China has made important breakthroughs in the research and development of perovskite batteries. The team of Prof. Han Liyuan of Shanghai Jiaotong University teamed up with Suzhou Liyuan New Energy Technology Co., Ltd. to develop the energy conversion efficiency of an area of ​​36 square centimeters perovskite solar module to exceed 12%.
This achievement was published in the solar energy efficiency record form published by the authoritative magazine on photovoltaics, and it has been certified by the Japan Institute of Industrial Technology, an authoritative international certification body.
Because of its many advantages, such as low production costs, perovskite solar cells are regarded as one of the most promising new energy batteries for replacing traditional fossil fuels.
According to reports, Professor Han Liyuan’s team replaced the laboratory spin-coating process with printing methods, making it possible to make large areas evenly. While improving the effective area of ​​the battery through the high-precision integrated module design, combined with the improvement of the material formula, the repeatability and reliability of the battery pack production efficiency are ensured.
Dr. Chen Han of the Solar Energy Conversion Materials Research Center at Shanghai Jiaotong University said that the above research has overcome the technical bottleneck of large-area perovskite battery packs and is of great significance in promoting the large-scale industrialization process.
Professor Ma Xinsheng, director of the National Engineering Research Center for Ultrafine Powder, said that perovskite thin-film batteries can get rid of dependence on the environment and high-cost raw materials compared with traditional thin-film batteries, and greatly reduce operational difficulty and equipment costs. Its industrialization prospect is good, and it is expected to break the current monopoly of silicon solar cells.
As the most widely used new energy battery on the market today, silicon solar cells account for about 90% of the market share of photovoltaic modules. At the same time as the production cost has dropped drastically, the efficiency of the crystalline silicon battery pack has also begun to enter a “bottleneck periodâ€, which makes it more difficult to reduce costs and increase efficiency.
Under this background, perovskite solar cells with low production costs, simple raw materials and processes, and green production processes have begun to gain more and more attention.
In recent years, a large amount of science and technology and industrial capital have entered the field of perovskite solar cells one after another, driving the continuous improvement of their photoelectric conversion efficiency. However, the current research and development of perovskite cells are mostly 1 square centimeters or less, and the technical challenges faced by large-area high-efficiency components have become the main obstacles for them to move out of the laboratory to large-scale production.
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