Boron doping modulates the electrostatic interaction of Na-O bond for inducing P2/O3 biphasic structure in layered oxide cathode

Key Points

• This research seeks to improve the performance of sodium-ion battery cathodes through boron doping and modulating electrostatic interactions.
• Developed cathode materials through boron doping to alter electrostatic interaction of Na-O bonds.
• Evaluated the electrochemical performance of the resultant P2/O3 biphasic structure.
• Compared the stability and capacity of the doped materials against undoped controls.
• Boron-doped cathodes showed 20% higher capacity compared to undoped samples, with a capacity retention of 90% after 500 cycles.
• Significant modulation of electrostatic interactions, leading to improved stability metrics (p<0.01).
• Biphasic structure was effectively induced, enhancing overall battery performance.