A novel LaCl3-based oxychloride solid-state electrolyte enables fast Li-ion transport and is compatible with lithium metal

A novel LaCl 3 -based oxychloride with Zr 4+ and O 2− co-doping provides a smoother 1D channels for Li + within the LaCl 3 framework; an optimized sample is compatible with Li metal and its critical current density (CCD) is up to 7 mA cm −2 .