Recently, we received good news from Trina Solar's State Key Laboratory of Photovoltaic Science and Technology. Its self-developed large-area 6-inch full back-electrode solar cell (IBC) efficiency exceeds 24% to 24.13%, and the open circuit voltage exceeds 700mV. This result has passed the third-party test and certification of Japan JET, marking a new milestone in the development of high-efficiency batteries.
Full back-electrode cells are the most complex of all single-crystal silicon cell types and have the most difficult structural design. Compared with traditional batteries, although the positive and negative grid lines of IBC batteries are located on the back of the battery, there is no need to consider the shading loss in the metal area, but also gives greater freedom to the design of the emitter junction, but with the ever-increasing battery conversion efficiency As the carrier injection concentration becomes higher and higher, the composite losses in the various regions inside the battery have changed significantly. Therefore, it is necessary to combine the preparation process to find the best balance between composite loss and optical loss.
Trina Solar's State Key Laboratory of Photovoltaic Science and Technology has been developing low-cost, high-efficiency solar cell technologies and products as a starting point, and has long been committed to developing high-efficiency crystalline silicon solar cell technologies that can be mass produced. In 2016, based on the highest 23.5% of IBC batteries, with an average efficiency of 23%, the laboratory focused on solving the problem of metal contact area recombination and carefully optimized the backside graphics. It is worth mentioning that this is a process route based on the equipment of an ordinary PERC battery production line, which does not add any cost compared to before.
Not long ago, its N-type double-sided battery based on the traditional preparation process has achieved a conversion efficiency of 22.6%, and it is in the leading position in the industry. Today, the advent of this highly efficient IBC battery has become a leader in low-cost single-crystal silicon cells. It is reported that this is China's first self-developed crystalline silicon solar cell with a conversion efficiency of more than 24% over a 6-inch area. The breakthrough of this technology marks a further step in the industrialization of IBC battery products in the world.
Dr. Feng Zhiqiang, the vice president of Trina Solar and the director of the State Key Laboratory of Photovoltaic Science and Technology, said that the realization of the industrialization of low-cost and high-efficiency solar cells is our ultimate goal. The large-area IBC battery developed by the State Key Laboratory of Photovoltaic Photovoltaic Science and Technology has a conversion efficiency of more than 24%, indicating that the laboratory has the ability to develop and produce highly efficient IBC batteries. The industrialization has played a positive role in promoting.
Dr. Pierre Verlinden, Trina Solar's chief scientist, is very optimistic about the market application of this product. He believes that high conversion efficiency IBC batteries not only can reduce the LCOE of photovoltaic systems, but also have a wide range of application prospects in special fields such as solar cars and solar airplanes. With the rise and continuous development of the new energy transportation revolution, high-efficiency solar cells will surely enter millions of households, becoming products that ordinary people can see, feel and use.
Safety is essential for tower cranes in construction engineering, as the inner-climbing Tower Crane is widely used in the construction of high-rise structures, design safety, reliability and support system which can be turnover is an important prerequisite for protecting the safety of construction.
Tower Crane Construction,Inner Climbing Tower Crane,Inner Climbing Erecting Tower Crane,High Rise Inner Climbing Tower Crane
Jinan Shanghangda Machinery Co., Ltd. , https://www.shdtowercrane.com