Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering Process

A NASICON-type Li<sub>1.3</sub>Al<sub>0.3</sub>Ti<sub>1.7</sub>(PO<sub>4</sub>)<sub>3</sub> (LATP) electrolyte sheet for all-solid-state batteries was fabricated by a cold sintering process (CSP). The microstructure of the LATP sheet was co...

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Main Authors: Naoki Hamao, Yuki Yamaguchi, Koichi Hamamoto
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/16/4737
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author Naoki Hamao
Yuki Yamaguchi
Koichi Hamamoto
author_facet Naoki Hamao
Yuki Yamaguchi
Koichi Hamamoto
author_sort Naoki Hamao
collection DOAJ
description A NASICON-type Li<sub>1.3</sub>Al<sub>0.3</sub>Ti<sub>1.7</sub>(PO<sub>4</sub>)<sub>3</sub> (LATP) electrolyte sheet for all-solid-state batteries was fabricated by a cold sintering process (CSP). The microstructure of the LATP sheet was controlled to improve the wettability which is an essential factor in CSP. The porous sheets of LATP were prepared by calcination the green sheets to remove the organic components and form the porous structure. By the CSP using the porous sheets, the densification of grain boundary was observed and further densified with increasing reaction time. The total conductivity of the prepared LATP sheet was improved from 3.0 × 10<sup>−6</sup> S/cm to 3.0 × 10<sup>−4</sup> S/cm due to the formation of necks between the particles at the grain boundary.
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spelling doaj.art-2984ae62f38d4ea6a59568b05875d80e2023-11-22T08:32:08ZengMDPI AGMaterials1996-19442021-08-011416473710.3390/ma14164737Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering ProcessNaoki Hamao0Yuki Yamaguchi1Koichi Hamamoto2Innovative Functional Materials and Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Shimo-shidami Anagahora, Moriyama-ku, Nagoya 406-8560, JapanInnovative Functional Materials and Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Shimo-shidami Anagahora, Moriyama-ku, Nagoya 406-8560, JapanInnovative Functional Materials and Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Shimo-shidami Anagahora, Moriyama-ku, Nagoya 406-8560, JapanA NASICON-type Li<sub>1.3</sub>Al<sub>0.3</sub>Ti<sub>1.7</sub>(PO<sub>4</sub>)<sub>3</sub> (LATP) electrolyte sheet for all-solid-state batteries was fabricated by a cold sintering process (CSP). The microstructure of the LATP sheet was controlled to improve the wettability which is an essential factor in CSP. The porous sheets of LATP were prepared by calcination the green sheets to remove the organic components and form the porous structure. By the CSP using the porous sheets, the densification of grain boundary was observed and further densified with increasing reaction time. The total conductivity of the prepared LATP sheet was improved from 3.0 × 10<sup>−6</sup> S/cm to 3.0 × 10<sup>−4</sup> S/cm due to the formation of necks between the particles at the grain boundary.https://www.mdpi.com/1996-1944/14/16/4737Li-ion conductorsolid electrolyteNASICON-type oxide
spellingShingle Naoki Hamao
Yuki Yamaguchi
Koichi Hamamoto
Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering Process
Materials
Li-ion conductor
solid electrolyte
NASICON-type oxide
title Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering Process
title_full Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering Process
title_fullStr Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering Process
title_full_unstemmed Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering Process
title_short Densification of a NASICON-Type LATP Electrolyte Sheet by a Cold-Sintering Process
title_sort densification of a nasicon type latp electrolyte sheet by a cold sintering process
topic Li-ion conductor
solid electrolyte
NASICON-type oxide
url https://www.mdpi.com/1996-1944/14/16/4737
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AT yukiyamaguchi densificationofanasicontypelatpelectrolytesheetbyacoldsinteringprocess
AT koichihamamoto densificationofanasicontypelatpelectrolytesheetbyacoldsinteringprocess