高效太阳电池技术及其核心装备国产化进展

Localization Progress of Chinese Efficient Solar Battery Technology and Its Core Equipment

当前主流太阳电池——钝化发射极背面接触(Passivated emitter and rear contact,PERC)太阳能电池的量产效率已达23%,但接近理论上限。以隧穿氧化钝化(Tunnel oxide passivated contact,TOPCon)、异质结(Hetero Junction Technology,HJT)太阳能电池为代表的高效太阳电池因其效率高,必将取代PERC电池成为市场主流。然而,当前高效电池核心装备大部分仍是进口,因其价格昂贵,直接阻碍了我国新一代光伏技术发展。为了解决这个问题,国内装备厂商做了大量工作,已提出针对不同工艺的成套装备解决方案。本文分析了两种高效太阳电池的特点及工艺,针对工艺核心环节的需求,介绍了两种电池工艺核心装备的国产化进展,并指出相关装备的未来发展趋势。

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 China’s 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.