Recently, the research team led by Zhang Huamin and Li Xianfeng, researchers of the Department of Energy Storage Technology (DNL17) of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, have made new progress in the research on the mechanism of film formation and membrane microstructure regulation of non-fluorine porous ion-conducting membranes in flow batteries. The membrane selectivity and ion conductivity are greatly improved, and the flow cell performance is improved. The results of this study are published online in Energy & Environmental Science DOI: 10.1039/C6EE01371F.
The research team originally proposed the â€œIon Sieving Conductionâ€ mechanism without ion exchange groups, achieved a series of scientific and technological progress, and published many high-level research papers (Angew.Chem.Int.Ed., 55 , 2016, 3058-3062;Energy & Environmental Science,2016,9,441-447;Adv.Funct.Mater.,2016,26,210-218;Adv.Funct.Mater.,2015,25,2583;Energy & Environmental Science, 2013, 6, 776; Energy & Environmental Science, 2012, 5, 6299; Energy & Environmental Science, 2011, 4, 1147); However, the film forming mechanism and pore size, distribution, porosity, etc. of the porous ion conductive membrane Microstructure regulation has always been a difficult research point. This study has systematically studied the effect of solvent treatment process on the pore size, distribution, and penetration of porous ion-conducting membranes and the regulatory mechanism, and invented an effective pore size, pore size distribution, and penetration of porous ion-conducting membranes. By the method of regulation, porous ion conductive membranes with high void ratio, uniform pore size distribution, and good penetration are successfully prepared, thereby further improving the selectivity and conductivity of non-fluorine porous ion conductive membranes. The single cell assembled by this film has an energy efficiency of more than 90% at a charge and discharge condition of 80 mA/cm2. This work has an important guiding role in the structural design and preparation of high-performance porous ion-conducting membranes.
The research was funded by related projects of the Young Talents Plan of the Central Organization Department, the National Natural Science Foundation of China, the Young Scientists of the Chinese Academy of Sciences, and the Collaborative Innovation Center for Energy Materials Chemistry of the Ministry of Education.
This column mainly shows the parts of the crawler Excavator Final Drive.The Final Drive includes two parts: a Travel Motor and a Travel Gearbox.
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