Recently, Yingli Green Energy announced a new cooperation agreement with DuPont Photovoltaic Solutions. The new high-efficiency single-crystal module adopts DuPont's new generation of front conductive silver paste, Solamet® PV19B, which can improve the conversion efficiency of the battery by 19.8% and the output power of the conventional components of the 60-cell battery. Up to 275 watts, 0.1% more efficient than comparable products.
It is reported that the improvement of the battery efficiency is attributed to the better conductivity of the silver/silicon contact capability of the conductive silver paste Solamet® PV19B, excellent fine line printing technology, and better aspect ratio and printability. The slurry used by Yingli this time is designed by DuPont solution to increase the output power of photovoltaic modules. Compared with the previous generation of products, the efficiency of battery conversion can be significantly improved. In addition, the material has good ink penetration and can achieve high-speed printing, which increases the productivity of the production line by 26%, making the battery module manufacturers more competitive. At the same time, the module uses a TPT (Tedlar®/PET/Tedlar®) double-layer fluorine membrane backsheet made of DuPontTM Tedlar® polyvinyl fluoride (PVF) film, which has been tested in different climates. The components can provide protection for more than 30 years.
Wang Wei, director of sales for DuPont Photovoltaic Solutions Asia Pacific, stated that DuPont Photovoltaic Solutions is committed to the development of advanced materials to assist the photovoltaic industry in improving overall power output, useful life, and return on investment. Through cooperation with the industry leader Yingli Green Energy, we can further optimize the photovoltaic technology and accelerate the development of new advanced materials, so that clean and sustainable solar energy can be improved, making it an affordable energy to cope with the growing global Energy demand.
Dr. Song Dengyuan, chief technology officer of Yingli Green Energy Holdings Co., Ltd., said that materials are the key to ensure that PV modules can increase output power and extend the service life of components. This year marks the 13th year of the cooperation between Yingli and DuPont. Both parties have continued long-term cooperation in advanced technologies. The efficiency and reliability of Yingli's products have continued to increase, thereby reducing the cost of electricity generated by photovoltaic power generation and further realizing the vision of Yingli's production of solar power affordable for the people.
To seek innovation is to seek development. It is to seek the future. For a long time, Yingli is committed to promoting development through innovation and has built a wide range of international scientific and technological cooperation systems, with more than 100 well-known universities, research institutes and multinational companies at home and abroad, including the Netherlands Energy Research Center, the University of New South Wales, Australia and DuPont solutions. We have established a long-term and close research cooperation relationship, jointly carried out more than 500 cooperative researches, and created a number of internationally leading research results. By the end of 2015, Yingli had applied for 13 PCT international patents, 2006 Chinese patents, and 1512 patents such as “a solar cell grid electrode and solar cellâ€, and was ranked first in the industry. He has edited and participated in 72 international, national and industrial standards, undertook the national 973 project "Study on key issues of high-efficiency crystalline silicon solar cell technology", and 863 project "Key technologies for the industrialization of crystalline silicon solar cells with new electrode structure of more than 20% efficiency and There are 23 state-level science and technology projects such as demonstration production lines and 108 provincial and municipal science and technology projects, which have been rated as national innovative pilot enterprises.
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