期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 645, 期 -, 页码 64-69出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.03.209
关键词
Garnet-type oxide; Lithium solid electrolyte; Solid state battery; Precipitation; Li-ion conductivity
资金
- Institutional Strategy of the University of Bremen
- German Excellence Initiative
Substituted Li7La3Zr2O12 (LLZ) with cubic garnet type structure is a promising candidate for solid state electrolyte in all-solid-state batteries. Here we present a novel synthesis route to obtain single phase cubic Al-substituted LLZ. The two step method consists of a co-precipitation of metal hydroxides from aqueous solution as well as solid-state lithiation and crystallization of the dried precipitate. Morphology and chemical composition of precipitated particles were investigated with SEM and EDS. Phase composition of calcined powder was confirmed to be pure phase cubic LLZ via XRD. The temperature dependent lithium ion conduction of a sintered pellet was determined to be 6.3 10(-5) Slcm at 353 K with an activation energy of 0.58 eV. (C) 2015 Elsevier B.V. All rights reseived.
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