On December 24, it was hosted by China Science and Technology Association, China Association for Science and Technology Science and Technology Communication Center, Zhongguancun industrial technology alliance Federation, the special release activity of "major scientific and technological achievements conference-era of new energy storage" hosted by Zhongguancun energy storage industry technology alliance was successfully held in the National Science and Technology Communication Center.

It is understood that three technologies were released at the meeting:

100 MW advanced compressed air energy storage technology. The compressed air energy storage technology developed by the Institute of Engineering Thermophysics of the Chinese Academy of Sciences creatively puts forward a new principle of advanced compressed air energy storage technology, which can simultaneously solve the traditional compressed air energy storage dependence on large gas storage chambers, relying on fossil fuels and low system efficiency are three major technical bottlenecks. Reveal compressed air for the first time energy Storage System process coupling and energy transfer mechanism; For the first time, it reveals the characteristics and mechanism of compressed air energy storage system limiting flow, heat transfer and heat storage in space scale; for the first time, it reveals the development law of flow and loss inside compressor and turbine of compressed air energy storage system and the coupling mechanism of flow and heat transfer. Breaking through the full set of core key technologies of the advanced compressed air energy storage system of 1 - 300MW, breaking the full three-dimensional design technology of wide-load compressor and high-load expander, the enhanced heat transfer technology of supercritical air and cold storage (heat) materials, system and equipment variable working conditions and control technology.

New generation all-vanadium redox flow battery energy storage technology. The project team of Dalian Institute of Chemical Physics, Chinese Academy of Sciences has carried out technical research around the key materials, stack and system integration of the new generation of all-vanadium redox flow battery, solving the key scientific and technical problems existing in the industrialization process of liquid flow batteries, we have achieved a series of major technological inventions and innovations. Breaking through the design, preparation and scale-up technology of key materials such as highly selective ion conducting membrane and high stability electrolyte, realizing the scale and full localization of key materials; DevelopmentThe new generation of high-power density liquid flow battery stack breaks through the automation and large-scale manufacturing process of the stack, realizes large-scale manufacturing, and forms a new generation of large-scale all-vanadium redox flow battery energy storage technology with complete independent intellectual property rights. In recent years, more than 30 commercial demonstration projects including the world's largest all-vanadium redox flow battery national energy storage peak regulation power station have been implemented at home and abroad to realize industrialization.

100 MW sodium ion battery energy storage technology. Institute of Physics, Chinese Academy of Sciences. Through years of technology research and development, it has made breakthrough progress in the field of sodium ion batteries, improving the consistency of energy density and cell performance, and making sodium ion batteries have the characteristics of high energy density, high efficiency and low cost. Innovative research and development of air-stable low-cost copper-based layered oxide cathode materials and amorphous carbon anode materials, these materials have high initial efficiency and excellent specific capacity characteristics. The battery performance is further improved through the development of adaptive electrolyte and the optimization of pole piece and cell design. Through the transformation platform, the Physical Institute has successfully built GWh-level sodium ion battery production line, and its comprehensive performance and industrialization process are in the international leading position.

According to the understanding of Polaris energy storage network, the "100 MWh sodium ion battery energy storage technology" project relies on the national key research and development plan and is led by the Institute of Physics of Chinese Academy of Sciences. Units such as Zhongke Hai Na and Guangxi Power Grid undertake the subject. The successful holding of this conference is not only an affirmation of the continuous exploration and innovation of the project team, but also an important milestone that China continues to lead in the field of new energy storage technology.