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Merck

933953

Sigma-Aldrich

Sodium difluoro(oxalato)borate

greener alternative

≥99%, battery grade

Sinónimos:

NaDFOB, NaFOB, Sodium difluoro(ethanedioato)borate

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About This Item

Fórmula empírica (notación de Hill):
C2BF2NaO4
Número de CAS:
Peso molecular:
159.82
Número MDL:
Código UNSPSC:
12352104
NACRES:
NA.21

grado

battery grade

Nivel de calidad

descripción

Application: Battery manufacturing

Ensayo

≥99%

Formulario

powder

características de los productos alternativos más sostenibles

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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impurezas

≤0.2% H2O

trazas de anión

chloride (Cl-): ≤50 ppm
sulfate (SO42-): ≤20 ppm

trazas de catión

Ca: ≤20 ppm
K: ≤20 ppm
Mg: ≤20 ppm

aplicaciones

battery manufacturing

categoría alternativa más sostenible

cadena SMILES

O=C1C(O[B-](F)(F)([Na+])O1)=O

Descripción general

Sodium difluoro(oxalato)borate, also referred to as NaDFOB, is a high-purity and low-water content white crystalline powder that has become increasingly popular in the field of battery technology. NaDFOB is the sodium equivalent of lithium difluoro(oxalato)borate and is soluble in polar organic solvents (>1.0 M in carbonates), making it ideal for use in battery electrolytes. It exhibits excellent electrochemical stability, surpassing NaClO4, with NaDFOB-based carbonate electrolytes showing electrochemical stability windows above 5.5V vs Na+/Na. Our NaDFOB is manufactured to the highest standards to ensure its purity, enabling it to be used effectively in a wide range of battery applications.
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Aplicación

Sodium-difluoro(oxalato)borate, anhydrous and battery-grade with a purity of ≥99%, is a versatile electrolyte additive for sodium-ion batteries (SIBs). NaDFOB demonstrates superior compatibility with a range of solvents commonly employed in SIBs, unlike NaClO4 and NaPF6, which exhibit solvent-dependent performances. Additionally, NaDFOB is stable and does not produce any toxic or hazardous substances upon contact with air and water. A recent study found that the incorporation of NaDFOB as an additive significantly enhances the charge-discharge capacity and cycling performance of graphite anodes. Another study suggests that NaDFOB contributes to the formation of a stable solid electrolyte interphase (SEI) film on the surface of graphite anodes, resulting in a highly stable electrolyte/electrode interface. With these benefits, Sodium-difluoro(oxalato)borate is a promising solution for improving the performance and stability of sodium-ion batteries in various applications.

Pictogramas

Exclamation mark

Palabra de señalización

Warning

Frases de peligro

Clasificaciones de peligro

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Visite la Librería de documentos

Juner Chen et al.
Chemical communications (Cambridge, England), 51(48), 9809-9812 (2015-05-20)
A new electrolyte salt, sodium-difluoro(oxalato)borate (NaDFOB), was synthesized and studied, which enables excellent reversible capacity and high rate capability when used in Na/Na0.44MnO2 half cells. NaDFOB has excellent compatibility with various common solvents used in Na-ion batteries, in strong contrast
Sodium Difluoro(oxalato)borate as An Electrolyte Additive to Improve the Electrochemical Performance of Graphite Anode
Yang-yang Yao, et al.
International Journal of Electrochemistry, 21, 387-392 (2015)
Application of Partially Fluorinated Ether for Improving Performance of Lithium/Sulfur Batteries
Lu Hai, et al.
Journal of the Electrochemical Society, 162 (2015)

Artículos

Discover the role of electrolytes in sodium-ion batteries, to enhance performance, safety, and sustainability in energy storage solutions.

Discover the role of electrolytes in sodium-ion batteries, to enhance performance, safety, and sustainability in energy storage solutions.

Discover the role of electrolytes in sodium-ion batteries, to enhance performance, safety, and sustainability in energy storage solutions.

Discover the role of electrolytes in sodium-ion batteries, to enhance performance, safety, and sustainability in energy storage solutions.

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