@article {36260,
	title = {A LaCl3-based lithium superionic conductor compatible with lithium metal},
	journal = {Nature},
	volume = {616},
	year = {2023},
	pages = {77-83},
	abstract = {Inorganic superionic conductors possess high ionic conductivity and excellent thermal stability but their poor interfacial compatibility with lithium metal electrodes precludes application in all-solid-state lithium metal batteries. Here we report a LaCl3-based lithium superionic conductor possessing excellent interfacial compatibility with lithium metal electrodes. In contrast to a Li3MCl6 (M = Y, In, Sc and Ho) electrolyte lattice, the UCl3-type LaCl3 lattice has large, one-dimensional channels for rapid Li+ conduction, interconnected by La vacancies via Ta doping and resulting in a three-dimensional Li+ migration network. The optimized Li0.388Ta0.238La0.475Cl3 electrolyte exhibits Li+ conductivity of 3.02 mS cm-1 at 30 {\textdegree}C and a low activation energy of 0.197 eV. It also generates a gradient interfacial passivation layer to stabilize the Li metal electrode for long-term cycling of a Li{\textendash}Li symmetric cell (1 mAh cm-2) for more than 5,000 h. When directly coupled with an uncoated LiNi0.5Co0.2Mn0.3O2 cathode and bare Li metal anode, the Li0.388Ta0.238La0.475Cl3 electrolyte enables a solid battery to run for more than 100 cycles with a cutoff voltage of 4.35 V and areal capacity of more than 1 mAh cm-2. We also demonstrate rapid Li+ conduction in lanthanide metal chlorides (LnCl3; Ln = La, Ce, Nd, Sm and Gd), suggesting that the LnCl3 solid electrolyte system could provide further developments in conductivity and utility.},
	url = {https://www.nature.com/articles/s41586-023-05899-8},
	author = {Yichen Yin and Jingtian Yang and Jinda Luo and Gongxun Lu and Zhongyuan Huang and Jianping Wang and Pai Li and Feng Li and Yechao Wu and Te Tian and Yufeng Meng and Hongsheng Mo and Yonghui Song and Yang, Junnan and Lizhe Feng and Ma, Tao and Wen Wen and Ke Gong and Linjun Wang and Huanxin Ju and Yinguo Xiao and Zhenyu Li and Xinyong Tao and Hongbin Yao}
}
