The 2026 Zhongguancun Forum Annual Conference opened in Beijing today, and the “Top Ten Scientific Advances in China for 2025,” led by national ministries and commissions, was officially announced. The “High-Efficiency and Stable Flexible Perovskite–Crystalline Silicon Tandem Solar Cell Technology,” jointly developed by LONGi Green Energy Technology Co., Ltd. and Soochow University, was among those recognized, marking a major breakthrough for China in the field of next-generation photovoltaic core technologies. This is also one of the two major scientific advances from Shaanxi Province that have been shortlisted this time.

" one tight and one loose "double buffer layer structure. The porous layer can absorb and dissipate strain energy like a spring mattress, thereby alleviating mechanical stress; while the dense layer ensures efficient interfacial charge extraction and robust electrical contact. This “rigid-soft composite” nanoscale layered design equips flexible stacked batteries with a “durable armor.”

60 microns), certified by the US Renewable Energy Laboratory in laboratory size, with an efficiency of 33.4 percent, and an efficiency of 29.8 percent in full silicon wafer size, both setting world records for this type of device. Its power-to-weight ratio reaches as high as 1.77 W/g, offering a significant lightweighting advantage.