Boron group element doping of Li1.5Al0.5Ge1.5(PO4)3 based on microwave sintering

Boron group element doping of Li1.5Al0.5Ge1.5(PO4)3 based on microwave sintering

We report effectiveness of dopants selected from group 13, such as B, Ga, and In, on the conductivity of Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) that is recognized as one of the promising solid electrolytes for next-generation solid-state lithium batteries. To minimize loss of versatile element, cryst...

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Veröffentlicht in:Journal of solid state electrochemistry 2021, Vol.25 (2), p.527-534
Hauptverfasser: Yan, Binggong, Kang, Lei, Kotobuki, Masashi, He, Linchun, Liu, Bin, Jiang, Kaiyong
Format: Artikel
Sprache:eng
Schlagworte:
Analytical Chemistry
Boron
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Crystallization
Doping
Electrochemistry
Energy Storage
Gallium
Grain boundaries
Ion currents
Ions
Lithium
Lithium batteries
Microwave sintering
Molten salt electrolytes
Original Paper
Physical Chemistry
Solid electrolytes
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Zusammenfassung:We report effectiveness of dopants selected from group 13, such as B, Ga, and In, on the conductivity of Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) that is recognized as one of the promising solid electrolytes for next-generation solid-state lithium batteries. To minimize loss of versatile element, crystallization of LAGP using a microwave irradiation is introduced. Experimental results demonstrate that B enhances grain boundary conductivity, while Ga improves the bulk ionic conductivity. Co-doping of B and Ga leads to enhanced total ionic conductivity and remarkably reduced activation energy.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-020-04829-2