Importance of substrate materials for sintering Li<inf>1.5</inf>Al<inf>0.5</inf>Ge<inf>1.5</inf>(PO<inf>4</inf>)<inf>3</inf> solid electrolyte

Kotobuki, M; Zhou, C; Su, Z; Yang, L; Wang, Y; Jason, CJJ; Liu, Z; Lu, L

Importance of substrate materials for sintering Li<inf>1.5</inf>Al<inf>0.5</inf>Ge<inf>1.5</inf>(PO<inf>4</inf>)<inf>3</inf> solid electrolyte

Kotobuki, M Zhou, C Su, Z Yang, L

Wang, Y Jason, CJJ Liu, Z Lu, L

Permalink

Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Solid State Chemistry, 2022, 310, pp. 123043
Issue Date:: 2022-06-01

Closed Access

	Filename	Description	Size
	Importance of substrate materials for sintering.pdf	Published version	2.22 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Kotobuki, M
dc.contributor.author	Zhou, C
dc.contributor.author	Su, Z
dc.contributor.author	Yang, L https://orcid.org/0000-0003-0123-1540
dc.contributor.author	Wang, Y
dc.contributor.author	Jason, CJJ
dc.contributor.author	Liu, Z
dc.contributor.author	Lu, L
dc.date.accessioned	2023-04-06T05:17:34Z
dc.date.available	2023-04-06T05:17:34Z
dc.date.issued	2022-06-01
dc.identifier.citation	Journal of Solid State Chemistry, 2022, 310, pp. 123043
dc.identifier.issn	0022-4596
dc.identifier.issn	1095-726X
dc.identifier.uri	http://hdl.handle.net/10453/169347
dc.description.abstract	Li1.5Al0.5Ge1.5(PO4)3 (LAGP) solid electrolyte with a NASICON (Na super ionic conductor) structure is a promising electrolyte for all-solid-state Li batteries. It is well-known that Al contamination occurs in garnet-type solid electrolytes when Al2O3 substrate is used for sintering. In this paper, the influence of substrate materials for sintering on properties of LAGP solid electrolyte is studied. The LAGP samples are sintered on Al2O3 or Pt substrate at 950 °C. TEM-EDS results show that oxides of Ge and Al are observed when sintering is performed on Pt substrate while phosphates of Li and Al are detected in the sample sintered on Al2O3 substrate. Also, the sample sintered on Al2O3 contains more Al due to Al contamination from the substrate. The Li ion conductivity is also affected by the substrate, and higher conductivity is observed in the sample sintered on the Al2O3 substrate. It is concluded that the Al contamination occurs in the LAGP solid electrolyte sintered on Al2O3 substrate. The selection of substrate is a key factor for development of LAGP solid electrolyte.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Journal of Solid State Chemistry
dc.relation.isbasedon	10.1016/j.jssc.2022.123043
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0302 Inorganic Chemistry, 0303 Macromolecular and Materials Chemistry, 0306 Physical Chemistry (incl. Structural)
dc.subject.classification	Inorganic & Nuclear Chemistry
dc.title	Importance of substrate materials for sintering Li<inf>1.5</inf>Al<inf>0.5</inf>Ge<inf>1.5</inf>(PO<inf>4</inf>)<inf>3</inf> solid electrolyte
dc.type	Journal Article
utslib.citation.volume	310
utslib.for	0302 Inorganic Chemistry
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0306 Physical Chemistry (incl. Structural)
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-06T05:17:33Z
pubs.publication-status	Published
pubs.volume	310

Abstract:

Li1.5Al0.5Ge1.5(PO4)3 (LAGP) solid electrolyte with a NASICON (Na super ionic conductor) structure is a promising electrolyte for all-solid-state Li batteries. It is well-known that Al contamination occurs in garnet-type solid electrolytes when Al2O3 substrate is used for sintering. In this paper, the influence of substrate materials for sintering on properties of LAGP solid electrolyte is studied. The LAGP samples are sintered on Al2O3 or Pt substrate at 950 °C. TEM-EDS results show that oxides of Ge and Al are observed when sintering is performed on Pt substrate while phosphates of Li and Al are detected in the sample sintered on Al2O3 substrate. Also, the sample sintered on Al2O3 contains more Al due to Al contamination from the substrate. The Li ion conductivity is also affected by the substrate, and higher conductivity is observed in the sample sintered on the Al2O3 substrate. It is concluded that the Al contamination occurs in the LAGP solid electrolyte sintered on Al2O3 substrate. The selection of substrate is a key factor for development of LAGP solid electrolyte.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/169347