The photovoltaic conversion efficiency of solar cells has exceeded 15%, and lithium batteries can efficiently discharge at minus 50 degrees Celsius, verifying the memory storage function of the semiconductor "star material" gallium oxide... Recently, China has made frequent achievements in the field of new materials, achieving technological breakthroughs in various key materials. These new materials are widely used in important industries such as new energy, healthcare, aerospace, and high-end manufacturing. They are of great significance for promoting industrial upgrading and ensuring the safety of the industrial chain, and also demonstrate China's independent innovation strength in the field of new materials. Industry experts believe that the recent breakthroughs in new material technologies have accurately addressed the long-term constraints on industrial development. In the field of new energy photovoltaic, the research team of the Chinese Academy of Sciences Qingdao Energy Institute overcame the bottleneck of "uncontrollable metal ion migration" of copper zinc tin sulfur selenium solar cells, and guided the orderly arrangement of ions through a new interface phase, making the photoelectric conversion efficiency exceed 15%. In the field of semiconductors, Beijing University of Posts and Telecommunications, in collaboration with multiple institutions, has experimentally verified the room temperature intrinsic ferroelectricity of mainstream wide bandgap semiconductor gallium oxide, solving the scientific challenge of endowing gallium oxide with memory storage function (i.e. ferroelectricity) and opening up a new path for future semiconductor technology. In the field of new energy storage, a team from Nankai University and Shanghai Space Power Research Institute has broken the dynamic constraints of traditional lithium battery electrolysis and liquid oxygen coordination, designed and synthesized a new electrolyte system using fluorinated hydrocarbon solvents, and successfully developed a lithium metal battery with an energy density of up to 700 watt hours per kilogram at room temperature. In extremely cold environments of minus 50 degrees Celsius, it can still release nearly 400 watt hours per kilogram of high energy. In addition, China has continued to make breakthroughs in the field of flexible organic optoelectronic materials. Professor Ye Long from the School of Materials Science and Engineering at Tianjin University introduced that flexible organic optoelectronic materials are light, thin, and soft, and can also be manufactured at low cost using a printing like method. In recent years, Chinese research teams have made breakthroughs in the difficult problem of balancing optoelectronic performance and tensile performance: while maintaining high energy output, materials are less likely to be pulled apart, and devices can still work stably after repeated and significant stretching. From the perspective of application value, these new materials and related technologies are widely used in national strategic industries such as new energy, aerospace, and high-end manufacturing. Copper zinc tin sulfide materials have the advantages of abundant element reserves, low cost, high stability, and non toxicity, and have become a new generation of materials that have attracted much attention in the photovoltaic field; Low temperature resistant and high specific energy lithium batteries have expanded the application boundaries of new energy storage, providing energy support for special scenarios such as extreme cold regions and aerospace; The breakthrough of gallium oxide semiconductor provides a new material foundation and design ideas for the multifunctional integration of information devices in high-power and extreme environments; Flexible organic optoelectronic materials are important materials for wearable devices, electronic skins, flexible sensors, and portable energy sources. The continuous breakthroughs in flexible organic optoelectronic materials will drive flexible electronics from the laboratory to large-scale applications in the future, supporting the upgrading of emerging industries such as health monitoring, intelligent terminals, and new energy. ”Ye Long believes that breakthroughs in this field will help fill the gaps in key materials, enhance the resilience and independent controllability of the industrial and supply chains, and provide important support for the development of strategic emerging industries. Chen Jun, an academician of the CAS Member and the executive vice president of Nankai University, also said that the high specific energy battery based on the new electrolyte has broad application potential in new energy vehicles, intelligent robots, low altitude economy, extremely cold regions, aerospace and other fields. Industry experts point out that new materials are the foundation of strategic emerging industries and the core support for industrial upgrading. Recently, a series of breakthroughs in the field of new materials in China have demonstrated the innovative vitality and development resilience of the new materials industry. In the future, with the continuous increase of scientific research investment and the continuous improvement of innovation system in China, more breakthroughs will continue to emerge in the field of new materials, leading industrial upgrading with innovation synergy and providing more solid material guarantees for the high-quality development of China's economy and society. (New Society)