Decoupling sodium and phosphorus excess to control phase formation in Na4Fe3(PO4)2P2O7 cathodes

Key Points

• Excess sodium and phosphorus disrupt phase formation in Na4Fe3(PO4)2P2O7 cathodes, affecting performance.
• Key evidence shows how careful management of these elements leads to better structural integrity and efficiency.
• Observational analysis reveals critical insights into optimizing ionic compositions for advanced energy storage technologies.
• Findings suggest that managing elemental ratios can lead to significant enhancements in battery life and functionality.