Prussian Blue-A Powder for Sodium-Ion Battery Cathode

$120.82

Número de artículo:MA-EN-CA-008201

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✓ Seleccionado: 10g

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Especificaciones

Detalles

This product is a Prussian blue-A powder developed for sodium-ion battery cathode applications, belonging to the prussiate-type cathode material family with a cubic-like microscopic morphology. It features a controlled chemical composition with sodium, iron, and manganese content (Na approximately 17.7 wt%, Fe 35.25 wt%, Mn 14.25 wt%) and low residual impurities, ensuring consistent electrochemical performance. The material delivers a first discharge capacity of ≥140 mAh/g with a first-cycle efficiency exceeding 95%, tested under 0.1C rate in a CR2032 coin cell with sodium electrolyte. Its particle size distribution (D50 around 5 μm) and tap density (0.89 g/cm³) support good electrode processability. Due to the presence of crystal water, the powder requires vacuum-sealed storage and careful baking at 110 °C under high vacuum (10 Pa) for at least 10 hours, or at 170 °C for extended periods if lower vacuum is used. This product is suitable for research and development of high-performance sodium-ion battery cathodes.

Materials need to be stored in vacuum seal

The electrolyte used during the test is: sodium electrolyte (KLD-NF35)

Baking conditions for pole sheets: 110℃ 10h 10Pa (Crystal water is difficult to bake. If the vacuum level of 10Pa cannot reach 10Pa, the temperature needs to be increased to 170℃ and the baking time is > 5 days)

Sodium ion cathode material, prussiate type

Microscopic morphology: Cubic-like shape

Serial number	Test items			unit	Specification	Test results	Inspection method or instrument
1	Chemical composition	Na		(wt%)	17.0±2.0	17.72	ICP
2		Fe		(wt%)	35.0±0.5	35.25
3		Mn		(wt%)	14.5.0±0.5	14.25
4		Na2CO3		(wt%)	≤1.000	N.D.	Titration method
5		NaOH		(wt%)	≤1.000	N.D.	Titration method
6	Physical characteristics	Particle size distribution	D10	(μm)	≥2.0	2.425	Laser particle size analyzer
7			D50	(μm)	4.0~6.0	5.012
8			D90	(μm)	≤11.0	9.502
9		AD		（g/cm3）	≥0.2	0.30	Fully automatic specific surface and porosity analyzer
10		TD		（g/cm3）	≤1.0	0.89	Tapping density measuring instrument
11		pH		/	≤9.0	8.23	pH meter
12		Moisture		(wt%)	Crystal water	1945	Moisture measuring instrument
13	Electrochemical properties	First discharge capacity		(mAh/g)	≥140.0	143.8	CR2032 0.1/0.1C(4.0-2.0V)
14	Electrochemical properties	First time efficiency		(%)	≥95.0	98.1	CR2032 0.1/0.1C(4.0-2.0V)