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Merck
모든 사진(2)

주요 문서

933953

Sigma-Aldrich

Sodium difluoro(oxalato)borate

greener alternative

≥99%, battery grade

동의어(들):

NaDFOB, NaFOB, Sodium difluoro(ethanedioato)borate

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About This Item

실험식(Hill 표기법):
C2BF2NaO4
CAS Number:
Molecular Weight:
159.82
MDL number:
UNSPSC 코드:
12352104
NACRES:
NA.21

Grade

battery grade

Quality Level

설명

Application: Battery manufacturing

분석

≥99%

양식

powder

환경친화적 대안 제품 특성

Design for Energy Efficiency
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sustainability

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불순물

≤0.2% H2O

음이온 미량물

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

양이온 미량물

Ca: ≤20 ppm
K: ≤20 ppm
Mg: ≤20 ppm

응용 분야

battery manufacturing

환경친화적 대안 카테고리

SMILES string

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

일반 설명

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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애플리케이션

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.

픽토그램

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신호어

Warning

유해 및 위험 성명서

Hazard Classifications

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

표적 기관

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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시험 성적서(COA)

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문서 라이브러리 방문

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)

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