Although we hear news about 'Battery Breakthroughs' every 3 to 5 years, lithium-ion batteries are still the most widely used and best performing overall choice, but recently MIT Labs and Argonne National Laboratory Has developed a new solid state material that appears to be an excellent conductor of magnesium ions and is expected to be used to create safer and more efficient batteries Lithium batteries are being used to power cell phones and electric vehicles In all fields, although this metal material is well served, there is still room for improvement in terms of efficiency and price.
Through experiments at NMR laboratories, researchers have demonstrated that the new material is an efficient conductor of magnesium ions (via: Argonne National Laboratory)
In contrast, magnesium has a higher energy density and more reserves in nature, so it is promising to make cheaper and easier-to-manufacture batteries, but to use magnesium in batteries as a metal Electrolytes this stumbling block.
While responsible for transferring charge between the cell's cathode and anode, both Toyota and KIT have recently been focusing on developing better liquid electrolytes, but both tend to corrode other parts of the cell, so we think about it and why not try it out Type of electrolyte it?
According to Gerbrand Ceder, co-author of the paper, magnesium-based batteries are a completely new technology that does not have any liquid electrolytes, so we came to the conclusion that why not use a solid electrolyte instead?
The good news is that they have really developed a new material called magnesium scandium selenide spinel, which allows magnesium ions to penetrate easily and is even electrically conductive The solid electrolyte used in some lithium batteries.
The first theoretical studies had predicted good results and, for verification, the team conducted NMR spectroscopy experiments that could detect if magnesium (or lithium) ions penetrated the material, but because of the complexity of new materials Lack of reference, making it difficult for them to interpret the data results.
Research Pieremanuele Canepa said: In addition to the traditional electrochemical characterization, these findings only by combining a variety of technical methods to make it through (Argonne laboratory solid-state NMR and simultaneous measurement).
Even so, there are still some issues that need to be addressed before using this magnesium-based new material to make a real battery, for example, there is still a small amount of electron leakage that needs to be improved by the electron mobility, but its safety after commercial use Sex or more than traditional liquid electrolyte batteries a lot higher.
Details of the study have been published in a recent issue of Nature Communications.
