Excitu solid electrolyte interfacial modification with chalcogenide for lithium metal anodes

摘要

The embodiments described herein generally relate to metal electrodes, more specifically lithium-containing anodes, high-performance electrochemical devices such as secondary batteries, including said lithium-containing electrodes, and methods of manufacturing the same. In one embodiment, an anode electrode structure is provided. The anode electrode structure comprises a current collector containing copper. The anode electrode structure further comprises a lithium metal film formed on the current collector. The anode electrode structure further comprises a solid electrolyte interface (SEI) membrane stack formed on the lithium metal membrane. The SEI film stack contains a chalcogenide film formed on a lithium metal film. In one embodiment, the SEI membrane stack further comprises a lithium oxide membrane formed on the chalcogenide membrane. In one embodiment, the SEI film stack further comprises a lithium carbonate film formed on the lithium oxide film. [Selection diagram] FIG. 7