Martin Ihrig, Enkhtsetseg Dashjav, Philipp Odenwald, Christian Dellen, Daniel Grüner, Jürgen Peter Gross, Thi Tuyet Hanh Nguyen, Yu-Hsing Lin, Walter Sebastian Scheld, Changhee Lee, Ruth Schwaiger, Abdelfattah Mahmoud, Jürgen Malzbender, Olivier Guillon, Sven Uhlenbruck, Martin Finsterbusch, Frank Tietz, Hsisheng Teng, Dina Fattakhova-Rohlfing
The phosphate lithium-ion conductor Li1.5 Al0.5 Ti1.5 (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...
March 31, 2024: ACS Applied Materials & Interfaces