Electronic modulation with high-valence metal doping towards high-rate Na4Fe3(PO4)2P2O7 cathode in sodium-ion batteries

Key Points

• High-rate performance significantly enhances the efficiency of sodium-ion batteries, addressing energy storage challenges.
• The study shows a 30% increase in discharge capacity compared to standard cathodes under similar conditions.
• Assessment using electronic modulation and high-valence metal doping identifies effective strategies for cathode optimization.
• These findings highlight the need for further validation of high-valence metal impacts in diverse battery models.