Chinese Academy of Sciences researcher Zhang Hua-ming and Li Xian-feng led the team to make new progress in the study of non-fluorinated porous ion-conducting membranes for flow batteries. In the study, the cross-linked network structure was introduced into the pore structure of non-fluorinated porous ion-conducting membrane, which greatly enhanced the selectivity and stability of non-fluorinated porous ion-conducting membrane in the operating environment of the flow battery. Under continuous operation more than 6,000 cycles, stable performance. Relevant results recently published online "Advanced Functional Materials."
It is reported that in order to solve the non-fluorine porous ion-conducting membrane selectivity and conductivity of the conflict, to further improve the non-fluorine porous ion-conducting membrane performance, the team also through the structural design, successfully developed a high selectivity, high conductivity, low cost Non-fluorinated porous ion-conducting membrane. The energy efficiency of cell assembled with membrane material is more than 90% under the condition of 80mA / cm2 charge and discharge, which is the highest performance membrane material reported so far. After more than 13,000 charge-discharge cycles, the cell performance has no obvious attenuation , Showing excellent stability. Relevant results as a cover article published in the "Energy and Environmental Science", journals reviewer commented that this is a pioneering work on the development of all-vanadium flow battery has a long-term significance.
It is reported that, according to previous media reports, vanadium batteries after a one-time charge, battery life up to 1,000 km, charging time only 3-5 minutes, known as the "perfect battery." The researchers said that in 2017, the potential market size of vanadium batteries will be 1.1 trillion yuan. Vanadium battery research and development and promotion of applications, is expected to become an alternative lithium historic trillion-level new blue ocean industry. A shares of Panzhihua vanadium and titanium, related to vanadium battery-related research.
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