English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Pyrochlore nanocrystals as versatile quasi-single-source precursors to lithium conducting garnets

Weller, J. M., & Chan, C. K. (2020). Pyrochlore nanocrystals as versatile quasi-single-source precursors to lithium conducting garnets. Journal of Materials Chemistry A, 8(34), 17405-17410. doi:10.1039/D0TA05842D.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0007-1989-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-198A-2
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Weller, J. Mark1, Author
Chan, Candace K.1, 2, Author              
Affiliations:
1Materials Science and Engineering, School for Engineering of Matter, Transport and Energy, Arizona State University, P.O. Box 876106, Tempe, AZ 85827, USA, ou_persistent22              
2Research Group Tüysüz, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950290              

Content

show
hide
Free keywords: -
 Abstract: Lithium conducting garnets are attractive solid electrolytes for solid-state lithium batteries but are difficult to process, generally requiring high reaction and sintering temperatures with long durations. In this work, we demonstrate a synthetic route to obtain Ta-doped garnet (Li6.4La3Zr1.4Ta0.6O12) utilizing La- and Ta-doped lanthanum zirconate (La2.4Zr1.12Ta0.48O7.04) pyrochlore nanocrystals as quasi-single-source precursors. Via molten salt synthesis (MSS) in a highly basic flux, the pyrochlore nanocrystals transform to Li-garnet at reaction temperatures as low as 400 °C. We also show that the pyrochlore-to-garnet conversion can take place in one step using reactive sintering, resulting in densified garnet ceramics with high ionic conductivity (0.53 mS cm−1 at 21 °C) and relative density (up to 94.7%). This approach opens new avenues for lower temperature synthesis of lithium garnets using a quasi-single-source precursor and provides an alternative route to highly dense garnet solid electrolytes without requiring advanced sintering processes.

Details

show
hide
Language(s): eng - English
 Dates: 2020-06-122020-08-032020-08-052020-09-14
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/D0TA05842D
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Materials Chemistry A
  Abbreviation : J. Mater. Chem. A
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 8 (34) Sequence Number: - Start / End Page: 17405 - 17410 Identifier: ISSN: 2050-7488
CoNE: https://pure.mpg.de/cone/journals/resource/2050-7488