Strong and brittle lithium dendrites. - Ai, Qing; Zhang, Boyu; Liu, Xing; Shin, Bongki; Guo, Wenhua; Gao, Guanhui; Zhao, Lihong; Weng, Xintong; Fang, Qiyi; Zhai, Tianshu; Steinbach, Doug; Zhu, Yifan; et al. (Science, 2026)