Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition Metals
Abstract Aqueous lithium‐ion batteries are promising electrochemical energy storage devices owing to their sustainable nature, low cost, high level of safety, and environmental benignity. The recent development of a high‐salt‐concentration strategy for aqueous electrolytes, which significantly expan...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-04-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202104907 |
| _version_ | 1817989078308618240 |
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| author | Hirohito Umeno Kosuke Kawai Daisuke Asakura Masashi Okubo Atsuo Yamada |
| author_facet | Hirohito Umeno Kosuke Kawai Daisuke Asakura Masashi Okubo Atsuo Yamada |
| author_sort | Hirohito Umeno |
| collection | DOAJ |
| description | Abstract Aqueous lithium‐ion batteries are promising electrochemical energy storage devices owing to their sustainable nature, low cost, high level of safety, and environmental benignity. The recent development of a high‐salt‐concentration strategy for aqueous electrolytes, which significantly expands their electrochemical potential window, has created attractive opportunities to explore high‐performance electrode materials for aqueous lithium‐ion batteries. This study evaluates the compatibility of large‐capacity oxygen‐redox cathodes with hydrate‐melt electrolytes. Using conventional oxygen‐redox cathode materials (Li2RuO3, Li1.2Ni0.13Co0.13Mn0.54O2, and Li1.2Ni0.2Mn0.6O2), it is determined that avoiding the use of transition metals with high catalytic activity for the oxygen evolution reaction is the key to ensuring the stable progress of the oxygen redox reaction in concentrated aqueous electrolytes. |
| first_indexed | 2024-04-14T00:42:37Z |
| format | Article |
| id | doaj.art-a12854e8a8c84c30bdaba0e729d1e6e2 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-14T00:42:37Z |
| publishDate | 2022-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-a12854e8a8c84c30bdaba0e729d1e6e22022-12-22T02:22:09ZengWileyAdvanced Science2198-38442022-04-01912n/an/a10.1002/advs.202104907Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition MetalsHirohito Umeno0Kosuke Kawai1Daisuke Asakura2Masashi Okubo3Atsuo Yamada4A Department of Chemical System Engineering School of Engineering The University of Tokyo Hongo 7‐3‐1, Bunkyo‐ku Tokyo 113‐8656 JapanA Department of Chemical System Engineering School of Engineering The University of Tokyo Hongo 7‐3‐1, Bunkyo‐ku Tokyo 113‐8656 JapanNational Institute of Advanced Industrial Science and Technology (AIST) Umezono 1‐1‐1 Tsukuba Ibaraki 305‐8568 JapanA Department of Chemical System Engineering School of Engineering The University of Tokyo Hongo 7‐3‐1, Bunkyo‐ku Tokyo 113‐8656 JapanA Department of Chemical System Engineering School of Engineering The University of Tokyo Hongo 7‐3‐1, Bunkyo‐ku Tokyo 113‐8656 JapanAbstract Aqueous lithium‐ion batteries are promising electrochemical energy storage devices owing to their sustainable nature, low cost, high level of safety, and environmental benignity. The recent development of a high‐salt‐concentration strategy for aqueous electrolytes, which significantly expands their electrochemical potential window, has created attractive opportunities to explore high‐performance electrode materials for aqueous lithium‐ion batteries. This study evaluates the compatibility of large‐capacity oxygen‐redox cathodes with hydrate‐melt electrolytes. Using conventional oxygen‐redox cathode materials (Li2RuO3, Li1.2Ni0.13Co0.13Mn0.54O2, and Li1.2Ni0.2Mn0.6O2), it is determined that avoiding the use of transition metals with high catalytic activity for the oxygen evolution reaction is the key to ensuring the stable progress of the oxygen redox reaction in concentrated aqueous electrolytes.https://doi.org/10.1002/advs.202104907aqueous batteriesaqueous electrolytebatteriescathodesoxygen evolutionoxygen redox |
| spellingShingle | Hirohito Umeno Kosuke Kawai Daisuke Asakura Masashi Okubo Atsuo Yamada Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition Metals Advanced Science aqueous batteries aqueous electrolyte batteries cathodes oxygen evolution oxygen redox |
| title | Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition Metals |
| title_full | Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition Metals |
| title_fullStr | Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition Metals |
| title_full_unstemmed | Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition Metals |
| title_short | Oxygen Redox Versus Oxygen Evolution in Aqueous Electrolytes: Critical Influence of Transition Metals |
| title_sort | oxygen redox versus oxygen evolution in aqueous electrolytes critical influence of transition metals |
| topic | aqueous batteries aqueous electrolyte batteries cathodes oxygen evolution oxygen redox |
| url | https://doi.org/10.1002/advs.202104907 |
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