New Life For Lithium Oxygen Batteries

August 24, 2018 | NEWS BRIEF | Lithium-oxygen batteries have been heralded as a replacement for lithium-ion because they could, in theory, store 10 times more power. The only problem: They fall apart after just a handful of charging cycles, writes Science Magazine. But researchers have found that running them at high temperatures—along with a couple of other fixes—can push them to at least 150 cycles. Although they would be too hot to handle in phones, lithium-oxygen batteries the size of rail cars could one day underpin a green energy grid, storing excess wind and solar power and delivering it on demand.