group 1 - Shenzhen Jiejiawei Innovation Energy Equipment Co., Ltd. has applied for a patent for a "bifacial selective passivated contact structure solar cell and its preparation method" [1] - The patent application was published under CN120344020A with a filing date of April 2025 [1] - The preparation method involves forming a PN junction on the front side of the silicon wafer through high-temperature boron diffusion and creating a boron-doped P-type polysilicon layer and a phosphorus-doped N-type polysilicon layer on the front and back grid line areas respectively [1] Group 2 - Shenzhen Jiejiawei Innovation Energy Equipment Co., Ltd. was established in 2007 and is primarily engaged in specialized equipment manufacturing [2] - The company has a registered capital of 347.71 million RMB and has invested in 16 enterprises [2] - The company has participated in 87 bidding projects and holds 495 patent information records along with 11 trademark records [2]