Efficient, safe, and reliable power batteries are the bottleneck restricting the new near-zero-emission automotive industry, and they are also one of the "shortcomings" of new energy vehicles. At present, the biggest potential safety hazard of power batteries is the thermal runaway of batteries. The Qingdao Institute of Energy Energy and Process Technology, Qingdao Institute of Bioenergy and Process Technology, Chinese Academy of Sciences has achieved a phased development in the development of high-safety power battery polymer electrolyte material systems to solve this safety issue. Progress, and is rapidly advancing its industrialization process. Existing lithium-ion battery liquid electrolyte systems cannot meet the high energy, high power and safety requirements of the power battery. The R&D team of Qingdao Energy Storage Industry Technology Research Institute put forward the idea of ​​“Rigid and Flexible†research and development, and developed a series of new polymer electrolyte systems, which solved the above bottleneck problems and greatly improved the safety performance. "Rigid and flexible" is the use of "rigid" skeleton materials, such as polyimide, aramid, polyarylsulfoneamide, glass fiber and cellulose, to improve the mechanical properties and dimensional thermal stability of the battery. Uses "flexible" ion transport materials such as polyethylene oxide (PEO), polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP), polymethyl methacrylate (PMMA), cyanoacrylates, and poly. Propylene carbonate (PPC) gives excellent ion conductivity and interfacial stability, and achieves a multi-win effect by “combining†two or more materials and achieves a significant increase in overall performance, thereby meeting the requirements of power batteries. . Qingdao Energy Storage Research Institute and Zhongtian Science and Technology Co., Ltd. cooperate to develop industrial technologies for high-capacity and high-safety power or single-cell batteries for energy storage (energy density up to 300Wh/kg), and promote the industry of high-energy and high-safety all-solid-state power batteries. Change. At the same time, the R&D team applied this design concept to actively explore the development of a new generation of ultra-high energy density lithium air secondary batteries, and there have been encouraging developments. (□ Zhang Hong) Tea Stick Infuser,Best Loose Leaf Tea Infuser,Loose Leaf Tea Steeper,Stainless Steel Tea Infuser With Chain YANGJIANG VOSSEN INDUSTRY AND TRADE CO.,LTD , https://www.cnvossen.com