Lithium Metal Dendrite (TEM/Cryo-EM) (IMAGE) DOE/SLAC National Accelerator Laboratory Caption Left: In this room-temperature TEM image, exposure to air has corroded a lithium metal dendrite and the electron beam has melted holes in it. Right: In contrast, a cryo-EM image of a dendrite shows that freezing has preserved its original state, revealing that it's a crystalline nanowire with well-defined facets. Credit Y. Li et al., <i>Science</i> Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.