Tongwei Co., Ltd.: The THC production line based on HJT technology has completed the development of double-sided nanocrystals, and the current highest efficiency is 26.49%.

On July 25, an investor inquired about Tongwei's current battery technology progress and its advantages on the interactive platform.

Tongwei shares responded that the company independently developed the industry's first large-size TOPCon PECVD Poly technology production line , and launched TNC in 2022. Battery Products, First 9 GW TNC & nbsp; At present, the average conversion efficiency of the battery production line has reached 25.7%, with a yield of 98.2% . It is planned to complete the SE upgrade of the production line in the third quarter of this year, and the efficiency of the production line will be increased by more than 0.2% on the existing basis. The company's THC production line based on HJT technology has completed the development of double-sided nanocrystals, with the current highest efficiency of 26.49% , module power of 732.6 W (210 size 66 version, TUV Nande), and yield of more than 97%. In order to further enhance the market competitiveness of THC products, the company is speeding up the development of copper interconnection technology, and has made important breakthroughs in equipment, technology and material development, and is promoting the GW copper interconnection test in an orderly manner. In addition to the above technical routes, the company has also synchronously promoted the research and development of advanced technologies such as full-back contact batteries and perovskite/silicon tandem batteries, and has made positive progress.