Progress toward a more powerful lithium-air battery - lithium air battery

A new chemical that can power lithium.
Long air battery
Long-standing technical hurdles have led to a product that could one day be strong enough to replace auto gasoline, researchers said on Thursday.
Rechargeable batteries have been around for decades. -the lithium-
Ion batteries powered by many mobile devices will mark the 25 th anniversary next year ---
But it turns out that it is difficult to take this technology to the level of power it provides for cars.
The researchers spent several years working on a battery called lithium. Air or lithium
Oxygen can provide 10 times the power compared to gasoline, and there may be enough energy density, but these are also plagued by practical problems.
Although the Ultimate Lithium
Researchers at the University of Cambridge say air batteries have at least a decade left, and they have obtained a patent for a technology that has overcome some of the major obstacles.
Claire Gray, a professor of chemistry and senior writer at the University of Cambridge, said that her team's "significant achievements" have been moving towards large capacity, "In fact, we have reduced the efficiency to the number of competing with the current lithium --
She told reporters.
Since the technology is still in the laboratory stage, it is not possible to directly compare it with the technology currently available, she said.
But the latest approach has shown up to 93% energy efficiency, and uses lithium hydroxide (LiOH) instead of peroxide lithium (Li2O2) by relying on chemicals that are very different from previous attempts ).
"The presenter relies on a highly porous" flowing "carbon electrode made of graphene (including-atom-
"Thick sheet carbon atoms) and additives change the chemical reaction in the battery to make it more stable and efficient," a statement from the University of Cambridge said . ".
The result is another step towards a more practical, higher level road.
The power battery, Gray said.
"We are excited about the chemical reaction, but, we still need to do a lot of work, especially to understand the mechanism of this chemical reaction, optimize it, and try to make it closer to a higher rate system.
"This paper is published in the American journal Science.