AI Article Synopsis
- Sodium manganese-based oxides (NMO) are being researched as promising and affordable materials for sodium-ion batteries (SIBs) but face challenges with low capacity.
- The paper discusses advancements in enhancing the electrochemical performance and sodium storage mechanisms of various NMO phases, including P2, P3, O3, and others.
- It also outlines strategies like cationic substitution and anion redox activation to improve capacity, while highlighting future opportunities and challenges in this field.
Article Abstract
Sodium manganese-based oxides (NMO) are attracting huge attention as safe and cost-effective cathode materials for sodium-ion batteries (SIBs). To date, one of the most important challenges of NMO-based cathodes is the relatively low capacity. Therefore, it is of great significance to develop high-capacity NMO-based cathodes. Great efforts have been made to enhance the reversible capacity of NMO-based cathodes, achieving considerable progress not only on electrochemical performance, but also the mechanism of massive sodium ion storage. In this paper, the structure and sodium storage mechanism for typical phases of NMO are reviewed, including P2, P3, O3, tunnel-type, and spinel-type NMO-based cathodes. Strategies for high-capacity NMO-based cathodes, such as cationic substitution, anion redox activation, etc are introduced in detail. Last but not least, the future opportunities and challenges for high-capacity NMO-based cathode are prospected.
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| http://dx.doi.org/10.1002/chem.202202997 | DOI Listing |
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Article Synopsis
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- The paper discusses advancements in enhancing the electrochemical performance and sodium storage mechanisms of various NMO phases, including P2, P3, O3, and others.
- It also outlines strategies like cationic substitution and anion redox activation to improve capacity, while highlighting future opportunities and challenges in this field.
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