The reporter recently learned from China's Yingli Group, a solar battery company, that the company launched a new generation of Panda-based N-type single-crystal batteries based on ion implantation technology, and the TwinMAX Bifacial series of double-sided power generation double glass components, a few days ago in the Chinese Academy of Sciences Sun In the test organized by the Photovoltaic Power Generation System and the Wind Power System Quality Inspection Center, 24.6% of the integrated power generation efficiency was achieved, which is the most advanced level in the world.
According to reports, based on the mass production technology upgrade of the first-generation Panda N-type single-crystal double-sided high-efficiency battery production line, the new-generation Panda high-efficiency battery utilizes ion implantation technology to improve battery efficiency, the positive power generation efficiency can reach 21.5%, and the backside efficiency can reach positive. Over 95%, leading the industry in similar technologies. Previously, in the world-famous TUV certification, the conversion rate of double-sided power generation efficiency of the single-cell battery of the product reached 24.6%.
Through field tests, the TwinMAX series of photovoltaic modules (60 cells) manufactured with the new-generation Panda battery, the front generating power can exceed 300W. At the optimized system installation site, the backside of the module can contribute up to 30% of the frontal power generation, the actual power generation The power exceeds 380W and the equivalent module efficiency exceeds 24%. It has been successfully applied in China's first photovoltaic "leader" demonstration project - the 50MW project of the National Advanced Technology Photovoltaic Demonstration Base in Datong coal mining subsidence area in Shanxi Province. This is also the largest in the world. High-efficiency N-type single crystal double glass assembly application project.
Compared to conventional components, the TwinMAX Bifacial series also features double-sided power generation, good low light, strong resistance to corrosive gas erosion such as salt spray, ammonia, and PID (potential potential-induced decay), and excellent durability. , 30 years line nature guarantee and other unique advantages.
According to reports, Yingli's independently researched and developed “Panda†N-type high-efficiency solar cell is an integration of N-type double-sided cell technology and MWT metal-wrapped cell technology, which fills the gap of N-type cell technology and has become the world's three most efficient solar cells. one.
At present, this series of products has passed stringent reliability verification and mass production. Yingli plans to complete the ion implantation technology upgrade of the existing 800MW Panda battery production line in the next 1-2 years through an innovative business model. (Wen Wang Yi)
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