Tuesday publication post! 📖 In this published article from the group of Wen-Wei Wu is focusing on the development of all-solid-state sodium batteries (Na-ASSBs)—a safer, high-energy-density alternative for energy storage. They used the Fusion AX system combined with high-resolution transmission electron microscopy (HRTEM), to explore the sodiation/desodiation process in Na3V2(PO4)3 (Na3VP) cathodes at an atomic scale.
⚡They first discovered an intermediate phase during biasing: Na2VP: This intermediate phase reduces lattice mismatch between Na3VP and NaV2(PO4)3, enhancing structural stability and performance.
🔬Moreover, the Na2VP phase facilitates faster Na+ ion migration, improving the efficiency of energy cycling processes.
The key take aways from this article:
📈Improved cycling stability: Prevents structural collapse for long-term use.
🔋Optimized performance: Lowers formation energy, paving the way for scalable, high-performance energy solutions.
This work enhances the understanding of electrode materials and accelerates the realization of safer, more efficient Na-ASSBs for energy storage applications.
Want to read the entire work? Find it here!
https://onlinelibrary.wiley.com/doi/10.1002/advs.202301490
