BN-O3A O3 Type Sodium Ion Battery Cathode Material with 140 mAh/g Capacity and 9.2μm Particle Size
Price:
1-1000USD/Negotiable
MOQ:
100g
Delivery Time:
5-7 days
Brand:
XWELL
Product Description
Product Overview
O3-type NaNiFeMnO₂ (BN-O3A) is a layered transition metal oxide cathode material designed for sodium-ion batteries. With the general formula NaNiₓFeᵧMn₁₋ₓ₋ᵧO₂, this material offers high theoretical capacity of approximately 140 mAh/g at 0.1C, cost-effectiveness through abundant iron and manganese resources, and excellent structural stability. The "O3" designation refers to the trigonal prismatic coordination of Na⁺ ions, which enables high sodium ion content while addressing challenges with irreversible phase transitions during cycling.
Key Features & Composition
Material Composition
- Typical stoichiometry: NaNi₁/₃Fe₁/₃Mn₁/₃O₂ (111-type) or variants like NaNi₀.₄Fe₀.₂Mn₀.₄O₂
- Transition metal synergy: Nickel enhances capacity, Manganese stabilizes structure, and Iron optimizes cost-performance balance
Performance Optimization
- Doping with elements like Titanium, Magnesium, or Copper stabilizes structure and enhances sodium ion diffusion
- Surface coatings including Al₂O₃ and NaTi₂(PO₄)₃ mitigate electrolyte corrosion and improve cycling performance
- Morphology control through spherical secondary particles (4-10 μm) with nano-sized primary grains enhances electrochemical kinetics
Technical Specifications
| Parameter | Unit | Specification | Value | Reference Standard |
|---|---|---|---|---|
| Sodium (Na) | wt% | 20.6 ± 0.3 | 20.7 | GB/T 27598-2011 |
| Nickel (Ni) | wt% | 17.6 ± 0.3 | 17.6 | GB/T 27598-2011 |
| Iron (Fe) | wt% | 16.7 ± 0.3 | 16.7 | - |
| Manganese (Mn) | wt% | 16.5 ± 0.3 | 16.5 | - |
| D10 Particle Size | μm | 7.0 ± 0.5 | 7.9 | GB/T 19077-2016 |
| D50 Particle Size | μm | 9.2 ± 0.5 | 9.7 | GB/T 19077-2016 |
| D90 Particle Size | μm | 11.5 ± 0.5 | 11.8 | GB/T 5162-202X |
| Tap Density | g/cm³ | ≥1.9 | 2.0 | - |
| Specific Surface Area (BET) | m²/g | ≤2.0 | 0.5 | GB/T 19587-2004 |
| 0.1C Capacity | mAh/g | 135 ± 2 | 136 | Half cell evaluation method |
| 1C Capacity | mAh/g | 130 ± 2 | 132 | Electrolyte: 1M NaPF6 in esters solvent |
| 50th Cycle Retention (1C) | % | - | 90 | - |
| NaOH Content | wt% | 0.3 | 0.3 | - |
Applications & Industry Prospects
BN-O3A represents a promising cathode material solution for large-scale energy storage applications, including grid storage systems and electric vehicles. Its cost-effectiveness and compatibility with existing lithium-ion battery manufacturing infrastructure make it particularly suitable for mass production. Recent technological advances in high-entropy doping and P/O hybrid phases continue to push performance boundaries, targeting energy densities exceeding 420 Wh/kg and cycle life beyond 500 cycles at 1C rate.
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Company
GUANGDONG XWELL TECHNOLOGY CO., LTD.
Location
Room 316, Building 3, No. 801, Qiaoxing Avenue, Xiaoluo Village, Shatou Street, Panyu District, Guangzhou
Contact Person
Sammy Qin