Realistic portraits of squishy layer that’s key to battery performance
Lithium metal batteries could store much more charge in a given space than today’s lithium-ion batteries, and the race is on to develop them for next-gen electric vehicles, electronics and other uses. But one of the hurdles that stand in the way is a silent battle between two of the battery’s parts. The liquid between […]
Scientists discover how oxygen loss saps a lithium-ion battery’s voltage: Measuring the process in unprecedented detail gives them clues to how to minimize the problem and protect battery performance
When lithium ions flow in and out of a battery electrode during charging and discharging, a tiny bit of oxygen seeps out and the battery’s voltage — a measure of how much energy it delivers — fades an equally tiny bit. The losses mount over time, and can eventually sap the battery’s energy storage capacity […]