An efficient upgraded version of high-powered magnesium batteries has been recently developed by the scientists of the Toyota Research Institute of America and the University of Houston, which is more effective and can be used in various applications including electromotive sector, power storage for renewable energy industries, and many more.
Last week, in Joules, the developed battery has been reported as functional with an installed organic electrode instead of the inorganic electrode, and limited electrolyte. This modification in electrode type by the researchers allows the battery to store and liberate extreme power as compared to pre-established magnesium batteries. Along with the electrode modification, researchers also changed the chloride-containing electrolyte used in magnesium batteries with chloride-free electrolyte, which was the basis of this discovery.
Yan Yao—principal investigator and associate professor at the University of Houston—said that the researchers were working to understand the impact of universally used electrolyte component, chloride; and were able to identify that chloride leads to decrease in the performance of commonly used electrolytes.
Yao, along with his team observed the reaction between a magnesium anode and organic quinone polymer cathodes by using chloride-free electrolyte. They measured the power of the organic-based battery, which reached up to 3.4 kilowatts/hour and the current released up to 243 watthours/kg, remaining stable through 2,500 cycles.
Scientists have been trying to transform lithium-ion batteries by replacing lithium with magnesium due to its easy availability, cost-effectiveness, and no dendrites formation in the batteries unlike lithium, which may cause lithium batteries to catch fire or explode.
However, the major limitation of using magnesium anode leads to little storage and discharge of the current, due to the nature of previously used electrolyte and cathode.
Researchers said that by using a specific combination of magnesium ion maintaining electrolytes and organic carbonyl polymer cathodes, the specific energy, stability, and power of the magnesium batteries can be improved drastically.