All-ceramic Li batteries based on garnet structured Li7La3Zr2O12

Materials Technology, vol. 35, pp. 656–674

Abstract

All-ceramic Li batteries (CLBs) are expected as next generation energy storage devices because of their potential to have higher energy density and safety than nowadays Li-ion batteries. Garnet structured Li7La3Zr2O12 (LLZO) plays an important role on CLB developments due to its fast Li-ion conductivity, intrinsic stability toward Li and high chemical and electrochemical stabilities. After a decade of researches, many problems have been answered for LLZO-based CLB developments but still numerous challenges left to be solved. This review presents the latest efforts on the development of LLZO based CLBs, which covers the advances in LLZO crystal structure to increase its ionic conductivity and progresses in the use of Li as the electrode, regarding to its intrinsic chemical stability toward Li and interface elaboration for allowing Li dendrite suppression. On the positive electrode developments, chemical compatibility of various active materials and strategies to circumvent the incompatibility issue at high sintering temperatures are inspected.

Authors 5

1. Chih‐Long Tsai corresponding

   Forschungszentrum Jülich

   Affiliation as printed

   Institut für Energie- und Klimaforschung (IEK-9: Grundlagen der Elektrochemie), Forschungszentrum Jülich, D-52425 Jülich, Germany

2. Shicheng Yu

   Forschungszentrum Jülich

   Affiliation as printed

   Institut für Energie- und Klimaforschung (IEK-9: Grundlagen der Elektrochemie), Forschungszentrum Jülich, D-52425 Jülich, Germany

3. Hermann Tempel

   Forschungszentrum Jülich

   Affiliation as printed

   Institut für Energie- und Klimaforschung (IEK-9: Grundlagen der Elektrochemie), Forschungszentrum Jülich, D-52425 Jülich, Germany

4. Hans Kungl

   Forschungszentrum Jülich

   Affiliation as printed

   Institut für Energie- und Klimaforschung (IEK-9: Grundlagen der Elektrochemie), Forschungszentrum Jülich, D-52425 Jülich, Germany

5. Rüdiger‐A. Eichel Aachen Institut für Materialien und Prozesse für elektrochemische Energiespeicher– und wandler

   Forschungszentrum Jülich · Helmholtz-Institute Münster · RWTH Aachen University

   Affiliation as printed

   Institut für Energie- und Klimaforschung (IEK-12: Helmholtz-Institute Münster, Ionics in Energy Storage), Forschungszentrum Jülich, D-48149 Münster, Germany

   Institut für Energie- und Klimaforschung (IEK-9: Grundlagen der Elektrochemie), Forschungszentrum Jülich, D-52425 Jülich, Germany

   Institut für Materialien und Prozesse für elektrochemische Energiespeicher– und wandler, RWTH Aachen University, D-52074 Aachen, Germany