NOUFERROUS METALLURGICAL EQUIPMENT

The mass production efficiency of the mainstream solar battery (passivated emitter and rear contact, PERC solar battery) has reached 23%, approaching the upper limit of theoretical value. The efficient solar batteries, represented by tunnel oxide passivated contact (TOPCon) and hetero junction technology (HJT) batteries, will replace PERC batteries to become the mainstream of the market because of their high efficiency. However, most of the core equipment of efficient batteries are still imported currently and at high prices, the development of Chinas new generation photovoltaic technology is directly impeded. In order to solve this problem, Chinese equipment manufacturers have done a lot of work, and have proposed packaged equipment solutions for different processes. In this paper, the characteristics and technology of two kinds of efficient solar battery are analyzed. According to the requirements of the core process, the localization progress of the core equipment of the two kinds of solar battery is introduced, and the future development trend of the related equipment is pointed out.