Zhang Huamin, a researcher of the Dalian Institute of Chemicals, Chinese Academy of Sciences, and Li Xianfeng led the team to make new progress in the research of non-fluorine porous ion-conducting membranes for flow batteries. The crosslinked network structure was introduced into the pore structure of non-fluorinated porous ion conducting membranes, which greatly improved the selectivity and stability of non-fluorinated porous ion conducting membranes in the flow cell operating environment. The membrane material was developed in the flow cell environment. Under continuous operation over 6000 cycles, stable performance. Related results were recently published online in Advanced Functional Materials.
According to the Chinese Journal of February 25th, in order to solve the contradiction between non-fluorine porous ion conductive membrane selectivity and conductivity, and further improve the performance of non-fluorine porous ion conductive membrane, the team also successfully developed high selection through structural design. Sex, high conductivity, low cost non-fluorine porous ion conducting membrane. The single-cell assembled with the membrane material has an energy efficiency of more than 90% under the charge and discharge conditions of 80 mA/cm2. This is the highest performance membrane material reported so far, and has undergone over 13,000 charge-discharge cycles, and the battery performance has not been significantly attenuated. , showing excellent stability. The related results were published in the “Energy Environment Science†as a cover article. The reviewers of the journals commented that this is a pioneering work and has long-term significance for the development of all vanadium redox flow batteries.
According to reports, according to previous media reports, after a one-time charging of vanadium batteries, battery life of up to 1,000 kilometers, charging time is only 3-5 minutes, known as the "perfect battery." Researchers said that in 2017, the potential market size of vanadium batteries will be around 1100 billion yuan. The research, development, and application of vanadium batteries are expected to replace the historically trillion-class new blue ocean industry of lithium batteries. A shares of Panzhihua Steel Vanadium and Titanium, related research related to vanadium batteries.
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