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Paper Abstract and Keywords
Presentation 2014-12-19 14:45
[Invited Talk] Dominant Factors of Ionic Transport in Lithium Ionics Materials with A Three-Dimensional Oxide Framework
Jun Kuwano (Tokyo Univ. of Science) OME2014-71
Abstract (in Japanese) (See Japanese page) 
(in English) Over 50 series of Li-ion conducting A-site deficient perovskite solid solutions (Li-ADPESSs) were synthesized, and their ionic conductivities were measured. Multiple regression analysis was performed on the observed ionic conductivities with a function of the explanatory variables of the flexibility (FF) of the condensed oxyacid framework determined from the BO4 stretch mode, the bottleneck size (BS), the tolerance factor, and the four variances of the ionic radii and charge numbers of the A- and B-site ions, and the resultant correlation coefficient R was as good as 0.91. The important knowledge obtained from the regression analysis was as follows: 1) Demonstration of the FF - BS theory: the optimal BS depends on the flexibility (i.e., If flexible, the optimal BS is small, and if rigid, large) 2) The explanatory variables are regarded as the dominant factors for the conductivity. This is the first success to determine the dominant factors by multiple regression analysis, and the BS-FF theory will be very useful for development of solid state ionics materials.
Keyword (in Japanese) (See Japanese page) 
(in English) Solid Electrolyte / Ionic Conductor / Lithium / Ionic Conductivity / Dominant Factor / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 383, OME2014-71, pp. 31-36, Dec. 2014.
Paper # OME2014-71 
Date of Issue 2014-12-12 (OME) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 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 2014-12-19 - 2014-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg 
Topics (in Japanese) (See Japanese page) 
Topics (in English) battery, electrochemistry, surface modification, catalyst, in situ obsrvation, capacito 
Paper Information
Registration To OME 
Conference Code 2014-12-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dominant Factors of Ionic Transport in Lithium Ionics Materials with A Three-Dimensional Oxide Framework 
Sub Title (in English)  
Keyword(1) Solid Electrolyte  
Keyword(2) Ionic Conductor  
Keyword(3) Lithium  
Keyword(4) Ionic Conductivity  
Keyword(5) Dominant Factor  
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1st Author's Name Jun Kuwano  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2014-12-19 14:45:00 
Presentation Time 30 minutes 
Registration for OME 
Paper # OME2014-71 
Volume (vol) vol.114 
Number (no) no.383 
Page pp.31-36 
#Pages 6 
Date of Issue 2014-12-12 (OME) 

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