Publications by authors named "Meijing Xiao"
Multifunctional NaTiO Coating-Enabled High-Voltage and Capacitive-like Sodium-Ion Storage of NaMnO.
ACS Appl Mater Interfaces
August 2023
Sodium-ion batteries, as an attractive option for large-scale energy storage, still face the problems of low energy density and unsatisfactory rate performance. Among various cathodes, the tunnel-type NaMnO with large S-shaped Na transport tunnels is one of the promising cathode materials for fast and robust sodium-ion storage, yet suffering from Mn dissolution and structural collapse. Herein, a Na-rich layered oxide NaTiO is first constructed as a multifunctional coating layer on the surface of the NaMnO nanorod.
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- 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.