Abstract

Using lithium metal as the anode in high-energy-density cells remains a highly pursued goal of the battery community, but practical use currently remains out of reach. Described recently in Nano Letters and Science, two teams led by Shirley Meng and Yi Cui, respectively, have developed new capabilities to image cycled lithium metal anodes using cryo-electron microscopy to gain valuable atomic-scale insights. Additionally, in this issue of Joule, Ji-Guang Zhang, Wu Xu, and colleagues characterize the degradation incurred in practical scenarios with high-capacity utilization of lithium metal.

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