Magnesium ion battery technology may have a breakthrough

Although we regularly can hear about news of "battery technological breakthrough ", lithium ion battery still is currently the most widely used and the best choice with integrated performance. However, MIT bloggers in the laboratory and a research team of Argonne national laboratory have developed a new type of solid materials.

It seems to be a perfect conductor, magnesium ions is expected to be used to create more secure and efficient battery. The lithium battery are used to from mobile phones to various fields such as electric cars, although the metal materials service is very good, but in terms of efficiency and price still has great room for improvement.

Byspecial magnetic resonance (NMR) laboratory experiments, the researchers proved that the new material is a kind of efficient magnesium ion conductor.

For comparison, magnesium of higher energy density, in the nature reserves have more, and hopefully to build cheaper and easier to produce batteries. However, to the use of magnesium in battery this metal, still have to move beyond the electrolyte the stumbling block.

It is responsible for between the cathode and anode of the battery charge, although the recent Toyota and KIT are focused on developing better liquid electrolyte, but they all have a tendency to other parts of the corrosion cell. So we on second thought, why not try the other types of electrolyte?

Said co-author gerbrand ceder magnesium matrix cell is a new technology, it has no any useful liquid electrolyte. So we thought, why not switch to a solid state electrolyte?

The good news is that they really developed a called "selenide scandium magnesia spinel" (magnesium scandium selenides pinel) new material. The solid electrolyte allows magnesium ions penetrate easily, and its electrical conductivity and even rival some lithium electricity use of solid electrolyte in the pool.

Initial theoretical research has predicted good results, in order to verify that the team on thespecial magnetic resonance (NMR) spectroscopy experiment. This instrument can detect whether magnesium or lithium ion penetrating material, due to the complexity of some new materials and the lack of reference, however, lead to difficult to explain the results.

Research a Pieremanuele Canepa said: in addition to traditional electrochemical characterization, these findings can only sense combined with a variety of methods (argonne laboratory of solid statespecial magnetic resonance (NMR) and synchronous measurement).

Even so, in this kind of magnesium based new materials used to build the real battery before, there are still some problems need to be solved. Such as there is still a small amount of current electronic leak, it is necessary to improve the electron mobility. Solid-state batteries after commercial, however, its security is relatively much higher than that of traditional liquid electrolyte battery.

For details of the research, has published recently in nature communications (Nature Communications) journal.

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