Scientists hail new battery with 4 times energy density of lithium-ion
New battery developed by researchers in US could provide "thousand mile" range for EVs and open up new possibilities for long-haul transport and electric planes.
Scientists and engineers at US-based technology research centre Argonne say they have developed a new battery which they say has four times the energy density of lithium-ion batteries.
The researchers from the Illinois Institute of Technology (IIT) and U.S. Department of Energy’s (DOE) Argonne National Laboratory say that the new battery could power an EV for more than a thousand miles (1600 km) and could also someday be used to power domestic planes and long-haul trucks.
“The main new component in this lithium-air battery is a solid electrolyte instead of the usual liquid variety,” Argonne says in a press release.
“The battery chemistry with the solid electrolyte can potentially boost the energy density by as much as four times above lithium-ion batteries, which translates into longer driving range.”
More electrons stored means higher energy density
Argonne Distinguished Fellow Larry Curtiss says the lithium-air battery has the highest projected energy density of any battery technology being considered for the next generation of batteries beyond lithium-ion.
“For over a decade, scientists at Argonne and elsewhere have been working overtime to develop a lithium battery that makes use of the oxygen in air,” Curtiss said.
Argonne says that in past lithium-air designs, the lithium in a lithium metal anode moves through a liquid electrolyte to combine with oxygen during the discharge, yielding lithium peroxide (Li2O2) or superoxide (LiO2) at the cathode.
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