Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 10, 2019
Previous Article Next Article

A bird's-eye view of Li-stuffed garnet-type Li7La3Zr2O12 ceramic electrolytes for advanced all-solid-state Li batteries

Author affiliations

Abstract

Batteries with a solid-state electrolyte and a Li anode (solid-state Li batteries, SSLBs) are being considered to replace conventional organic liquid-based Li-ion batteries due to SSLBs’ promise of higher energy density and improved safety. The crucial component in SSLBs is the solid-state electrolyte which must fulfill requirements in Li-ion conductivity, electrochemical stability, and chemical stability towards the cathode and Li anode. Recently, much attention has been given to a class of ceramics with a garnet-type structure, specifically on compositions based on Li-stuffed Li7La3Zr2O12 (LLZO) because they fulfill all the enumerated requirements for a solid-state electrolyte. In this review, we update the progress and analyze the trends in the three main approaches to realize the technological application of LLZO as an electrolyte in SSLBs: (i) crystal structure and lithium content control by doping to enhance Li-ion conductivity of LLZO, (ii) microstructure and dimension control by material processing and thin-film fabrication to reduce electrolyte resistance, and (iii) LLZO–electrode interface tuning to reduce interfacial resistance and improve battery performance. Finally, we offer our perspectives on research paths toward the realization of practical batteries with LLZO solid electrolytes.

Graphical abstract: A bird's-eye view of Li-stuffed garnet-type Li7La3Zr2O12 ceramic electrolytes for advanced all-solid-state Li batteries

Back to tab navigation

Article information


Submitted
16 Jun 2019
Accepted
12 Aug 2019
First published
12 Sep 2019

Energy Environ. Sci., 2019,12, 2957-2975
Article type
Review Article

A bird's-eye view of Li-stuffed garnet-type Li7La3Zr2O12 ceramic electrolytes for advanced all-solid-state Li batteries

A. J. Samson, K. Hofstetter, S. Bag and V. Thangadurai, Energy Environ. Sci., 2019, 12, 2957
DOI: 10.1039/C9EE01548E

Social activity

Search articles by author

Spotlight

Advertisements