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| 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 |
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| 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 | |
| Copyright and 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) | |
| Download PDF | OME2022-45 |
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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) | 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 |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 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 |
| #Pages | 5 |
| Date of Issue | 2022-12-12 (OME) |
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