On-surface lithium donor reaction enables decarbonated lithium garnets and compatible interfaces within cathodes.

ABSTRACT: Lithium garnets have been widely studied as promising electrolytes that could enable the next-generation all-solid-state lithium batteries. However, upon exposure to atmospheric moisture and carbon dioxide, insulating lithium carbonate forms on the surface and deteriorates the interfaces within electrodes. Here, we report a scalable solid sintering method, defined by lithium donor reaction that allows for complete decarbonation of Li_6.4La₃Zr_1.4Ta_0.6O₁₂ (LLZTO) and yields an active LiCoO₂ layer for each garnet particle. The obtained LiCoO₂ coated garnets composite is stable against air without any Li₂CO₃. Once working in a solid-state lithium battery, the LiCoO₂-LLZTO@LiCoO₂

SUBMITTER: Yang YN 

PROVIDER: S-EPMC7608658 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature