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Paper Abstract and Keywords
Presentation 2022-12-19 16:10
Conductivity and thermal stability of F--doped B-type carbonated apatite-based solid electrolyte
Rei Akamatsu, Yumi Tanaka (Tokyo Univ. of Science) OME2022-49
Abstract (in Japanese) (See Japanese page) 
(in English) Motivated by the practical application of FCA ((Ca10-x Na2x/3)[(PO4)6-x(CO3)x][(OH)2-(x/3)-y F y]) as a solid electrolyte, the effects of anion composition and thermal environment on the conductivity of FCA were investigated. The conductivity tended to decrease with increasing y, which was probably caused by the generation of partial dead-ends in the conduction path of O2- due to the excess of F- introduced at the OH- site on the c-axis. The results of thermal stability test of FCA (x≈1.3, y≈0.88) reveled that the 70 h-annealing at 800ºC under air decreases the conductivity form the initial value of 2.4×10-2 Scm-1 to 5.5×10-4 Scm-1; which is considered to be due to partial elimination of CO32-.
Keyword (in Japanese) (See Japanese page) 
(in English) Carbonated apatite / Solid electrolyte / Oxide ion conduction / Conductivity / Thermal stability / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 321, OME2022-49, pp. 30-32, Dec. 2022.
Paper # OME2022-49 
Date of Issue 2022-12-12 (OME) 
ISSN Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee OME  
Conference Date 2022-12-19 - 2022-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Katsushika Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) battery, electrochemistry, surface modification, catalyst, in situ observation, capacitor 
Paper Information
Registration To OME 
Conference Code 2022-12-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Conductivity and thermal stability of F--doped B-type carbonated apatite-based solid electrolyte 
Sub Title (in English)  
Keyword(1) Carbonated apatite  
Keyword(2) Solid electrolyte  
Keyword(3) Oxide ion conduction  
Keyword(4) Conductivity  
Keyword(5) Thermal stability  
1st Author's Name Rei Akamatsu  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Yumi Tanaka  
2nd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2022-12-19 16:10:00 
Presentation Time 20 minutes 
Registration for OME 
Paper # OME2022-49 
Volume (vol) vol.122 
Number (no) no.321 
Page pp.30-32 
Date of Issue 2022-12-12 (OME) 

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