New type high-energy magnesium battery has more energy can be widely used renewable energy systems

Recently, the journal Joule first reported by the American university of Houston and magnesium Toyota institute of research and development of new type high energy battery, not containing organic chlorine ion electrolyte and cathode improves the energy density and stability of the battery, its potential application range is very wide: from electric cars to the renewable energy system of storage battery can be used.

the researchers using organic electrodes with limited electrolyte, this change makes the battery storage and discharge than early magnesium batteries have more energy. Unlike traditional electrolytes, used in the study of magnesium chloride electrolyte is a new battery to another change. Team of no organic chloride electrolyte test quinone polymer cathode and magnesium anode, metal output power up to 243 kilowatt-hours per kilogram according to a report, power measurement for 3 per kilogram. 4 kw, the battery in a 2500 - cycle test stability.

scientists have spent decades looking for magnesium high energy battery, hoping to use natural advantages of magnesium relative to lithium ─ ─ a more common and cheaper, and its internal structure, Known as dendritic crystal) Not easily broken, which means that compared with explosive burning lithium battery, magnesium battery is safer. However, magnesium battery only when can store and release a lot of energy with business competitiveness, the researchers said, previous cathode and electrolyte materials has been a stumbling block. Cathode is flowing in the battery electrode and the electrolyte is ionic charge flow between cathode and anode of the medium.

in the report, the researchers wrote & other; Through organic carbonyl polymer cathode and electrolyte with magnesium storage ability of the optimal combination, we can show in magnesium battery is a rare high proportion of the energy, power and cycle stability. ” So far, the best in magnesium battery cathode is the Chevrolet molybdenum sulfide, about 20 years ago, no ability to compete with lithium batteries. Future research will focus on further improve the specific capacity and voltage of the battery, in order to compete with lithium battery in the future.