Abstract
Recently, All-Solid-State Batteries (ASSBs) using an inorganic solid electrolyte have been widely studied due to the safety concern of lithium-ion batteries associated with the use of flammable organic liquid electrolyte.[1] However, current technology readiness of ASSBs is not enough for practical applications yet, mainly because of limitation in ceramic processing for solid elctrolyte. The typical ceramic processing requires a laborious mixing step as well as high temperature sintering, which in many cases impede economically efficient development of high performing ASSBs. Most of the promising garnet-type oxide solid electrolytes, such as Li7La3Zr2O12 (LLZO) and Li1.3Al0.3Ti1.7(PO4)3 (LATP), require high-pressure (>30 MPa) and high-temperature (>1000oC) processes to obtain a dense enough membrane.[2, 3] Although the conventional solid-state process is scalable for the ceramic powder fabrication, the pelletized membrane still needs to be improved for the scale-up aspects. Therefore, an advanced membrane fabrication method should be developed in order to address the potential commercialization of ASSBs by fulfilling its cost-effectiveness in time and quantity scales.In this presentation, we report a dense and uniform Li6.25Al0.25La3Zr2O12 (LLZO) membrane (~ 20 μm) which is successfully fabricated by the aerosol deposition (AD) method carried out at room-temperature. The AD, which can be catagorized in a ceramic cold spraying technology, is a low-cost, scalable method and is capable to produce a dense ceramic membrane.[4] By introducing the AD technique to LLZO membrane process, the importance of parameters control will be discussed for a dense thick LLZO film for ASSBs.Key words: Li7La3Zr2O12, Aerosol deposition, Solid electrolyte[1] Y.S. Jung et al., Journal of Materials Chemistry A, 4 (2016) 10329-10335.[2] J. Sakamoto et al., Chemistry of Materials, 28 (2015) 197-206.[3] Waetzig, Katja, et al., Journal of Alloys and Compounds, 818 (2020) 153237.[4] Hanft, Dominik, et al., J. Ceram. Sci. Technol, 6.3 (2015) 147-182
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
