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Paper Abstract and Keywords
Presentation 2022-12-19 13:40
Effects and Reaction Mechanism Analysis of Nitrite Salts Coating to Positive Electrode for Non-aqueous Li-air Batteries
Mitsuki Sano, Itsuki Moro, Fumisato Ozawa, Shota Azuma (Seikei Univ.), Akihiro Nomura (NIMS), Tatsuo Horiba, Morihiro Saito (Seikei Univ.) OME2022-45
Abstract (in Japanese) (See Japanese page) 
(in English) Redox mediator (RM) dissolved in the electrolyte solution of Li-O2 cells enables to reduce the charge overvoltage, though a certain part of the charged energy is lost through so-called shuttle effect. Therefore, we proposed to fix RM on air electrodes (AE) by coating a slurry of RM, carbon black and binder on the air electrode instead of dissolving it in the electrolyte solution. Since LiNO3 is reduced into NO2− to be an active RM at the Li electrode, we evaluated alkali metal LiNO2 as RM by coating it on AE. In addition, comparison among LiNO2, NaNO2, and KNO2 revealed better performance of LiNO2 than others with lower charging overpotential.
Keyword (in Japanese) (See Japanese page) 
(in English) lithium air battery / air electrode / lithium peroxide / redox mediator / shuttle effect / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 321, OME2022-45, pp. 12-16, Dec. 2022.
Paper # OME2022-45 
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)
Download PDF OME2022-45

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) Effects and Reaction Mechanism Analysis of Nitrite Salts Coating to Positive Electrode for Non-aqueous Li-air Batteries 
Sub Title (in English)  
Keyword(1) lithium air battery  
Keyword(2) air electrode  
Keyword(3) lithium peroxide  
Keyword(4) redox mediator  
Keyword(5) shuttle effect  
1st Author's Name Mitsuki Sano  
1st Author's Affiliation Seikei University (Seikei Univ.)
2nd Author's Name Itsuki Moro  
2nd Author's Affiliation Seikei University (Seikei Univ.)
3rd Author's Name Fumisato Ozawa  
3rd Author's Affiliation Seikei University (Seikei Univ.)
4th Author's Name Shota Azuma  
4th Author's Affiliation Seikei University (Seikei Univ.)
5th Author's Name Akihiro Nomura  
5th Author's Affiliation National Institute for Materials Science (NIMS)
6th Author's Name Tatsuo Horiba  
6th Author's Affiliation Seikei University (Seikei Univ.)
7th Author's Name Morihiro Saito  
7th Author's Affiliation Seikei University (Seikei Univ.)
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Speaker Author-1 
Date Time 2022-12-19 13:40:00 
Presentation Time 20 minutes 
Registration for OME 
Paper # OME2022-45 
Volume (vol) vol.122 
Number (no) no.321 
Page pp.12-16 
Date of Issue 2022-12-12 (OME) 

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