Journal
MATERIALS
Volume 14, Issue 22, Pages -Publisher
MDPI
DOI: 10.3390/ma14226904
Keywords
solid electrolytes; lithium zirconates; lithium cation conductivity; crystal structure; glycine-nitrate synthesis; heterovalent doping
Categories
Funding
- budget plan of The Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences [AAAA-A19-119020190042-7]
Ask authors/readers for more resources
The study found that monoclinic Li6Zr2O7 shows better transport properties in the Li(6-x)Zr(2-x)AxO(7) (A = Nb; Ta) system, and Li5.8Zr1.8Nb(Ta)(0.2)O-7 solid solutions exhibit higher lithium-cation conductivity at 300°C. This is attributed to the open structure of monoclinic Li6Zr2O7 and a high solubility of the doping cations.
Li(6-x)Zr(2-x)AxO(7) (A = Nb; Ta) system with 0 < x < 0.30 is synthesized by glycine-nitrate method. Boundaries of solid solutions based on monoclinic Li6Zr2O7 are determined; temperature (200-600 & DEG;C) and concentration dependences of conductivity are investigated. It is shown that monoclinic Li6Zr2O7 exhibits better transport properties compared to its triclinic modification. Li5.8Zr1.8Nb(Ta)(0.2)O-7 solid solutions have a higher lithium-cation conductivity at 300 & DEG;C compared to solid electrolytes based on other lithium zirconates due the open structure of monoclinic Li6Zr2O7 and a high solubility of the doping cations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
