Scientists at Oregon State University have discovered that a chemical magnetic float level gauge, first reported 200 years ago, is expected to completely change the energy storage used in high-power applications such as power grids or vehicles.The team led by Xiulei (David) Ji of the OSU School of Science, together with collaborators from Argonne National Laboratory, University of California, Riverside, and Oak Ridge National Laboratory, was the first to prove that proliferation may not be necessary. Transports ionic charges in the hydrated solid structure of the battery electrodes.The results of the study were published on “Nature Energy” on January 27, 2019.To afford the energy density of an affordable battery and the power of the magnetic float level gauge with excellent cycle life is a big challenge, said Faraday Electrode, said Yun Lu, associate professor of chemistry. So far, most attention has been focused on metal ions-starting with lithium and continuing to the periodic table.However, the cooperative team examined the individual protons of hydrogen. The team also reviewed the theory of charge transport in electrolytes proposed by Theodor von Grotthuss, a Lithuanian chemist born in Germany in 1806.Von Grotthuss was only 20 years old. He lived in a politically turbulent area when he published a memoir about water and a magnetic float level gauge dissolved by electricity in a French scientific journal.According to Wu, it works like this: When a hydrogen atom bridging two water molecules transfers its allegiance from one molecule to another, the charge is conducted.The cooperative vibration of the hydrogen bond and the hydrogen-oxygen covalent bond almost cuts the proton from the end of the water molecule chain and the other end of the water chain where there is no mass transfer, and joins it.According to Ji, the molecular relay competition is at the core of high-efficiency charging pipelines.Ji said: This is its beauty. If the magnetic float level gauge is installed in the battery electrode, the protons do not have to pass through the narrow orifice in the crystal structure. If we design materials for the purpose of promoting this conduction, then this pipeline is ready. We have built the Magic Proton Highway as part of the grid.Ji, Wu and colleagues proved in their research that the Prussian blue analogue Turnbull blue electrode has extremely high power performance, this dye is called in the dye industry. The unique continuous lattice water network within the electrode lattice demonstrates the greatness promised by Grotes’ magnetic float level gauge.Ji said: Computational scientists have made tremendous progress in understanding how proton jumping occurs in water. But Grotes’ theory has never been explored to make detailed use of energy storage, especially in well-defined redox reactions, whose purpose is to achieve the effects of this theory.Although Ji is very excited about the results of this study, he cautioned that more work needs to be done to achieve ultra-fast charging and discharging of batteries that are practical for grid energy storage or transportation.This research was supported by the National Science Foundation and the U.S. Department of Energy.
Post time: 21-09-21