| Presentation | 2022-12-19 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, Akihiro Nomura, Tatsuo Horiba, Morihiro Saito, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | lithium air battery / air electrode / lithium peroxide / redox mediator / shuttle effect |
| Paper # | OME2022-45 |
| Date of Issue | 2022-12-12 (OME) |
| Conference Information | |
| Committee | OME |
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| Conference Date | 2022/12/19(1days) |
| 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 |
| Chair | Toshiki Yamada(NICT) |
| Vice Chair | Eiji Itoh(Shinshu Univ.) |
| Secretary | Eiji Itoh(Osaka Univ.) |
| Assistant | Yoshiyuki Seike(Aichi Inst. of Tech.) / Akira Baba(Niigata Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Organic Molecular Electronics |
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| Language | JPN |
| 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.) |
| Date | 2022-12-19 |
| Paper # | OME2022-45 |
| Volume (vol) | vol.122 |
| Number (no) | OME-321 |
| Page | pp.pp.12-16(OME), |
| #Pages | 5 |
| Date of Issue | 2022-12-12 (OME) |