Lithium phosphosulfide electrolytes for solid-state batteries: Part II

Functional Materials Letters, vol. 15

Abstract

Among the electrolytes designed for all solid-state batteries, the phosphosulfide electrolytes stand out with respect to their very high Li-ion conductivities. However, when in contact with metallic lithium anodes, there are remaining challenges to ensure long-term operation stability. Both issues, the Li-ion conductivity and the electrochemical stability vs. metallic lithium, are the subject of this review. After introducing the background for developing all solid-state Li-ion batteries with metallic lithium anode and providing a brief overview on four types of phosphosulfide electrolytes, in Part I of the review a compound treatment on the Li–P–S and the LiSICon type electrolytes had been given. Part II of the review will continue following the same schedule by discussing the chemistry, structure, processing and Li-ion conductivity of the LGPS and the Argyrodite-type phosphosulfides. Emphasis is put on the treatise of the chemistries supported by the consideration of specific phase diagrams and intra-type comparisons of the Li-ion conductivities at ambient temperature. In a summarizing section, inter-type comparisons among selected compositions of the Li–P–S type, the LiSICon-type, the LGPS-type and the Argyrodite-type phosphosulfides are addressed for the two main issues for electrolytes in all solid-state batteries, the Li-ion conductivities and the electrochemical stability vs. metallic lithium. The review is concluded with remarks on the status and the perspectives of the research on Li-ion conducting phosphosulfide electrolytes.

Authors 14

1. Xin Lu Aachen Institut für Materialien und Prozesse für elektrochemische Energiespeicher– und wandler

   Forschungszentrum Jülich · RWTH Aachen University

   Affiliation as printed

   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

2. Chih‐Long Tsai

   Forschungszentrum Jülich

   Affiliation as printed

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

3. Shicheng Yu

   Forschungszentrum Jülich

   Affiliation as printed

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

4. Hongying He

   Nanyang Technological University

   Affiliation as printed

   School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore

5. Osmane Camara

   Forschungszentrum Jülich

   Affiliation as printed

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

6. Hermann Tempel

   Forschungszentrum Jülich

   Affiliation as printed

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

7. Zigeng Liu

   Forschungszentrum Jülich

   Affiliation as printed

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

8. Anna Windmüller

   Forschungszentrum Jülich

   Affiliation as printed

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

9. Evgeny V. Alekseev

   Forschungszentrum Jülich

   Affiliation as printed

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

10. S. Kocher

    Forschungszentrum Jülich

    Affiliation as printed

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

11. Shibabrata Basak

    Forschungszentrum Jülich · Ernst Ruska Centre

    Affiliation as printed

    Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum Jülich, D-52425 Jülich, Germany

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

12. Li Lü

    National University of Singapore

    Affiliation as printed

    Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore

13. 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

14. Hans Kungl

    Forschungszentrum Jülich

    Affiliation as printed

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