NMO Sodium Nickel-Manganese Oxides

Overview

NMO Cathode Active Material (NaNi₀.₅Mn₁.₅O₄) Powder is a sodium nickel–manganese oxide designed for advanced sodium-ion battery (SIB) research. This layered transition-metal oxide belongs to the NaMO₂-derived cathode family, where partial nickel substitution enhances electronic conductivity while manganese contributes to structural stability and cost efficiency. The material is optimised for laboratory-scale half-cell evaluation and fundamental electrochemical studies.

Working Principle

During electrochemical cycling, sodium ions reversibly intercalate and de-intercalate within the layered oxide lattice between 2.5–4.3 V. The Ni²⁺/Ni³⁺ and Mn³⁺/Mn⁴⁺ redox couples contribute to charge compensation, enabling stable sodium storage with moderate operating voltage and good rate behaviour in half-cell configurations.

Key Features and Specifications

• Chemical composition: NaNi₀.₅Mn₁.₅O₄
• Particle size distribution:
• D10 ≈ 8.2 µm
• D50 ≈ 13.21 µm
• D90 ≈ 19.5 µm
• Discharge capacity (half-cell, 2.5–4.3 V):
• ~135 mAh g⁻¹ at 0.1C
• ~124 mAh g⁻¹ at 0.2C
• Morphology: Micron-scale agglomerated particles suitable for slurry-based electrode fabrication
  
  

Compatibility

This cathode powder is compatible with standard sodium-ion half-cell assemblies, sodium metal counter electrodes, and commonly used organic electrolytes. It integrates well with potentiostats, battery cyclers, and electrochemical test cells supplied by ScienceGears for controlled performance evaluation.

Typical Applications

• Sodium-ion battery cathode screening
• Rate capability and cycling stability studies
• Structure–property relationship research
• Academic and industrial battery materials R&D
  
  

Why Choose ScienceGears

ScienceGears supplies research-grade battery materials alongside electrochemical instrumentation, battery test cells, and in-situ characterisation solutions, enabling researchers to source both materials and testing platforms from a single, technically focused distributor in Australia and New Zealand.