Abstract

FZJ-2014-00497

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Development of Li7La3Zr2O12-slurries for Lithium ion battery (LIB) functional components

Reppert, T. (Corresponding author)FZJ* ; Tsai, C.-L.FZJ* ; Hammer, E.-M.FZJ* ; Finsterbusch, M.VS-II* ; Uhlenbruck, S.FZJ* ; Bram, M.FZJ* ; Buchkremer, H. P.FZJ*

2014

Abstract: In the last decades, electricity generation from renewable energy sources has gained importance in our society. With the “Energiewende” there are promising changes in energy supply already; however there is a major demand for developing new energy storage systems. Solid state lithium ion batteries have, in comparison to common LIBs, better safety properties due to the solid electrolyte. Ceramic oxide materials as solid lithium ion conductors have the advantage of inertness against atmosphere and are easier in fabrication. Li7La3Zr2O12 (LLZ) is a promising oxide material for electrolyte layers in all solid state batteries (ASBs). Its cubic phase shows one of the highest total Li+ ion conductivities (σ≈5∙〖10〗^(-4) S/cm). In Addition, dopants like Al, Ta and Y can be used to improve the garnets properties. However, to fabricate a working ASB, the materials needs to be processed into functional electrolyte layers. Different powder synthesis methods have been investigated. These powders have then been used for dispersion studies and different LLZ-slurries for further processing trials.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)

Research Program(s):

1. 435 - Energy Storage (POF2-435) (POF2-435)
2. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)

Appears in the scientific report 2014

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