Enabling "lithium-free" manufacturing of pure lithium metal solid-state batteries through in situ plating.

ABSTRACT: The coupling of solid-state electrolytes with a Li-metal anode and state-of-the-art (SOA) cathode materials is a promising path to develop inherently safe batteries with high energy density (>1000 Wh L^-1). However, integrating metallic Li with solid-electrolytes using scalable processes is not only challenging, but also adds extraneous volume since SOA cathodes are fully lithiated. Here we show the potential for "Li-free" battery manufacturing using the Li₇La₃Zr₂O₁₂ (LLZO) electrolyte. We demonstrate that Li-metal anodes >20 μm can be electroplated onto a current collector in situ without LLZO degradation and we propose a model to relate electrochemical and nucleation behavior. A full cell consisting of in situ formed Li, LLZO, and NCA

SUBMITTER: Wang MJ 

PROVIDER: S-EPMC7567811 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature