Charge-Discharge Data:

First Discharge Capacity: 127 mAh/g (4.0-2.0 V, 0.1C)

• Initial Coulombic Efficiency: ≥ 80%

• Specific Capacity:

  • Initial Discharge Capacity: 150-160 mAh/g

  • Capacity Retention: ≥ 85% after 100 cycles

• Charge/Discharge Rate Capability:

  • At 0.1C: 155-160 mAh/g

  • At 1C: 130-140 mAh/g

  • At 5C: 90-100 mAh/g

• Cycling Stability: Less than 10% capacity fade over 100 cycles at 0.5C

• Voltage Window: 2.0V to 3.8V (vs. Na/Na⁺)

Additional Data:

• XRD Patterns: Show well-defined peaks corresponding to the layered structure.

• SEM: Indicates a homogeneous particle distribution.

• EIS: Reflects low charge transfer resistance.

Tape Density	1.34 g/cm3
Size Distribution	D10: 3.45 um; D50: 7.64 um; D90: 17.03 um
Powder Color	Black
pH	12.82
Specific Surface Area (BET)	0.68 m2/g
Chemical Composition	Na: 20.72 (wt%)
	Ni+Fe+Mn: 50.63 (wt%) [mole ratio for Ni:Fe:Mn =1:1:1]