Lithium difluoro(oxalato)borate(1-) Chemical Properties

Melting point:

265-271°C

Boiling point:

275.3℃ at 102kPa

Density 

2.01-2.065g/cm3 at 20℃

vapor pressure 

0.003Pa at 20℃

storage temp. 

Inert atmosphere,Room Temperature

solubility 

Water (Slightly)

form 

powder

color 

White to Off-White

InChI

InChI=1S/C2BF2O4.Li/c4-3(5)8-1(6)2(7)9-3;/q-1;+1

InChIKey

MEDDCIKGDMDORY-UHFFFAOYSA-N

SMILES

[F-][B+3]1([O-]C(=O)C(=O)[O-]1)[F-].[Li+]

LogP

-1.18--1.1 at 25℃ and pH2-8

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26

WGK Germany 

3

HS Code 

29319090

Lithium difluoro(oxalato)borate(1-) Usage And Synthesis

Appearance

White Solid

Uses

LiODFB is used as a thermally stable novel salt and an electrolytic additive for lithium-ion batteries. It facilitates the formation of stable solid electrolyte interphase (SEI) on the negative electrode during the fabrication of the cell. It substantially enhances the cyclic performance, capacity and power retention of the electrochemical system.

Uses

Lithium difluorooxalatoborate (LIODFB) is a salt for high-performance Li-ion batteries with improved cycle life; power capability; low temperature and high rate performance of the battery. Lithium difluorooxalatoborate can be used as a film-forming additive in the electrolyte of lithium batteries or replace lithium hexafluorophosphate as a conductive salt.

General Description

This product has been enhanced for energy efficiency.

Advantages

lithium difluoro(oxalato)borate(1-), a hybrid salt of lithium bis(oxalate)borate(LiBOB) and lithium tetrafluoroborate(LiBF4), possesses beneficial properties of both parent anions. These merits include 1) a relatively high ionic conductivity over a wide temperature range, 2) the ability to not only support metallic lithium cycling reversibly on the surface of a copper anode current collector but also passivate the aluminum cathode current collector at high voltage, 3) the active formation of a SEI layer, and 4) the possibility to increase battery safety protection and overcharge tolerance[1].

References

[1] Hongming Zhou. “Synthesis of lithium difluoro(oxalate)borate (LiODFB), phase diagram and ions coordination of LiODFB in dimethyl carbonate.” Journal of Central South University 25 1 (2018): 550–560.

Lithium difluoro(oxalato)borate(1-)(409071-16-5)Related Product Information

• Dimethyl carbonate
• Lithium tetraborate
• Lithium hydroxide
• FERROUS SULFATE