Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramics
Li1.5Al0.5Ti1.5(PO4)3 (LATP) is the most promising electrolytes. LATP precursor was prepared by the co-precipitation method and calcined at 500–900°C to examine the influence of the calcination temperature on LATP pellets sintered at 1000°C. The calcination temperature exerted a large effect on the...
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Online Access: | http://dx.doi.org/10.1080/21870764.2018.1564166 |
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doaj-b6c42449f6134e32b3ff27bc1abab22d2021-05-02T03:20:33ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642019-01-0171697410.1080/21870764.2018.15641661564166Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramicsMasashi Kotobuki0Masaki Koishi1Hakodate National College of TechnologyHakodate National College of TechnologyLi1.5Al0.5Ti1.5(PO4)3 (LATP) is the most promising electrolytes. LATP precursor was prepared by the co-precipitation method and calcined at 500–900°C to examine the influence of the calcination temperature on LATP pellets sintered at 1000°C. The calcination temperature exerted a large effect on the morphology of sintered LATP pellets, even though the sintering temperature was same for all the samples. Formation of voids was observed in the precursor powders calcined at 500, 600, 700, and 900°C, while no void was formed in the powder calcined at 800°C. The precursor powders calcined at low temperatures (500–700°C) were crystallized during sintering. This caused shrinkage of the particles, leading to the void formation. The precursor powder calcined at 900°C was more stable at the sintering temperature. Resulting in formation of porous pellets. These voids increase the grain-boundary resistance. As a result, the LATP pellets prepared from the precursor powder calcined at 800°C showed the highest conductivity (σtotal = 5.1 × 10−4 S cm−1) due to the relatively high crystallinity and stability of the precursor powder. It was concluded the calcination temperature applied to the precursor powders influences the properties of final sintered LATP pellets. The calcination temperature must thus be chosen carefully.http://dx.doi.org/10.1080/21870764.2018.1564166Solid electrolytelithium batteryco-precipitationNASICON-type solid electrolyte |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Masashi Kotobuki Masaki Koishi |
spellingShingle |
Masashi Kotobuki Masaki Koishi Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramics Journal of Asian Ceramic Societies Solid electrolyte lithium battery co-precipitation NASICON-type solid electrolyte |
author_facet |
Masashi Kotobuki Masaki Koishi |
author_sort |
Masashi Kotobuki |
title |
Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramics |
title_short |
Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramics |
title_full |
Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramics |
title_fullStr |
Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramics |
title_full_unstemmed |
Influence of precursor calcination temperature on sintering and conductivity of Li1.5Al0.5Ti1.5(PO4)3 ceramics |
title_sort |
influence of precursor calcination temperature on sintering and conductivity of li1.5al0.5ti1.5(po4)3 ceramics |
publisher |
Taylor & Francis Group |
series |
Journal of Asian Ceramic Societies |
issn |
2187-0764 |
publishDate |
2019-01-01 |
description |
Li1.5Al0.5Ti1.5(PO4)3 (LATP) is the most promising electrolytes. LATP precursor was prepared by the co-precipitation method and calcined at 500–900°C to examine the influence of the calcination temperature on LATP pellets sintered at 1000°C. The calcination temperature exerted a large effect on the morphology of sintered LATP pellets, even though the sintering temperature was same for all the samples. Formation of voids was observed in the precursor powders calcined at 500, 600, 700, and 900°C, while no void was formed in the powder calcined at 800°C. The precursor powders calcined at low temperatures (500–700°C) were crystallized during sintering. This caused shrinkage of the particles, leading to the void formation. The precursor powder calcined at 900°C was more stable at the sintering temperature. Resulting in formation of porous pellets. These voids increase the grain-boundary resistance. As a result, the LATP pellets prepared from the precursor powder calcined at 800°C showed the highest conductivity (σtotal = 5.1 × 10−4 S cm−1) due to the relatively high crystallinity and stability of the precursor powder. It was concluded the calcination temperature applied to the precursor powders influences the properties of final sintered LATP pellets. The calcination temperature must thus be chosen carefully. |
topic |
Solid electrolyte lithium battery co-precipitation NASICON-type solid electrolyte |
url |
http://dx.doi.org/10.1080/21870764.2018.1564166 |
work_keys_str_mv |
AT masashikotobuki influenceofprecursorcalcinationtemperatureonsinteringandconductivityofli15al05ti15po43ceramics AT masakikoishi influenceofprecursorcalcinationtemperatureonsinteringandconductivityofli15al05ti15po43ceramics |
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1721495705763184640 |