Enabling High-Performance Hybrid Solid-State Batteries by Improving the Microstructure of Free-Standing LATP/LFP Composite Cathodes.

ABSTRACT: The phosphate lithium-ion conductor Li_1.5Al_0.5Ti_1.5(PO₄)₃ (LATP) is an economically attractive solid electrolyte for the fabrication of safe and robust solid-state batteries, but high sintering temperatures pose a material engineering challenge for the fabrication of cell components. In particular, the high surface roughness of composite cathodes resulting from enhanced crystal growth is detrimental to their integration into cells with practical energy density. In this work, we demonstrate that efficient free-standing ceramic cathodes of LATP and LiFePO₄ (LFP) can be produced by using a scalable tape casting process. This is achieved by adding 5 wt % of Li₂WO₄ (LWO) to the casting slurry and optimizing

SUBMITTER: Ihrig M 

PROVIDER: S-EPMC11009911 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature