lithium-oxygen
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Lithium-oxygen battery promises lighter electric cars
Lithium-air batteries are supposed to lead to lighter, longer-ranged electric cars thanks to their high power-to-weight output, but they have some showstopping flaws: they not only degrade rapidly, but waste a lot of energy input as heat. Neither is exactly ideal in a vehicle that's expected to last you several years and charge quickly. Scientists at MIT, Argonne National Laboratory and Peking University might have found a better way, though. They've engineered a lithium-oxygen battery that offers the light weight of lithium-air without its drawbacks.
