JinkoSolar combines TOPCon cells with new welding and packaging tech for new module record

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JinkoSolar has steadily been improving the efficiency of its modules. Image: JinkoSolar

Solar Module Super League (SMSL) member JinkoSolar has claimed a module conversion efficiency record of 23.53%, beating its previous record of 23.01% set in January.

JinkoSolar said the breakthrough was the result of adopting tunnel oxide passivated contact (TOPCon) cells along with a new type of welding and packaging technology, which has reduced internal resistance and improved power efficiency.

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The result was independently tested and confirmed by TÜV Rheinland.

“We are confident that the investments we have made in R&D will lead to more innovative products for higher efficiency and reliability,” said JinkoSolar’s chief technology officer Hao Jin.

The solar industry is turning increasingly to TOPCon and other n-type solar cell technologies in order to boost conversion efficiency while limiting the effects of degradation. This year’s SNEC PV Expo in China saw the launch of several new n-type modules, and PV Tech was on hand to profile those launches.

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