Your browser doesn't support javascript.
loading
Direct Precursor Route for the Fabrication of LLZO Composite Cathodes for Solid-State Batteries.
Kiyek, Vivien; Schwab, Christian; Scheld, Walter Sebastian; Roitzheim, Christoph; Lindner, Adrian; Menesklou, Wolfgang; Finsterbusch, Martin; Fattakhova-Rohlfing, Dina; Guillon, Olivier.
Afiliación
  • Kiyek V; Institute of Energy Materials and Devices-Materials Synthesis and Processing (IMD-2), Forschungszentrum Jülich GmBH, 52425, Jülich, Germany.
  • Schwab C; Institute of Mineral Engineering, RWTH Aachen University, 52064, Aachen, Germany.
  • Scheld WS; Institute of Energy Materials and Devices-Materials Synthesis and Processing (IMD-2), Forschungszentrum Jülich GmBH, 52425, Jülich, Germany.
  • Roitzheim C; Institute of Energy Materials and Devices-Materials Synthesis and Processing (IMD-2), Forschungszentrum Jülich GmBH, 52425, Jülich, Germany.
  • Lindner A; Institute of Energy Materials and Devices-Materials Synthesis and Processing (IMD-2), Forschungszentrum Jülich GmBH, 52425, Jülich, Germany.
  • Menesklou W; Institute for Applied Materials-Electrochemical Technologies (IAM-ET), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany.
  • Finsterbusch M; Institute for Applied Materials-Electrochemical Technologies (IAM-ET), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany.
  • Fattakhova-Rohlfing D; Institute of Energy Materials and Devices-Materials Synthesis and Processing (IMD-2), Forschungszentrum Jülich GmBH, 52425, Jülich, Germany.
  • Guillon O; Helmholtz Institute Münster-Ionics in Energy Storage (IEK-12), 48149, Münster, Germany.
Adv Sci (Weinh) ; : e2404682, 2024 Sep 19.
Article en En | MEDLINE | ID: mdl-39297308
ABSTRACT
Solid-state batteries based on Li7La3Zr2O12 (LLZO) garnet electrolyte are a robust and safe alternative to conventional lithium-ion batteries. However, the large-scale implementation of ceramic composite cathodes is still challenging due to a complex multistep manufacturing process. A new one-step route for the direct synthesis of LLZO during the manufacturing of LLZO/LiCoO2 (LCO) composite cathodes based on cheap precursors and utilizing the industrially established tape casting process is presented. It is shown that Al, TaLLZO can be formed directly in the presence of LCO from metal oxide precursors (LiOH, La2O3, ZrO2, Al2O3, and Ta2O5) by heating to 1050 °C, eliminating the time- and energy-consuming synthesis of preformed LLZO powders. In addition, performance-optimized gradient microstructures can be produced by sequential casting of slurries with different compositions, resulting in dense and flat phase-pure cathodes without unwanted ion interdiffusion or secondary phase formation. Freestanding cathodes with a thickness of 85 µm, a relative density of 95%, and an industrial relevant LCO loading of 15 mg show an initial capacity of 82 mAh g-1 (63% of the theoretical capacity of LCO) in a solid-state cell with Li metal anodes, which is comparable to conventional LCO/LLZO cathodes and can be further improved in the future.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Alemania