Recently, the highest efficiency of heterojunction batteries has exceeded 25.29% for the first time in the heterojunction test line formed by PECVD and PVD developed by Sany Silicon Energy Equipment Company. For the first time, the efficiency of
the Sany heterojunction test line exceeded 25%, reaching 25.29%. The double-sided microcrystalline process will be developed in the future, and the efficiency is expected to go up to a higher level. The self-developed PECVD and PVD projects
of Sany Silicon Energy Equipment Company were established in 2022, and a series of work such as scheme design, manufacturing and assembly, commissioning and delivery, and performance optimization were completed in a short time. At present, the self-developed equipment is in version 1.0, and version 2.0 is steadily advancing. It is just around the corner to build heterojunction battery equipment with high productivity, high efficiency and low cost.