LONGi sets record for indium-free HJT cell efficiency

Recently, the reporter learned from LONGi Green Energy Technology Co., Ltd. that, certified by the German Institute of Solar Energy Hamelin (ISFH), the LONGi R&D team created 25.40% indium-free HJT cells on M6 full-size (274.5c㎡) monocrystalline silicon wafers. The new world record of conversion efficiency continues to consolidate the industrialization foundation of the low-cost technology route of HJT batteries.

It is reported that the certified indium-free HJT battery is based on the advanced surface passivation technology developed by the team in the early stage, and uses low-cost indium-free targets to prepare transparent conductive oxide films. higher conversion efficiency. The successful development of high-efficiency indium-free HJT batteries can effectively get rid of the dependence on indium resources for mass production, and the cost of batteries has also been greatly reduced.

The LONGi R&D team stated that this successful breakthrough in the efficiency of indium-free HJT cells is inseparable from the continuous accumulation of LONGi's technological innovation. At present, LONGi has also achieved overall leadership in various new high-efficiency battery technologies such as n-type TOPCon, p-type TOPCon, n-type HJT and p-type HJT. The reporter learned that in the past year, LONGi has broken the world record of battery conversion efficiency seven times on different technical routes. The R&D team pointed out that the core of LONGi's current innovation is still the research based on the new generation of battery technology. LONGi's R&D team firmly believes that the "first principle" of the photovoltaic industry is the lowest cost per kilowatt hour. In the future, the R&D team will continue to adhere to this principle, continuously improve the conversion efficiency of the commercialization of the photovoltaic industry, and create long-term value for the industry and society with photovoltaic products with more cost-per-watt advantages.