Fast Science and Technology May 24 news, Longji Green Energy issued a notice that recently by the German Fraunhofer Institute of Solar Systems authoritative certification reportThe company has achieved 31.8% conversion efficiency of crystalline silicon-perovskite laminated battery on commercial grade suede CZ silicon wafer.
This efficiency has created the record of the top three in the world and the first in China.
Previously, the international authoritative certification efficiency of laminated batteries developed by his team exceeded 25.7% and 29.55% in 2021 and 2022 respectively, representing the highest level in the field of battery technology in China.
It is understood that the principle of the laminated battery is that the broadband gap top battery absorbs high energy photons, and the narrow band gap bottom battery improves photon utilization. The cooperation of the two can break through the theoretical efficiency limit of the single junction battery, and the theoretical conversion efficiency is as high as 40%. Therefore, the conversion efficiency can break through the traditional ceiling.
And the basic crystal silicon technology is mature, and the industry progress is faster than perovskite / CIGS laminated battery and perovskite laminated battery.
Zhu Gongshan, chairman of Xiexin Group, said earlier thatAt the end of March this year, the cumulative installed capacity of photovoltaic surpassed hydropower to become the new energy & ldquo; leader & rdquo;, the second largest power supply in the country.
At the global level, photovoltaic and other new energy is also & ldquo; scenery is unique. Rdquo;, expects that the new installed capacity of photovoltaic in the world this year will be around 350GW, and the cumulative installed capacity next year is likely to exceed that of hydropower, surpass natural gas in 2026, and surpass coal to become the largest energy source in 2027.
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