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| Home > Publications database > The development of all-solid-state Li batteries in IEK-1 at Forschungszentrum Jülich |
| Home > Publications database > The development of all-solid-state Li batteries in IEK-1 at Forschungszentrum Jülich |
| Talk (non-conference) (Invited) | FZJ-2015-04607 |
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2015
Abstract: In conventional lithium ion batteries, the using of liquid electrolyte is the bottleneck for improving its safety, energy density and lifetime. Solid-state ion conductors are the promising approach to overcome these limitations. Among the solid Li ionic conductors, garnet structured Li7La3Zr2O12 (LLZ) has attracted most attention due to their high ion conductivity, wide electrochemical window versus Li+/Li, chemically stable against metallic Li and inert to oxygen which makes it easy for processing. Therefore, LLZ is one of the most promising candidates for all-solid-state batteries as well as Li-air and Li-sulfur battery applications.The battery research activities at IEK-1 are focused on applications in stationary and automotive systems as well as miniaturized thin film cells. Physical vapor and wet-chemical depositions are used for layers with thickness of about one micrometer in thin film batteries. For bulk batteries with layers, tape casting and screen printing is used for material processing. The synthesized materials and the fabricated cells have been analyzed with regard to their morphology, stoichiometry, crystal phase composition and electrochemical performances. The effect of deposition parameters and substrates on layer growth as well as the influence of microstructure architecture on the cell performance will be discussed.
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